CN210473950U

CN210473950U - Sealed production system that glues of organosilicon

Info

Publication number: CN210473950U
Application number: CN201920644269.1U
Authority: CN
Inventors: 魏雪山
Original assignee: Jiangxi Nasen Technology Co ltd
Current assignee: Jiangxi Nasen Technology Co ltd
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-05-08
Anticipated expiration: 2029-05-07

Abstract

The utility model belongs to the field of chemical industry, in particular to an organosilicon sealant production system, which comprises a reaction kettle, wherein the reaction kettle is of an airtight structure and comprises three layers, the innermost layer is a reaction kettle body, the middle layer is a jacket, the outermost layer is a heat preservation layer, the reaction kettle body is provided with a feed inlet and a discharge outlet, and the reaction kettle body is also provided with a vacuumizing port and a nitrogen filling port; a metal guide plate is arranged in the reaction kettle jacket, the guide plate is connected to the reaction kettle body for heat conduction, the guide plates are arranged in the jacket in a criss-cross manner, and the reaction kettle jacket is also provided with a feed inlet and a discharge outlet; the mode of arranging the guide plate in the jacket is adopted, heat is recycled, the heat exchange area is large, and the heat exchange efficiency is high.

Description

Sealed production system that glues of organosilicon

Technical Field

The utility model belongs to the chemical industry field especially relates to a sealed production system that glues of organosilicon.

Background

The organosilicon sealant is mainly silicone adhesive, is prepared by mixing linear polysiloxane serving as a main raw material and auxiliary agents such as a cross-linking agent, a filler, a plasticizer, a coupling agent, a catalyst and the like, and is cured to form the elastic silicone rubber.

Silicone adhesives are classified into various forms, and they can be classified into one-component and two-component types according to the packaging form of the product. The single-component silicone adhesive takes hydroxyl-terminated polydimethylsiloxane as a base adhesive and ketoxime silane as a cross-linking agent, and is cured by reacting with moisture in the air when in use; the two-component silicone adhesive consists of A, B components, wherein the component A is silicone adhesive, and the component B is curing agent, and the components are mixed when in use, so that the curing is generated.

In the organosilicon sealant production process, the reaction kettle needs to be heated in the reaction stage to promote the reaction, shorten the reaction time, and after the reaction is finished, the sealant needs to be cooled and can be filled after being cooled to a certain degree. The heating process needs additional energy supply, the cooling process needs energy release to the outside, the heating process and the cooling process are combined, the comprehensive utilization efficiency of energy is improved, the production process flow is optimized, and the method becomes a research direction in the field of organosilicon sealants. One idea is to utilize the high-temperature sealant after the reaction to exchange heat with the raw materials before the reaction, thereby saving energy.

For example, the patent of application number "CN 201721459222.5", disclose a "107 glues production system", add the buffer tank between reation kettle and holding vessel, be provided with the heat exchange tube on the buffer tank, the heat exchange tube becomes the heliciform and encircles the outside that sets up in the buffer tank, the circulation has heat transfer medium in the heat exchange tube, for example water, high temperature glue solution from reation kettle output is carried to the holding vessel after advancing the buffer tank in, the heat exchange tube that sets up on the buffer tank absorbs through the heat exchange effect to the heat energy that high temperature glue solution contains, then will be supplied to other stations that need consume the heat energy with the heat transfer medium (hot water) output that has heated, for example preheat the raw materials of preparation glue.

However, the technical scheme still has the following defects: 1. the viscosity of the formed high-temperature glue solution is very high, and a buffer tank is added, so that additional equipment investment and equipment maintenance are required; 2. the heat in the buffer tank is led out through the heat exchange tube arranged on the outer side, the heat exchange area of the contact is small, the heat exchange efficiency is not high, and the energy loss is large.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to provide an organosilicon sealant production system, which comprises a reaction kettle, wherein the reaction kettle is of an airtight structure and comprises three layers, the innermost layer is a reaction kettle body, the middle layer is a jacket, the outermost layer is a heat preservation layer, the reaction kettle body is provided with a feed inlet and a discharge outlet, and the reaction kettle body is also provided with a vacuumizing port and a nitrogen charging port; the reaction kettle jacket is internally provided with a metal guide plate, the guide plate is connected to the reaction kettle body for heat conduction, the guide plates are arranged in the jacket in a criss-cross mode, and the reaction kettle jacket is further provided with a feeding hole and a discharging hole.

Further, the reaction kettle is also provided with a heating device.

In one embodiment, the heating device is an electric heating device, and may be an electric heating wire, an electric tracing wire, or an electromagnetic induction heating coil.

One mode is that medium heating is adopted, and specifically, steam heating and heat conduction oil heating are adopted, and a steam heating jacket and a heat conduction oil heating jacket are arranged.

One of the purposes of the utility model is to provide an organosilicon sealant production method, adding reaction raw materials and fillers into a reaction kettle body, vacuumizing, stirring and mixing uniformly, heating, removing moisture in materials, adding a cross-linking agent and a catalyst for reaction, after the reaction is finished, filling dry nitrogen into the kettle, breaking the vacuum state, cooling and packaging;

in the cooling process, reaction raw materials are fed into the jacket, the reaction raw materials are stored in the jacket to absorb heat in the reaction kettle body, and meanwhile, the metal guide plates continuously transfer heat among the reaction raw materials to balance heat distribution;

after the sealant in the reaction kettle body is packaged, the preheated reaction raw materials in the jacket are added into the reaction kettle body for reaction.

This internal sealed glue of reation kettle treats the packing in-process at cooling, and the heat transfer has accelerated this internal sealed glue's cooling rate for the interior reaction material of cover in the jacket on the one hand, and on the other hand has heated the reaction material in the jacket, has also saved the time to reaction material heating. Therefore, not only energy is saved, but also time is saved, and the production efficiency is improved.

One of the purposes of the utility model is to provide an organosilicon sealant production system, which comprises a storage tank and a reaction kettle; the storage tank is closed and is provided with a jacket structure, and the jacket is provided with a feed inlet and a discharge outlet; the guide plates are arranged in the jacket in a criss-cross manner and used for guiding the flowing state of materials in the jacket, the guide plates are made of metal materials and are connected to the storage tank body for heat conduction, and the heat insulation layer is arranged outside the jacket; the reaction kettle is closed and is provided with a heating device, a vacuumizing device and a nitrogen filling device; the feed inlet of holding vessel is connected to the reation kettle discharge gate, the cover feed inlet that presss from both sides of holding vessel connects the reaction mass, and the cover export that presss from both sides of holding vessel connects the reation kettle feed inlet.

Further, the storage tank heat insulation layer can be specifically heat insulation cotton or asbestos gauze or a vacuum heat insulation layer.

Traditional holding vessel is through cooling off the sealed glue in the jar to atmospheric environment nature heat dissipation, can not be provided with heat preservation or heat preservation device, the utility model discloses an embodiment passes through to the reaction raw materials heat transfer in the cover and cools off sealed glue in the jar, sets up heat preservation or heat preservation device, is favorable to reducing the heat and scatters and disappears to atmospheric environment, improves energy utilization.

Furthermore, the storage tank is also provided with a vacuumizing port which is connected with a vacuumizing device, and the vacuumizing device can be a vacuum pump or a fan or a vacuumizing pipeline of a large vacuum system.

Furthermore, the storage tank is also provided with a nitrogen charging port connected with a nitrogen supply device, the nitrogen supply device can be a steel cylinder, a liquefied air fractionation nitrogen preparation device, an air compressor combined molecular sieve nitrogen preparation device, or a large nitrogen charging pipeline of a nitrogen supply system.

Further, the heating device of the reaction kettle is a jacket, and the specific heating mode is steam heating or heat-conducting oil heating.

Further, the reaction kettle is also provided with a heat insulation layer, and specifically can be heat insulation cotton or an asbestos gauze or a vacuum heat insulation layer.

Further, the reaction kettle is also provided with a vacuumizing port which is connected with a vacuumizing device, and the vacuumizing device can be a vacuum pump or a fan or a vacuumizing pipeline of a large vacuum system.

Furthermore, the reaction kettle is also provided with a nitrogen filling port which is connected with a nitrogen supply device, the nitrogen supply device can be a steel cylinder, a liquefied air fractionation nitrogen preparation device, an air compressor combined molecular sieve nitrogen preparation device, or a large nitrogen filling pipeline of a nitrogen supply system.

Furthermore, the storage tank and the reaction kettle can share the same set of vacuum extractor and are respectively controlled by arranging the regulating valve.

Further, the storage tank and the reaction kettle can share the same set of nitrogen charging device and are respectively controlled by arranging the regulating valve.

One of the purposes of the utility model is to provide an organosilicon sealant production method, adding reaction raw materials and fillers into a reaction kettle, vacuumizing, stirring and mixing uniformly, heating, removing moisture in materials, adding a cross-linking agent and a catalyst for reaction, after the reaction is finished, filling dry nitrogen into the kettle, and breaking the vacuum state; vacuumizing the storage tank, transferring the materials in the reaction kettle into the storage tank, cooling, discharging and packaging; in the cooling process, reaction raw materials are fed into a jacket of the storage tank, and the reaction raw materials are fed into the reaction kettle to react after absorbing heat in the storage tank.

Sealed glue in the holding vessel treats the packaging process at cooling, and the reaction raw materials in the jacket is given in the heat transfer, and on the one hand, reaction raw materials is constantly mobile, and the heat transfer effect is better, and on the one hand, the flow state of the constantly changing reaction raw materials of guide plate that sets up makes its intensive mixing, balanced heat distribution, and the heat transfer effect is better, and on the one hand, the metal guide plate of connection at the holding vessel body has expanded heat transfer area of contact, reinforcing heat transfer effect.

The utility model discloses an in-process that this embodiment can seal the packing in the holding vessel is just reacted to feeding among the reation kettle, needn't wait for sealed packing to finish just can carry out the reaction of next cauldron, has improved production efficiency.

One of the purposes of the utility model is to provide an organosilicon sealant production system, which comprises a storage tank and a reaction kettle; the storage tank is closed and is provided with a jacket structure, and the jacket is provided with a feed inlet and a discharge outlet; the guide plates are arranged in the jacket in a criss-cross manner and used for guiding the flowing state of materials in the jacket, the guide plates are made of metal materials and are connected to the storage tank body for heat conduction, and the heat insulation layer is arranged outside the jacket; the reaction kettle is closed and is provided with a heating device, a vacuumizing device and a nitrogen filling device; the discharge port of the reaction kettle is connected with the feed port of the storage tank, the jacket feed port of the storage tank is connected with reaction materials, and the jacket outlet of the storage tank is connected with the feed port of the reaction kettle; the holding vessel is provided with two, two holding vessels are the same with reation kettle's connection structure, reation kettle connects be provided with the control valve on the pipeline of two holding vessels respectively.

One of the purposes of the utility model is to provide an organosilicon sealant production method, which comprises the following processes:

(1) adding reaction raw materials and a filler into a reaction kettle (A), vacuumizing, stirring, uniformly mixing, heating, removing water in the materials, adding a cross-linking agent and a catalyst for reaction, filling dry nitrogen into the kettle after the reaction is finished, and breaking the vacuum state;

(2) vacuumizing the storage tank (B), transferring the materials in the reaction kettle (A) into the storage tank (B), cooling and packaging;

(3) in the cooling process, reaction raw materials are filled in the jacket of the storage tank (B) to continuously absorb the heat in the body of the storage tank (B);

(4) then adding the reaction raw materials and the filler into the reaction kettle (A), filling dry nitrogen into the kettle after the reaction is finished, breaking the vacuum state,

(5) vacuumizing the storage tank (C), transferring the materials in the reaction kettle (A) into the storage tank (C), cooling and packaging;

(6) in the cooling process, reaction raw materials are fed into a jacket of the storage tank (C) to continuously absorb heat in the storage tank (C) body;

(7) feeding the preheated reaction raw materials in the jacket of the storage tank (B) into the reaction kettle (A) for reaction, filling dry nitrogen into the kettle after the reaction is finished, and breaking the vacuum state;

(8) vacuumizing the storage tank (B), transferring the materials in the reaction kettle (A) into the storage tank (B), cooling and packaging;

(9) feeding the preheated reaction raw materials in the jacket of the storage tank (C) into the reaction kettle (A) for reaction, filling dry nitrogen into the kettle after the reaction is finished, and breaking the vacuum state;

(10) and (5) repeating the steps (5) to (9) in sequence to realize the recycling of the heat of the storage tank and the reaction kettle.

One of the purposes of the utility model is to provide an organosilicon sealant production system, which comprises two reaction kettles, wherein the first reaction kettle and the second reaction kettle have the same or similar structures; the first reaction kettle and the second reaction kettle are of a closed structure, the reaction kettle comprises three layers, the innermost layer is a reaction kettle body, the middle layer is a jacket, and the outermost layer is a heat insulation layer; the first reaction kettle and the second reaction kettle are provided with a feeding hole and a discharging hole in a jacket; guide plates are also arranged in the jacket of the first reaction kettle and the second reaction kettle, the guide plates are arranged in the jacket in a criss-cross mode to guide the flowing state of materials in the jacket, and the guide plates are made of metal materials and are connected to the storage tank body to conduct heat; the feed inlet of the first reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the first reaction kettle jacket is connected with the feed inlet of the second reaction kettle body; the feed inlet of the second reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the second reaction kettle jacket is connected with the feed inlet of the first reaction kettle body.

One of the purposes of the utility model is to provide an organosilicon sealant production method, adding reaction raw materials and fillers into a first reaction kettle, vacuumizing, stirring and mixing uniformly, heating, removing moisture in materials, adding a cross-linking agent and a catalyst for reaction, filling dry nitrogen into the kettle after the reaction is finished, breaking the vacuum state, cooling and then discharging and packaging;

in the cooling and temperature reducing process of the first reaction kettle, reaction raw materials are fed into a first reaction kettle jacket, the reaction raw materials are fed into a second reaction kettle body after absorbing heat in the first reaction kettle body, and after the reaction in the second reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

in the cooling and temperature reducing process of the second reaction kettle, reaction raw materials are fed into a jacket of the second reaction kettle, the reaction raw materials are fed into the first reaction kettle body after absorbing heat in the second reaction kettle body, and after the reaction in the first reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

the process is repeated to realize the continuous production of the organosilicon sealant.

One of the purposes of the utility model is to provide an organosilicon sealant production system, which comprises reaction kettles, wherein the number of the reaction kettles is N, N is an integer larger than 2, and the first reaction kettle, the second reaction kettle and the Nth reaction kettle have the same or similar structures; the reaction kettle is of a closed structure and comprises three layers, wherein the innermost layer is a reaction kettle body, the middle layer is a jacket, and the outermost layer is a heat insulation layer;

the reaction kettle jacket is provided with a feed inlet and a discharge outlet;

the reaction kettle jacket is also internally provided with guide plates which are arranged in the jacket in a criss-cross manner to guide the flowing state of materials in the jacket, and the guide plates are made of metal materials and are connected to the storage tank body to conduct heat;

the feed inlet of the first reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the first reaction kettle jacket is connected with the feed inlet of the second reaction kettle body;

the feed inlet of the second reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the second reaction kettle jacket is connected with the feed inlet of the first reaction kettle body;

are connected in sequence in this way;

a feed inlet of the (N-1) th reaction kettle jacket is connected with reaction raw materials, and a discharge outlet of the (N-1) th reaction kettle jacket is connected with a feed inlet of the (N) th reaction kettle body;

the feed inlet of the Nth reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the Nth reaction kettle jacket is connected with the feed inlet of the first reaction kettle body.

in the cooling and temperature reducing process of the second reaction kettle, reaction raw materials are fed into a jacket of the second reaction kettle, the reaction raw materials are fed into a third reaction kettle body after absorbing heat in the second reaction kettle body, and after the reaction in the third reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

the steps are sequentially carried out;

in the process of cooling the N-1 reaction kettle, reaction raw materials are fed into a jacket of the N-1 reaction kettle, the reaction raw materials are fed into the N-1 reaction kettle body after absorbing heat in the N-1 reaction kettle body, and after the reaction in the N-1 reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

in the process of cooling the Nth reaction kettle, reaction raw materials are fed into a jacket of the Nth reaction kettle, the reaction raw materials are fed into the first reaction kettle body after absorbing the heat in the Nth reaction kettle body, and after the reaction in the first reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

the continuous production of the organosilicon sealant can be realized by repeating the process.

Has the advantages that:

1. the utility model discloses an embodiment adopts the mode that sets up the guide plate in the clamp cover, retrieves the heat, and heat transfer area is big, and heat exchange efficiency is high.

2. The utility model discloses an embodiment absorbs the heat in the reation kettle body through the continuous flow of reaction raw materials in the jacket, and the guide plate changes the mobile state of material, and heat exchange efficiency is higher.

3. The utility model discloses an embodiment sets up heat preservation or heat preservation device outside pressing from both sides the cover, reduces the heat and scatters and disappears in to atmospheric environment, and energy utilization is high.

4. The utility model discloses an embodiment can realize production, packing, recovery heat by single cauldron.

5. The utility model discloses an embodiment can realize serialization production.

6. The utility model discloses an embodiment, reaction raw materials reation kettle after preheating, the heating time who reachs rated reaction temperature is short, and production efficiency is high.

7. The utility model discloses an embodiment, reaction raw materials enter into hot reation kettle through preheating the back, and hot cauldron advances the hot material, and the heat scatters and disappears fewly, and production efficiency is high.

Drawings

FIG. 1 is a silicone sealant production system according to an embodiment of the present invention;

FIG. 2 is a silicone sealant production system according to an embodiment of the present invention;

FIG. 3 is a silicone sealant production system according to an embodiment of the present invention;

FIG. 4 is a silicone sealant production system according to an embodiment of the present invention;

FIG. 5 is a silicone sealant production system according to an embodiment of the present invention;

wherein, 10 the reaction kettle body, 11 the feed inlet, 12 the discharge port, 13 the vacuum-pumping port, 14 fills the nitrogen gas port; 20 jackets, 21 material ports, 22 material ports, 23 guide plates and 24 guide plates; 30 insulating layer; 50 storage tanks, 51 jackets, 511 material ports, 512 material ports, 513 guide plates, 514 guide plates and 52 heat-insulating layers; 60 reaction kettle, 61 heating device and 62 heat preservation device; 70 reaction kettle body, 71 jacket, 711 material port, 712 material port, 713 guide plate, 714 guide plate and 72 heat preservation layer; 80 reaction kettle bodies, 81 jacket, 811 material openings, 812 material openings, 813 guide plates, 814 guide plates and 82 heat-insulating layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in the attached figure 1, an organosilicon sealant production system comprises a reaction kettle, wherein the reaction kettle is of a closed structure and comprises three layers, the innermost layer 10 is a reaction kettle body, the middle layer 20 is a jacket, the outermost layer 30 is a heat insulation layer, the reaction kettle body 10 is provided with a feed inlet 11 and a discharge outlet 12, and the reaction kettle body is also provided with a vacuum pumping port 13 and a nitrogen charging port 14; the reaction kettle jacket 20 is internally provided with guide plates 23 and 24 for guiding the flowing state of materials in the jacket, the guide plates 23 and 24 are made of metal and are connected to the reaction kettle body 10 for heat conduction, the guide plates 23 are mainly arranged on the side wall part of the jacket and are arranged in the jacket in a criss-cross manner, the materials in the jacket from top to bottom or from bottom to top are guided to change the direction for flowing, the guide plates 24 are mainly arranged at the bottom of the jacket and are arranged in the jacket in a criss-cross manner, and the materials in the jacket from left to right or from right to left are guided to change the direction for; the reaction kettle jacket is also provided with material ports 21 and 22, the material port 21 is arranged on the upper part, the material port 22 is arranged on the lower part, materials can be fed from the material port 21 and discharged from the material port 22, the materials in the jacket flow from top to bottom, the materials can also be fed from the material port 22 and discharged from the material port 21, and the materials in the jacket flow from bottom to top.

Further, the reaction kettle is also provided with a heating device.

Example 2

A production method of an organosilicon sealant uses the production system in the specific embodiment 1, reaction raw materials and fillers are added into a reaction kettle body 10, the reaction kettle is vacuumized, stirred and mixed uniformly, then heated, the moisture in the materials is removed, a cross-linking agent and a catalyst are added for reaction, after the reaction is finished, dry nitrogen is filled into the kettle, the vacuum state is broken, and the kettle is cooled and packaged.

In the cooling process, advance reaction raw materials in the cover 20, material mouth 21 is the import, and material mouth 22 is closed, and reaction raw materials stores in the cover, absorbs the heat in the reation kettle body 10, and the guide plate of metal constantly transmits the heat between reaction raw materials simultaneously, balanced heat distribution.

After the sealant in the reaction kettle body 10 is packaged, the preheated reaction raw materials in the jacket 20 are added into the reaction kettle body 10 for reaction.

During the packing process is treated in cooling to sealed glue in the reation kettle body 10, the heat transfer is for the interior reaction raw materials of cover in, has accelerated the cooling rate of sealed glue in the body 10 on the one hand, and on the other hand has heated the interior reaction raw materials of cover, has also saved the time to reaction raw materials heating. Therefore, the utility model discloses the mode has not only practiced thrift the energy, has practiced thrift the time moreover, has improved production efficiency.

Example 3

As shown in fig. 2, the silicone sealant production system comprises a storage tank 50 and a reaction kettle 60;

the storage tank 50 is sealed and is provided with a jacket structure 51, the jacket 51 is provided with a material port 511 and a material port 512, the material port 511 is arranged above the material port 512, the material can be fed from the material port 511 and discharged from the material port 512, the material in the jacket flows from top to bottom, the material can also be fed from the material port 512 and discharged from the material port 511, and the material in the jacket flows from bottom to top; the jacket 51 is also internally provided with guide plates 513 and 514 for guiding the flowing state of materials in the jacket, the guide plates 513 and 514 are made of metal and are connected to the storage tank body 50 for heat conduction, the guide plates 513 are mainly arranged on the side wall part of the jacket and are arranged in the jacket in a criss-cross manner, the materials in the jacket from top to bottom or from bottom to top are guided to flow in a variable direction, the guide plates 514 are mainly arranged at the bottom of the jacket and are arranged in the jacket in a criss-cross manner, and the materials in the jacket from left to right or from right to left are guided to flow in a variable direction; an insulating layer 52 is arranged outside the jacket 51;

the reaction kettle 60 is sealed and provided with a heating device 61, and a heat preservation device 62 is arranged on the outermost layer;

the discharge port of the reaction kettle 60 is connected with the feed port of the storage tank 50, the jacket feed port of the storage tank is connected with reaction materials, and the jacket outlet of the storage tank is connected with the feed port of the reaction kettle.

Further, the storage tank insulating layer 52 may be specifically an insulating cotton or asbestos cloth or a vacuum insulating layer.

Further, the storage tank 50 is further provided with a vacuum port connected to a vacuum device, which may be a vacuum pump or a blower, or a vacuum pipeline of a large vacuum system.

Further, the storage tank 50 is further provided with a nitrogen charging port connected to a nitrogen supply device, the nitrogen supply device may be a steel cylinder, a liquefied air fractionation nitrogen preparation device, an air compressor combined molecular sieve nitrogen preparation device, or a large nitrogen charging pipeline of a nitrogen supply system.

Further, the heating device 61 of the reaction kettle 60 is a jacket, and the specific heating mode is steam heating or heat conducting oil heating.

Further, the heat preservation device 62 of the reaction kettle 60 is a heat preservation layer, and specifically may be heat preservation cotton or asbestos cloth or a vacuum heat insulation layer.

Further, the reaction kettle 60 is further provided with a vacuum pumping port connected to a vacuum pumping device, which may be a vacuum pump or a blower, or a vacuum pumping pipeline of a large vacuum system.

Further, the reaction kettle 60 is further provided with a nitrogen charging port connected with a nitrogen supply device, wherein the nitrogen supply device can be a steel cylinder, a liquefied air fractionation nitrogen preparation device, an air compressor combined molecular sieve nitrogen preparation device, or a large nitrogen supply system nitrogen charging pipeline.

Example 4

A method for producing organosilicon sealant comprises using the production system of embodiment 3, adding reaction raw materials and filler into a reaction kettle 60, vacuumizing, stirring, mixing uniformly, heating, removing water in the materials, adding a cross-linking agent and a catalyst for reaction, charging dry nitrogen into the kettle after the reaction is finished, breaking the vacuum state,

vacuumizing the storage tank 50, transferring the materials in the reaction kettle 60 into the storage tank 50, cooling and packaging;

in the cooling process, reaction raw materials are fed into a storage tank jacket 51, a material port 512 is an inlet, a material port 511 is an outlet, and the reaction raw materials move from bottom to top in the jacket and continuously absorb heat in a storage tank 50;

through continuous contact with the

guide plates

513 and 514, on one hand, the flow form of the materials is continuously changed, the materials are fully mixed, the heat distribution is balanced, on the other hand, the metal guide plates can also strengthen contact heat transfer, and the contact heat exchange area is expanded;

the material outlet 511 of the storage tank jacket is connected with the inlet of the reaction kettle, and the preheated reaction raw materials are added into the reaction kettle 60 for reaction.

Sealed glue in holding vessel 50 treats the packaging process at cooling, and the reaction raw materials in the jacket is given in the heat transfer, and on the one hand, reaction raw materials is constantly mobile, and the heat transfer effect is better, and on the one hand, the guide plate that sets up constantly changes reaction raw materials's flow state, makes its intensive mixing, and balanced heat distributes, and the heat transfer effect is better, and on the one hand, the metal guide plate of connection at the holding vessel body has expanded heat transfer area of contact, reinforcing heat transfer effect.

Compared with the embodiment 2, the embodiment has the advantages that the storage tank is additionally arranged, the reaction raw materials continuously flow in the jacket of the storage tank, the heat exchange effect is better, the energy is saved, in addition, the feeding in the reaction kettle can be fed for reaction in the process of sealing glue packaging in the storage tank, the reaction of the next kettle can be carried out without waiting for the sealing glue packaging, and the production efficiency is improved.

Example 5

As shown in fig. 3, in a silicone sealant production system, based on embodiment 5, 2 storage tanks 50 are provided, each being labeled B, C, a reaction kettle 60 is labeled a, one reaction kettle is matched with 2 storage tanks, and control valves are respectively provided on pipelines connecting the reaction kettle a to the storage tank B, C.

Example 6

A silicone sealant production method, using the production system of embodiment 5, includes the following processes:

(1) adding reaction raw materials and a filler into a reaction kettle A, vacuumizing, stirring, uniformly mixing, heating, removing water in materials, adding a cross-linking agent and a catalyst for reaction, filling dry nitrogen into the kettle after the reaction is finished, and breaking the vacuum state;

(2) vacuumizing the storage tank B, transferring the materials in the reaction kettle A into the storage tank B, cooling and packaging;

(3) in the cooling process, reaction raw materials are fed into a jacket of the storage tank B, and the heat in the body of the storage tank B is continuously absorbed;

(4) then adding the reaction raw materials and the filler into a reaction kettle A, filling dry nitrogen into the kettle after the reaction is finished, breaking the vacuum state,

(5) vacuumizing the storage tank C, transferring the materials in the reaction kettle A into the storage tank C, cooling and packaging;

(6) in the cooling process, reaction raw materials are fed into a jacket of the storage tank C, and the heat in the body of the storage tank C is continuously absorbed;

(7) feeding the preheated reaction raw materials in the jacket of the storage tank B into the reaction kettle A for reaction, filling dry nitrogen into the kettle after the reaction is finished, and breaking the vacuum state;

(8) vacuumizing the storage tank B, transferring the materials in the reaction kettle A into the storage tank B, cooling and packaging;

(9) feeding the preheated reaction raw materials in the jacket of the storage tank C into the reaction kettle A for reaction, filling dry nitrogen into the kettle after the reaction is finished, and breaking the vacuum state;

Embodiment 4 is compared in this embodiment, through setting up 2 holding vessel, in turn to the reation kettle feeding, make reaction raw materials have sufficient heat transfer time in the holding vessel, heat recovery is more abundant, make the material in the reation kettle removed the back by the transfer, under the still very high condition of cauldron temperature, go into the high temperature reaction raw materials after preheating immediately in to reation kettle, reation kettle's heat loses less, heat recovery is more abundant, need again to the energy consumption of reation kettle energy supply heating still less, heating time is shorter.

This embodiment adopts the production mode of holding vessel heat transfer, reation kettle "hot cauldron feeding", and energy recuperation utilizes more fully, and reation kettle heating time is shorter, and production efficiency is higher.

In one mode, the reaction vessel is maintained at a negative pressure during the feeding of the reaction vessel.

More preferably, the reaction vessel is maintained under an inert gas atmosphere during the feeding of the reaction vessel, the inert gas preferably being nitrogen.

The operation mode of 'hot kettle feeding hot material' has higher temperature, the danger of the technological process is slightly higher than that of the traditional mode, the negative pressure operation is adopted, the atmosphere protected by inert gas is kept, and the danger performance of the technological process is obviously reduced.

Example 7

As shown in fig. 4, the organosilicon sealant production system comprises 2 reaction kettles, the two reaction kettles have the same or similar structures, the reaction kettles are of a closed structure, the reaction kettles comprise three layers, the

innermost layers

70 and 80 are reaction kettle bodies, the

middle layers

71 and 81 are jackets, and the

outermost layers

72 and 82 are heat-insulating layers;

baffles 713 and 714 are arranged in the jacket 71 of the reaction kettle to guide the flowing state of materials in the jacket, the

baffles

713 and 714 are metal and are connected to the reaction kettle body 70 to conduct heat, the baffles 713 are mainly arranged on the side wall part of the jacket and are arranged in a crisscross manner in the jacket to guide the materials in the jacket to flow in a variable direction from top to bottom or from bottom to top, the baffles 714 are mainly arranged at the bottom of the jacket and are arranged in a crisscross manner in the jacket to guide the materials in the jacket to flow in a variable direction from left to right or from right to left;

the reaction kettle jacket 81 is internally provided with guide plates 813 and 814 which guide the flow state of materials in the jacket, the guide plates 813 and 814 are made of metal and are connected to the reaction kettle body 80 for heat conduction, the guide plates 813 are mainly arranged on the side wall part of the jacket and are arranged in the jacket in a crisscross manner, the materials in the jacket from top to bottom or from bottom to top are guided to flow in a variable direction, the guide plates 814 are mainly arranged at the bottom of the jacket and are arranged in the jacket in a crisscross manner, and the materials in the jacket are guided to flow in a variable direction from left to right or from right to left;

the reaction kettle jacket 71 is also provided with

material ports

711 and 712, the material port 711 is arranged at the upper part, the material port 712 is arranged at the lower part, the material port 712 is a material inlet, the material port 711 is a material outlet, and materials in the jacket flow from bottom to top;

the reaction kettle jacket 81 is also provided with

material ports

811 and 812, the material port 811 is arranged above the reaction kettle jacket, the material port 812 is arranged below the reaction kettle jacket, the material port 812 is a material inlet, the material port 811 is a material outlet, and materials in the jacket flow from bottom to top;

a feed inlet 712 of the reaction kettle jacket is connected with the reaction raw materials, and a discharge outlet 711 of the reaction kettle jacket is connected with a feed inlet of the reaction kettle body 80; the inlet 812 of the reactor jacket is connected with the reaction raw material, and the outlet 811 of the reactor jacket is connected with the inlet of the reactor body 70.

Further, the heat insulation layer of the

reaction kettle

70, 80 is specifically heat insulation cotton or asbestos gauze or vacuum heat insulation layer.

Further, the reaction kettles 70 and 80 are also provided with a vacuum-pumping port connected with a vacuum-pumping device, wherein the vacuum-pumping device can be a vacuum pump or a fan, or a vacuum-pumping pipeline of a large vacuum system.

Further, the reaction kettles 70 and 80 are also provided with nitrogen charging ports connected with a nitrogen supply device, wherein the nitrogen supply device can be a steel cylinder, a liquefied air fractionation nitrogen production device, an air compressor combined molecular sieve nitrogen production device, or a large nitrogen supply system nitrogen charging pipeline.

Example 8

A organosilicon fluid sealant production method, use the production system in embodiment 7, add reaction raw materials, packing into reactor 70, vacuumize, stir, mix after being homogeneous, heat, remove the moisture in the supplies, add cross-linking agent, catalyst to react, after finishing the reaction, charge dry nitrogen to the kettle, break the vacuum state, blow and pack after cooling;

in the cooling process of the reaction kettle 70, reaction raw materials are fed into the reaction kettle jacket 71, enter from the material port 712, absorb heat in the reaction kettle body 70, are continuously baffled and mixed by the

guide plates

714 and 713, are discharged from the material port 711, enter the reaction kettle body 80, are reacted, and are cooled, discharged and packaged after the reaction in the reaction kettle 80 is finished;

in the cooling process of the reaction kettle 80, reaction raw materials are fed into the reaction kettle jacket 81, enter from the material port 812, absorb heat in the reaction kettle body 80, are continuously baffled and mixed by the guide plates 814 and 813, are discharged from the material port 811, enter the reaction kettle body 70, react, and are cooled and packaged after the reaction in the reaction kettle 70 is completed.

The process is repeated, and the continuous production of the sealant can be realized.

According to the mode of the embodiment, after the sealant is reacted in the reaction kettle, the sealant does not need to be transferred to other places, and can be directly cooled and then discharged for packaging, so that the operation procedures are simplified, and the energy is saved. The viscosity of the sealant after the reaction is high, and at the moment, the sealant is transferred by consuming strong power equipment, so that great energy is consumed.

Compare in concrete embodiment 2, the mode of this embodiment, reaction raw materials constantly flows in reation kettle's jacket, and the heat transfer effect is better, more energy saving.

Compare in concrete embodiment 4, the mode of this embodiment need not again to the sealed glue after the reaction finishes shift, directly carries out cooling, blowing packing in reation kettle, and the process is simplified.

Moreover, the mode of the embodiment can realize continuous production, and compared with the intermittent production of the embodiment 2 and the embodiment 4, the production efficiency is higher, and the stability and the uniformity of the product are better.

Example 9

As shown in fig. 5, on the basis of the specific embodiment 7, a reaction kettle is added to the sealant production system, and the silicone sealant production system includes 4 reaction kettles, the reaction kettle has the same or similar structure as that of the reaction kettle of embodiment 3, and the reaction kettles are sequentially marked as # 1, # 2, # 3, and # 4 from left to right;

the reaction kettle is of a closed structure and comprises three layers, wherein the innermost layer is a reaction kettle body, the middle layer is a jacket, and the outermost layer is a heat insulation layer;

the reaction kettle jacket is internally provided with guide plates, the guide plates are metal and are connected to the reaction kettle body for heat conduction, the guide plates are mainly arranged on the side wall part of the jacket and are arranged in the jacket in a criss-cross manner, the materials in the jacket from top to bottom or from bottom to top are guided to flow in a variable direction, the guide plates are mainly arranged at the bottom of the jacket and are arranged in the jacket in a criss-cross manner, and the materials in the jacket from left to right or from right to left are guided to flow in a variable direction;

the reaction kettle jacket is also provided with a feed inlet and a discharge outlet;

the feed inlet of the 1# reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the 1# reaction kettle jacket is connected with the feed inlet of the 4# reaction kettle body; the feed inlet of the 4# reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the 4# reaction kettle jacket is connected with the feed inlet of the 3# reaction kettle body; the feed inlet of the 3# reaction kettle jacket is connected with reaction raw materials, and the discharge outlet of the 3# reaction kettle jacket is connected with the feed inlet of the 2# reaction kettle body; the feed inlet that 2# reation kettle pressed from both sides the cover connects the reaction raw materials, and the feed inlet of 1# reation kettle body is connected to the discharge gate that 2# reation kettle pressed from both sides the cover.

Example 10

A organosilicon fluid sealant production method, use the production system in embodiment 9, add reaction raw materials, filler into No. 1 reaction kettle, vacuumize, stir, mix after being homogeneous, heat, remove the moisture in the supplies, add cross-linking agent, catalyst to react, after finishing reacting, charge dry nitrogen to the kettle, break the vacuum state, blow and pack after cooling;

in the cooling and temperature reducing process of the No. 1 reaction kettle, reaction raw materials are fed into a jacket of the No. 1 reaction kettle to absorb heat in a reaction kettle body, the preheated reaction raw materials enter a No. 4 reaction kettle body to react, and after the reaction in the No. 4 reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

in the cooling and temperature reducing process of the No. 4 reaction kettle, reaction raw materials are fed into a jacket of the No. 4 reaction kettle, heat in a reaction kettle body is absorbed, the preheated reaction raw materials enter a No. 3 reaction kettle body for reaction, and after the reaction in the No. 3 reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

in the process of cooling the 3# reaction kettle, reaction raw materials are fed into a 3# reaction kettle jacket to absorb heat in the reaction kettle body, the preheated reaction raw materials enter a 2# reaction kettle body to react, and after the reaction in the 2# reaction kettle is finished, the reaction raw materials are cooled, discharged and packaged;

in the cooling process of the 2# reaction kettle, reaction raw materials are fed into a jacket of the 2# reaction kettle to absorb heat in the reaction kettle body, the reaction raw materials enter a body of the 1# reaction kettle after being preheated to perform reaction, and after the reaction in the 1# reaction kettle is completed, the reaction raw materials are cooled and packaged.

In actual production, sometimes the reaction kettle is very large, the sealant discharging and packaging speed is relatively slow, and the sealant is accumulated in the reaction kettle, so that the feeding production of the next kettle is influenced. Compared with the specific embodiment 8, the number of the reaction kettles is increased, a larger sealant production system is formed, and the reliability of continuous production is higher.

In the continuous production of example 8, if one reactor cannot keep up with the discharged packages, the sealant material is accumulated in the reactor, or one reactor fails and cannot work normally, the continuous production of the whole sealant is stopped, or intermittent production is performed. In the mode of this embodiment, if material accumulation or trouble appear in a reation kettle, unable normal work, only need switch this reation kettle and do not use, other remaining reation kettle still can normal serialization production. For example, in normal continuous production, the 2# reaction kettle has a fault, and needs to be stopped for maintenance, only the reaction raw material is required to be stopped from being fed into the jacket of the 2# reaction kettle, and the preheated reaction raw material in the jacket of the 3# reaction kettle directly enters the 1# reaction kettle, so that the fault of the 2# reaction kettle does not influence other 1#, 3# and 4# reaction kettles to form a continuous production system again for production.

Example 11

The volume of the reaction kettle body is about 5 cubic meters, and the volume of the reaction kettle jacket is about 7 cubic meters; the volume of the storage tank body is about 5 cubic meters, and the volume of the storage tank jacket is about 7 cubic meters.

Example 12

The organosilicon sealant is of a silicone structure, the raw materials are mainly hydroxy silicone oil, the filler comprises white carbon black or calcium carbonate, a plasticizer and solvent oil, the cross-linking agent is an alkoxy-containing multifunctional silane compound, such as methyltrimethoxysilane, ethyltrimethoxysilane, propyltrimethoxysilane, vinyltrimethoxysilane, phenyltrimethoxysilane, aniline-methyl-trimethoxysilane or diethylamine-methyl-trimethoxysilane, and the catalyst is an organic tin compound or an organic titanium compound.

The reaction raw materials are added into the reaction kettle body in a vacuum feeding mode, negative pressure is kept in the reaction kettle body, and the raw materials are kept at normal pressure or positive pressure by nitrogen; when the raw materials in the jacket are added into the reaction kettle body, the interior of the reaction kettle body is vacuumized, negative pressure is kept, a feed port of the jacket is filled with nitrogen, normal pressure or positive pressure is kept, and the raw materials in the jacket enter the reaction kettle body from the feed port.

During production and synthesis, the reaction temperature range is 120 ℃ to 145 ℃, and the negative pressure in the reaction kettle is more than-0.09 MPa; the temperature is less than 80 ℃ during packaging, and preferably 60 ℃ to 70 ℃.

Example 13

The organosilicon sealant is 107 glue, the raw material is α, omega-dihydroxy polysiloxane, the filler comprises white carbon black or calcium carbonate, when the raw material in the jacket 20 is added into the reaction kettle body 10, the reaction kettle body 10 is vacuumized, negative pressure is kept, the jacket material opening 21 is filled with nitrogen, normal pressure or positive pressure is kept, the raw material in the jacket enters the reaction kettle body 10 from the material opening 22, the reaction temperature ranges from 170 ℃ to 190 ℃ during production and synthesis, the negative pressure in the reaction kettle is above-0.09 MPa, and the temperature is less than 90 ℃ and preferably ranges from 60 ℃ to 75 ℃ during packaging.

Comparative example 1

The organosilicon silicone structural sealant produced by the method of specific example 2 and the process of specific example 12 has a reaction raw material preheated by a jacket and a temperature of about 80 ℃, and is heated to a rated temperature for about 90 minutes by an electric heating method after entering a reaction kettle body;

the organosilicon silicone structural sealant is produced by adopting a reaction kettle with a traditional structure and a traditional mode, and after reaction raw materials enter a reaction kettle body at a normal temperature, the reaction raw materials are heated to a rated temperature in an electric heating mode for about 180 minutes;

and compared with the reaction kettle with the traditional structure and the traditional production mode, the energy consumption is saved by about 48 percent.

Comparative example 2

The organosilicon 107 sealant produced by the method of specific example 2 and the process of specific example 13, wherein the temperature of the reaction raw material is about 105 ℃ after being preheated by the jacket, and the reaction raw material is heated to the rated temperature for about 100 minutes by adopting an electric heating mode after entering the reaction kettle body;

the organosilicon 107 sealant is produced by adopting a reaction kettle with a traditional structure and a traditional mode, and after reaction raw materials enter a reaction kettle body at a normal temperature, the reaction raw materials are heated to a rated temperature in an electric heating mode for about 220 minutes;

and compared with the reaction kettle with the traditional structure and the traditional production mode, the energy consumption is saved by about 50 percent.

Comparative example 3

The organosilicon silicone structural sealant produced by the method of specific example 4 and the process of specific example 12 has a reaction raw material preheated by a jacket and a temperature of about 85 ℃, and is heated to a rated temperature for about 80 minutes by an electric heating method after entering a reaction kettle body;

and compared with the reaction kettle with the traditional structure and the traditional production mode, the energy consumption is saved by about 54 percent.

Comparative example 4

The organosilicon 107 sealant produced by the method of specific example 4 and the process of specific example 13, wherein the temperature of the reaction raw material is about 110 ℃ after being preheated by the jacket, and the reaction raw material is heated to the rated temperature for about 90 minutes by adopting an electric heating mode after entering the reaction kettle body;

and compared with the reaction kettle with the traditional structure and the traditional production mode, the energy consumption is saved by about 60 percent.

Comparative example 5

The organosilicon silicone structural sealant produced by the method of specific example 6 and the process of specific example 12 has a reaction raw material preheated by a jacket and a temperature of about 90 ℃, and is heated to a rated temperature for about 70 minutes by an electric heating method after entering a reaction kettle body;

and compared with a reaction kettle with a traditional structure and a traditional production mode, the energy consumption is saved by about 63%.

Comparative example 6

The organosilicon 107 sealant produced by the method of specific example 6 and the process of specific example 13, wherein the temperature of the reaction raw material is about 115 ℃ after being preheated by the jacket, and the reaction raw material is heated to the rated temperature for about 80 minutes by adopting an electric heating mode after entering the reaction kettle body;

and compared with the reaction kettle with the traditional structure and the traditional production mode, the energy consumption is saved by about 65 percent.

Comparative example 7

The organosilicon silicone structural sealant produced by the method of specific example 8 and the process of specific example 12 has a reaction raw material preheated by a jacket and a temperature of about 87 ℃, and is heated to a rated temperature for about 80 minutes by an electric heating method after entering a reaction kettle body;

adopting a reaction kettle with a traditional structure and a traditional mode to produce the organosilicon silicone structural sealant, wherein after reaction raw materials enter a reaction kettle body at a normal temperature state, an electric heating mode is adopted, and the time for heating to a rated temperature is about 150 minutes;

and compared with the reaction kettle with the traditional structure and the traditional production mode, the energy consumption is saved by about 56 percent.

Comparative example 8

The organosilicon 107 sealant produced by the method of specific example 8 and the process of specific example 13, wherein the temperature of the reaction raw material is about 112 ℃ after being preheated by the jacket, and the reaction raw material is heated to the rated temperature for about 90 minutes by adopting an electric heating mode after entering the reaction kettle body;

and compared with a reaction kettle with a traditional structure and a traditional production mode, the energy consumption is saved by about 62%.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The organosilicon sealant production system is characterized by comprising a reaction kettle, wherein the reaction kettle is of a closed structure and comprises three layers, the innermost layer is a reaction kettle body, the middle layer is a jacket, the outermost layer is a heat insulation layer, the reaction kettle body is provided with a feeding hole and a discharging hole, and the reaction kettle body is also provided with a vacuumizing hole and a nitrogen charging hole; the reaction kettle jacket is internally provided with a metal guide plate, the guide plate is connected to the reaction kettle body for heat conduction, the guide plates are arranged in the jacket in a criss-cross mode, and the reaction kettle jacket is further provided with a feeding hole and a discharging hole.

2. An organosilicon sealant production system is characterized by comprising a storage tank and a reaction kettle; the storage tank is closed and is provided with a jacket structure, and the jacket is provided with a feed inlet and a discharge outlet; the guide plates are arranged in the jacket in a criss-cross manner and used for guiding the flowing state of materials in the jacket, the guide plates are made of metal materials and are connected to the storage tank body for heat conduction, and the heat insulation layer is arranged outside the jacket; the reaction kettle is closed and is provided with a heating device, a vacuumizing device and a nitrogen filling device; the feed inlet of holding vessel is connected to the reation kettle discharge gate, the cover feed inlet that presss from both sides of holding vessel connects the reaction mass, and the cover export that presss from both sides of holding vessel connects the reation kettle feed inlet.

3. The silicone sealant production system according to claim 2, further comprising a storage tank, wherein the two storage tanks have the same connection structure with the reaction kettle, and control valves are respectively disposed on pipelines connecting the two storage tanks with the reaction kettle.

4. The organosilicon sealant production system is characterized by comprising N reaction kettles, wherein N is an integer greater than or equal to 2, and the first reaction kettle, the second reaction kettle and the Nth reaction kettle have the same or similar structures; the reaction kettle is of a closed structure and comprises three layers, wherein the innermost layer is a reaction kettle body, the middle layer is a jacket, and the outermost layer is a heat insulation layer;

the reaction kettle jacket is also internally provided with guide plates which are arranged in the jacket in a criss-cross manner and used for guiding the flowing state of materials in the jacket, and the guide plates are made of metal materials and are connected to the storage tank body for heat conduction;

a feed inlet of the first reaction kettle jacket is connected with reaction raw materials, and a discharge outlet of the first reaction kettle jacket is connected with a feed inlet of the second reaction kettle body;

a feed inlet of the second reaction kettle jacket is connected with reaction raw materials, and a discharge outlet of the second reaction kettle jacket is connected with a feed inlet of the first reaction kettle body;

are connected in sequence in this way;

the feed inlet that the Nth reation kettle pressed from both sides the cover is connected the reaction raw materials, and the feed inlet of first reation kettle body is connected to the discharge gate that the Nth reation kettle pressed from both sides the cover.

5. The silicone sealant production system according to any one of claims 1 to 4, wherein the insulation layer is in particular insulation cotton or asbestos gauze or a vacuum insulation layer.