Safe preparation device for alcohol-soluble polyurethane ink binder

Abstract

The utility model relates to the technical field of ink binder preparation, and discloses a safe preparation device for an alcohol-soluble polyurethane ink binder, which comprises a tank body comprising an outer tank and an inner tank, the inner tank is arranged in the outer tank, a heating layer is formed between the inner tank and the outer tank, a heater and a heat transfer medium are arranged in the heating layer, a sealing cover is detachably arranged above the outer tank and the inner tank, and the sealing cover is connected with the outer tank and the inner tank. A main feeding hole and a safety auxiliary mechanism are arranged on the sealing cover, discharging mechanisms are arranged on the bottom surfaces of the outer tank and the inner tank, and an auxiliary feeding pipe and an inflating pipe are arranged on the side walls of the outer tank and the inner tank; the stirring mechanism is arranged in the inner tank and comprises a stirring rod and stirring blades, the stirring rod is rotationally connected to the lower portion of the sealing cover and is driven by a motor fixedly arranged on the sealing cover, the stirring blades are fixedly arranged on the side wall of the stirring rod and comprise main stirring blades and auxiliary stirring blades, and the main stirring blades and the auxiliary stirring blades are arranged alternately up and down. The stirring device has the advantages that the heat transfer medium is adopted for auxiliary heating, so that the stirring uniformity is improved, and the heating uniformity of products is improved.

Description

Technical Field

[0001] This utility model relates to the field of ink binder preparation technology, specifically to a safe preparation device for alcohol-soluble polyurethane ink binders. Background Technology

[0002] Alcohol-soluble polyurethane ink binders are ink binders that use polyurethane resin as the main film-forming substance and are soluble in alcohol solvents. They are typically made from isocyanates, polyols, etc., through polymerization reactions, and possess good solubility, film-forming properties, and flexibility. They dissolve and disperse rapidly and evenly in alcohol solvents, giving the ink suitable rheological and drying properties. Due to their excellent adhesion to various materials, as well as their abrasion resistance and chemical resistance, they are widely used in printing fields with high hygiene requirements, such as food packaging and pharmaceutical packaging.

[0003] In the production of alcohol-soluble polyurethane ink binders, traditional reaction vessels are commonly used equipment, but they have significant drawbacks. Reaction vessels are typically heated by a jacket, with heat transfer relying on convection and conduction. Due to the high viscosity of the material inside the vessel, the material flows slowly during the reaction process, with the portion near the heating jacket heating up quickly, while the central area of ​​the vessel heats up more slowly. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a safe preparation device for alcohol-soluble polyurethane ink binders, which employs a heat transfer medium for assisted heating to improve stirring uniformity and thus enhance the heating uniformity of the product.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a safe preparation device for alcohol-soluble polyurethane ink binder, comprising:

[0006] The tank body includes an outer tank and an inner tank. The inner tank is located inside the outer tank, and a heating layer is formed between its outer side wall and the inner side wall of the outer tank. A heater and a heat transfer medium are provided in the heating layer. A sealing cover is detachably provided on the top of the outer tank and the inner tank. The sealing cover is provided with a main feed port and a safety auxiliary mechanism. A discharge mechanism is provided on the bottom surface of the outer tank and the inner tank. A secondary feed pipe and an air filling pipe are provided on the side wall.

[0007] The stirring mechanism is located inside the inner tank and includes a stirring rod and stirring blades. The stirring rod is rotatably connected to the bottom of the sealing cover and is driven by a motor fixed on the sealing cover. The stirring blades are fixed on the side wall of the stirring rod and include a main stirring blade and an auxiliary stirring blade, which are arranged alternately up and down.

[0008] Furthermore, multiple heaters are equidistantly arranged around the outer wall of the inner tank, and the heat transfer medium is heat transfer oil.

[0009] Furthermore, the sealing cap includes an annular cap and a can lid. The annular cap is located above the heating layer and is fixedly connected to the upper wall of the outer can by several screws. An annular ring is provided above the annular cap, and the can lid is sealed and fastened to the outside of the annular ring.

[0010] Furthermore, the safety auxiliary mechanism includes a pressure gauge, a pressure valve, and an alarm.

[0011] Furthermore, the discharge mechanism includes discharge pipe one and discharge pipe two respectively located on the bottom surfaces of the outer tank and the inner tank. The lower end of discharge pipe two is sealed to discharge pipe one, and discharge control valve is fixedly installed on discharge pipe one.

[0012] Furthermore, the auxiliary feed pipes are provided in multiple locations and are installed through the side walls of the outer tank and the inner tank, and the auxiliary feed pipes are equipped with feed control valves.

[0013] Furthermore, the inflation tube is connected to an external inert gas supply device.

[0014] Furthermore, the main stirring blade is a propeller-shaped stirring blade, and the secondary stirring blade is an anchor-shaped stirring blade.

[0015] Compared with the prior art, the advantages of this utility model are as follows: In terms of heating, the device uses heat transfer oil as a heat transfer medium to fill the heating layer between the inner tank and the outer tank. Multiple heaters are equidistantly arranged around the outer wall of the inner tank to heat the heat transfer oil. The heat transfer oil can evenly transfer heat to the inner tank. Compared with direct heating, it avoids local overheating or overcooling, making the material in the inner tank more evenly heated, providing a stable temperature environment for the material reaction, which is conducive to improving product quality.

[0016] In terms of mixing, the propeller blades in the mixing mechanism can quickly stir the materials, generating axial flow and enabling rapid mixing; the anchor-type blades can adhere to the inner tank wall to prevent material adhesion and avoid incomplete mixing in certain areas. The main and auxiliary blades are arranged alternately, working together to stir the materials from different angles and in different ways, further improving the uniformity of mixing. This allows the materials to be mixed more thoroughly while being heated evenly, ultimately ensuring uniform heating of the product and improving its quality and performance. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is the front view of this utility model;

[0019] Figure 3 This is a top view of the present invention;

[0020] Figure 4 This is a side view of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the tank body of this utility model;

[0022] Figure 6 This is a schematic diagram of part of the stirring mechanism of this utility model.

[0023] As shown in the figure: 1. Outer tank; 2. Inner tank; 3. Heating layer; 4. Heater; 5. Main feed inlet; 6. Auxiliary feed pipe; 7. Air inlet pipe; 8. Stirring rod; 9. Motor; 10. Main stirring blade; 11. Auxiliary stirring blade; 12. Annular cover; 13. Tank cover; 14. Pressure gauge; 15. Pressure valve; 16. Alarm; 17. Discharge pipe one; 18. Discharge pipe two; 19. Discharge control valve; 20. Feed control valve. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] Combined with appendix Figure 5 A safe preparation device for alcohol-soluble polyurethane ink binder includes: a tank body, including an outer tank 1 and an inner tank 2. The inner tank 2 is disposed inside the outer tank 1, and a heating layer 3 is formed between its outer side wall and the inner side wall of the outer tank 1. The heating layer 3 is provided with heaters 4 and a heat transfer medium. Multiple heaters 4 are equidistantly arranged around the outer wall of the inner tank 2. The heat transfer medium is heat-conducting oil, which can make the inner tank 2 heat more evenly, thereby achieving uniform heating of the material.

[0026] Combined with appendix Figure 1 Appendix Figure 3 The outer tank 1 and the inner tank 2 are detachably equipped with sealing caps. The sealing caps include annular caps 12 and tank lids 13. The annular caps 12 are located above the heating layer 3 and are fixedly connected to the upper wall of the outer tank 1 by several screws. An annular ring is provided above the annular caps 12. The tank lids 13 are sealed and fastened to the outside of the annular rings, which facilitates the removal and installation of the sealing caps. The opening of the heating layer 3 and the tank body can also be controlled independently, which is flexible and convenient. In addition, it can also prevent material leakage and impurities from entering.

[0027] Combined with appendix Figure 1 Appendix Figure 3 The sealing cover is equipped with a main feed inlet 5 and a safety auxiliary mechanism. The safety auxiliary mechanism includes a pressure gauge 14, a pressure valve 15 and an alarm 16. The pressure gauge 14 can monitor the pressure of the inner tank 2 in real time, the pressure valve 15 can release pressure when the pressure is too high, and the alarm 16 can remind in time to ensure the safe operation of the device and avoid danger.

[0028] Combined with appendix Figure 2 Appendix Figure 5The outer tank 1 and the inner tank 2 are provided with a discharge mechanism on their bottom surfaces. The discharge mechanism includes a discharge pipe 17 and a discharge pipe 2 18 respectively provided on the bottom surfaces of the outer tank 1 and the inner tank 2. The lower end of the discharge pipe 2 18 is sealed to the discharge pipe 17. A discharge control valve 19 is fixedly provided on the discharge pipe 17. The sealed connection prevents material leakage. The discharge control valve 19 can flexibly adjust the discharge speed and amount.

[0029] Combined with appendix Figure 3 Appendix Figure 4 Appendix Figure 5 The outer tank 1 and the inner tank 2 are equipped with auxiliary feed pipes 6 and gas filling pipes 7 on their side walls. Multiple auxiliary feed pipes 6 are provided and penetrate the side walls of both the outer tank 1 and the inner tank 2. Each auxiliary feed pipe 6 is equipped with a feed control valve 20. Multiple auxiliary feed pipes 6 facilitate the simultaneous feeding of various materials, while the feed control valves 20 can individually control the feed rate of each material, improving preparation efficiency and accuracy. The gas filling pipes 7 are connected to an external inert gas supply device. Introducing inert gas allows air to be expelled from the inner tank 2, preventing material oxidation and creating a stable inert environment for the preparation process, thus ensuring product quality.

[0030] Combined with appendix Figure 1 Appendix Figure 6 The stirring mechanism, located inside the inner tank 2, includes a stirring rod 8 and stirring blades. The stirring rod 8 is rotatably connected to the bottom of the sealing cover and driven by a motor 9 fixed to the sealing cover. The stirring blades are fixed to the side wall of the stirring rod 8 and include a main stirring blade 10 and a secondary stirring blade 11, which are arranged alternately. The main stirring blade 10 is a propeller-type stirring blade, and the secondary stirring blade 11 is an anchor-type stirring blade. The propeller-type stirring blade can quickly stir the material and generate axial flow, while the anchor-type stirring blade can adhere to the wall of the inner tank 2 to prevent material adhesion. The combination of the two improves the stirring effect and uniformity.

[0031] The specific implementation method of this utility model is as follows: First, open the sealing cover, which consists of an annular sealing cover 12 and a can lid 13. Remove the screws on the annular sealing cover 12 and inject an appropriate amount of heat transfer medium into the heating layer 3.

[0032] Then, install the sealing cover, connect the device to an external power source, and add the required materials to the inner tank 2 through the main feed port 5 and multiple auxiliary feed pipes 6. The feed control valve 20 on the auxiliary feed pipes 6 can control the feed amount of each material separately.

[0033] Next, inert gas is introduced into the inner tank 2 through the air filling pipe 7 connected to an external inert gas supply device, and the air inside the inner tank 2 is discharged to prevent the material from undergoing oxidation.

[0034] Multiple heaters 4 in the heating layer 3 between the outer tank 1 and the inner tank 2 are activated to heat the inner tank 2 using heat transfer medium heat transfer oil, so that the material is heated evenly.

[0035] At the same time, the motor 9 on the sealing cover is turned on, driving the stirring rod 8 to rotate, which in turn drives the main stirring blade 10 and the auxiliary stirring blade 11 to stir the material. The propeller-shaped main stirring blade 10 stirs rapidly to generate axial flow, and the anchor-shaped auxiliary stirring blade 11 adheres to the inner wall of the tank 2 to prevent material from adhering and improve the uniformity of stirring.

[0036] During the stirring and heating process, the pressure in the inner tank 2 is monitored in real time by pressure gauge 14. If the pressure is too high, pressure valve 15 releases pressure and alarm 16 provides timely reminder.

[0037] Finally, after preparation is completed, open the discharge control valve 19 on discharge pipe 17, and the material is discharged through discharge pipe 2 18 and discharge pipe 17.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0039] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A safe preparation apparatus for alcohol-soluble polyurethane ink binder, characterized in that, The utility model relates to a kind of double-layered tank and its safety auxiliary mechanism, including: Tank body, including outer tank (1) and inner tank (2), the inner tank (2) is located in outer tank (1), and heating layer (3) is formed between its outer side wall and outer tank (1) inner side wall, heater (4) and heat transfer medium are arranged in the heating layer (3), detachably equipped with sealing cover on the outer tank (1) and inner tank (2) top, main feed inlet (5) and safety auxiliary mechanism are equipped on the sealing cover, discharge mechanism is equipped on the bottom surface of the outer tank (1) and inner tank (2), and vice feed pipe (6) and inflation pipe (7) are equipped on side wall; Stirring mechanism, is arranged in inner tank (2) inside, including stirring rod (8) and stirring blade, the stirring rod (8) rotationally connects and is arranged below sealing cover, and is driven by motor (9) fixedly arranged on sealing cover, the stirring blade is fixedly arranged on the side wall of stirring rod (8), including main stirring blade (10) and vice stirring blade (11), the main stirring blade (10) and vice stirring blade (11) are alternately arranged.

2. The alcohol-soluble polyurethane ink binder safe preparation device according to claim 1, characterized in that: The heater (4) is equidistantly provided around the outer wall of the inner tank (2), and the heat transfer medium is heat conducting oil.

3. The alcohol-soluble polyurethane ink binder safe preparation device according to claim 1, characterized in that: The sealing cover includes annular cover (12) and tank cover (13), the annular cover (12) is arranged above the heating layer (3), and is fixedly connected with the upper wall of the outer tank (1) by a plurality of screws, an annular ring is arranged above the annular cover (12), and the tank cover (13) is sealingly connected to the outer side of the annular ring.

4. The alcohol-soluble polyurethane ink binder safe type preparation device according to claim 1, characterized in that: The safety auxiliary mechanism includes a pressure gauge (14), a pressure valve (15) and an alarm (16).

5. The alcohol-soluble polyurethane ink binder safe type preparation device according to claim 1, characterized in that: The discharge mechanism includes discharge pipe one (17) and discharge pipe two (18) arranged on the bottom surface of the outer tank (1) and the inner tank (2) respectively, the lower end of the discharge pipe two (18) is sealingly connected with the discharge pipe one (17), and the discharge control valve (19) is fixedly arranged on the discharge pipe one (17).

6. The alcohol-soluble polyurethane ink binder safe type preparation device according to claim 1, characterized in that: The vice feed pipe (6) is provided with a plurality of and penetrates the side wall of the outer tank (1) and the inner tank (2), and the feed control valve (20) is arranged on the vice feed pipe (6).

7. The alcohol-soluble polyurethane ink binder safe type preparation device according to claim 1, characterized in that: The inflation pipe (7) is connected with an external inert gas supply device.

8. The alcohol-soluble polyurethane ink binder safe type preparation device according to claim 1, characterized in that: The main stirring blade (10) is a propeller stirring blade, and the vice stirring blade (11) is an anchor stirring blade.

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