CN115501833A - Reation kettle is used in production of bisphenol A type epoxy - Google Patents
Reation kettle is used in production of bisphenol A type epoxy Download PDFInfo
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- CN115501833A CN115501833A CN202211159060.9A CN202211159060A CN115501833A CN 115501833 A CN115501833 A CN 115501833A CN 202211159060 A CN202211159060 A CN 202211159060A CN 115501833 A CN115501833 A CN 115501833A
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- kettle body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
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Abstract
The invention belongs to the technical field of resin production equipment, and particularly relates to a reaction kettle for producing bisphenol A epoxy resin, which comprises a kettle body, a kettle cover, a bracket, a stirring shaft, stirring blades, a first motor and a peristaltic pump, wherein the kettle cover is arranged on the kettle body; according to the invention, the stirring blades rotate to drive the raw materials to move so as to form flowing circulation rotating around the axis in the radial direction, and meanwhile, the raw materials in the peristaltic pump kettle body form flowing circulation in the axis direction, so that the flowing circulation in two directions is compounded to mix the raw materials in the kettle body, the phenomenon that the reaction materials are integrally rotated due to the increase of the viscosity of the reaction materials is avoided, the condition that the reaction materials are not mixed due to integral rotation is further avoided, the effective dispersive mixing of the reaction materials is further ensured, the mixing uniformity of the materials is further improved, the reaction uniformity is further ensured, and the quality of the epoxy acrylate resin is further improved.
Description
Technical Field
The invention belongs to the technical field of resin production equipment, and particularly relates to a reaction kettle for producing bisphenol A epoxy resin.
Background
The epoxy acrylate resin is prepared by esterification reaction of bisphenol A epoxy resin and acrylic acid or methacrylic acid, is a photocuring oligomer which is most widely applied and used at present, has the fastest photocuring speed among various oligomers, has the characteristics of high hardness, good glossiness, excellent corrosion resistance, heat resistance, excellent electrochemistry and the like after being cured, is wide in raw material source, low in price and simple in synthesis process, and is one of the most photosensitive resins used in the photocuring coating.
Epoxy acrylate resin production is esterification reaction in reation kettle, because bisphenol A type epoxy is a oligomer, the viscosity of reactant is along with the going on of reaction among the reaction process, be the trend of constantly increasing, and then make the interior frictional resistance increase of reactant intermolecular relative motion in the reation kettle, because reation kettle's inner wall frictional resistance is less, and then take place the whole gyration of reactant in the reation kettle easily, and then the dispersion and the mixture of reactant have been reduced, and then cause the homogeneity, and then influence going on of esterification reaction, and then cause the reaction product epoxy acrylate resin homogeneity poor, influence product quality.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a reaction kettle for producing bisphenol A epoxy resin. The invention is mainly used for solving the problem of poor uniformity of reactants during stirring, dispersing and mixing due to the fact that the viscosity of the reactants is increased along with the reaction in the esterification reaction of the existing reaction kettle.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention provides a reaction kettle for producing bisphenol A epoxy resin, which comprises a kettle body, a kettle cover, a bracket, a stirring shaft, stirring blades, a first motor and a peristaltic pump, wherein the kettle body is provided with a stirring shaft; the bottom of the kettle body is fixedly connected to the bracket; the upper side of the kettle body is fixedly connected with the kettle cover; the kettle cover is rotatably connected with the stirring shaft; the stirring shaft penetrates through the kettle cover; the stirring shaft is positioned at one end of the kettle body and is provided with the stirring blades at equal intervals along the circumferential direction; the other end of the stirring shaft is fixedly connected to the first motor through a coupler; the first motor is fixedly connected to the kettle cover through a connecting support; an installation cavity penetrating through the kettle body is formed in the side wall of the kettle body, close to the bottom of the kettle body; the peristaltic pump is arranged in the mounting cavity; the peristaltic pump is fixedly connected to the inner wall of the installation cavity; a circulating channel is formed between the installation cavity and the bottom of the kettle body; a liquid inlet of the peristaltic pump is positioned on one side of the bottom of the kettle body and is communicated with the circulating channel through an adapter; a counter bore is formed in the end face of one end, located in the kettle body, of the stirring shaft; one end of the stirring shaft, which is positioned in the kettle body, is rotatably connected to the side wall of the installation cavity; a liquid outlet of the peristaltic pump is communicated with the counter bore through the adapter; the stirring blade is of a hollow structure and is communicated with the counter bore; and the stirring blades are uniformly provided with discharge holes at intervals.
When the reactor works, when bisphenol A epoxy resin is modified by using acrylic acid to prepare epoxy acrylate resin, the acrylic acid, the bisphenol A epoxy resin and other raw materials are added into a reactor body through a feed inlet on a reactor cover, a motor is started, the motor drives a stirring shaft to rotate, the stirring shaft drives stirring blades to move, the stirring blades rotate to drive the raw materials to move to form a flow circulation rotating around an axis in the radial direction, a peristaltic pump is started simultaneously, and the peristaltic pump works to enable the raw materials at the bottom of the reactor body to flow through a liquid inlet and a liquid outlet of the peristaltic pump and then to be discharged from a discharge hole, so that the raw materials in the reactor body form a flow circulation in the axis direction, the raw materials in the reactor body are mixed through the flow circulation in two directions, the temperature in the reactor is controlled in the process, reactants in the raw materials are reacted to generate the epoxy acrylate resin, the viscosity of the reactants is increased along with the progress of the reaction in the reaction process, the raw materials are mixed through the cooperation of the pump and the stirring blades, the integral rotary viscosity of the reactants is prevented from increasing, and the uniformity of the reactants is further, and the dispersion of the epoxy acrylate resin is guaranteed, so that the dispersion of the reactants is not effectively improved; the peristaltic pump is arranged in the middle of the kettle body, when the peristaltic pump works, raw materials near the side wall of the kettle body flow to the bottom of the kettle body, and materials discharged from the middle of the kettle body flow to the side wall of the kettle body, so that the upper layer and the lower layer of reaction materials are dispersedly mixed with the middle and the outside, the flow of the reaction materials is improved, uneven mixing caused by poor fluidity due to the increase of the viscosity of the reaction materials is avoided, meanwhile, the temperature transfer among the reaction materials is facilitated, and the reaction is facilitated; because the peristaltic pump is when carrying out the reaction material circulation, not contact with reaction material itself, and then can not cause the pollution to reaction material, avoid reducing the quality of epoxy acrylate resin, simultaneously at the reactant in-process through the peristaltic pump, also can mix in the peristaltic pump, improve the homogeneity of mixing.
Preferably, the peristaltic pump comprises a second motor, a pump shell, a rotor, a pump pipe and a connecting pipe; a rotor is arranged in the pump shell; the rotor is rotationally connected to the pump shell; one end of the rotor penetrates through the pump shell to be connected with a rotating shaft of the second motor; the mounting seat of the second motor is fixedly connected to the pump shell; the pump pipes are symmetrically arranged between the pump shell and the rotor; the pump pipes are uniformly arranged at intervals along the axial direction of the rotor; the rotor extrudes the pump pipe; one end of the pump pipe on one side, which is close to the liquid outlet of the peristaltic pump, is communicated with one end, which is close to the liquid inlet of the peristaltic pump, of the pump pipe on the symmetrical side through a connecting pipe, and the liquid outlet of the peristaltic pump is communicated with the liquid outlet of the peristaltic pump; one end of the pump pipe on one side, which is close to the liquid inlet of the peristaltic pump, is communicated with one end, which is close to the liquid outlet of the peristaltic pump, of the pump pipe on the symmetrical side through a connecting pipe, and the liquid inlet of the peristaltic pump is communicated with the liquid outlet of the peristaltic pump.
When the peristaltic pump works, the second motor is started, the second motor drives the rotor to rotate, the rotating roller on the rotor extrudes the pump pipe, so that the pump pipe is deformed, the inner wall of the pump pipe is attached under the action of the rotating roller, and along with the movement of the rotating roller, reaction materials in the pump pipe are further enabled to be in a sunk hole from the liquid outlet; because the pump pipes are symmetrically arranged and are uniformly arranged at intervals in the axial direction of the rotor, the flow of the peristaltic pump is increased, the circulating flow speed of reactants in the kettle body is increased, the mixing speed of the reactants in the kettle body is increased, the mixing uniformity is improved, the mixing speed is increased, and the reaction between materials is facilitated; because the reactant passes through the plurality of pump pipes when passing through the peristaltic pump, the mixture is firstly separated and then converged in the peristaltic pump, and further the mixture is dispersed and mixed, so that the mixing uniformity of the reactant is improved, and the quality of the product is improved.
Preferably, the pump pipe is made of a silica gel material; an elastic braided tube is arranged in the pump tube; the distance between the surface of the elastic braided tube and the outer wall of the pump tube is smaller than the distance between the surface of the elastic braided tube and the inner wall of the pump tube.
When the device works, the viscosity of the reaction materials in the kettle body is continuously increased, so that the fluidity of the reaction materials is reduced, the elasticity for pumping the reaction materials into the pump pipe after the extrusion of the pump pipe is correspondingly increased, the self elasticity of the pump pipe made of silica gel is difficult to meet, and the mixing of the reaction materials is influenced; therefore, the elastic braided tube is arranged in the pump tube, so that the elastic recovery capability of the pump tube is increased, the sufficient elastic recovery is ensured after the rotor extrudes the pump tube to suck the reaction materials into the pump tube, the stable work of the peristaltic pump in the whole reaction process is ensured, the mixing of reactants is ensured, and the mixing uniformity is improved; because the inner wall of the pump pipe is tightly attached under the action of the rotor, the pump pipe can be flattened, and the elastic braided pipe can be folded and extruded, so that the distance from the surface of the elastic braided pipe to the outer wall of the pump pipe is smaller than the distance from the surface of the elastic braided pipe to the inner wall of the pump pipe, when the elastic braided pipe is extruded, the arc at the folding part is excessive, the elastic braided pipe is prevented from being broken due to folding and extrusion, and the service life of the pump pipe is prolonged; the distance is reserved between warp and weft threads in the weaving process of the elastic weaving tube, so that the connection of silicon inside and outside the elastic weaving tube is ensured, and the inner layer cannot be recovered along with the layering is avoided.
Preferably, the elastic braided tube is made of spring steel.
When the peristaltic pump works, the pump pipe needs to be bent and folded repeatedly in the working process of the peristaltic pump, and the bent and folded part can be broken due to fatigue, so that the elastic braided pipe is made of spring steel; the elastic braided tube can be made by braiding narrow strip-shaped spring steel sheets or spring steel wires.
Preferably, the inner wall of the kettle body is uniformly provided with blocking rods at intervals; one end of the blocking rod is fixedly connected to the side wall of the kettle body; the end face, close to the side wall of the kettle body, of the stirring blade is provided with a driving rod corresponding to the blocking rod; one end of the driving rod is fixedly connected to the stirring blade; the free ends of the driving rod and the blocking rod are provided with magnets; the stop rod with the actuating lever all uses the spring to pour one deck elastic silica gel as the skeleton and makes.
When the reaction kettle works, because the surface friction resistance of the inner wall of the kettle body is small, the viscosity of reactants is increased along with the reaction, and when the internal friction resistance of the molecules of the reactants moving relatively before is larger than the friction resistance between the molecules of the reactants and the inner wall of the kettle body, the reactants can rotate along with the stirring blades, so that the reactants in the kettle body integrally rotate, the mixing is influenced, and the uniformity of the reactants is poor; therefore, the barrier rod is arranged on the inner wall of the kettle body, so that the frictional resistance between the reaction materials and the kettle body is increased, the integral rotation of the reactants is avoided, the dispersive mixing of the reaction materials is improved, the uniformity of the viscosity of the reaction products is improved, and the quality of the products is improved; because the viscosity of the reaction materials is increased during the reaction, if the reaction material part is supposed to rotate integrally, the frictional resistance between the side wall of the kettle body and the reactants is required to be increased, meanwhile, the stirring speed of the reaction kettle is required to be increased, so that the turbulence degree of the reaction materials is increased, the dispersion and mixing of the reaction materials are accelerated, and therefore, along with the increase of the rotating speed of the stirring blades, under the action of centrifugal force, the magnets on the driving rod move outwards, so that the two magnets attract each other to approach each other, and further, the driving rod is stretched, so that the frictional resistance between the side wall of the kettle body and the reactants is increased, the integral rotation is avoided, and meanwhile, due to the extension of the driving rod and the blocking rod, the sweeping range during the stirring is increased, the turbulence degree of the reactants is increased, the dispersion and mixing degree of the reactants is improved, the uniformity of mixing is improved, the uniformity of the viscosity of the reaction products is improved, and the quality of the products is improved; because the barrier rod is the even interval setting, rotatory in-process is that the inter attraction between the magnet is interrupted, consequently disappears the back when the attraction between the magnet, under the spring action of spring, draws the withdrawal of pulling magnet, and then the cluster moves, further disperses the mixture to reaction mass, has further improved the even degree of mixing, has improved the quality of reaction product.
Preferably, the magnet on the driving rod is an electromagnet.
When the stirring speed is increased to the maximum during working, the extension of the driving rod and the blocking rod reaches the maximum, and at the moment, the resistance of the side wall of the kettle body cannot be increased, so that the risk of integral rotation caused by the continuous increase of viscosity is avoided; consequently through setting up magnet on the actuating lever into the electro-magnet, when stirring speed reached the biggest, can increase the appeal through the electric current of adjusting the electro-magnet, and then realize continuing to carry out length adjustment to blockking the pole, and then adjust the resistance between cauldron body lateral wall and the reaction mass, and then increased reation kettle application's scope, can prepare the product of different viscosity requirements.
Preferably, the placing cavity is positioned on the inner side wall of the kettle body and is provided with stirring bulges on the inner wall of the bottom of the kettle body; the stirring bulges are evenly arranged in a staggered mode at intervals.
During operation, the internal chamber separation of placing of cauldron for circulation channel department has the stirring dead angle, cause the reaction material to mix unevenly easily, consequently protruding through setting up the stirring, and then when reaction material flows through circulation channel, the bellied stopping of stirring again separates to both sides down, with the next door separately to mixing, hit after next stirring arch again and separate the mixture, and then realize mixing the reaction material through circulation channel, and then avoid appearing mixing the dead angle, and then improved the homogeneity of mixing, the quality of result has been improved.
The invention has the following beneficial effects:
1. when the epoxy acrylate resin is prepared by modifying bisphenol A epoxy resin with acrylic acid, raw materials such as acrylic acid and bisphenol A epoxy resin are added into a kettle body through a feed inlet on a kettle cover, a motor is started, the motor drives a stirring shaft to rotate, the stirring shaft drives a stirring blade to move, the stirring blade rotates to drive the raw materials to move to form a flow circulation rotating around an axis in a radial direction, a peristaltic pump is started simultaneously, and the peristaltic pump works to enable the raw materials at the bottom of the kettle body to flow through a liquid inlet and a liquid outlet of the peristaltic pump and then to be discharged from a discharge hole, so that the raw materials in the kettle body form the flow circulation in the axis direction, the raw materials in the kettle body are mixed through the combination of the flow circulation in two directions, the temperature in the reaction kettle is controlled in the process, reactants in the raw materials are reacted, the epoxy acrylate resin is generated, the viscosity of the reactants is increased along with the progress of the reaction in the reaction process, the raw materials are mixed through the cooperation of the peristaltic pump and the stirring blade, the integral rotation of the reactants is avoided, and the uniformity of the reactants is further improved, so that the quality of the mixture is effectively improved; the peristaltic pump is arranged in the middle of the kettle body, when the peristaltic pump works, raw materials near the side wall of the kettle body flow to the bottom of the kettle body, and materials discharged from the middle of the kettle body flow to the side wall of the kettle body, so that the upper layer and the lower layer of reaction materials are dispersedly mixed with the middle and the outside, the flow of the reaction materials is improved, uneven mixing caused by poor fluidity due to the increase of the viscosity of the reaction materials is avoided, meanwhile, the temperature transfer among the reaction materials is facilitated, and the reaction is facilitated; because the peristaltic pump is when carrying out the reaction material circulation, not contact with reaction material itself, and then can not cause the pollution to reaction material, avoid reducing the quality of epoxy acrylate resin, simultaneously at the reactant in-process through the peristaltic pump, also can mix in the peristaltic pump, improve the homogeneity of mixing.
2. When the peristaltic pump works, the second motor is started, the second motor drives the rotor to rotate, the rotating roller on the rotor extrudes the pump pipe, so that the pump pipe deforms, the inner wall of the pump pipe is attached under the action of the rotating roller, and along with the movement of the rotating roller, reaction materials in the pump pipe are further sunk from the liquid outlet; because the pump pipes are symmetrically arranged and are uniformly arranged at intervals in the axial direction of the rotor, the flow of the peristaltic pump is increased, the circulating flow speed of reactants in the kettle body is increased, the mixing speed of the reactants in the kettle body is increased, the mixing uniformity is improved, the mixing speed is increased, and the reaction between materials is facilitated; because the reactant passes through the plurality of pump pipes when passing through the peristaltic pump, the mixture is separated and then gathered in the peristaltic pump, and further the mixture is dispersed and mixed, so that the mixing uniformity of the reactant is improved, and the quality of the product is improved.
3. According to the invention, the viscosity of the reaction materials in the kettle body is increased continuously, so that the fluidity of the reaction materials is reduced, the elasticity for pumping the reaction materials into the pump pipe after the extrusion of the pump pipe is correspondingly increased, and the pump pipe made of silica gel is difficult to meet the requirement of the elasticity of the pump pipe, so that the mixing of the reaction materials is influenced; therefore, the elastic braided tube is arranged in the pump tube, so that the elastic recovery capability of the pump tube is increased, the sufficient elastic recovery is ensured after the rotor extrudes the pump tube to suck the reaction materials into the pump tube, the stable work of the peristaltic pump in the whole reaction process is ensured, the mixing of reactants is ensured, and the mixing uniformity is improved; because the inner wall of the pump pipe is tightly attached under the action of the rotor, the pump pipe can be flattened, and the elastic braided pipe can be folded and extruded, so that the distance from the surface of the elastic braided pipe to the outer wall of the pump pipe is smaller than the distance from the surface of the elastic braided pipe to the inner wall of the pump pipe, when the elastic braided pipe is extruded, the arc at the folding part is excessive, the elastic braided pipe is prevented from being broken due to folding and extrusion, and the service life of the pump pipe is prolonged; the distance is reserved between warp and weft threads in the weaving process of the elastic weaving tube, so that the connection of silicon inside and outside the elastic weaving tube is ensured, and the inner layer cannot be recovered along with the layering is avoided.
4. In the invention, because the friction resistance of the surface of the inner wall of the kettle body is small, the viscosity of the reactant is increased along with the reaction, when the internal friction resistance of the relative movement of the molecules of the reactant before is larger than the friction resistance between the molecules of the reactant and the inner wall of the kettle body, the reactant rotates along with the action of the stirring blade, and the integral rotation of the reactant in the kettle body is further caused, so that the mixing is influenced, and the uniformity of the reactant is poor; therefore, the barrier rod is arranged on the inner wall of the kettle body, so that the frictional resistance between the reaction materials and the kettle body is increased, the integral rotation of the reactants is avoided, the dispersive mixing of the reaction materials is improved, the uniformity of the viscosity of the reaction products is improved, and the quality of the products is improved; because the viscosity of the reaction materials is increased during the reaction, if the reaction material part is supposed to rotate integrally, the friction resistance between the side wall of the kettle body and the reactants is required to be increased, meanwhile, the stirring speed of the reaction kettle is required to be increased, so that the turbulence degree of the reaction materials is increased, the dispersion and mixing of the reaction materials are accelerated, and therefore, as the rotating speed of the stirring blade is increased, and further, under the action of centrifugal force, the magnets on the driving rod move outwards, so that the two magnets attract each other to be close to each other, so that the driving rod is stretched, the friction resistance between the side wall of the kettle body and the reactants is increased, the integral rotation is avoided, and meanwhile, due to the extension of the driving rod and the blocking rod, the range swept during the stirring is increased, so that the turbulence degree of the reactants is increased, the dispersion and mixing degree of the reactants is improved, the uniformity of the mixing is improved, the uniformity of the viscosity of the reaction products is improved, and the quality of the products is improved; because the stop lever is even interval setting, rotatory in-process is that the inter attraction between the magnet is interrupted, consequently after the appeal between the magnet disappears, under the spring action of spring, draws and draws magnet withdrawal, and then the cluster moves, further disperses the mixture to reaction product, has further improved the even degree of mixing, has improved the quality of reaction product.
5. When the stirring speed is increased to the maximum, the extension of the driving rod and the blocking rod reaches the maximum, and at the moment, the resistance of the side wall of the kettle body cannot be increased, so that the risk of integral rotation caused by the continuous increase of viscosity is avoided; consequently through setting up magnet on the actuating lever into the electro-magnet, when stirring speed reached the biggest, can increase the appeal through the electric current of adjusting the electro-magnet, and then realize continuing to carry out length adjustment to blockking the pole, and then adjust the resistance between cauldron body lateral wall and the reaction mass, and then increased reation kettle application's scope, can prepare the product of different viscosity requirements.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a schematic view of the overall structure of a reaction vessel in accordance with the present invention;
FIG. 2 is a schematic view of the internal structure of a reaction vessel in the present invention;
FIG. 3 is a front view of a reaction vessel in the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic view of the pump tube of the present invention as it is collapsed;
FIG. 6 is a schematic view of an elastic braided tube of the present invention;
FIG. 7 is a schematic view of the construction of the peristaltic pump of the present invention;
in the figure: the device comprises a kettle body 1, an installation cavity 11, a circulation channel 111, a kettle cover 2, a support 21, a stirring shaft 3, a stirring blade 31, a counter bore 32, a first motor 4, a peristaltic pump 5, a second motor 51, a pump shell 52, a rotor 53, a pump pipe 54, an elastic braided pipe 541, a connecting pipe 55, a blocking rod 6, a driving rod 7, a magnet 8 and a stirring bulge 9.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7, a reaction kettle for producing bisphenol a epoxy resin comprises a kettle body 1, a kettle cover 2, a bracket 21, a stirring shaft 3, a stirring blade 31, a first motor 4 and a peristaltic pump 5; the bottom of the kettle body 1 is fixedly connected to the bracket 21; the upper side of the kettle body 1 is fixedly connected with the kettle cover 2; the kettle cover 2 is rotatably connected with the stirring shaft 3; the stirring shaft 3 penetrates through the kettle cover 2; the stirring shaft 3 is positioned at one end of the kettle body 1, and the stirring blades 31 are uniformly arranged at intervals along the circumferential direction; the other end of the stirring shaft 3 is fixedly connected to the first motor 4 through a coupler; the first motor 4 is fixedly connected to the kettle cover 2 through a connecting support; the side wall of the kettle body 1 is provided with an installation cavity 11 penetrating through the kettle body 1 near the bottom of the kettle body 1; the peristaltic pump 5 is arranged in the mounting cavity 11; the peristaltic pump 5 is fixedly connected to the inner wall of the mounting cavity 11; a circulating channel 111 is formed between the installation cavity 11 and the bottom of the kettle body 1; a liquid inlet of the peristaltic pump 5 is positioned on one side of the bottom of the kettle body 1 and is communicated with the circulating channel 111 through an adapter; a counter bore 32 is formed in the end face of the stirring shaft 3, which is positioned in the kettle body 1, at one end; one end of the stirring shaft 3, which is positioned in the kettle body 1, is rotatably connected to the side wall of the installation cavity 11; a liquid outlet of the peristaltic pump 5 is communicated with the counter bore 32 through an adapter; the stirring blade 31 is of a hollow structure and is communicated with the counter bore 32; the stirring blades 31 are provided with discharge holes at uniform intervals.
When the device works, when the acrylic acid is used for modifying bisphenol A epoxy resin to prepare epoxy acrylate resin, the raw materials such as the acrylic acid, the bisphenol A epoxy resin and the like are added into the kettle body 1 through the feed inlet on the kettle cover 2, the first motor 4 is started, the first motor 4 drives the stirring shaft 3 to rotate, the stirring shaft 3 drives the stirring blade 31 to move, the stirring blade 31 rotates to drive the raw materials to move to form flow circulation rotating around the axis in the radial direction, the peristaltic pump 5 is started at the same time, the peristaltic pump 5 works, the raw materials at the bottom of the kettle body 1 flow through the liquid inlet and the liquid outlet of the peristaltic pump 5, the counter bore 32 and the hollow structure of the stirring blade 31, and then the raw materials are discharged from the discharge hole to form flow circulation in the axis direction in the kettle body 1, the raw materials in the kettle body 1 are mixed by the flow circulation combination in two directions, the temperature in the reaction kettle is controlled in the process, so that the reactants in the raw materials react to generate epoxy acrylate resin, the viscosity of the reactants is increased along with the reaction in the reaction process, and the raw materials are mixed by the cooperation of the peristaltic pump 5 and the stirring blade 31, so that the phenomenon that the reaction materials integrally rotate due to the increase of the viscosity of the reaction materials is avoided, the phenomenon that the reactants are not mixed due to the integral rotation is avoided, the reactants can be effectively dispersed and mixed, the mixing uniformity among the materials is improved, the reaction uniformity is ensured, and the quality of the epoxy acrylate resin is improved; the peristaltic pump 5 is arranged in the middle of the kettle body 1, when the peristaltic pump 5 works, raw materials near the side wall of the kettle body 1 flow to the bottom of the kettle body 1, materials discharged from the middle of the kettle body 1 flow to the side wall of the kettle body 1, so that the upper layer and the lower layer of reaction materials are dispersedly mixed with the outside, the flow of the reaction materials is improved, uneven mixing caused by poor fluidity due to the increase of the viscosity of the reaction materials is avoided, meanwhile, the temperature transfer among the reaction materials is facilitated, and the reaction is facilitated; because peristaltic pump 5 is when carrying out the reaction material circulation, not contact with reaction material itself, and then can not cause the pollution to reaction material, avoid reducing epoxy acrylate resin's quality, simultaneously at the reactant in-process through peristaltic pump 5, also can mix in peristaltic pump 5, improve the homogeneity of mixing.
As shown in fig. 2, 3 and 7, the peristaltic pump 5 includes a second motor 51, a pump housing 52, a rotor 53, a pump tube 54 and a connecting tube 55; a rotor 53 is arranged in the pump shell 52; the rotor 53 is rotatably connected to the pump housing 52; one end of the rotor 53 penetrates through the pump shell 52 and is connected with a rotating shaft of the second motor 51; the mounting seat of the second motor 51 is fixedly connected to the pump shell 52; the pump pipes 54 are symmetrically arranged between the pump shell 52 and the rotor 53; the pump pipes 54 are arranged at regular intervals along the axial direction of the rotor 53; the rotor 53 presses the pump tube 54; one end of the pump tube 54 on one side, which is close to the liquid outlet of the peristaltic pump 5, is communicated with one end of the pump tube 54 on the symmetrical side, which is close to the liquid inlet of the peristaltic pump 5, through a connecting tube 55; one end of the pump pipe 54 on one side, which is close to the liquid inlet of the peristaltic pump 5, is communicated with one end of the pump pipe 54 on the symmetrical side, which is close to the liquid outlet of the peristaltic pump 5, through a connecting pipe 55, which is communicated with the liquid inlet of the peristaltic pump 5.
During operation, when the peristaltic pump 5 operates, the second motor 51 is started, the second motor 51 drives the rotor 53 to rotate, the rotating roller on the rotor 53 extrudes the pump pipe 54, so that the pump pipe 54 deforms, the inner wall of the pump pipe 54 is attached under the action of the rotating roller, and along with the movement of the rotating roller, reaction materials in the pump pipe 54 are further led into the counter bore 32 from a liquid outlet, and due to the elasticity of the pump pipe 54, the pump pipe 54 recovers to generate negative pressure under the elastic action of the pump pipe 54, mixed materials at the liquid inlet of the peristaltic pump 5 are sucked into the pump pipe 54, and then the mixed materials are conveyed; because the pump pipes 54 are symmetrically arranged and are uniformly arranged at intervals in the axial direction of the rotor 53, the flow of the peristaltic pump 5 is increased, the circulating flow speed of the reactants in the kettle body 1 is increased, the mixing uniformity is improved, the mixing speed is increased, and the reaction among materials is facilitated; because the reactant passes through the plurality of pump pipes 54 when passing through the peristaltic pump 5, the mixture is firstly separated and then converged in the peristaltic pump, and further the mixture is dispersed and mixed, so that the mixing uniformity of the reactant is improved, and the quality of the product is improved.
As shown in fig. 3 to 6, the pump tube 54 is made of a silicone material; an elastic braided tube 541 is arranged in the pump tube 54; the distance from the surface of the elastic braided tube 541 to the outer wall of the pump tube 54 is less than the distance from the surface of the elastic braided tube 541 to the inner wall of the pump tube 54.
When the reaction kettle works, the viscosity of the reaction materials in the kettle body 1 is increased continuously, so that the fluidity of the reaction materials is reduced, the elasticity for pumping the reaction materials into the pump pipe 54 after the reaction materials are extruded by the pump pipe 54 is correspondingly increased, the pump pipe 54 made of silica gel is difficult to meet the requirement of the elasticity of the pump pipe 54, and the mixing of the reaction materials is influenced; therefore, the elastic braided tube 541 is arranged in the pump tube 54, so that the elastic recovery capability of the pump tube 54 is increased, the sufficient elastic recovery is ensured after the rotor 53 extrudes the pump tube 54 to suck the reaction materials into the pump tube 54, the stable work of the peristaltic pump 5 in the whole reaction process is ensured, the mixing of reactants is ensured, and the uniformity of mixing is improved; because the inner wall of the pump tube 54 is tightly attached under the action of the rotor 53, the pump tube 54 is flattened, and the elastic braided tube 541 is folded and extruded, so that the distance from the surface of the elastic braided tube 541 to the outer wall of the pump tube 54 is less than the distance from the surface of the elastic braided tube 541 to the inner wall of the pump tube 54, when the elastic braided tube 541 is extruded, the arc at the folding position is excessive, and the elastic braided tube 541 is prevented from being broken due to folding and extrusion, and the service life of the pump tube 54 is prolonged; the elastic weaving tube 541 is provided with a space between the wefts in the weaving process, so that the connection of the inner silicon and the outer silicon of the elastic weaving tube 541 is ensured, and the inner layer is prevented from being recovered along with the layering.
The elastic braided tube 541 is made of spring steel.
When the peristaltic pump works, the pump pipe 54 needs to be repeatedly bent and folded in the working process of the peristaltic pump 5, and the bent and folded part can be broken due to fatigue, so that the elastic braided pipe 541 is made of spring steel, and the spring steel not only has good elasticity, but also has strong fatigue resistance, so that the elastic braided pipe 541 can be repeatedly bent and folded without fatigue breakage, the service life of the elastic braided pipe 541 is prolonged, the service life of the pump pipe 54 is prolonged, and the service life of the peristaltic pump 5 is prolonged; the elastic braided tube 541 can be made of narrow strip-shaped spring steel sheet or spring steel wire.
As shown in fig. 2 and 3, the inner wall of the kettle body 1 is uniformly provided with blocking rods 6 at intervals; one end of the blocking rod 6 is fixedly connected to the side wall of the kettle body 1; the end face of the stirring blade 31 close to the side wall of the kettle body 1 is provided with a driving rod 7 corresponding to the blocking rod 6; one end of the driving rod 7 is fixedly connected to the stirring blade 31; the free ends of the driving rod 7 and the blocking rod 6 are both provided with magnets 8; the blocking rod 6 and the driving rod 7 are made by pouring a layer of elastic silica gel by taking a spring as a framework.
When the reaction kettle works, because the friction resistance of the surface of the inner wall of the kettle body 1 is small, the viscosity of reactants is increased along with the reaction, when the internal friction resistance of the molecules of the reactants moving relatively before is larger than the friction resistance between the molecules of the reactants and the inner wall of the kettle body 1, the reactants can rotate along with the stirring blades 31, and then the reactants in the kettle body 1 integrally rotate to influence the mixing, so that the uniformity of the reactants is poor; therefore, the inner wall of the kettle body 1 is provided with the blocking rod 6, so that the frictional resistance between the reaction materials and the kettle body 1 is increased, the integral rotation of the reactants is avoided, the dispersive mixing of the reaction materials is improved, the uniformity of the viscosity of the reaction products is improved, and the quality of the products is improved; because the viscosity of the reaction materials is increased during the reaction, if the reaction material part is supposed to rotate integrally, the frictional resistance between the side wall of the kettle body 1 and the reactants is required to be increased, meanwhile, the stirring speed of the reaction kettle is required to be increased, further, the turbulence degree of the reaction materials is increased, and the dispersion and mixing of the reaction materials are accelerated, so that along with the increase of the rotating speed of the stirring blade 31, the magnet 8 on the driving rod 7 is moved outwards under the action of centrifugal force, further, the two magnets 8 are mutually attracted and are close to each other, further, the driving rod 7 is stretched, the frictional resistance between the side wall of the kettle body 1 and the reactants is increased, the integral rotation is avoided, meanwhile, due to the extension of the driving rod 7 and the blocking rod 6, the sweeping range during the stirring is increased, further, the turbulence degree of the reactants is increased, the dispersion and mixing degree of the reactants is increased, the uniformity of the mixing is improved, the uniformity of the viscosity of the reaction products is improved, and the quality of the products is improved; because the barrier rod 6 is the even interval setting, rotatory in-process is that the inter attraction between the magnet 8 is interrupted, consequently after the appeal between the magnet 8 disappears, under the spring action of spring, draws the withdrawal of pulling magnet 8, and then the cluster moves, further disperses the mixture to reaction mass, has further improved the even degree of mixing, has improved the quality of reaction product.
And the magnet 8 on the driving rod 7 is an electromagnet.
When the stirring speed is increased to the maximum during working, the extension of the driving rod 7 and the blocking rod 6 reaches the maximum, and at the moment, the resistance of the side wall of the kettle body 1 cannot be increased, so that the risk of integral rotation caused by the continuous increase of viscosity is avoided; consequently, set up to the electro-magnet through magnet 8 with on the actuating lever 7, when stirring speed reached the biggest, can increase the appeal through the electric current of adjusting the electro-magnet, and then realize continuing to carry out length adjustment to blocking rod 6, and then adjust the resistance between the 1 lateral wall of cauldron body and the reaction mass, and then increased reation kettle suitable scope, can prepare the product of different viscosity requirements.
As shown in fig. 2 and fig. 3, the placing cavity is provided with stirring protrusions 9 on the inner side wall of the kettle body 1 and on the inner wall of the bottom of the kettle body 1; the stirring bulges 9 are arranged in a staggered way at even intervals.
During operation, owing to place the chamber separation in the cauldron body 1, make circulation channel 111 department have the stirring dead angle, cause reaction material to mix unevenly easily, consequently through setting up stirring arch 9, and then reaction material is when flowing through circulation channel 111, stir protruding 9 again and block down both sides separately, with the next door separately to mixing, hit after next stirring arch 9 again and separate the mixture, and then realize mixing reaction material through circulation channel 111, and then avoid appearing mixing the dead angle, and then improved the homogeneity of mixing, the quality of product has been improved.
When the device works, when the acrylic acid is used for modifying bisphenol A epoxy resin to prepare epoxy acrylate resin, the raw materials such as the acrylic acid, the bisphenol A epoxy resin and the like are added into the kettle body 1 through the feed inlet on the kettle cover 2, the first motor 4 is started, the first motor 4 drives the stirring shaft 3 to rotate, the stirring shaft 3 drives the stirring blade 31 to move, the stirring blade 31 rotates to drive the raw materials to move to form flow circulation rotating around the axis in the radial direction, the peristaltic pump 5 is started at the same time, the peristaltic pump 5 works, the raw materials at the bottom of the kettle body 1 flow through the liquid inlet and the liquid outlet of the peristaltic pump 5, the counter bore 32 and the hollow structure of the stirring blade 31, and then the raw materials are discharged from the discharge hole to form flow circulation in the axis direction in the kettle body 1, the raw materials in the kettle body 1 are mixed by the flow circulation combination in two directions, the temperature in the reaction kettle is controlled in the process, so that the reactants in the raw materials react to generate epoxy acrylate resin, the viscosity of the reactants is increased along with the reaction in the reaction process, and the raw materials are mixed by the cooperation of the peristaltic pump 5 and the stirring blade 31, so that the phenomenon that the reaction materials integrally rotate due to the increase of the viscosity of the reaction materials is avoided, the phenomenon that the reactants are not mixed due to the integral rotation is avoided, the reactants can be effectively dispersed and mixed, the mixing uniformity among the materials is improved, the reaction uniformity is ensured, and the quality of the epoxy acrylate resin is improved; the peristaltic pump 5 is arranged in the middle of the kettle body 1, when the peristaltic pump 5 works, raw materials near the side wall of the kettle body 1 flow to the bottom of the kettle body 1, materials discharged from the middle of the kettle body 1 flow to the side wall of the kettle body 1, so that the upper layer and the lower layer of reaction materials are dispersedly mixed with the outside, the flow of the reaction materials is improved, uneven mixing caused by poor fluidity due to the increase of the viscosity of the reaction materials is avoided, meanwhile, the temperature transfer among the reaction materials is facilitated, and the reaction is facilitated; because peristaltic pump 5 is when carrying out the reaction material circulation, not contact with reaction material itself, and then can not cause the pollution to reaction material, avoid reducing epoxy acrylate resin's quality, simultaneously at the reactant in-process through peristaltic pump 5, also can mix in peristaltic pump 5, improve the homogeneity of mixing.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A reation kettle is used in production of bisphenol A type epoxy, its characterized in that: comprises a kettle body (1), a kettle cover (2), a bracket (21), a stirring shaft (3), a stirring blade (31), a first motor (4) and a peristaltic pump (5); the bottom of the kettle body (1) is fixedly connected to the bracket (21); the upper side of the kettle body (1) is fixedly connected with the kettle cover (2); the kettle cover (2) is rotatably connected with the stirring shaft (3); the stirring shaft (3) penetrates through the kettle cover (2); the stirring shaft (3) is positioned at one end of the kettle body (1) and is provided with the stirring blades (31) at intervals along the circumferential direction; the other end of the stirring shaft (3) is fixedly connected to the first motor (4) through a coupler; the first motor (4) is fixedly connected to the kettle cover (2) through a connecting support; the side wall of the kettle body (1) close to the bottom of the kettle body (1) is provided with an installation cavity (11) penetrating through the kettle body (1); the peristaltic pump (5) is arranged in the mounting cavity (11); the peristaltic pump (5) is fixedly connected to the inner wall of the mounting cavity (11); a circulating channel (111) is formed between the mounting cavity (11) and the bottom of the kettle body (1); a liquid inlet of the peristaltic pump (5) is positioned on one side of the bottom of the kettle body (1) and is communicated with the circulating channel (111) through an adapter; a counter bore (32) is formed in the end face of one end, located in the kettle body (1), of the stirring shaft (3); one end of the stirring shaft (3) positioned in the kettle body (1) is rotatably connected to the side wall of the mounting cavity (11); a liquid outlet of the peristaltic pump (5) is communicated with the counter bore (32) through an adapter; the stirring blade (31) is of a hollow structure and is communicated with the counter bore (32); and the stirring blades (31) are uniformly provided with discharge holes at intervals.
2. The reaction vessel for producing a bisphenol A-type epoxy resin according to claim 1, wherein: the peristaltic pump (5) comprises a second motor (51), a pump shell (52), a rotor (53), a pump pipe (54) and a connecting pipe (55); a rotor (53) is arranged in the pump shell (52); the rotor (53) is rotationally connected to the pump shell (52); one end of the rotor (53) penetrates through the pump shell (52) and is connected with a rotating shaft of the second motor (51); the mounting seat of the second motor (51) is fixedly connected to the pump shell (52); the pump pipes (54) are symmetrically arranged between the pump shell (52) and the rotor (53); the pump pipes (54) are uniformly arranged at intervals along the axial direction of the rotor (53); the rotor (53) pressing the pump tube (54); one end of the pump pipe (54) at one side, which is close to the liquid outlet of the peristaltic pump (5), is communicated with one end, which is close to the liquid inlet of the peristaltic pump (5), of the pump pipe (54) at the symmetrical side, which is communicated with the liquid outlet of the peristaltic pump (5) through a connecting pipe (55); one end, close to the liquid inlet of the peristaltic pump (5), of the pump pipe (54) on one side is communicated with one end, close to the liquid outlet of the peristaltic pump (5), of the pump pipe (54) on the symmetrical side through a connecting pipe (55) and the liquid inlet of the peristaltic pump (5).
3. The reaction vessel for producing a bisphenol A-type epoxy resin according to claim 2, wherein: the pump pipe (54) is made of a silica gel material; an elastic braided tube (541) is arranged in the pump tube (54); the distance between the surface of the elastic braided tube (541) and the outer wall of the pump tube (54) is less than the distance between the surface of the elastic braided tube (541) and the inner wall of the pump tube (54).
4. The reaction vessel for producing a bisphenol A-type epoxy resin according to claim 3, wherein: the elastic braided tube (541) is made of spring steel.
5. The reaction vessel for producing a bisphenol A-type epoxy resin according to claim 4, wherein: blocking rods (6) are uniformly arranged on the inner wall of the kettle body (1) at intervals; one end of the blocking rod (6) is fixedly connected to the side wall of the kettle body (1); the end face, close to the side wall of the kettle body (1), of the stirring blade (31) is provided with a driving rod (7) corresponding to the blocking rod (6); one end of the driving rod (7) is fixedly connected to the stirring blade (31); the free ends of the driving rod (7) and the blocking rod (6) are provided with magnets (8); the blocking rod (6) and the driving rod (7) are made by pouring a layer of elastic silica gel by taking the spring as a framework.
6. The reaction vessel for producing a bisphenol A-type epoxy resin according to claim 5, wherein: and the magnet (8) on the driving rod (7) is an electromagnet.
7. The reaction vessel for producing a bisphenol A-type epoxy resin according to claim 6, wherein: the placing cavity is positioned on the inner side wall of the kettle body (1) and is provided with stirring bulges (9) on the inner wall of the bottom of the kettle body (1); the stirring bulges (9) are uniformly arranged in a staggered way at intervals.
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| CN202211159060.9A CN115501833A (en) | 2022-09-22 | 2022-09-22 | Reation kettle is used in production of bisphenol A type epoxy |
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| CN202211159060.9A CN115501833A (en) | 2022-09-22 | 2022-09-22 | Reation kettle is used in production of bisphenol A type epoxy |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478557A (en) * | 2023-01-16 | 2023-07-25 | 双乐颜料股份有限公司 | Production of phthalocyanine blue 15:0 dilution method |
| CN116969562A (en) * | 2023-09-04 | 2023-10-31 | 海南鹏源水环境治理科技有限公司 | Sterilization device for sewage treatment |
| CN117323898A (en) * | 2023-12-01 | 2024-01-02 | 深圳市科拉达精细化工有限公司 | Raw material mixing device and method for producing polyacrylamide settling agent |
| CN117482820A (en) * | 2024-01-03 | 2024-02-02 | 山东吉隆达生物科技有限公司 | Stirring type mixing device for potassium magnesium sulfate additive feed production |
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2022
- 2022-09-22 CN CN202211159060.9A patent/CN115501833A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116478557A (en) * | 2023-01-16 | 2023-07-25 | 双乐颜料股份有限公司 | Production of phthalocyanine blue 15:0 dilution method |
| CN116969562A (en) * | 2023-09-04 | 2023-10-31 | 海南鹏源水环境治理科技有限公司 | Sterilization device for sewage treatment |
| CN117323898A (en) * | 2023-12-01 | 2024-01-02 | 深圳市科拉达精细化工有限公司 | Raw material mixing device and method for producing polyacrylamide settling agent |
| CN117323898B (en) * | 2023-12-01 | 2024-02-27 | 深圳市科拉达精细化工有限公司 | Raw material mixing device and method for producing polyacrylamide settling agent |
| CN117482820A (en) * | 2024-01-03 | 2024-02-02 | 山东吉隆达生物科技有限公司 | Stirring type mixing device for potassium magnesium sulfate additive feed production |
| CN117482820B (en) * | 2024-01-03 | 2024-04-30 | 山东吉隆达生物科技有限公司 | Stirring type mixing device for potassium magnesium sulfate additive feed production |
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