Stirring assembly and fluorane color developing material production reaction kettle

Abstract

The utility model belongs to the technical field of chemical production, and particularly relates to a stirring assembly and a fluorane color developing material production reaction kettle, the stirring assembly comprises a kettle body, a gear motor, an annular gear ring, a main rotating shaft and a mounting plate, the annular gear ring is arranged on the inner side wall of the kettle body, and the top end of the main rotating shaft is in transmission connection with an output shaft of the gear motor; a V-shaped rotating rod is arranged at the bottom end of the main rotating shaft, the left end and the right end of the V-shaped rotating rod are rotationally connected with roller sets, each roller set is composed of a plurality of rollers, the bottoms of the rollers abut against the bottom wall of the kettle body, a mounting plate is fixed to the upper portion of the main rotating shaft, and auxiliary stirring mechanisms are arranged on the left side and the right side of the mounting plate. The auxiliary stirring mechanism comprises a first auxiliary rotating shaft and a second auxiliary rotating shaft, the first auxiliary rotating shaft is in transmission connection with the second auxiliary rotating shaft, and a gear meshed with the annular gear ring is arranged on the first auxiliary rotating shaft. According to the utility model, the material mixing uniformity can be improved, and solid particles deposited at the bottom of the kettle body can be stirred to promote the proceeding of chemical reaction.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, and specifically relates to a stirring component and a reaction kettle for producing fluorane color developing materials. Background Art

[0002] As a functional dye, thermosensitive colorants have been widely used in fax paper, thermosensitive recording paper, etc. Their main chemical structures include phthalones (including azaphthalones and triarylmethanes), fluoranes, fluorenes, phenothiazines, phenoxazines and xanthenes. Among them, fluorane functional pigments are the mainstream of thermosensitive colorants, which have the characteristics of stable structure, high coloring sensitivity and good preservation stability of colored images. By introducing different substituent groups on the amino group of fluorane, fluoranes with different colors and properties can be obtained. The chromatographic series can range from yellow to purple-red, especially the black variety with pure hue, which almost completely monopolizes all black colorant varieties.

[0003] At present, the preparation method of fluorane color formers is to use N-formyl-2-methyl-4-methoxydiphenylamine as a raw material, condense with dibenzoic acid derivatives under the catalytic condition of concentrated sulfuric acid, and then close the loop under alkaline conditions in the presence of an organic solvent to prepare the color former. However, when N-formyl-2-methyl-4-methoxydiphenylamine, dibenzoic acid derivatives and concentrated sulfuric acid are mixed, due to the high viscosity of concentrated sulfuric acid, uneven mixing will occur, especially the material far from the central stirring rod position is always in a static state, unable to form an effective circulation flow, resulting in the influence of material mixing, and when the solid-liquid is mixed, some solid particles that fail to dissolve in time will be deposited at the bottom of the reactor. If there are too many deposits, it will be unfavorable for the chemical reaction to proceed, affecting the product quality.

[0004] Therefore, improvements are urgently needed. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a stirring component and a reaction kettle for producing fluorane color-developing materials. Through the stirring component, the materials in the kettle body can be mixed and stirred, wherein the auxiliary stirring mechanism can enable the materials away from the center of the kettle body to form an effective circulation flow, thereby improving the uniformity of material mixing; and the roller group can stir the solid particles deposited at the bottom of the kettle body, thereby promoting the chemical reaction and ensuring product quality.

[0006] In the first aspect, an embodiment of the utility model provides a stirring assembly, including a kettle body, a reduction motor, an annular gear ring, a main rotating shaft and a mounting plate, wherein a feed port is arranged on the top of the kettle body, the bottom of the kettle body is funnel-shaped, and a discharge port is arranged at the bottom of the funnel-shaped structure, the reduction motor is arranged on the outside of the kettle body, the annular gear ring, the main rotating shaft and the mounting plate are all located in the kettle body, the annular gear ring is fixed on the inner side wall of the kettle body, and the inner side of the annular gear ring is provided with internal teeth, the main rotating shaft is arranged vertically, the top end of the main rotating shaft passes through the top wall of the kettle body and is transmission-connected to the output shaft of the reduction motor, a plurality of stirring rods are arranged on the main rotating shaft, the bottom end of the main rotating shaft is fixedly connected with a V-shaped rotating rod, and the V-shaped rotating rod matches the funnel-shaped structure at the bottom of the kettle body, the left and right ends of the V-shaped rotating rod are rotatably connected with roller groups, and the rollers The wheel group is composed of a plurality of rollers arranged at intervals, and an arc plate is fixedly connected between two adjacent rollers, the bottom of the roller abuts against the bottom wall of the kettle body, and the mounting plate is transversely fixed to the upper part of the main rotating shaft, and auxiliary stirring mechanisms are arranged on the left and right sides below the mounting plate, and the auxiliary stirring mechanism includes a first auxiliary rotating shaft and a second auxiliary rotating shaft, and the first auxiliary rotating shaft is located outside the second auxiliary rotating shaft, and the top ends of the first auxiliary rotating shaft and the second auxiliary rotating shaft are both rotatably connected to the bottom surface of the mounting plate, and the first auxiliary rotating shaft and the second auxiliary rotating shaft are connected through a transmission device, and the first auxiliary rotating shaft and the second auxiliary rotating shaft are both provided with spiral stirring blades, and the spiral stirring blades do not interfere with the stirring rod, and a gear is installed at a position opposite to the annular gear ring on the first auxiliary rotating shaft, and the gear is meshed with the inner teeth of the annular gear ring.

[0007] Optionally, a valve is provided at the discharge port of the kettle body.

[0008] Specifically, it facilitates the discharge of materials.

[0009] Optionally, the arc plate is located at the edge of the roller and matches the arc surface of the roller.

[0010] Specifically, the arc plate is not only used to connect several rollers into a whole, to improve the stirring effect on the solid particles deposited at the bottom of the kettle, to accelerate the dissolution of the solid particles and to promote the reaction, but also matches the arc surface of the roller and will not affect the normal rolling of the roller.

[0011] Optionally, the transmission device adopts a sprocket chain transmission structure.

[0012] Optionally, supporting legs are provided below the kettle body.

[0013] In a second aspect, an embodiment of the utility model provides a reaction kettle for producing fluorane-based color-developing materials, and the reaction kettle for producing fluorane-based color-developing materials includes the above-mentioned stirring assembly.

[0014] The utility model also includes other components that can enable a stirring component and a fluorane coloring material production reactor to be used normally, all of which are conventional technical means in the field. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the field, such as a reduction motor, etc.

[0015] The working principle of the utility model is as follows: N-formyl-2-methyl-4-methoxydiphenylamine, dibenzoic acid derivatives and concentrated sulfuric acid are added into a kettle body, a reduction motor is started, and the main rotating shaft is driven to rotate. The main rotating shaft drives the stirring rod and the mounting plate to rotate around the main rotating shaft. The stirring rod can stir the material in the center of the kettle body. During the rotation of the mounting plate, two auxiliary stirring mechanisms are driven to rotate around the main rotating shaft. At the same time, the first auxiliary rotating shaft of the auxiliary stirring mechanism rotates under the meshing action of the gear and the annular gear ring, and then drives the second auxiliary rotating shaft to rotate together, so as to stir the material at a position far away from the main rotating shaft and the stirring rod, so that the material forms an effective circulation flow and improves the uniformity of material mixing; when the main rotating shaft rotates, the V-shaped rotating rod at the bottom thereof also rotates together, and drives the roller groups at both ends to roll along the funnel-shaped bottom wall of the bottom of the kettle body, so as to stir the deposited solid particles and promote the progress of the chemical reaction.

[0016] The beneficial effect of the utility model is that the materials in the kettle body can be mixed and stirred through the stirring assembly, wherein the auxiliary stirring mechanism can enable the materials far away from the center of the kettle body to form an effective circulation flow, thereby improving the uniformity of material mixing; and the roller group can stir up the solid particles deposited at the bottom of the kettle body, thereby promoting the chemical reaction and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A schematic structural diagram of a stirring assembly provided in an embodiment of the utility model.

[0019] Figure 2 A schematic structural diagram of a roller group of a stirring assembly provided in an embodiment of the utility model.

[0020] In the figure: 1. kettle body, 2. reduction motor, 3. annular gear ring, 4. main shaft, 5. mounting plate, 6. feed port, 7. discharge port, 8. legs, 9. stirring rod, 10. V-shaped rotating rod, 11. roller group, 12. roller, 13. arc plate, 14. first auxiliary rotating shaft, 15. second auxiliary rotating shaft, 16. sprocket chain transmission structure, 17. spiral stirring impeller, 18. gear. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0022] Example

[0023] like Figure 1-2 As shown, the embodiment of the utility model provides a stirring assembly, including a kettle body 1, a reduction motor 2, an annular gear ring 3, a main rotating shaft 4 and a mounting plate 5. A feed port 6 is arranged on the top of the kettle body 1, and the bottom of the kettle body 1 is funnel-shaped, and a discharge port 7 is arranged at the bottom of the funnel-shaped structure. A valve is arranged at the discharge port 7 for discharging materials. A support leg 8 is arranged below the kettle body 1, and the reduction motor 2 is arranged outside the kettle body 1, and the annular gear ring 3, the main rotating shaft 4 and the mounting plate 5 are all located in the kettle body 1, and the annular gear ring 3 is fixed on the inner side wall of the kettle body 1, and the inner side of the annular gear ring 3 is provided with internal teeth. The main rotating shaft 4 is arranged vertically, and the top end of the main rotating shaft 4 passes through the top wall of the kettle body 1 and is drivingly connected to the output shaft of the reduction motor 2. A plurality of stirring rods 9 are arranged on the main rotating shaft 4, and a V-shaped rotating rod 10 is fixedly connected to the bottom end of the main rotating shaft 4, and the V-shaped rotating rod 10 matches the funnel-shaped structure at the bottom of the kettle body 1, and the left and right ends of the V-shaped rotating rod 10 are rotatably connected with rollers The roller group 11 is composed of a plurality of rollers 12 arranged at intervals, and an arc plate 13 is fixedly connected between two adjacent rollers 12, the bottom of the roller 12 abuts against the bottom wall of the kettle body 1, and the mounting plate 5 is transversely fixed to the upper part of the main rotating shaft 4, and auxiliary stirring mechanisms are arranged on the left and right sides below the mounting plate 5, and the auxiliary stirring mechanism includes a first auxiliary rotating shaft 14 and a second auxiliary rotating shaft 15, and the first auxiliary rotating shaft 14 is located outside the second auxiliary rotating shaft 15, and the top ends of the first auxiliary rotating shaft 14 and the second auxiliary rotating shaft 15 are both rotatably connected to the bottom surface of the mounting plate 5, and the first auxiliary rotating shaft 14 and the second auxiliary rotating shaft 15 are connected by a sprocket chain transmission structure 16, the first auxiliary rotating shaft 14 and the second auxiliary rotating shaft 15 are both provided with spiral stirring blades 17, and the spiral stirring blades 17 do not interfere with the stirring rod 9, and a gear 18 is installed at a position opposite to the annular gear ring 3 on the first auxiliary rotating shaft 14, and the gear 18 is meshed with the inner teeth of the annular gear ring 3.

[0024] In addition, the arc plate 13 is located at the edge of the roller 12 and matches the arc surface of the roller 12 .

[0025] It is understandable that the arc plate 13 is not only used to connect several rollers 12 into a whole, to improve the stirring effect on the solid particles deposited at the bottom of the kettle body 1, to accelerate the dissolution of the solid particles and promote the reaction, but also matches the arc surface of the roller 12 and will not affect the normal rolling of the roller 12.

[0026] The embodiment of the utility model further provides a reaction kettle for producing fluorane color-developing materials, and the reaction kettle for producing fluorane color-developing materials comprises the stirring assembly mentioned in the above embodiment.

[0027] The working principle of the utility model is as follows: N-formyl-2-methyl-4-methoxydiphenylamine, dibenzoic acid derivatives and concentrated sulfuric acid are added into the kettle body 1, and the reduction motor 2 is started to drive the main rotating shaft 4 to rotate. The main rotating shaft 4 drives the stirring rod 9 and the mounting plate 5 to rotate around the main rotating shaft 4. The stirring rod 9 can stir the material in the center of the kettle body 1. During the rotation of the mounting plate 5, the two auxiliary stirring mechanisms are driven to rotate around the main rotating shaft 4. At the same time, the first auxiliary rotating shaft 14 of the auxiliary stirring mechanism rotates under the meshing action of the gear 18 and the annular gear ring 3, and then drives the second auxiliary rotating shaft 15 to rotate together, so as to stir the material at a position far away from the main rotating shaft 4 and the stirring rod 9, so that the material forms an effective circulation flow and improves the uniformity of material mixing; when the main rotating shaft 4 rotates, the V-shaped rotating rod 10 at the bottom thereof also rotates together, and drives the roller groups 11 at both ends to roll along the funnel-shaped bottom wall of the bottom of the kettle body 1, so as to stir the deposited solid particles and promote the progress of the chemical reaction.

[0028] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A stirring assembly, comprising a kettle body, a reduction motor, an annular gear ring, a main rotating shaft and a mounting plate, Features: A feed port is arranged on the top of the kettle body, the bottom of the kettle body is funnel-shaped, and a discharge port is arranged at the bottom of the funnel-shaped structure, the reduction motor is arranged outside the kettle body, the annular gear ring, the main rotating shaft and the mounting plate are all located in the kettle body, the annular gear ring is fixed on the inner side wall of the kettle body, and the inner side of the annular gear ring is provided with internal teeth, the main rotating shaft is arranged vertically, the top end of the main rotating shaft passes through the top wall of the kettle body and is drivingly connected to the output shaft of the reduction motor, a plurality of stirring rods are arranged on the main rotating shaft, the bottom end of the main rotating shaft is fixedly connected with a V-shaped rotating rod, and the V-shaped rotating rod matches the funnel-shaped structure at the bottom of the kettle body, and the left and right ends of the V-shaped rotating rod are rotatably connected with roller groups, and the roller group consists of a plurality of rollers arranged at intervals. , and an arc plate is fixedly connected between two adjacent rollers, the bottom of the roller abuts against the bottom wall of the kettle body, the mounting plate is transversely fixed to the upper part of the main rotating shaft, and auxiliary stirring mechanisms are arranged on the left and right sides below the mounting plate, the auxiliary stirring mechanism includes a first auxiliary rotating shaft and a second auxiliary rotating shaft, and the first auxiliary rotating shaft is located outside the second auxiliary rotating shaft, the top ends of the first auxiliary rotating shaft and the second auxiliary rotating shaft are rotatably connected to the bottom surface of the mounting plate, and the first auxiliary rotating shaft and the second auxiliary rotating shaft are transmission-connected through a transmission device, the first auxiliary rotating shaft and the second auxiliary rotating shaft are both provided with spiral stirring blades, and a gear is installed at a position opposite to the annular gear ring on the first auxiliary rotating shaft, and the gear is meshed with the inner teeth of the annular gear ring.

2. The stirring assembly according to claim 1, Features: A valve is arranged at the discharge port of the kettle body.

3. The stirring assembly according to claim 2, Features: The arc plate is located at the edge of the roller and matches the arc surface of the roller.

4. The stirring assembly according to claim 3, Features: The transmission device adopts a sprocket chain transmission structure.

5. The stirring assembly according to claim 4, Features: Support legs are arranged below the kettle body.

6. A reaction kettle for producing fluorane color-developing materials, Features: The stirring assembly comprises the stirring assembly described in any one of claims 1 to 5.

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