An energy-saving NMP reactor

Abstract

The utility model relates to the technical field of chemical production, and in particular to an energy-saving NMP reactor. It comprises a reactor body, a partition is installed on the reactor body, a heating assembly for heating the reaction raw materials is installed inside the reactor body, and a stirring assembly for uniformly heating the reaction raw materials is installed inside the reactor body; the heating assembly comprises a first heat conducting plate, the first heat conducting plate is installed on the inner wall of the reactor body, and a second heat conducting plate is installed on the first heat conducting plate. The utility model is provided with a heating assembly, and when the reaction raw materials are heated, the bottom, the outside and the inside of the reaction raw materials are heated simultaneously by the first heating tube, the second heating tube and the third heating tube, thereby increasing the heating area of ​​the reaction raw materials, so that the reaction raw materials can be fully heated, and the heating effect of the reaction raw materials is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical production, and particularly relates to an energy-saving NMP reactor. Background Art

[0002] The chemical name of NMP is N-methylpyrrolidone (NMP). N-methylpyrrolidone (NMP) is a high-boiling point, environmentally friendly and excellent solvent with low viscosity, chemical stability, good resistance and thermal stability, high polarity, low volatility, and infinite miscibility with water and many organic solvents. The market application areas of N-methylpyrrolidone are mainly concentrated in lithium batteries, circuit boards, insulation materials, petrochemicals, medicines, pesticides, cleaning, polymers and other industries.

[0003] After searching, in the prior art, Chinese patent application number: CN202022023123.0 discloses an energy-saving NMP reactor, including a reactor body, a drive motor, and a rotating spindle, wherein the drive motor is installed on the top of the reactor body, and the rotating spindle is arranged at the output end of the drive motor. A partition and a heat conducting plate are arranged in the reactor body, and the partition and the heat conducting plate divide the reactor body into a preheating chamber, a reaction chamber, and a heating chamber from top to bottom in sequence. Two symmetrical feed coils are arranged in the preheating chamber, and the upper ports of the two feed coils are respectively connected with a GBL raw material feed pipe and a methylamine feed pipe, and the lower port of the feed coil is connected with a mixing tank through a discharge pipe, and the rotating spindle penetrates the mixing tank and is symmetrically provided with U-shaped stirring wheels on both sides of the downward extension end. The utility model overcomes the shortcomings of the prior art, has a reasonable design, can discharge impurities in the reaction product through nitrogen, and methylamine is recycled after purification and filtration, which greatly improves resource utilization.

[0004] However, the device still has the following defects:

[0005] When the device heats the reaction raw materials, the reaction raw materials near the bottom of the tank body heat up quickly, while the reaction raw materials above the tank body that are not in contact with the heat conduction plate heat up slowly, resulting in the reaction raw materials not being fully heated, thereby affecting the heating effect of the reaction raw materials. Utility Model Content

[0006] The utility model aims to provide an energy-saving NMP reactor, which can effectively heat the bottom, outside and inside of the reaction raw materials through the heating components, thereby increasing the heating area of ​​the reaction raw materials, allowing the reaction raw materials to be fully heated, and improving the heating effect of the reaction raw materials, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the utility model provides the following technical solutions: an energy-saving NMP reactor, comprising a reactor body, a baffle installed on the reactor body, a heating component for heating the reaction raw materials installed inside the reactor body, and a stirring component for uniformly heating the reaction raw materials installed inside the reactor body;

[0008] The heating assembly includes a first heat conducting plate, which is installed on the inner wall of a reactor body; a second heat conducting plate is installed on the first heat conducting plate; an end of the second heat conducting plate away from the first heat conducting plate is installed on a partition; a first heating cavity is formed between the first heat conducting plate and the bottom of the reactor body; a first heating tube is installed in the first heating cavity; the second heat conducting plate is in a circular ring structure; a second heating cavity is formed between the second heat conducting plate, the side wall of the reactor body and the first heat conducting plate; a second heating tube is installed in the second heating cavity; and the second heating tube is wound around the side wall of the second heat conducting plate.

[0009] Furthermore, a stirring chamber is formed between the second heat conducting plate, the partition plate and the first heat conducting plate, a heat conducting pipe is installed in the stirring chamber, and the heat conducting pipe is installed on the first heat conducting plate.

[0010] Furthermore, a third heating chamber is provided in the heat-conducting tube, and a third heating tube is installed in the third heating chamber.

[0011] Furthermore, the stirring assembly includes a rotating main shaft, which is rotatably connected to the partition plate. A mounting plate is installed on the rotating main shaft, and the mounting plate is located in the stirring chamber.

[0012] Furthermore, two groups of stirring rods are rotatably connected to the bottom of the mounting plate, and multiple groups of stirring blades are installed on the two groups of stirring rods. The multiple groups of stirring blades are equidistantly arranged in a ring with the stirring rod as the center.

[0013] Furthermore, a rotating rod is installed at one end of the two groups of stirring rods, the two groups of rotating rods pass through the mounting plate, and a first gear is installed at one end of the two groups of rotating rods away from the stirring rods.

[0014] Furthermore, a second gear is rotatably connected to the rotating main shaft, two groups of connecting rods are installed on the second gear, one end of the two groups of connecting rods are installed on the partition, and the second gear is meshed with the two groups of first gears.

[0015] The beneficial effects of the utility model are:

[0016] The utility model adopts the heating component setting, when heating the reaction raw materials, the bottom, the outside and the inside of the reaction raw materials are heated simultaneously by the first heating tube, the second heating tube and the third heating tube, thereby increasing the heating area of ​​the reaction raw materials, allowing the reaction raw materials to be fully heated, and improving the heating effect of the reaction raw materials.

[0017] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure according to an embodiment of the utility model is shown;

[0020] Figure 2 A schematic diagram of the heat conduction pipe structure according to an embodiment of the utility model is shown;

[0021] Figure 3 The utility model is shown according to the embodiment of the present invention Figure 1 Enlarged structural diagram of point A in the middle

[0022] Figure 4 A schematic diagram of the second gear structure according to an embodiment of the utility model is shown.

[0023] In the figure: 110, reactor body; 120, partition; 210, first heat conduction plate; 211, first heating chamber; 212, first heating tube; 220, second heat conduction plate; 221, second heating chamber; 222, second heating tube; 230, heat conduction tube; 231, third heating chamber; 232, third heating tube; 240, stirring chamber; 310, rotating spindle; 320, mounting plate; 330, stirring rod; 331, rotating rod; 332, first gear; 340, stirring blade; 350, second gear; 360, connecting rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4 The utility model provides a technical solution: an energy-saving NMP reactor. It includes a reactor body 110, a partition 120 is installed on the reactor body 110, a heating component for heating the reaction raw materials is installed inside the reactor body 110, and a stirring component for uniformly heating the reaction raw materials is installed inside the reactor body 110;

[0026] The heating assembly includes a first heat conducting plate 210, which is installed on the inner wall of the reactor body 110, a second heat conducting plate 220 is installed on the first heat conducting plate 210, and one end of the second heat conducting plate 220 away from the first heat conducting plate 210 is installed on the partition 120, a first heating chamber 211 is formed between the first heat conducting plate 210 and the bottom of the reactor body 110, a first heating tube 212 is installed in the first heating chamber 211, the second heat conducting plate 220 is in a circular ring structure, a second heating chamber 221 is formed between the second heat conducting plate 220, the side wall of the reactor body 110 and the first heat conducting plate 210, a second heating tube 222 is installed in the second heating chamber 221, and the second heating tube 222 is wound around the side wall of the second heat conducting plate 220. A first heating tube 212 is provided to heat the first heating chamber 211 and the first heat conducting plate 210, so that the heat passes through the first heat conducting plate 210 to heat the bottom of the reaction material in the reactor body 110. A second heating tube 222 is provided to heat the second heating chamber 221 and the second heat conducting plate 220, so that the heat passes through the second heat conducting plate 220 to heat the outside of the reactant, thereby increasing the heating area with the reaction material and improving the heating effect of the reaction material.

[0027] A stirring chamber 240 is formed between the second heat conducting plate 220, the partition plate 120 and the first heat conducting plate 210, and a heat conducting pipe 230 is installed in the stirring chamber 240, and the heat conducting pipe 230 is installed on the first heat conducting plate 210. A third heating chamber 231 is provided in the heat conducting pipe 230, and a third heating pipe 232 is installed in the third heating chamber 231. The third heating pipe 232 is provided so that the third heating pipe 232 heats the third heating chamber 231 and the heat conducting pipe 230, so that the heat conducting pipe 230 heats the inside of the reaction raw material, so that the inside and outside of the reaction raw material are heated at the same time, thereby increasing the heating area of ​​the reaction raw material, improving the heating efficiency, and making the heating of the reaction raw material more uniform.

[0028] The stirring assembly includes a rotating main shaft 310, which is rotatably connected to the partition 120, and a mounting plate 320 is installed on the rotating main shaft 310, and the mounting plate 320 is located in the stirring chamber 240. Two groups of stirring rods 330 are rotatably connected to the bottom of the mounting plate 320, and multiple groups of stirring blades 340 are installed on the two groups of stirring rods 330, and the multiple groups of stirring blades 340 are arranged in an annular manner with the stirring rod 330 as the center. A rotating rod 331 is installed at one end of the two groups of stirring rods 330, and the two groups of rotating rods 331 pass through the mounting plate 320, and the first gear 332 is installed at one end of the two groups of rotating rods 331 away from the stirring rod 330. The rotating main shaft 310 is rotatably connected with a second gear 350, and two groups of connecting rods 360 are installed on the second gear 350. One end of the two groups of connecting rods 360 are installed on the partition 120, and the second gear 350 is meshed with the two groups of first gears 332. When stirring the reaction raw materials, the rotating main shaft 310 drives the mounting plate 320 to rotate, so that the mounting plate 320 drives the stirring rod 330 and the rotating rod 331 to rotate. At the same time, during the rotation of the rotating main shaft 310, the first gear 332 and the second gear 350 are meshed, so that the first gear 332 moves on the second gear 350, thereby driving the stirring rod 330 to rotate, so that the stirring rod 330 drives the stirring blade 340 to stir the reaction raw materials. The rotating main shaft 310 is driven by an external motor to rotate the rotating main shaft 310. At the same time, the feeding mechanism on the reactor body 110 is the same as the reactor feeding mechanism in the prior art (Chinese patent document application number: CN202022023123.0, disclosing an energy-saving NMP reactor), and will not be described here.

[0029] It should be noted that this application is based on the improvement of the interior of the reactor body in the prior art (Chinese patent document application number: CN202022023123.0, disclosing an energy-saving NMP reactor). When used, it needs to be used in conjunction with the NMP reactor of the prior art.

[0030] Specifically, the internal electrical connection structures of the first heating tube 212, the second heating tube 222 and the third heating tube 232 are well known to those skilled in the art and will not be described in detail herein. The electrical components in this application are all connected to an external power source when in use.

[0031] The circuits, electrical components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to the software.

[0032] The control method of the present application document is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field, which is common knowledge in this field. In addition, the present application document is mainly used to protect mechanical devices, so the present application document will no longer explain the control method and circuit connection in detail.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An energy-saving NMP reactor, characterized in that: The reactor body (110) comprises a reactor main body (110), a partition (120) is installed on the reactor main body (110), a heating component for heating the reaction raw materials is installed inside the reactor main body (110), and a stirring component for uniformly heating the reaction raw materials is installed inside the reactor main body (110); The heating assembly comprises a first heat conducting plate (210), wherein the first heat conducting plate (210) is mounted on the inner wall of a reactor body (110), a second heat conducting plate (220) is mounted on the first heat conducting plate (210), an end of the second heat conducting plate (220) away from the first heat conducting plate (210) is mounted on a partition (120), a first heating chamber (211) is formed between the first heat conducting plate (210) and the bottom of the reactor body (110), a first heating tube (212) is mounted in the first heating chamber (211), the second heat conducting plate (220) is in a circular ring structure, a second heating chamber (221) is formed between the second heat conducting plate (220), the side wall of the reactor body (110) and the first heat conducting plate (210), a second heating tube (222) is mounted in the second heating chamber (221), and the second heating tube (222) is wound around the side wall of the second heat conducting plate (220).

2. A kind of energy-saving NMP reactor according to claim 1, it is characterized in that: A stirring chamber (240) is formed between the second heat conducting plate (220), the partition plate (120) and the first heat conducting plate (210), a heat conducting pipe (230) is installed in the stirring chamber (240), and the heat conducting pipe (230) is installed on the first heat conducting plate (210).

3. A kind of energy-saving NMP reactor according to claim 2, it is characterized in that: A third heating chamber (231) is provided in the heat conducting tube (230), and a third heating tube (232) is installed in the third heating chamber (231).

4. A kind of energy-saving NMP reactor according to claim 3, it is characterized in that: The stirring assembly comprises a rotating main shaft (310), the rotating main shaft (310) is rotatably connected to the partition (120), a mounting plate (320) is mounted on the rotating main shaft (310), and the mounting plate (320) is located in the stirring chamber (240).

5. A kind of energy-saving NMP reactor according to claim 4, it is characterized in that: Two groups of stirring rods (330) are rotatably connected to the bottom of the mounting plate (320), and multiple groups of stirring blades (340) are installed on the two groups of stirring rods (330). The multiple groups of stirring blades (340) are arranged in a ring with equal distances around the stirring rod (330).

6. A kind of energy-saving NMP reactor according to claim 5, it is characterized in that: A rotating rod (331) is installed at one end of the two groups of stirring rods (330), and the two groups of rotating rods (331) pass through the mounting plate (320). A first gear (332) is installed at one end of the two groups of rotating rods (331) away from the stirring rods (330).

7. A kind of energy-saving NMP reactor according to claim 6, it is characterized in that: A second gear (350) is rotatably connected to the rotating main shaft (310), two groups of connecting rods (360) are installed on the second gear (350), one end of the two groups of connecting rods (360) are installed on the partition (120), and the second gear (350) is meshed with the two groups of first gears (332).

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