A distillation kettle for producing a fluorescent whitening agent

Abstract

The utility model discloses a distillation kettle of production fluorescent whitening agent, including cauldron body, the upper cover is fixedly arranged on cauldron body, the rotary shaft is rotatably arranged in cauldron body, the motor is fixedly arranged on the upper cover, and the motor is connected with rotary shaft transmission, is provided with stirring subassembly on the rotary shaft, is used for stirring in cauldron body, the upper cover still is provided with the air outlet pipe, and the air outlet pipe is linked together with the inside of cauldron body, and the inner wall of cauldron body is provided with a plurality of convex part and recess, and the convex part and recess are alternately arranged, and still be provided with heating component on cauldron body for heating in cauldron body. In the utility model, when rotary shaft drives stirring subassembly to rotate, make the material flow in cauldron body, and the convex part can play certain blocking effect to the flow of material, make the material disorder in cauldron body, to be able to enhance the mixing effect of material, and the convex part and recess can increase the area of cauldron inner wall simultaneously, make the contact area of material and cauldron inner wall increase, improve heating effect.

Description

Technical Field

[0001] This utility model relates to the field of distillation kettle technology, and in particular to a distillation kettle for producing fluorescent whitening agents. Background Technology

[0002] Fluorescent whitening agents are fluorescent dyes, also known as white dyes, and are a general term for a class of compounds. Their characteristic is that they can excite incident light to produce fluorescence, giving the dyed material a sparkling effect similar to fluorite, making the material appear very white to the naked eye.

[0003] In the production of fluorescent whitening agents, intermediates need to be distilled to obtain purer intermediates. Distillation requires heating in a distillation vessel, whose heating element is typically located on the side wall. Therefore, during heating, the material near the outer edge of the vessel heats up faster than the material inside, resulting in uneven heating. To address this, a stirring device is usually installed inside the distillation vessel to ensure thorough mixing and uniform heating. However, current distillation vessel stirring devices are relatively simple, resulting in slow mixing speeds and hindering rapid and uniform heating, thus reducing the distillation rate of the product. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a distillation vessel for producing fluorescent whitening agents.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A distillation vessel for producing fluorescent whitening agents includes a vessel body, a top cover fixedly mounted on the vessel body, a rotating shaft rotatably mounted inside the vessel body, a motor fixedly mounted on the top cover, the motor being drivenly connected to the rotating shaft, a stirring assembly mounted on the rotating shaft for stirring the contents of the vessel body, a vent pipe mounted on the top cover communicating with the interior of the vessel body, multiple protrusions and recesses alternating on the inner wall of the vessel body, and a heating assembly mounted on the vessel body for heating the interior of the vessel body.

[0007] Preferably, both the protrusion and the recess are arc-shaped structures, and the horizontal cross-section of the combination of the protrusion and the recess is a wave-shaped structure.

[0008] Preferably, the stirring assembly includes an upper stirring blade, which is fixedly mounted on the rotating shaft and is inclined.

[0009] Preferably, the stirring assembly further includes a lower stirring blade, which is fixedly mounted on the rotating shaft and located below the upper stirring blade, and is vertically arranged.

[0010] Preferably, the lower stirring blade has multiple through holes to reduce the resistance of the lower stirring blade.

[0011] Preferably, a support frame is fixedly installed inside the vessel body, the support frame is located at the lower part of the vessel body, and the support frame is rotatably connected to the lower end of the rotating shaft.

[0012] Preferably, the heating assembly includes a heating tube, which has a spiral structure and is fixedly disposed on the outer wall of the vessel.

[0013] Preferably, the upper cover is provided with a pressure relief pipe, which is connected to the interior of the vessel body, and a pressure relief valve is provided on the pressure relief pipe.

[0014] Preferably, the outlet pipe is connected to a condensation assembly, the condensation assembly includes a sleeve, a condenser pipe is fixedly installed inside the sleeve, the outlet pipe is connected to one end of the condenser pipe, and the other end of the condenser pipe is connected to a collection box.

[0015] Preferably, the sleeve is connected to an inlet pipe and an outlet pipe for the flow of condensate inside the sleeve.

[0016] The beneficial effects of adopting the above technical solution are as follows:

[0017] 1. In this utility model, the inner wall of the vessel is uniformly provided with protrusions and depressions along the circumferential direction. Therefore, after the stirring component stirs the material in the vessel and causes the material to flow, the protrusions can play a certain role in hindering the material flow, thereby making the material flow disordered and improving the mixing effect of the material.

[0018] 2. In this utility model, the inner wall of the vessel is provided with protrusions and recesses, which can increase the area of ​​the inner wall of the vessel, increase the contact area between the material and the vessel, and improve the heating effect on the material.

[0019] 3. In this utility model, an upper stirring blade and a lower stirring blade are provided on the rotating shaft. The upper stirring blade and the lower stirring blade have different structures, and the stirring effect on the material is different during the rotation process, so that the material flows in different directions. The materials with different flow directions can be fully mixed in the reactor, thereby improving the mixing effect and making the material heat more evenly. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 This is a top view of the vessel body of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the rotating shaft of this utility model.

[0024] In the diagram: 1 is the vessel body, 2 is the top cover, 3 is the rotating shaft, 4 is the motor, 5 is the vent pipe, 6 is the protrusion, 7 is the recess, 8 is the upper stirring blade, 9 is the lower stirring blade, 10 is the through hole, 11 is the support frame, 12 is the heating tube, 13 is the pressure relief pipe, 14 is the sleeve, 15 is the condenser tube, 16 is the collection box, 17 is the water inlet pipe, 18 is the water outlet pipe, and 19 is the insulation layer. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figures 1 to 3As shown, a distillation vessel for producing fluorescent whitening agents includes a vessel body 1, which is a cylindrical structure with an open upper end. A top cover 2 is fixedly installed at the upper end of the vessel body 1 for sealing. The vessel body 1 and the top cover 2 are detachably fixed together by bolts. A rotating shaft 3 is vertically rotatably mounted inside the vessel body 1, coaxial with the vessel body 1. The upper end of the rotating shaft 3 is rotatably connected to the top cover 2. A motor 4 is fixedly mounted on the top cover 2, and the output shaft of the motor 4 is fixedly connected to the upper end of the rotating shaft 3. The motor 4 drives the rotating shaft 3 to rotate within the vessel body 1. The rotating shaft 3 is equipped with... A stirring assembly is used to stir the contents of the vessel body 1. A vent pipe 5 is also provided on the upper cover 2, which is connected to the interior of the vessel body 1. A valve is provided on the vent pipe 5 to control the opening and closing of the vent pipe 5. A feeding pipe is provided on the upper cover 2, which is equipped with a valve and is connected to the interior of the vessel body 1 for adding materials into the vessel body 1. The inner wall of the vessel body 1 is provided with multiple protrusions 6 and recesses 7, which are alternately arranged and uniformly arranged along the circumference. A heating assembly is also provided on the vessel body 1 for heating the interior of the vessel body 1.

[0029] In this invention, materials are added into the vessel body 1 and sealed with the top cover 2. The heating assembly heats the vessel body 1. Based on the different vaporization temperatures of various materials within the distillation vessel, when heated to a certain temperature, the corresponding materials vaporize and can be separated from the distillation vessel. During the heating process, materials near the side wall of the vessel body 1 heat up faster, while materials farther from the side wall heat up slower. To ensure uniform heating, the motor 4 drives the rotating shaft 3 and the stirring assembly to rotate within the vessel body 1, stirring the materials inside. During stirring, the materials within the vessel body 1 flow in one direction. During the flow process, the material collides with the protrusions 6 on the inner wall of the vessel body 1. Because the inner wall of the vessel body 1 has protrusions 6 and recesses 7, the radius from the center of the inner wall of the vessel body 1 is different at different points. Therefore, the linear velocity of the material is different at different points on the inner wall of the vessel body 1, which makes the flow of the material in the vessel body 1 more turbulent, thereby enhancing the mixing effect of the material and enabling the material to be heated evenly. At the same time, the protrusions 6 and recesses 7 on the inner wall of the vessel body 1 increase the area of ​​the inner wall of the vessel body 1, thereby increasing the contact area between the material and the inner wall of the vessel body 1, which in turn increases the heating rate of the material and improves the distillation efficiency.

[0030] It should be noted that, in order to increase the torque of the rotating shaft 3 and make the rotating shaft 3 rotate more smoothly, a reducer can be fixedly installed on the upper cover 2. The motor 4 is fixedly connected to the reducer, the output shaft of the motor 4 is fixedly connected to the input shaft of the reducer, and the output shaft of the reducer is fixedly connected to the upper end of the rotating shaft 3. After the motor 4 starts, the reducer can reduce the speed and increase the torque.

[0031] Furthermore, such as Figure 3As shown, both the protrusion 6 and the recess 7 are arc-shaped structures. The center of the protrusion 6 is closest to the center of the vessel body 1, while the center of the recess 7 is furthest from the center of the vessel body 1. The horizontal cross-section of the combination of the protrusion 6 and the recess 7 is a wave-shaped structure. The protrusion 6 and the recess 7 have a smooth transition and smooth surfaces. Therefore, when the material flows in the vessel body 1, the resistance to the inner wall of the vessel body 1 can be reduced, thereby reducing the rotational resistance of the motor 4 and achieving energy saving. At the same time, the smooth surfaces of the protrusion 6 and the recess 7 also facilitate the cleaning of the inside of the distillation vessel.

[0032] Furthermore, such as Figure 2 and Figure 4 As shown, the stirring assembly includes an upper stirring blade 8, which is fixedly mounted on the rotating shaft 3. Multiple upper stirring blades 8 are provided; in this embodiment, three upper stirring blades 8 are provided. The three upper stirring blades 8 are evenly arranged along the circumference and are inclined, meaning that the blade surface of the upper stirring blade 8 forms an angle with the vertical plane, with the angle being 30°~60°. In this embodiment, when the rotating shaft 3 rotates, it drives the upper stirring blades 8 to rotate, and the upper stirring blades 8 stir the material inside the vessel 1, causing the material to rotate in one direction. Simultaneously, this ensures that the material is evenly mixed within the vessel 1 and that the material is heated evenly.

[0033] Furthermore, such as Figure 2 and Figure 4 As shown, the stirring assembly also includes a lower stirring blade 9, which is fixedly mounted on the rotating shaft 3. The lower stirring blade 9 is located below the upper stirring blade 8 and is vertically arranged. There are multiple lower stirring blades 9, and in this embodiment, there are three. The three lower stirring blades 9 are evenly arranged along the circumference. In this embodiment, when the rotating shaft 3 rotates, it can drive the lower stirring blade 9 to rotate inside the vessel body 1. The lower stirring blade 9 stirs the material inside the vessel body 1, allowing the material to flow within the vessel body 1. Because the upper stirring blade 8 and the lower stirring blade 9 are set at different angles, the flow direction of the material during rotation is also different, thus causing the material to flow turbulently in the vessel body 1, enhancing the mixing effect of the material, and making the material heated evenly.

[0034] Furthermore, the lower stirring blade 9 is provided with multiple through holes 10 to reduce the resistance of the lower stirring blade 9, thereby reducing the rotational resistance of the motor 4 and further achieving energy saving.

[0035] Furthermore, a support frame 11 is fixedly installed inside the vessel body 1. The support frame 11 is located at the lower part of the vessel body 1 and has a cross-shaped structure. The outermost end of the support frame 11 is fixedly connected to the interior of the vessel body 1, and the middle part of the support frame 11 is rotatably connected to the lower end of the rotating shaft 3. In this embodiment, the turbulent flow of material inside the vessel body 1 can affect the stability of the rotating shaft 3, which may lead to bending, deformation, or breakage of the rotating shaft 3 over time. The upper end of the rotating shaft 3 is rotatably connected to the upper cover 2, and the lower end is rotatably connected to the support frame 11, which makes the rotating shaft 3 more stable inside the vessel body 1. The force borne by the rotating shaft 3 can be evenly distributed to both ends, thereby preventing damage to the rotating shaft 3.

[0036] Furthermore, the heating assembly includes a heating tube 12, which is an electric heating tube with a spiral structure. The heating tube 12 is wound around the outer wall of the vessel body 1 and abuts against the outer wall of the vessel body 1. When the heating tube 12 is energized, its temperature rises, thereby heating the material inside the vessel body 1.

[0037] It should be noted that, in order to prevent heat loss, an insulation layer 19 is provided on the outer wall of the vessel body 1, and the heating tube 12 is embedded in the insulation layer 19. The insulation layer 19 is made of rock wool.

[0038] Furthermore, a pressure relief pipe 13 is provided on the upper cover 2, which is connected to the interior of the vessel body 1. A pressure relief valve is provided on the pressure relief pipe 13. In this embodiment, the pressure relief valve is set with a pressure relief pressure. When the pressure inside the vessel body 1 exceeds the pressure set by the pressure relief valve, the gas generated inside the vessel body 1 can be discharged through the pressure relief pipe 13, thereby reducing the pressure inside the vessel body 1 and preventing the distillation vessel from exploding and causing damage.

[0039] It should be noted that a discharge pipe is provided at the bottom of the vessel body 1, and a valve is provided on the discharge pipe. During the distillation process, the valve on the discharge pipe is closed, and the gas generated in the vessel body 1 can be discharged from the gas outlet pipe 5. After the distillation is completed, the valve on the discharge pipe is opened to allow the residual waste in the vessel body 1 to be discharged from the discharge pipe.

[0040] Furthermore, the end of the exhaust pipe 5 furthest from the top cover 2 is connected to a condenser assembly. The condenser assembly is used to condense the distilled gas into a pure liquid for easy collection. The condenser assembly includes a sleeve 14, with an inlet pipe 17 and an outlet pipe 18 connected to the sleeve 14 for the flow of condensate within the sleeve 14. A condenser tube 15 is fixedly installed inside the sleeve 14. The exhaust pipe 5 is connected to one end of the condenser tube 15, and the other end of the condenser tube 15 is connected to a collection box 16. In this embodiment, condensate enters the sleeve 14 through the inlet pipe 17 and exits through the outlet pipe 18, completing the circulation of condensate. The high-temperature gas discharged from the exhaust pipe 5 enters the condenser tube 15, and the contact between the condensate and the condenser tube 15 lowers the temperature of the condenser tube 15, thereby condensing the high-temperature gas inside the condenser tube 15 into a liquid, which drips from the condenser tube 15 into the collection box 16 for collection.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A distillation vessel for producing fluorescent whitening agents, characterized in that, The vessel includes a vessel body (1), a top cover (2) fixedly mounted on the vessel body (1), a rotating shaft (3) rotatably mounted inside the vessel body (1), a motor (4) fixedly mounted on the top cover (2), the motor (4) being connected to the rotating shaft (3) for transmission, a stirring assembly mounted on the rotating shaft (3) for stirring inside the vessel body (1), an exhaust pipe (5) mounted on the top cover (2) for communicating with the interior of the vessel body (1), a plurality of protrusions (6) and recesses (7) mounted on the inner wall of the vessel body (1), the protrusions (6) and recesses (7) being alternately mounted, and a heating assembly mounted on the vessel body (1) for heating the interior of the vessel body (1).

2. The distillation vessel for producing fluorescent whitening agents according to claim 1, characterized in that, Both the protrusion (6) and the recess (7) are arc-shaped structures, and the horizontal cross-section of the combination of the protrusion (6) and the recess (7) is a wave-shaped structure.

3. The distillation vessel for producing fluorescent whitening agents according to claim 1, characterized in that, The stirring assembly includes an upper stirring blade (8), which is fixedly mounted on the rotating shaft (3) and is inclined.

4. The distillation vessel for producing fluorescent whitening agents according to claim 3, characterized in that, The stirring assembly also includes a lower stirring blade (9), which is fixedly mounted on the rotating shaft (3). The lower stirring blade (9) is located below the upper stirring blade (8) and is vertically arranged.

5. The distillation vessel for producing fluorescent whitening agents according to claim 4, characterized in that, The lower stirring blade (9) has multiple through holes (10) to reduce the resistance of the lower stirring blade (9).

6. The distillation vessel for producing fluorescent whitening agents according to claim 4, characterized in that, A support frame (11) is fixedly installed inside the vessel body (1). The support frame (11) is located at the lower part of the vessel body (1) and is rotatably connected to the lower end of the rotating shaft (3).

7. The distillation vessel for producing fluorescent whitening agents according to claim 1, characterized in that, The heating assembly includes a heating tube (12), which has a spiral structure and is fixedly mounted on the outer wall of the vessel body (1).

8. The distillation vessel for producing fluorescent whitening agents according to claim 1, characterized in that, The upper cover (2) is provided with a pressure relief pipe (13), which is connected to the interior of the vessel body (1), and a pressure relief valve is provided on the pressure relief pipe (13).

9. A distillation vessel for producing fluorescent whitening agents according to claim 1, characterized in that, The outlet pipe (5) is connected to a condenser assembly, which includes a sleeve (14). A condenser pipe (15) is fixedly installed inside the sleeve (14). The outlet pipe (5) is connected to one end of the condenser pipe (15), and the other end of the condenser pipe (15) is connected to a collection box (16).

10. A distillation vessel for producing fluorescent whitening agents according to claim 9, characterized in that, The sleeve (14) is connected to an inlet pipe (17) and an outlet pipe (18) for the flow of condensate inside the sleeve (14).

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