Drying equipment for producing environment-friendly waterborne polyurethane resin
By introducing a drying mechanism and sensor monitoring system into the drying equipment, the problems of low drying efficiency and high energy consumption of waterborne polyurethane resin are solved, achieving uniform heating and automatic control, thus improving product quality and energy efficiency.
Patent Information
- Application Number
- CN202423038055.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing drying equipment lacks a drying mechanism, resulting in long drying time and high energy consumption for waterborne polyurethane resins. Furthermore, improper drying conditions may lead to poor film-forming performance and surface defects such as cracking, blistering, and reduced gloss.
A drying mechanism was designed, comprising a drying cylinder, a feed inlet, a discharge outlet, an air injection pipe, a fan, an electric heating wire, a connecting pipe, a heating plate, a shell, a drive motor, and a transmission shaft. The heat source is provided by the fan and the electric heating wire, and the stirring function of the stirring blades and scrapers is combined to achieve uniform heating of the resin and prevent sedimentation. Temperature and humidity sensors are used to monitor and automatically adjust the drying parameters to ensure uniform drying.
This technology enables efficient drying of waterborne polyurethane resins, shortens drying time, reduces energy consumption, improves film-forming performance and product quality, and avoids coating defects.
Smart Images
Figure CN223470443U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to polyurethane production related technical field especially relates to a drying equipment for environmental protection type waterborne polyurethane resin production. BACKGROUND
[0002] With the continuous enhancement of environmental protection consciousness and the increasingly strict relevant environmental protection regulations, the traditional solvent type coating and resin are gradually limited to use because of the harm of volatile organic compound emission to the environment and human health, and the waterborne polyurethane resin as a kind of high-performance, low-pollution environmental protection material arises at the historic moment, has obtained the wide application and the rapid development in many fields such as coating, adhesive, leather finishing, and its production scale is expanding, the requirement of each link including drying process in the production process is also higher and higher, which promotes the research and innovation of the drying equipment specially for waterborne polyurethane resin, therefore, especially need a drying equipment for environmental protection type waterborne polyurethane resin production.
[0003] But the existing drying equipment, in the use process, because the drying equipment is internally not corresponding drying mechanism, to waterborne polyurethane resin is dried, possibly cannot efficiently satisfy its drying requirement, prone to the problem of long drying time, high energy consumption, if drying condition control is improper, such as temperature is too high, drying speed is too fast, possibly leads to the film-forming property of resin to be poor, appears coating film surface defect such as cracking, blistering, gloss reduction etc., influences the quality of waterborne polyurethane resin product condition to occur. UTILITY MODEL CONTENT
[0004] The utility model discloses a drying equipment for environmental protection type waterborne polyurethane resin production, to solve the problem of the existing drying equipment in the background art, in the use process, because the drying equipment is internally not corresponding drying mechanism, to waterborne polyurethane resin is dried, possibly cannot efficiently satisfy its drying requirement, prone to the problem of long drying time, high energy consumption, if drying condition control is improper, such as temperature is too high, drying speed is too fast, possibly leads to the film-forming property of resin to be poor, appears coating film surface defect such as cracking, blistering, gloss reduction etc., influences the quality of waterborne polyurethane resin product condition to occur.
[0005] To realize above-mentioned purpose, the utility model provides following technical scheme: a drying equipment for environmental protection type waterborne polyurethane resin production, including support, the one end of support is fixedly connected with drying cylinder, the one end of drying cylinder is provided with drying mechanism;
[0006] The drying mechanism includes a feeding port, a discharging port, an air injection pipe, a fan, an electric heating wire, a connecting pipe, a ventilation port, a heating plate, a shell, a driving motor and a transmission shaft, one end of the drying cylinder is fixedly connected with the feeding port, one side of the drying cylinder is fixedly connected with the discharging port, the other end of the drying cylinder is fixedly connected with the air injection pipe, one side of the inner wall surface of the air injection pipe is fixedly connected with the fan, the other side of the inner wall surface of the air injection pipe is fixedly connected with the electric heating wire, one side of the air injection pipe is fixedly connected with the connecting pipe, the other side of the drying cylinder is fixedly connected with the ventilation port, the inside of the drying cylinder is fixedly connected with the heating plate, the other end of the drying cylinder is fixedly connected with the shell, the inner wall of the shell is fixedly connected with the driving motor, and the output end of the driving motor is fixedly connected with the transmission shaft.
[0007] Preferably, the connecting pipe is fixedly connected with the drying cylinder, and the connecting pipe is provided as four groups.
[0008] Preferably, the transmission shaft is connected with the drying cylinder bearing.
[0009] Preferably, one side of the transmission shaft is fixedly connected with a stirring blade, the other side of the transmission shaft is fixedly connected with a connecting rod, and one side of the connecting rod is fixedly connected with a scraper.
[0010] Preferably, the stirring blade is provided as three groups, and the connecting rod is provided as two groups.
[0011] Preferably, the scraper is tightly attached to the inner wall of the drying cylinder, and the scraper is in a spiral shape.
[0012] Preferably, the heating plate is provided as three groups.
[0013] Compared with the prior art, the environmental protection type waterborne polyurethane resin production drying equipment has the advantages that: the corresponding drying mechanism is arranged in the equipment, so that the drying requirement of the waterborne polyurethane resin can be efficiently met when the waterborne polyurethane resin is dried, the problems of long drying time and high energy consumption are avoided, the uniformity of temperature distribution is ensured, the evaporation speed of moisture is accelerated, the energy utilization rate is improved, the energy consumption is reduced, and the quality of the polyurethane resin product is greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a side view appearance structure schematic view of the utility model;
[0015] Figure 2 It is a part drying cylinder and scraper mutual cooperation structure schematic view of the utility model;
[0016] Figure 3 It is a part drying cylinder and scraper mutual cooperation structure schematic view of the utility model; Figure 2 It is a part drying cylinder and scraper mutual cooperation structure schematic view of the utility model;
[0017] Figure 4 Part of the injection of the air duct and fan cooperation structure schematic diagram of the utility model shows;
[0018] Figure 5 Part of the drying cylinder and heating plate cooperation structure schematic diagram of the utility model shows.
[0019] In the figure: 1, support; 2, drying cylinder; 3, drying mechanism; 301, feed inlet; 302, discharge port; 303, air injection duct; 304, fan; 305, heating wire; 306, connecting pipeline; 307, ventilation opening; 308, heating plate; 309, shell; 310, driving motor; 311, transmission shaft; 312, stirring blade; 313, connecting rod; 314, scraper. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0021] Please refer to Figures 1-5 The utility model provides a kind of technical solutions: a kind of drying equipment for production of environment-friendly waterborne polyurethane resin, including support 1, one end of support 1 is fixedly connected with drying cylinder 2, one end of drying cylinder 2 is provided with drying mechanism 3;
[0022] The drying mechanism 3 comprises a feeding port 301, a discharging port 302, an air injection pipe 303, a fan 304, an electric heating wire 305, a connecting pipe 306, a ventilation port 307, a heating plate 308, an outer shell 309, a driving motor 310 and a transmission shaft 311. One end of the drying cylinder 2 is fixedly connected with the feeding port 301, one side of the drying cylinder 2 is fixedly connected with the discharging port 302, the other end of the drying cylinder 2 is fixedly connected with the air injection pipe 303, one side of the inner wall surface of the air injection pipe 303 is fixedly connected with the fan 304, the other side of the inner wall surface of the air injection pipe 303 is fixedly connected with the electric heating wire 305, one side of the air injection pipe 303 is fixedly connected with the connecting pipe 306, the other side of the drying cylinder 2 is fixedly connected with the ventilation port 307, the inside of the drying cylinder 2 is fixedly connected with the heating plate 308, the other end of the drying cylinder 2 is fixedly connected with the outer shell 309, the inner wall of the outer shell 309 is fixedly connected with the driving motor 310, and the output end of the driving motor 310 is fixedly connected with the transmission shaft 311. During use, the feeding can be controlled through the valve of the feeding port 301, the discharging can be controlled through the valve of the discharging port 302 on the side of the drying cylinder 2, the fan 304 and the electric heating wire 305 provide the main heat source to generate hot air, the heating plate 308 assists in heating, and the waterborne polyurethane resin is evenly heated. The waterborne polyurethane resin to be dried is fed above the feeding port 301, the first valve of the feeding port 301 is slowly opened, the feeding speed of the waterborne polyurethane resin is controlled, the waterborne polyurethane resin is evenly dropped into the drying cylinder 2, attention is paid to avoid that the waterborne polyurethane resin is accumulated in one place during the feeding process, the feeding speed can be appropriately adjusted according to the actual situation, after the waterborne polyurethane resin enters the drying cylinder 2, the waterborne polyurethane resin is continuously stirred and turned over under the action of the stirring blade 312, at the same time, the resin receives the hot air drying of the fan 304 and the electric heating wire 305, the temperature sensor and the humidity sensor monitor the temperature and humidity changes in the shell in real time, and feed the data to the external control system, the external control system automatically adjusts the power of the electric heating wire 305 and the heating plate 308, the rotating speed of the fan 304 and the like according to the set parameters, so as to maintain a stable drying environment.
[0023] Further, the connecting pipe 306 is fixedly connected with the drying cylinder 2, the connecting pipe 306 is provided in four groups, through the setting of the connecting pipe 306 and the drying cylinder 2, the temperature in the drying cylinder 2 can be increased by generating hot air, so that the water in the waterborne polyurethane resin can evaporate quickly, thereby achieving the purpose of drying, through the setting of the four groups of connecting pipes 306, the four groups of connecting pipes 306 can cooperate with each other, thereby achieving the purpose of improving the drying efficiency of the waterborne polyurethane resin.
[0024] Further, the transmission shaft 311 is connected with the bearing of the drying cylinder 2, through the setting of the transmission shaft 311 and the drying cylinder 2, the transmission shaft 311 can stably rotate, thereby improving the stability of the device.
[0025] Further, one side of the transmission shaft 311 is fixedly connected with the stirring blade 312, the other side of the transmission shaft 311 is fixedly connected with the connecting rod 313, one side of the connecting rod 313 is fixedly connected with the scraper 314, in the use process, the transmission shaft 311 stirs the water-based polyurethane with the stirring blade 312, prevents the deposition accumulation, the scraper 314 is driven by the driving motor 310, and the water-based polyurethane adhered to the inner wall of the drying cylinder 2 is cleaned, in addition, the temperature sensor and the humidity sensor are distributed in the drying cylinder 2, for monitoring the real-time temperature and humidity and feeding back to the external control system, the external control system receives the sensor signal, automatically controls the operation of each equipment, and ensures that the drying process is accurately executed.
[0026] Further, the stirring blade 312 is provided with three groups, the connecting rod 313 is provided with two groups, through the setting of the three groups of stirring blades 312, the stirring blade 312 can stir the resin, so that the resin is heated more uniformly in the drying process, the drying quality and efficiency are improved, through the setting of the two groups of connecting rods 313, the connection between the scraper 314 and the transmission shaft 311 is more stable, thereby facilitating the scraper 314 to clean the water-based polyurethane on the inner wall of the drying cylinder 2.
[0027] Further, the scraper 314 is closely attached to the inner wall of the drying cylinder 2, the scraper 314 is in a spiral shape, through the setting of the scraper 314 and the drying cylinder 2, when the driving motor 310 drives the connecting rod 313 to rotate, the scraper 314 can rotate together with the connecting rod 313, and the water-based polyurethane adhered to the inner wall of the drying cylinder 2 is cleaned, preventing the resin from adhering to the inner wall of the drying cylinder 2, resulting in uneven stirring and drying, and also avoiding the waste of materials, through the setting of the spiral scraper 314, the scraper 314 can better scrape the water-based polyurethane adhered to the inner wall of the drying cylinder 2, thereby improving the efficiency of resin cleaning.
[0028] Further, the heating plate 308 is provided with three groups, through the setting of the three groups of heating plates 308, the three groups of heating plates 308 can cooperate with each other, further improving the drying efficiency, making the resin heated more uniformly, and ensuring the drying quality.
[0029] Working principle: in the use process, the feeding can be controlled through the valve of the feeding port 301, the discharging can be controlled through the valve of the discharging port 302 at the side of the drying cylinder 2, the fan 304 and the electric heating wire 305 provide the main heat source to generate hot air, the heating plate 308 assists heating to ensure that the water-based polyurethane is evenly heated, the transmission shaft 311 and the stirring blade 312 stir the water-based polyurethane to prevent precipitation accumulation, the scraper 314 is driven by the driving motor 310 to clean the water-based polyurethane adhered to the inner wall of the drying cylinder 2, in addition, the temperature sensor and the humidity sensor are distributed in the drying cylinder 2 for monitoring the real-time temperature and humidity and feeding back to the external control system, the external control system receives the sensor signal to automatically control the operation of each device to ensure that the drying process is accurately executed, the water-based polyurethane resin to be dried is conveyed to above the feeding port 301, the first valve of the feeding port 301 is slowly opened to control the feeding speed of the water-based polyurethane resin, so that the water-based polyurethane resin falls into the drying cylinder 2 uniformly, attention should be paid to avoid that the water-based polyurethane resin is accumulated in one place during the feeding process, the feeding speed can be appropriately adjusted according to the actual situation, after the water-based polyurethane resin enters the drying cylinder 2, it is constantly stirred under the action of the stirring blade 312, at the same time, the resin will be dried by the hot air of the fan 304 and the electric heating wire 305, the temperature sensor and the humidity sensor monitor the temperature and humidity changes in the shell in real time and feed the data to the external control system, the external control system automatically adjusts the power of the electric heating wire 305 and the heating plate 308, the rotating speed of the fan 304 and the like according to the set parameters to maintain a stable drying environment, when the set drying time is reached, the heating and stirring and the like are stopped, the valve of the discharging port 302 is opened, and the dried resin is discharged from the discharging port for collection, during the discharging process, the speed of the scraper 314 can be appropriately adjusted to ensure that the resin is smoothly discharged and does not remain on the inner wall surface of the drying cylinder 2, which greatly improves the quality of the polyurethane resin product.
[0030] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An environmentally friendly drying device for producing waterborne polyurethane resin, comprising a bracket (1), characterized in that: One end of the support (1) is fixedly connected with a drying cylinder (2), one end of the drying cylinder (2) is provided with a drying mechanism (3); The drying mechanism (3) comprises a feeding port (301), a discharging port (302), an air injection pipeline (303), a fan (304), an electric heating wire (305), a connecting pipeline (306), a ventilation opening (307), a heating plate (308), an outer shell (309), a driving motor (310) and a transmission shaft (311), one end of the drying cylinder (2) is fixedly connected with the feeding port (301), one side of the drying cylinder (2) is fixedly connected with the discharging port (302), the other end of the drying cylinder (2) is fixedly connected with the air injection pipeline (303), one side of the inner wall surface of the air injection pipeline (303) is fixedly connected with the fan (304), the other side of the inner wall surface of the air injection pipeline (303) is fixedly connected with the electric heating wire (305), one side of the air injection pipeline (303) is fixedly connected with the connecting pipeline (306), the other side of the drying cylinder (2) is fixedly connected with the ventilation opening (307), the inside of the drying cylinder (2) is fixedly connected with the heating plate (308), the other end of the drying cylinder (2) is fixedly connected with the outer shell (309), the inner wall of the outer shell (309) is fixedly connected with the driving motor (310), and the output end of the driving motor (310) is fixedly connected with the transmission shaft (311).
2. The drying equipment for producing environment-friendly waterborne polyurethane resin according to claim 1, characterized in that: The connecting pipeline (306) is fixedly connected with the drying cylinder (2), and the connecting pipeline (306) is provided as four groups.
3. The drying equipment for producing environment-friendly waterborne polyurethane resin according to claim 1, characterized in that: The transmission shaft (311) is connected with the bearing of the drying cylinder (2).
4. The drying equipment for producing environment-friendly waterborne polyurethane resin according to claim 1, characterized in that: One side of the transmission shaft (311) is fixedly connected with a stirring blade (312), and the other side of the transmission shaft (311) is fixedly connected with a connecting rod (313), and one side of the connecting rod (313) is fixedly connected with a scraper (314).
5. The drying equipment for producing environment-friendly waterborne polyurethane resin according to claim 4, characterized in that: The stirring blade (312) is provided as three groups, and the connecting rod (313) is provided as two groups.
6. The drying equipment for producing environment-friendly waterborne polyurethane resin according to claim 4, characterized in that: The scraper (314) is tightly attached to the inner wall of the drying cylinder (2), and the scraper (314) is in a spiral shape.
7. The drying equipment for producing environment-friendly waterborne polyurethane resin according to claim 4, characterized in that: The heating plate (308) is provided as three groups.