Special reaction kettle for research and development of fatty amine polyoxyethylene ether

Abstract

The utility model relates to the technical field of fatty amine polyoxyethylene ether production, in particular to a special reaction kettle for research and development of fatty amine polyoxyethylene ether, which comprises a reaction kettle tank body, a stirring mechanism and a material conveying mechanism, the stirring mechanism comprises a stirring motor, a stirring shaft and stirring blades, a first material conveying channel is arranged in the stirring shaft, and a second material conveying channel is arranged in the stirring shaft. A second material conveying channel is arranged in the stirring blade, the material conveying mechanism comprises a nitrogen inlet pipe, an epoxy material feeding pipe, a main feeding pipe and an automatic valve, the main feeding pipe is connected with the first material conveying channel through a pipeline, an atomizing nozzle is fixedly arranged at the end, away from the stirring shaft, of the stirring blade, and the atomizing nozzle is connected with the second material conveying channel through a pipeline. According to the utility model, an epoxy material feeding pipeline and a nitrogen pipeline are arranged in the same line and are released from the tail ends of the stirring blades by utilizing the pipeline, so that the epoxy material and an initiator are fully mixed, and meanwhile, residual materials in the pipeline can be reversely blown back into a reaction kettle by utilizing nitrogen.

Description

Technical Field

[0001] The utility model relates to the technical field of fatty amine polyoxyethylene ether production, in particular to a special reaction kettle for the research and development of fatty amine polyoxyethylene ether. Background Art

[0002] At present, the reaction mode used by the small ethoxylation reactors on the market is stirring reaction, and the epoxy is added into the reactor from the bottom through a pipe, and the stirring blades are used to mix with the materials and then react. However, due to the design of the equipment, if the raw material viscosity is high or the water content is high, the reaction is difficult, and epoxy self-polymers are likely to appear at the bottom, affecting the quality of the product. Utility Model Content

[0003] The utility model provides a special reaction kettle for the research and development of fatty amine polyoxyethylene ether in order to solve the problems of the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a special reactor for the research and development of fatty amine polyoxyethylene ether, comprising: a reactor tank body, a stirring mechanism and a feeding mechanism, the stirring mechanism comprising a stirring motor, a stirring shaft and a stirring blade, the stirring motor is fixedly arranged at the upper end of the reactor tank body, the output end of the stirring motor is downward and is connected to the stirring shaft in a transmission manner, the stirring blade is fixedly arranged on the stirring shaft, a first feeding channel is arranged inside the stirring shaft, a second feeding channel is arranged inside the stirring blade, the first feeding channel and the second feeding channel are connected by pipeline, the feeding mechanism comprises a nitrogen inlet pipe, an epoxy material feed pipe, a main feed pipe and an automatic valve, the nitrogen inlet pipe and the epoxy material feed pipe are connected to the main feed pipe by a three-way joint, the automatic valve is arranged on the main feed pipe, the main feed pipe is connected to the first feeding channel pipeline, an atomizing nozzle is fixedly arranged on the end of the stirring blade away from the stirring shaft, and the atomizing nozzle is connected to the second feeding channel pipeline.

[0005] As a further improvement, a stirring scraper is fixedly arranged on the stirring shaft, and the stirring scraper includes a stirring rod and a scraper. The stirring rod is fixedly arranged on the stirring shaft, and the scraper is fixedly arranged on the stirring rod and abuts against the inner wall of the reactor tank.

[0006] As a further improvement, the reactor tank body is made of double-layer tempered glass, and a metal explosion-proof net is arranged on the outside of the double-layer tempered glass.

[0007] As a further improvement, a temperature regulating assembly is arranged on the outside of the reactor tank body, and the temperature regulating assembly includes a temperature regulating tube and a thermal insulation layer plate. The temperature regulating tube is arranged around the outside of the reactor tank body, and the thermal insulation layer plate is sleeved on the outside of the temperature regulating tube and fixed to the reactor tank body.

[0008] As a further improvement, the stirring blades and the stirring scrapers are provided in multiple groups.

[0009] As a further improvement, a sensor assembly is arranged on the outside of the reactor tank, and the sensor assembly includes a pressure sensor and a temperature sensor.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model transfers the dripping method of epoxy from the bottom to the blades by modifying the stirring blades in the reactor. The epoxy enters the stirring blades through the epoxy material feed pipe and is atomized through the atomizing nozzle. In this way, the epoxy can be added in a rotating manner, and the contact area between the epoxy and the material is increased in disguise, the reaction efficiency of the production is improved, and the generation of epoxy self-polymers at the bottom is reduced. At the same time, the dripping port at the stirring blade can also play the role of nitrogen bubbling in the raw material dehydration link, and the raw material dehydration is more sufficient by relying on nitrogen bubbling;

[0012] 2. The nitrogen inlet pipe and the epoxy material feed pipe of the utility model are collected in the main feed pipe, and the first feed channel and the second feed channel are used to release them from the end of the stirring blade, which not only ensures the full mixing of the epoxy raw material and the initiator, but also uses nitrogen to blow the remaining materials in the pipeline back into the reactor;

[0013] 3. The utility model scrapes the inner wall of the reactor by a scraper to prevent the material from adhering to the inner wall of the reactor and causing difficulty in cleaning;

[0014] 4. According to actual production needs, the utility model can heat up or cool down the reactor through the temperature adjustment component to improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the stirring mechanism of the utility model;

[0017] Figure 3 It is a cross-sectional view of the stirring mechanism of the utility model;

[0018] Figure 4 For this utility model Figure 3 A magnified view of the part A in the middle;

[0019] Figure 5 It is a structural schematic diagram of another embodiment of the utility model.

[0020] In the figure, 1, reactor tank body; 2, stirring mechanism; 21, stirring motor; 22, stirring shaft; 221, first feeding channel; 23, stirring blade; 231, second feeding channel; 232, atomizing nozzle; 323, feeding mechanism; 31, nitrogen inlet pipe; 32, epoxy material feed pipe; 33, main feed pipe; 34, automatic valve; 4, stirring scraper; 41, stirring rod; 42, scraper; 5, temperature regulating assembly; 51, temperature regulating tube; 52, insulation layer; 6, sensor assembly; 61, pressure sensor; 62, temperature sensor. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is combined with the embodiments and attached Figures 1 to 5 , the technical solution of the utility model is further elaborated.

[0024] Example 1

[0025] A special reactor for the research and development of fatty amine polyoxyethylene ether, comprising: a reactor tank body 1, a stirring mechanism 2 and a feeding mechanism 3, wherein the stirring mechanism 2 comprises a stirring motor 21, a stirring shaft 22 and a stirring blade 23, wherein the stirring motor 21 is fixedly arranged at the upper end of the reactor tank body 1, the output end of the stirring motor 21 faces downward and is transmission-connected to the stirring shaft 22, the stirring blade 23 is fixedly arranged on the stirring shaft 22, a first feeding channel 221 is arranged inside the stirring shaft 22, a second feeding channel 231 is arranged inside the stirring blade 23, and the first feeding channel 221 and The second feed channel 231 is connected by a pipeline, and the feed mechanism 3 includes a nitrogen inlet pipe 31, an epoxy material feed pipe 32, a main feed pipe 33 and an automatic valve 34. The nitrogen inlet pipe 31 and the epoxy material feed pipe 32 are connected to the main feed pipe 33 by a three-way joint. The automatic valve 34 is arranged on the main feed pipe 33, and the main feed pipe 33 is connected to the first feed channel 221 by a pipeline. An atomizing nozzle 232 is fixedly arranged at one end of the stirring blade 23 away from the stirring shaft 22, and the atomizing nozzle 232 is connected to the second feed channel 231 by a pipeline.

[0026] like Figures 1 to 5 As shown, the utility model transfers the dripping method of epoxy from the bottom to the blades by modifying the stirring blades in the reactor. The epoxy enters the stirring blades 23 through the epoxy material feed pipe 32 and is atomized through the atomizing nozzle 232. In this way, not only can the epoxy be added in a rotational manner, but also the contact area between the epoxy and the material is increased in disguise, the reaction efficiency of the production is improved, and the generation of epoxy self-polymers at the bottom is reduced. At the same time, the dripping port at the stirring blade 23 can also play the role of nitrogen bubbling in the raw material dehydration link, and the raw material dehydration is more sufficient by relying on nitrogen bubbling.

[0027] The nitrogen inlet pipe 31 and the epoxy material feed pipe 32 are collected in the main feed pipe 33, and are released from the end of the stirring blade 23 by the first feed channel 221 and the second feed channel 231, which not only ensures the full mixing of the epoxy raw material and the initiator, but also utilizes nitrogen to blow the remaining material in the pipe back into the reactor.

[0028] As a further preferred embodiment, a stirring scraper 4 is fixedly provided on the stirring shaft 22, and the stirring scraper 4 includes a stirring rod 41 and a scraper 42. The stirring rod 41 is fixedly provided on the stirring shaft 22, and the scraper 42 is fixedly provided on the stirring rod 41 and abuts against the inner wall of the reactor tank body 1. The inner wall of the reactor is scraped by the scraper 42 to prevent the material from adhering to the inner wall of the reactor and causing difficulty in cleaning.

[0029] As a further preferred embodiment, the material of the reactor tank body 1 is double-layer tempered glass, and a metal explosion-proof net is arranged on the outside of the double-layer tempered glass. It adopts an open double-layer tempered glass material with a metal grid accessory on the outside. While taking protective measures, it also relies on the transparent characteristics of the tempered glass to intuitively see the reaction of the materials in the reactor.

[0030] As a further preferred embodiment, a temperature regulating component 5 is arranged on the outside of the reactor tank body 1, and the temperature regulating component 5 includes a temperature regulating tube 51 and an insulation layer plate 52. The temperature regulating tube 51 is arranged around the outside of the reactor tank body 1, and the insulation layer plate 52 is sleeved on the outside of the temperature regulating tube 51 and fixed to the reactor tank body 1. According to actual production needs, the reactor can be heated or cooled by the temperature regulating component 5 to improve production efficiency.

[0031] As a further preferred embodiment, the stirring blades 23 and the stirring scrapers 4 are provided in multiple groups, which can better achieve the stirring and dehydration of the material and the effectiveness of the reaction.

[0032] As a further preferred embodiment, a sensor assembly 6 is arranged on the outside of the reactor tank body 1. The sensor assembly 6 includes a pressure sensor 61 and a temperature sensor 62. The environmental parameters inside the reactor can be intuitively observed through the sensor assembly 6.

[0033] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A special reactor for the research and development of fatty amine polyoxyethylene ether, comprising: A reaction kettle tank body (1), a stirring mechanism (2) and a feeding mechanism (3), wherein the stirring mechanism (2) comprises a stirring motor (21), a stirring shaft (22) and a stirring blade (23), wherein the stirring motor (21) is fixedly arranged at the upper end of the reaction kettle tank body (1), the output end of the stirring motor (21) faces downward and is transmission-connected to the stirring shaft (22), and the stirring blade (23) is fixedly arranged on the stirring shaft (22), and is characterized in that a first feeding channel (221) is arranged inside the stirring shaft (22), a second feeding channel (231) is arranged inside the stirring blade (23), and the first feeding channel (221) and the second feeding channel (231) are connected to each other. The feeding mechanism (3) comprises a nitrogen inlet pipe (31), an epoxy material feed pipe (32), a main feed pipe (33) and an automatic valve (34); the nitrogen inlet pipe (31) and the epoxy material feed pipe (32) are connected to the main feed pipe (33) through a three-way joint; the automatic valve (34) is arranged on the main feed pipe (33); the main feed pipe (33) is connected to the first feeding channel (221) through a pipeline; an atomizing nozzle (232) is fixedly arranged at one end of the stirring blade (23) away from the stirring shaft (22); the atomizing nozzle (232) is connected to the second feeding channel (231) through a pipeline.

2. A special reaction kettle for the research and development of fatty amine polyoxyethylene ether according to claim 1, characterized in that: A stirring scraper (4) is fixedly arranged on the stirring shaft (22), and the stirring scraper (4) comprises a stirring rod (41) and a scraper (42). The stirring rod (41) is fixedly arranged on the stirring shaft (22), and the scraper (42) is fixedly arranged on the stirring rod (41) and abuts against the inner wall of the reactor tank body (1).

3. A special reaction kettle for the research and development of fatty amine polyoxyethylene ether according to claim 1, characterized in that: The material of the reactor tank body (1) is double-layer tempered glass, and a metal explosion-proof net is arranged on the outside of the double-layer tempered glass.

4. A special reaction kettle for the research and development of fatty amine polyoxyethylene ether according to claim 1, characterized in that: A temperature regulating component (5) is arranged outside the reactor tank body (1), and the temperature regulating component (5) comprises a temperature regulating tube (51) and a heat-insulating layer plate (52). The temperature regulating tube (51) is arranged around the outside of the reactor tank body (1), and the heat-insulating layer plate (52) is sleeved on the outside of the temperature regulating tube (51) and fixedly arranged on the reactor tank body (1).

5. A special reaction kettle for the research and development of fatty amine polyoxyethylene ether according to claim 2, characterized in that: The stirring blades (23) and the stirring scrapers (4) are provided in multiple groups.

6. A special reaction kettle for the research and development of fatty amine polyoxyethylene ether according to claim 1, characterized in that: A sensor assembly (6) is arranged on the outside of the reactor tank body (1), and the sensor assembly (6) comprises a pressure sensor (61) and a temperature sensor (62).

Images