CN112755938A

CN112755938A - Unsaturated polyester resin is reation kettle for equipment

Info

Publication number: CN112755938A
Application number: CN201911063656.7A
Authority: CN
Inventors: 许和清
Original assignee: Wuxi Guanghesheng Chemical Equipment Co ltd
Current assignee: Wuxi Guanghesheng Chemical Equipment Co ltd
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2021-05-07

Abstract

The invention discloses a reaction kettle for unsaturated polyester resin equipment, and particularly relates to the field of reaction kettles. According to the invention, the eddy current coil and the large-area stirring blade are arranged, the stirring blade is electromagnetically heated by the eddy current coil, the heating speed is high, the energy conversion rate is high, the heated stirring blade is in contact with the material in the stirring process, the heat can be uniformly transferred to the material, the phenomenon that the side wall of the kettle body is burnt due to the traditional heating coil is thoroughly avoided, and the heating is uniform and efficient.

Description

Unsaturated polyester resin is reation kettle for equipment

Technical Field

The invention relates to the technical field of reaction kettles, in particular to a reaction kettle for unsaturated polyester resin equipment.

Background

The reaction kettle is a key device for synthesizing unsaturated polyester resin in the production of unsaturated polyester resin, the common reaction kettle adopts a pipe clamping for heating, when the volume of the kettle is increased, the ratio of the increase of the surface area of the kettle is smaller than the ratio of the increase of the volume, so that the effective heating or cooling area is reduced for unit volume, the production period is prolonged and is difficult to control, in the prior art, the reaction kettle for unsaturated polyester resin can generate useful gas only in the vacuum pumping stage to be recycled, and the recycling efficiency is low.

In order to solve the problems, the patent of patent application publication No. CN201770640U discloses a reaction kettle for unsaturated polyester resin equipment, refer to the attached figure 5 of the specification, in the application, a coil pipe is arranged in the kettle through the invention, so that the production period is controlled, the production efficiency is improved, a stirring shaft 4 arranged in the kettle is arranged on a central line of the kettle, the materials can be uniformly mixed, the temperature of the whole reactant is uniform, the local overheating is prevented, a manhole is arranged for workers to enter the kettle to check the corrosion condition of the kettle wall and the integrity of internal equipment, a plurality of sampling pipes 6 are arranged on the kettle, so that the sampling inspection can be carried out regularly to determine the reaction degree, the production efficiency is improved, and the economic benefit is brought.

However, the technical scheme still has more defects in actual application;

firstly, because the reaction kettle adopts the heating coil to heat materials in the reaction kettle, the heating coil can only heat the side wall of the kettle body, and the material principle of the side wall is poor in fluidity of the stirring blade, so that the heat convection cannot be quickly realized, the phenomena of wall adhesion and scorching are easily caused on the side wall, and the product quality is reduced;

secondly, because this reation kettle adopts directly to keep warm to the inside inert gas that adds of heat preservation chamber of the cauldron body, inert gas generally keeps through low temperature liquefaction, causes the internal temperature of cauldron to reduce rapidly because its temperature is lower when inert gas gets into, leads to the cauldron body low in heating efficiency.

Therefore, it is highly desirable to provide a reaction kettle for unsaturated polyester resin equipment, which can be heated uniformly to prevent scorching.

Disclosure of Invention

In order to overcome the defects in the prior art, the embodiment of the invention provides the reaction kettle for unsaturated polyester resin equipment, the eddy current coil and the large-area stirring paddle are arranged, the stirring paddle is electromagnetically heated by the eddy current coil, the heating speed is high, the energy conversion rate is high, the heated stirring paddle is in contact with the material in the stirring process and can uniformly transfer heat to the material, the phenomenon that the side wall of the kettle body is burnt due to the traditional heating coil is thoroughly avoided, and the heating is uniform and efficient; in addition, the heat exchange tube is arranged on the guide tube on the upper side of the condenser in a penetrating mode, the inert gas enters the heat preservation cavity on the outer side of the reaction kettle after being heated by the material in the guide tube when passing through the heat exchange tube, and then a layer of air protection film is formed on the outer side of the reaction kettle, so that the heat preservation performance of the reaction kettle is greatly improved, the heat consumption is reduced, the heat preservation performance of the reaction kettle is improved, the recycling of the heat in the waste gas is realized, the waste of the heat is avoided, and the problems in the background technology are solved.

In order to achieve the purpose, the invention provides the following technical scheme: a reaction kettle for unsaturated polyester resin equipment comprises a kettle body, wherein the kettle body is of a double-layer structure, a coil is fixedly arranged inside the side wall of the kettle body, a metal ring is fixedly arranged on the surface of the inner wall of the kettle body, a plurality of sampling pipes are fixedly arranged on the surface of the kettle body, a discharging pipe is fixedly arranged at the bottom end of the kettle body, a power device is fixedly arranged on the top surface of the kettle body, a stirring shaft is fixedly connected with the output end of the power device, stirring blades are fixedly arranged on the surface of the stirring shaft, a fractionating column is fixedly connected to the top end of the kettle body, a heat exchange pipe is fixedly connected with the output end of the fractionating column, a heat exchange device is fixedly sleeved outside the heat exchange pipe, an inert gas filling port is fixedly connected to one side of the heat exchange device, the other side of the heat exchange device is communicated with the inner wall cavity, the other end fixedly connected with condenser of pipe, the other end fixedly connected with receiver of condenser.

In a preferred embodiment, the top surface of the kettle body is provided with a transparent observation hole, the kettle body is a stainless steel component, a closed cavity is formed between the double-layer side walls of the kettle body, and the bottom of the kettle body is provided with a heat-insulating interlayer.

In a preferred embodiment, the coil is an eddy current coil, the metal ring is fixedly clamped in the inner wall of the kettle body, the coil is wound on the outer side of the metal ring, and a gap is formed between the coil and the metal ring.

In a preferred embodiment, the stirring shaft and the stirring blade are metal members, the surface of the stirring blade is of a smooth surface structure, and the surface of the stirring shaft and the surface of the stirring blade are hardened.

In a preferred embodiment, the power device is composed of a motor and a speed reducer, an output end of the power device penetrates into the kettle body and is fixedly connected with the top end of the stirring shaft, and an output end of the power device is electrically connected with a rotating speed adjusting controller.

In a preferred embodiment, two ends of the heat exchange tube are respectively and fixedly connected with the output end of the fractionating column and the end of the guide tube, the surface of the heat exchange tube is provided with heat conducting fins, and the heat exchange tube is positioned inside the heat exchange device.

In a preferred embodiment, the communicating pipe of the condenser and the receiver is fixed with the sampling pipe, and the bottom end of the receiver is fixedly provided with the liquid outlet pipe.

The invention has the technical effects and advantages that:

1. according to the invention, the eddy current coil and the large-area stirring blade are arranged, the stirring blade is electromagnetically heated by the eddy current coil, the heating speed is high, the energy conversion rate is high, the heated stirring blade is in contact with the material in the stirring process, the heat can be uniformly transferred to the material, the phenomenon that the side wall of the kettle body is burnt due to the traditional heating coil is thoroughly avoided, and the heating is uniform and efficient;

2. according to the invention, the heat exchange cylinder is arranged on the guide pipe on the upper side of the condenser in a penetrating manner, the inert gas enters the heat preservation cavity on the outer side of the reaction kettle after being heated by the material in the guide pipe when passing through the heat exchange cylinder, and then a layer of air protection film is formed on the outer side of the reaction kettle, so that the heat preservation performance of the reaction kettle is greatly improved, the heat consumption is reduced, the heat preservation performance of the reaction kettle is improved, the heat in the waste gas is recycled, and the waste of heat is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the internal structure of the autoclave body of the present invention.

Fig. 3 is a schematic structural diagram of the heating device of the present invention.

Fig. 4 is a schematic view of the heat exchange tube structure of the present invention.

FIG. 5 is a diagram illustrating a structure of a comparison file according to the present invention.

The reference signs are: 1. a kettle body; 2. a coil; 3. a metal ring; 4. a stirring shaft; 5. a stirring paddle; 6. a sampling tube; 7. a discharge pipe; 8. a power plant; 9. a fractionating column; 10. a heat exchange device; 11. an inert gas filling port; 12. a conduit; 13. a condenser; 14. a receiver; 15. a heat exchange tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in attached figures 1-4, the reaction kettle for unsaturated polyester resin equipment comprises a kettle body 1, wherein the kettle body 1 is of a double-layer structure, a coil 2 is fixedly arranged inside the side wall of the kettle body 1, a metal ring 3 is fixedly arranged on the surface of the inner wall of the kettle body 1, a plurality of sampling pipes 6 are fixedly arranged on the surface of the kettle body 1, a discharging pipe 7 is fixedly arranged at the bottom end of the kettle body 1, a power device 8 is fixedly arranged on the top surface of the kettle body 1, a stirring shaft 4 is fixedly connected to the output end of the power device 8, stirring blades 5 are fixedly arranged on the surface of the stirring shaft 4, a fractionating column 9 is fixedly connected to the top end of the kettle body 1, a heat exchange pipe 15 is fixedly connected to the output end of the fractionating column 9, a heat exchange device 10 is fixedly connected to the outer side of the heat exchange pipe 15, an inert gas filling port 11 is fixedly connected, the other end of the heat exchange tube 15 is fixedly connected with a guide tube 12, the other end of the guide tube 12 is fixedly connected with a condenser 13, and the other end of the condenser 13 is fixedly connected with a receiver 14.

The implementation mode is specifically as follows: by arranging the eddy current coil 2 and the large-area stirring blade 5 and utilizing the eddy current coil 2 to carry out electromagnetic heating on the stirring blade 5, the heating speed is high, the energy conversion rate is high, the heated stirring blade 5 is in contact with materials in the stirring process, the heat can be uniformly transferred to the materials, the phenomenon that the side wall of a kettle body is burnt due to the traditional heating coil is thoroughly avoided, and the heating is uniform and efficient; in addition, the heat exchange tube 15 is arranged on the guide tube 12 on the upper side of the condenser 13 in a penetrating mode, inert gas enters the heat preservation cavity on the outer side of the reaction kettle after being heated by materials in the guide tube when passing through the heat exchange tube 15, and then a layer of air protection film is formed on the outer side of the reaction kettle, so that the heat preservation performance of the reaction kettle is greatly improved, the heat passing is reduced, the heat preservation performance of the reaction kettle is improved, the heat in waste gas is recycled, and the waste of heat is avoided.

Wherein, the top surface of the kettle body 1 is provided with a transparent observation hole, the kettle body 1 is a stainless steel component, a closed cavity is formed between the double-layer side walls of the kettle body 1, the bottom of the kettle body 1 is provided with a heat preservation interlayer, and the double-layer structure is favorable for heat insulation.

Wherein, coil 2 is the eddy current coil, and 3 fixed joint of becket are in the inner wall of the cauldron body 1, and coil 2 twines in the outside of becket 3, is equipped with the clearance between coil 2, the becket 3, and eddy current heating efficiency is faster, and energy conversion is high.

Wherein, (mixing) shaft 4, stirring paddle 5 are the metal material component, and stirring paddle 5's surface is plain structure, and hardening treatment is done to (mixing) shaft 4, stirring paddle 5's surface, improves (mixing) shaft 4, stirring paddle 5's structural strength and prevents that the material from gluing.

Wherein, power device 8 comprises motor and speed reducer, and power device 8's output penetrate in the cauldron body 1 with the top fixed connection of (mixing) shaft 4, power device 8's output electric connection has speed regulation controller for the rotational speed of (mixing) shaft 4, stirring paddle leaf 5 is controllable, prevents that power device 8 from starting at a high speed suddenly and causing reation kettle to topple.

Wherein, the both ends of heat exchange tube 15 respectively with fractionating column 9's output, the tip fixed connection of pipe 12, the surface of heat exchange tube 15 is equipped with heat conduction fin, heat exchange tube 15 is located heat transfer device 10's inside, inert gas gets into the heat preservation chamber outside the cauldron after being heated by the material in the pipe when heat exchange tube 15 to very big improvement reation kettle's thermal insulation performance.

Wherein, condenser 13, receiver 14's communicating pipe fixed sampling tube, receiver 14's bottom fixed mounting has the drain pipe, conveniently carries out the sample detection and observes.

The working principle of the invention is as follows:

firstly, materials are put into a kettle body 1, the end part of an inert gas filling port 11 is connected with an inert gas supplier, a power supply is started, a power device 8 provides power for stirring the materials by rotating a stirring shaft 4 and a stirring paddle blade 5, a coil 2 in an interlayer in the kettle body 1 is used for carrying out vortex heating on a metal ring 3, the stirring shaft 4 and the stirring paddle blade 5, simultaneously, the stirring shaft 4 and the stirring paddle blade 5 rotate to uniformly transfer heat to the materials and uniformly mix the materials, so that the temperature of the whole reactant is uniform, the local overheating is prevented, various reactants are well contacted with each other, moisture is quickly discharged, the reaction is accelerated, the working efficiency is improved, the inert gas enters a heat preservation cavity outside the kettle after being heated by the materials in a guide pipe when passing through a heat exchange device 10 and a heat exchange pipe 15, and then a layer of air protective film is formed outside the reaction kettle, thereby greatly improving the heat, the heat consumption is reduced, the heat insulation performance of the reaction kettle is improved, and the heat in the waste gas is recycled. .

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides an unsaturated polyester resin reation kettle for equipment, includes the cauldron body (1), the cauldron body (1) is bilayer structure, its characterized in that: the device comprises a kettle body (1), a coil (2) is fixedly arranged inside the side wall of the kettle body (1), a metal ring (3) is fixedly arranged on the inner wall surface of the kettle body (1), a plurality of sampling tubes (6) are fixedly arranged on the surface of the kettle body (1), a discharging tube (7) is fixedly arranged at the bottom end of the kettle body (1), a power device (8) is fixedly arranged on the top surface of the kettle body (1), a stirring shaft (4) is fixedly connected to the output end of the power device (8), stirring blades (5) are fixedly arranged on the surface of the stirring shaft (4), a fractionating column (9) is fixedly connected to the top end of the kettle body (1), a heat exchange tube (15) is fixedly connected to the output end of the fractionating column (9), a heat exchange device (10) is fixedly connected to the outer side of the heat exchange tube (15), and an inert gas filling port (, the other side of heat transfer device (10) is linked together through the inner wall cavity of pipe and the cauldron body (1), the other end fixedly connected with pipe (12) of heat exchange tube (15), the other end fixedly connected with condenser (13) of pipe (12), the other end fixedly connected with receiver (14) of condenser (13).

2. The reaction kettle for unsaturated polyester resin equipment according to claim 1, wherein: the top surface of the kettle body (1) is provided with a transparent observation hole, the kettle body (1) is a stainless steel component, a closed cavity is formed between the double-layer side walls of the kettle body (1), and the bottom of the kettle body (1) is provided with a heat-insulating interlayer.

3. The reaction kettle for unsaturated polyester resin equipment according to claim 1, wherein: coil (2) are eddy current coil, becket (3) fixed joint is in the inner wall of the cauldron body (1), coil (2) twine in the outside of becket (3), be equipped with the clearance between coil (2), becket (3).

4. The reaction kettle for unsaturated polyester resin equipment according to claim 1, wherein: the stirring shaft (4) and the stirring blade (5) are metal components, the surface of the stirring blade (5) is of a smooth surface structure, and the surfaces of the stirring shaft (4) and the stirring blade (5) are hardened.

5. The reaction kettle for unsaturated polyester resin equipment according to claim 1, wherein: the power device (8) is composed of a motor and a speed reducer, the output end of the power device (8) penetrates into the kettle body (1) and is fixedly connected with the top end of the stirring shaft (4), and the output end of the power device (8) is electrically connected with a rotating speed adjusting controller.

6. The reaction kettle for unsaturated polyester resin equipment according to claim 1, wherein: the two ends of the heat exchange tube (15) are respectively fixedly connected with the output end of the fractionating column (9) and the end part of the guide tube (12), heat conducting fins are arranged on the surface of the heat exchange tube (15), and the heat exchange tube (15) is located inside the heat exchange device (10).

7. The reaction kettle for unsaturated polyester resin equipment according to claim 1, wherein: the sampling tube is fixed to the communicating tube of condenser (13), receiver (14), the bottom fixed mounting of receiver (14) has the drain pipe.