Water-based epoxy modified paint temperature control reaction device
Patent Information
- Application Number
- CN202522623867.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-11
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-11
AI Technical Summary
[0005]本实用新型要解决的技术问题是：现有技术中存在进料温差导致产品不稳的缺点，为此我们提出一种水性环氧改性漆控温反应装置
本实用新型中，控温组件通过进料温控腔与主控温腔的协同作用，实现进料预处理和罐内整体控温的双重温控。进料阶段，循环导热油在进料温控腔内对物料进行预热或预冷，使物料进入罐内前温度与反应体系趋于一致，避免温差引发的局部反应波动；罐内反应阶段，控温模块精准调节主控温腔内导热油温度，配合循环组件的循环输送，确保罐内温度均匀分布，有效解决传统装置温控单一、温差波动大的问题，保障反应的稳定性和产品批次一致性。
Smart Images
Figure CN224912401U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of temperature-controlled reaction technology for paints, and in particular to a temperature-controlled reaction device for water-based epoxy modified paints. Background Technology
[0002] Waterborne epoxy modified paints are widely used in various fields such as construction, machinery manufacturing, and ship corrosion protection due to their environmental friendliness, strong adhesion, and excellent corrosion resistance. The core of their production process is the chemical reaction of various resins, curing agents, modifiers, and solvents. The stability of the reaction temperature and the uniformity of material mixing directly determine the product's performance parameters, such as film hardness, gloss, and weather resistance.
[0003] As market demands for the quality of waterborne epoxy modified paints continue to rise, refined control of the production process has become a key focus for the industry. Traditional production processes often rely solely on temperature control of the reaction vessel itself, lacking a temperature pretreatment mechanism for the feeding stage. Furthermore, material mixing depends on simple agitator structures, resulting in low mixing efficiency and failing to meet the production requirements of high-performance waterborne epoxy modified paints.
[0004] The above-mentioned and existing related technologies have the following defects: insufficient temperature control accuracy. When the material enters the reaction vessel from the feed port, there is often a large temperature difference between the initial temperature and the reaction temperature inside the vessel, which leads to local reaction environment fluctuations, causing problems such as incomplete resin crosslinking and poor modification effect, thus affecting the batch stability of the product. Summary of the Invention
[0005] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of unstable products due to the temperature difference of the feed. To this end, we propose a temperature control reaction device for water-based epoxy modified paint.
[0006] To achieve the above objectives, this application adopts the following technical solution: a water-based epoxy modified paint temperature control reaction device, including a reaction tank body and a reaction tank cover, the reaction tank cover is detachably and fixedly installed on the top of the reaction tank body, a temperature control component is provided outside the reaction tank body, a mixing component is provided inside the reaction tank body, and a discharge valve pipe is fixedly connected to the bottom of the reaction tank body. The temperature control assembly includes a pair of feed cylinders, which are fixedly installed on the top surface of the reactor lid. A feed hopper is fixedly installed inside the pair of feed cylinders. The inner side wall of the feed cylinder and the outer side wall of the feed hopper form a feed temperature control cavity. A connecting pipe is connected to the bottom of the feed hopper. The connecting pipe passes through the bottom surface of the feed cylinder and the reactor lid to the reactor body. A temperature control cylinder is fixedly fitted outside the reactor body. The inner side wall of the temperature control cylinder and the outer side wall of the reactor body form a main temperature control cavity. Several temperature control modules are fixedly installed on the inner side wall of the temperature control cylinder.
[0007] Preferably, the feeding temperature control chamber and the main temperature control chamber are both filled with circulating heat transfer oil, and a circulating component for circulating heat transfer oil is provided between a pair of feeding cylinders. The inner diameter of the feeding hopper gradually decreases from top to bottom, the inner diameter of the connecting pipe is consistent with the inner diameter of the bottom end of the feeding hopper, and a dispersion turbine fan is fixedly installed at the bottom end of the connecting pipe.
[0008] Preferably, the circulation assembly includes a circulation pump, which is fixedly installed on the top surface of the reaction vessel lid. The circulation pump is connected to a pair of first infusion pipes, which are respectively fixedly inserted through the outer walls of a pair of feed cylinders and connected to the feed temperature control chamber. The top of the temperature control cylinder is connected to a pair of second infusion pipes, which are respectively fixedly inserted through the outer walls of a pair of feed cylinders and connected to the feed temperature control chamber.
[0009] Preferably, the mixing component includes a fixing rod, which is fixedly installed at the center of the bottom surface of the reaction vessel lid. A variable frequency motor is fixedly installed on the top surface of the reaction vessel lid. The output shaft of the variable frequency motor is coaxially fixedly connected to the fixing rod. An upper fixing frame is coaxially fixedly sleeved on the upper part of the fixing rod, and a lower fixing frame is coaxially fixedly sleeved on the lower part of the fixing rod. Several movable scrapers are fixedly installed on the outer wall of the upper fixing frame, and the ends of the several movable scrapers are fixedly connected to the outer wall of the lower fixing frame.
[0010] Preferably, the outer walls of several movable scrapers are attached to the inner wall of the reaction vessel body, and the cross-section of several movable scrapers is trapezoidal, with the cross-sectional length of the movable scrapers near the inner wall of the reaction vessel body being smaller than the cross-sectional length away from the inner wall of the reaction vessel body.
[0011] Preferably, a number of mixing crossbars are fixedly installed on the fixed rod, and the mixing crossbars are arranged between the upper fixed frame and the lower fixed frame. The cross section of the mixing crossbar is spindle-shaped, and a rotating round rod is rotatably installed at the end of the mixing crossbar. Both ends of the rotating round rod are spherical surfaces. The rotating round rod is arranged parallel to the fixed rod in the stationary state. When the fixed rod rotates, the rotating round rod rotates along the inner wall of the reaction vessel body with the rotatable connection point with the mixing crossbar as the axis.
[0012] The technical effects and advantages of this utility model are as follows: In this invention, the temperature control component achieves dual temperature control—both pre-treatment of the feed and overall temperature control within the tank—through the synergistic effect of the feed temperature control chamber and the main temperature control chamber. During the feeding stage, circulating heat transfer oil preheats or precools the material within the feed temperature control chamber, ensuring that the material's temperature before entering the tank is consistent with the reaction system, thus preventing localized reaction fluctuations caused by temperature differences. During the reaction stage within the tank, the temperature control module precisely adjusts the temperature of the heat transfer oil within the main temperature control chamber, working in conjunction with the circulation component to ensure uniform temperature distribution within the tank. This effectively solves the problems of single temperature control and large temperature fluctuations in traditional devices, guaranteeing reaction stability and batch-to-batch product consistency.
[0013] In this invention, the mixing component adopts a multi-level mixing design. The movable scraper fits tightly against the tank wall, and can efficiently remove the material adhering to the tank wall when rotating, avoiding raw material waste and local side reactions. The spindle-shaped cross section of the mixing crossbar reduces the stirring resistance, and the rotating round rod at the end adjusts the angle dynamically with the stirring, which can form multi-directional shearing and tumbling of the material, breaking the mixing dead angle of traditional stirring. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the external three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a three-dimensional structural diagram of the temperature control component of this utility model; Figure 4 This is a schematic cross-sectional view of the temperature control component of this utility model; Figure 5 This is a schematic cross-sectional view of the main body of the reaction vessel of this utility model; Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This is a schematic diagram of the hybrid component structure of this utility model; Figure 8 This is a schematic diagram of the rotating round rod structure of this utility model.
[0015] Legend: 1. Reactor body; 2. Reactor lid; 3. Temperature control assembly; 31. Feed cylinder; 32. Feed hopper; 33. Feed temperature control chamber; 34. Connecting pipe; 341. Dispersion turbine; 35. Temperature control cylinder; 36. Main temperature control chamber; 37. Temperature control module; 38. Circulation assembly; 381. Circulation pump; 382. First infusion pipe; 383. Second infusion pipe; 4. Mixing assembly; 41. Fixing rod; 42. Variable frequency motor; 43. Upper fixing frame; 44. Lower fixing frame; 45. Movable scraper; 46. Mixing crossbar; 47. Rotating round rod; 5. Discharge valve pipe. Detailed Implementation
[0016] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0017] Reference Figures 1 to 6 As shown, this utility model provides a technical solution: a temperature-controlled reaction device for water-based epoxy modified paint, including a reaction tank body 1 and a reaction tank cover 2. The reaction tank cover 2 is detachably and fixedly installed on the top of the reaction tank body 1, facilitating maintenance and cleaning of the inside of the reaction tank. A temperature control component 3 is provided outside the reaction tank body 1 for precisely controlling the temperature inside the reaction tank. A mixing component 4 is provided inside the reaction tank body 1 for thoroughly mixing the reactants. A discharge valve pipe 5 is fixedly connected to the bottom of the reaction tank body 1 for discharging the product after the reaction is completed.
[0018] The temperature control assembly 3 includes a pair of feed cylinders 31, which are fixedly installed on the top surface of the reaction vessel cover 2. In the production process of water-based epoxy modified paint, different reactants are typically added in batches or stages; therefore, the pair of feed cylinders 31 can meet the feeding requirements of different materials. A feed hopper 32 is fixedly installed inside each feed cylinder 31. The feed hopper 32 is funnel-shaped to facilitate the smooth introduction of materials. The inner wall of the feed cylinder 31 and the outer wall of the feed hopper 32 enclose a feeding temperature control chamber 33. This feeding temperature control chamber 33 is used to preheat or precool the material about to enter the reaction vessel body 1, making its temperature close to the temperature of the material inside the reaction vessel, thereby avoiding local temperature fluctuations caused by excessive temperature differences and ensuring the stability of the reaction. A connecting pipe 34 is connected to the bottom of the feed hopper 32. The connecting pipe 34 is fixedly inserted through the bottom surface of the feed cylinder 31 and the reaction vessel cover 2 into the reaction vessel body 1, introducing the pretreated material into the interior of the reaction vessel body 1.
[0019] A temperature control cylinder 35 is fixedly fitted onto the outside of the reaction vessel body 1. The inner wall of the temperature control cylinder 35 and the outer wall of the reaction vessel body 1 enclose a main temperature control cavity 36. The main temperature control cavity 36 is used to control the temperature of the entire material inside the reaction vessel body 1, ensuring that the reaction proceeds within a set temperature range. Several temperature control modules 37 are fixedly installed on the inner wall of the temperature control cylinder 35. These temperature control modules 37 can be electric heaters, cooling coils, or semiconductor temperature control elements, etc. By precisely controlling their working state, the temperature of the circulating heat transfer oil in the main temperature control cavity 36 can be precisely adjusted, thereby achieving precise control of the material temperature inside the reaction vessel body 1.
[0020] In a preferred embodiment, circulating heat transfer oil is filled between the feed temperature control chamber 33 and the main temperature control chamber 36. The heat transfer oil has excellent thermal conductivity and stability, enabling efficient heat transfer. A circulation assembly 38 for circulating heat transfer oil is provided between a pair of feed cylinders 31. This circulation assembly 38 allows the heat transfer oil to circulate between the feed temperature control chamber 33 and the main temperature control chamber 36, thereby achieving effective heat exchange and uniform temperature distribution, further improving temperature control efficiency and accuracy. The inner diameter of the feed hopper 32 gradually decreases from top to bottom; this conical design facilitates smooth material flow and avoids blockage. The inner diameter of the connecting pipe 34 is consistent with the inner diameter of the bottom end of the feed hopper 32, ensuring that material smoothly enters the connecting pipe 34 from the feed hopper 32. A dispersion turbine fan 341 is fixedly installed at the bottom end of the connecting pipe 34. When the material enters the main body 1 of the reaction vessel, the dispersion turbine 341 can initially disperse the material, making it more uniformly mixed with the material in the vessel, avoiding material accumulation or excessively high local concentration, and accelerating the mixing process.
[0021] Furthermore, the circulation assembly 38 includes a circulation pump 381, which is fixedly installed on the top surface of the reaction vessel cover 2. The circulation pump 381 is the core component driving the circulation of the heat transfer oil. The circulation pump 381 is connected to a pair of first delivery pipes 382, which are fixedly connected to the outer walls of a pair of feed cylinders 31 and feed temperature control chambers 33. The first delivery pipes 382 transfer the heat transfer oil pumped by the circulation pump 381 between the pair of feed temperature control chambers 33. The top of the temperature control cylinder 35 is connected to a pair of second delivery pipes 383, which are fixedly connected to the outer walls of a pair of feed cylinders 31 and feed temperature control chambers 33. The second delivery pipes 383 introduce the heat transfer oil in the main temperature control chamber 36 into the feed temperature control chamber 33, or lead the heat transfer oil in the feed temperature control chamber 33 back to the main temperature control chamber 36, forming a complete circulation loop to ensure efficient flow and heat exchange of the heat transfer oil throughout the temperature control system.
[0022] like Figure 7 and Figure 8As shown, the mixing component 4 includes a fixing rod 41, which is fixedly installed at the center of the bottom surface of the reaction vessel cover 2, serving as the central axis of the mixing component 4. A variable frequency motor 42 is fixedly installed on the top surface of the reaction vessel cover 2, and the output shaft of the variable frequency motor 42 is coaxially fixedly connected to the fixing rod 41. The variable frequency motor 42 can provide an adjustable speed to adapt to the mixing requirements of different materials and reaction stages. An upper fixing frame 43 is coaxially fixedly sleeved on the upper part of the fixing rod 41, and a lower fixing frame 44 is coaxially fixedly sleeved on the lower part of the fixing rod 41. The upper fixing frame 43 and the lower fixing frame 44 provide support for the movable scraper 45 of the mixing component 4. Several movable scrapers 45 are fixedly installed on the outer wall of the upper fixing frame 43, and the ends of the movable scrapers 45 are fixedly connected to the outer wall of the lower fixing frame 44. When the fixing rod 41 rotates, the movable scrapers 45 can scrape the inner wall of the reaction vessel body 1, preventing materials from sticking to the wall and promoting the mixing of materials.
[0023] In a preferred embodiment, the outer walls of a plurality of movable scraper blades 45 are in contact with the inner wall of the reaction vessel body 1. This contact design ensures that the scraper blades can effectively remove material from the vessel wall, preventing scaling and localized overheating. The cross-section of the plurality of movable scraper blades 45 is trapezoidal, with the cross-sectional length of the movable scraper blades 45 near the inner wall of the reaction vessel body 1 being smaller than the cross-sectional length away from the inner wall of the reaction vessel. This trapezoidal cross-sectional design allows the scraper blades to exert a certain shearing and tumbling effect on the material while scraping the wall, further improving the mixing efficiency.
[0024] Furthermore, several mixing crossbars 46 are fixedly installed on the fixed rod 41, and these mixing crossbars 46 are positioned between the upper fixed frame 43 and the lower fixed frame 44. When the fixed rod 41 rotates, the mixing crossbars 46 can stir and mix the materials inside the reaction vessel. The cross-section of the mixing crossbars 46 is spindle-shaped. The spindle-shaped cross-section reduces stirring resistance and promotes the transition from laminar to turbulent flow. This spindle-shaped design reduces the resistance of the mixing crossbars when moving through the materials, while also facilitating material flow and mixing. A rotating round rod 47 is rotatably installed at the end of the mixing crossbars 46, with both ends of the rotating round rod 47 having spherical surfaces. The spherical surface design reduces friction with the materials and allows the rotating round rod 47 to rotate freely within the materials. In a stationary state, the rotating round rod 47 is parallel to the fixed rod 41. When the fixed rod 41 rotates, the rotating round rod 47 rotates along the inner wall of the reaction vessel body 1 with the rotatable connection point with the mixing crossbars 46 as the axial direction. This design allows the rotating rod 47 to automatically adjust its angle according to the flow state and resistance of the material during the mixing process, further enhancing the agitation and mixing effect of the material. In particular, for high-viscosity materials, it can effectively avoid dead corners and improve the uniformity of mixing.
[0025] Through the above structural design, precise temperature control and efficient mixing of the waterborne epoxy modified paint reaction process are achieved. The dual temperature control mechanism of the feed temperature control chamber 33 and the main temperature control chamber 36, together with the temperature control module 37 and the circulation component 38, ensures the stability and uniformity of the reaction temperature. The design of the movable scraper 45 and the rotating rod 47 in the mixing component 4 effectively solves the problems of material sticking to the wall and uneven mixing, thereby significantly improving the production efficiency and product quality of the waterborne epoxy modified paint.
[0026] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A temperature-controlled reaction device for water-based epoxy modified paint, characterized in that, The reaction vessel includes a reaction vessel body and a reaction vessel cover. The reaction vessel cover is detachably and fixedly installed on the top of the reaction vessel body. A temperature control component is provided on the outside of the reaction vessel body, and a mixing component is provided inside the reaction vessel body. A discharge valve pipe is fixedly connected to the bottom of the reaction vessel body. The temperature control assembly includes a pair of feed cylinders, which are fixedly installed on the top surface of the reaction vessel lid. A feed hopper is fixedly installed inside the pair of feed cylinders. The inner sidewall of the feed cylinder and the outer sidewall of the feed hopper form a feed temperature control cavity. A connecting pipe is connected to the bottom end of the feed hopper. The connecting pipe passes through the bottom surface of the feed cylinder and the reaction vessel lid to the inside of the reaction vessel body. A temperature control cylinder is fixedly sleeved on the outside of the reaction vessel body. The inner sidewall of the temperature control cylinder and the outer sidewall of the reaction vessel body form a main temperature control cavity. Several temperature control modules are fixedly installed on the inner sidewall of the temperature control cylinder.
2. The temperature-controlled reaction device for waterborne epoxy modified paint according to claim 1, characterized in that: The feeding temperature control chamber and the main temperature control chamber are both filled with circulating heat transfer oil. A circulating component for circulating heat transfer oil is provided between a pair of feeding cylinders. The inner diameter of the feeding hopper gradually decreases from top to bottom. The inner diameter of the connecting pipe is the same as the inner diameter of the bottom end of the feeding hopper. A dispersion turbine fan is fixedly installed at the bottom end of the connecting pipe.
3. The temperature-controlled reaction device for waterborne epoxy modified paint according to claim 2, characterized in that: The circulation assembly includes a circulation pump, which is fixedly installed on the top surface of the reaction vessel lid. The circulation pump is connected to a pair of first infusion pipes, which are respectively fixedly inserted through the outer walls of a pair of feed cylinders and connected to the feed temperature control chamber. The top of the temperature control cylinder is connected to a pair of second infusion pipes, which are respectively fixedly inserted through the outer walls of a pair of feed cylinders and connected to the feed temperature control chamber.
4. The temperature-controlled reaction device for waterborne epoxy modified paint according to claim 1, characterized in that: The mixing assembly includes a fixing rod, which is fixedly installed at the center of the bottom surface of the reaction vessel lid. A variable frequency motor is fixedly installed on the top surface of the reaction vessel lid. The output shaft of the variable frequency motor is coaxially fixedly connected to the fixing rod. An upper fixing frame is coaxially fixedly sleeved on the upper part of the fixing rod, and a lower fixing frame is coaxially fixedly sleeved on the lower part of the fixing rod. Several movable scrapers are fixedly installed on the outer wall of the upper fixing frame, and the ends of the several movable scrapers are fixedly connected to the outer wall of the lower fixing frame.
5. The temperature-controlled reaction device for waterborne epoxy modified paint according to claim 4, characterized in that: The outer walls of several movable scrapers are attached to the inner wall of the reaction vessel body, and the cross-section of several movable scrapers is trapezoidal. The cross-sectional length of the movable scraper near the inner wall of the reaction vessel body is smaller than the cross-sectional length away from the inner wall of the reaction vessel body.
6. The temperature-controlled reaction device for waterborne epoxy modified paint according to claim 4, characterized in that: Several mixing crossbars are fixedly installed on the fixed rod. The mixing crossbars are arranged between the upper fixed frame and the lower fixed frame. The cross section of the mixing crossbar is spindle-shaped. A rotating round rod is rotatably installed at the end of the mixing crossbar. Both ends of the rotating round rod are spherical surfaces. The rotating round rod is arranged parallel to the fixed rod in the stationary state. When the fixed rod rotates, the rotating round rod rotates along the inner wall of the reaction vessel body with the rotatable connection point with the mixing crossbar as the axis.