A paste glue production reaction kettle

Abstract

The present application belongs to the technical field of adhesive production equipment, and discloses a reaction kettle for paste adhesive production, which comprises a reaction kettle and a crushing assembly arranged in the reaction kettle, and the crushing assembly comprises: a crushing chamber arranged in the reaction kettle and communicated with a feeding port of the reaction kettle; a discharge hole arranged at the bottom of the crushing chamber; a crushing shaft, one end of which penetrates through a top cover of the reaction kettle and is connected with a driving source; a free end of the crushing shaft penetrates through the crushing chamber and is rotationally connected with the top of the reaction kettle; and a cyclone vane arranged in the crushing chamber and coaxially fixedly connected with the crushing shaft; according to the present application, the raw materials are first fed into the crushing chamber from the feeding port, the crushing shaft drives the cyclone vane to rotate in the crushing chamber, the raw materials are sheared to break the agglomerates into powder, and the problem of agglomeration of raw materials in the preparation of the existing reaction kettle for acrylic ester paste adhesive is solved.

Description

TECHNICAL FIELD

[0001] The scheme belongs to the technical field of adhesive production equipment, and particularly relates to a reaction kettle for paste adhesive production. BACKGROUND

[0002] The paste adhesive is a kind of adhesive with paste shape and viscosity, which has thick texture and low flowability, can keep stable form at normal temperature, and can be uniformly attached to the surface of paper, wood, fabric and other various adherends by means of smearing, scraping, rolling and the like, and realizes reliable bonding between materials by means of intermolecular adhesion and cohesion.

[0003] The paste adhesive can be divided into natural polymer type, synthetic polymer type and mixed type according to components, wherein the synthetic polymer type paste adhesive is widely applied and contains multiple important systems: the epoxy system takes epoxy resin as core, is supplemented with curing agent, filler and the like, has high strength and corrosion resistance; the rubber system takes natural or synthetic rubber as basis and is formed through vulcanization process, and has elasticity and flexibility; the acrylate system takes acrylate monomer polymer product as main body, has fast curing at normal temperature and wide bonding range.

[0004] Referring to the document with the publication (announcement) number CN106732251A, a kind of sulfonated enamel reaction kettle for preparing adhesive is disclosed, including enamel reaction kettle tank body and upper cover, enamel reaction kettle tank body upper end port is provided with metal sealing ring, enamel reaction kettle tank body and upper cover are detachably connected, the wall surface of enamel reaction kettle tank is sequentially provided with stainless steel rustproof layer, tank outer layer and tank inner layer from outside to inside, stainless steel rustproof layer and tank outer layer outer surface are welded and fixed, enamel reaction kettle tank lower end is provided with a fluid outlet, the inner end of fluid inlet and fluid outlet are in communication with fluid cavity, the inner surface of tank inner layer is detachably provided with raw material dispersion device.

[0005] For example, the above-mentioned reaction kettle disperses raw materials by setting raw material dispersion device. However, when preparing paste adhesive of acrylate system, the acrylate monomer and part of water-soluble acrylate copolymer in raw materials contain a certain amount of polar groups, and are often in powder form before preparation. These raw materials are easy to absorb moisture, so that the particles are aggregated to form lumps due to the adhesion of moisture between particles. After being put into the reaction kettle, even if mixed with water and heated, it is also difficult to dissolve, and finally remains in the form of undissolved particles in the colloid, which makes the adhesive rough in texture and easy to appear uneven or block the coating equipment during coating. SUMMARY

[0006] The purpose of the scheme is to provide a reaction kettle for paste adhesive production, so as to solve the problem of raw material lumping when preparing acrylate paste adhesive by using the existing reaction kettle.

[0007] In order to achieve the above object, the present scheme provides a kind of reaction kettle for paste glue production, including reaction kettle and being equipped with the crushing assembly in reaction kettle, the crushing assembly includes:

[0008] Crushing chamber, the crushing chamber is equipped in reaction kettle, and is communicated with the inlet of reaction kettle;

[0009] Discharge hole, the discharge hole is equipped in the bottom of crushing chamber;

[0010] Crushing shaft, one end of the crushing shaft passes through the top cover of reaction kettle, and is connected with driving source;Free end passes through crushing chamber, and is rotatably connected with the top of reaction kettle;

[0011] Swirl vane, the swirl vane is equipped in crushing chamber, and is coaxially fixedly connected with crushing shaft;

[0012] Further including separation assembly, the separation assembly includes air extraction pump and air intake unit, the air intake end of air extraction pump is connected with exhaust valve, the air intake end of exhaust valve is communicated with crushing chamber by pipeline;The air intake unit includes through air inlet and air outlet;One of the crushing shaft is hollow, and the air inlet and air outlet are all equipped on the hollow crushing shaft, the air inlet is equipped outside crushing chamber, the air outlet is equipped in crushing chamber, and the air outlet is below swirl vane, the air inlet and air outlet are all connected with one-way valve.

[0013] The principle and effect of the scheme are that: (1) by setting the crushing chamber in the reaction kettle, the raw materials are first put into the crushing chamber from the feeding port to avoid the agglomeration directly into the main body of the reaction kettle. The driving source drives the crushing shaft to rotate, and then drives the cyclone blade to rotate in the crushing chamber. When the cyclone blade rotates, it will shear and impact the agglomerates entering the crushing chamber, crushing them into powder, realizing the preliminary dispersion treatment of the raw materials; the crushed raw materials enter the main body of the reaction kettle through the discharge hole at the bottom of the crushing chamber. At this time, the raw materials put into the reaction kettle have been dispersed, and the dispersed raw materials can be more fully contacted with water, reducing the problem of insufficient dissolution caused by agglomerated raw materials, thereby solving the problem that the residual particles of the raw materials in the existing reaction kettle affect the quality of the adhesive. (2) In the process of preparing paste adhesive, the reaction kettle needs to heat the material to promote the gelatinization of the raw material. When heating, the water evaporates to form water vapor. Because the upper part of the reaction kettle is not filled with material, even if the heating pipe heats it, the lack of material heat buffer will form a temperature difference (i.e. the temperature of the upper space is lower than that of the lower part), causing the water vapor to condense into condensed water on the kettle wall, top cover and other parts. If the condensed water drops back into the material, it will dilute the glue, causing the viscosity to decrease, affecting the product quality. (3) In the scheme, when the suction pump forms negative pressure in the kettle, the one-way valve connected to the air inlet (located outside the crushing chamber) and the air outlet (located inside the crushing chamber below the cyclone blade) opens. The water vapor in the reaction kettle is sucked into the hollow crushing shaft through the air inlet, and then discharged into the crushing chamber from the air outlet. At this time, the cyclone blade rotating with the crushing shaft produces a cyclone effect on the water vapor (similar to the cyclone separation in the desulfurization tower), which separates the liquid droplets in the water vapor by centrifugal force, so that the liquid droplets fall into the crushing chamber. At the same time, the suction pump discharges the gas from the crushing chamber through the exhaust valve, realizing the preliminary separation of gas and liquid. (4) In the process of heating and mixing the material and medium, the scheme can also reduce the boiling point of the water vapor in the kettle by drawing the reaction kettle to a negative pressure state through the suction pump, accelerating the evaporation of water to promote the gelatinization reaction.

[0014] Further, the bottom of the crushing chamber is provided with a carrier plate, the carrier plate is provided with a through groove, the discharge hole is penetratingly arranged on the carrier plate, a partition plate is slidingly connected in the through groove, one end of the partition plate close to the crushing shaft is connected with a spring, the free end of the spring is fixedly connected with the crushing shaft, and the partition plate is provided with a through hole matched with the discharge hole.

[0015] The principle and effect of the scheme are that: in the initial state, the partition plate is in one side position under the pre-tightening force of the spring, the through hole is completely staggered with the discharge hole on the carrier plate, the raw materials put into the crushing chamber are blocked by the partition plate and cannot fall, and the raw materials are all left in the chamber for crushing; when the driving source drives the crushing shaft to rotate at high speed, the cyclone blade rotates at high speed, the rotation of the crushing shaft generates centrifugal force, the spring connected to the shaft is stretched, and the partition plate is driven to slide to the side away from the crushing shaft against the pre-tightening force, at this time, the other side of the partition plate is attached to the discharge hole, and the through hole is still staggered with the discharge hole, and the raw materials continue to be sheared in the chamber; when the crushing is completed, the driving source reduces the speed, the centrifugal force of the crushing shaft is weakened, the spring is retracted to drive the partition plate to reset to the middle position, so that the through hole on the partition plate is coincided with the discharge hole of the carrier plate, at this time, the crushed raw materials can fall into the reaction kettle body through the through hole and the discharge hole, thereby avoiding that the uncrushed raw materials fall in advance, and reducing the residue of un-dissolved particles in the subsequent reaction.

[0016] Further, the cyclone blades are uniformly distributed along the circumference of the crushing shaft, the blade surface of the cyclone blade is obliquely arranged with the axis of the crushing shaft, and the blade surface is inclined towards the rotation direction of the crushing shaft, and the blade surface of the cyclone blade gradually expands outward from one end close to the crushing shaft to one end away from the crushing shaft, forming a guide flow curved surface extending to the top of the crushing chamber.

[0017] The principle and effect of the scheme are that: the cyclone blade is arranged as above, when the crushing shaft rotates, the inclined blade surface generates shearing force to crush the raw materials; at the same time, upward airflow traction force is generated, which can suck water vapor into the crushing chamber, and separate the water vapor through cyclone separation, the liquid droplets are thrown to the wall surface of the crushing chamber, flow to the bottom of the crushing chamber for temporary storage, and the separated airflow flows upward through the cyclone blade, and is discharged from the reaction kettle through the air pump.

[0018] Further, the one-way valve comprises a sealing ball and a tension spring, the tension spring is arranged in the air inlet and the air outlet respectively, the free end of the tension spring is fixedly connected with the sealing ball, and the sealing ball is used for sealing the air inlet and the air outlet.

[0019] The principle and effect of the scheme are that: under normal conditions, the tension of the tension spring makes the sealing ball tightly attached to the air inlet and the air outlet, and seals the air inlet and the air outlet; when the rotation speed of the crushing shaft reaches the limit, the partition plate still blocks the sealed discharge hole, the sealing ball moves away from the air inlet and the air outlet under the action of the centrifugal force against the tension of the tension spring, so that the air inlet and the air outlet are in an open state, at this time, the air pump forms negative pressure by pumping the reaction kettle, and the water vapor in the reaction kettle enters through the air inlet and is discharged from the air outlet into the crushing chamber. When the rotation speed of the crushing shaft decreases, the centrifugal force decreases, and the tension of the tension spring drives the sealing ball to reset to reseal the air inlet and the air outlet.

[0020] Further, the air inlet unit further comprises a drain valve, a water inlet end of the drain valve penetrating through the crushing chamber and communicating with the inside of the crushing chamber, and a water outlet end of the drain valve being connected with a water suction pump through a pipeline.

[0021] The principle and effect of the scheme are that the drain valve cooperates with the water suction pump to drain the condensed water temporarily stored in the crushing chamber; when the separated liquid in the crushing chamber accumulates to a certain amount, the drain valve is opened, and the water suction pump drains the accumulated water through the pipeline. Then the drain valve is closed again to avoid affecting the negative pressure environment in the reaction kettle.

[0022] Further, the air suction pump is connected with a pressure sensor, and the pressure sensor is connected with a controller; a heating pipe is spirally wound on the outer wall of the reaction kettle; a temperature adjusting assembly is further included, the temperature adjusting assembly comprising a water supply pump and a heater, a water inlet end of the water supply pump communicating with the heater, and a water outlet end being connected with a first three-way valve; two ends of the first three-way valve are respectively connected with a second three-way valve and a third three-way valve through pipelines, one end of the second three-way valve and the third three-way valve respectively communicating with two ends of the heating pipe through pipelines, and the other end of the second three-way valve and the third three-way valve respectively communicating with the water inlet end of the heater through pipelines; the first three-way valve, the second three-way valve and the third three-way valve are electrically connected with the controller.

[0023] The principle and effect of the scheme are that (1) in the preparation of the paste-like glue, the temperature in the reaction kettle needs to be adjusted to ensure gelatinization and avoid uneven gelatinization caused by local overheating. The heating pipe provided on the outer wall of the existing reaction kettle usually adopts the mode of water inlet at the lower end and water outlet at the upper end (or water inlet at the upper end and water outlet at the lower end), which can theoretically balance the temperature of the liquid in the kettle through rapid stirring. However, due to the non-Newtonian fluid characteristics of the paste-like glue formed after the mixture of raw materials and water, when the stirring rate (shear rate) increases, the paste-like glue still has high viscosity characteristics as a whole due to the large amount of high molecular components, and the flow resistance is extremely large, resulting in that the fluid is difficult to form sufficient convection during stirring, and more is local shear motion, that is, the fluid near the stirring paddle is driven to move, while the fluid in the area far away from the paddle (especially the upper and lower edges) has poor flowability. At the same time, when the reaction kettle is heated by the heating pipe on the outer wall, heat is transferred from the wall to the inside, and a temperature gradient from the bottom to the top along the kettle wall is easily formed. The low flowability of the paste-like glue cannot make the fluid in the high-temperature area quickly diffuse to the low-temperature area through stirring, so that the temperature difference between the upper and lower layers is difficult to be solved through stirring, affecting the gelatinization effect. (2) In the scheme, the pressure sensor monitors the pressure related to the air suction pump and feeds back to the controller, the temperature adjusting assembly sends the water treated by the heater to the first three-way valve through the water supply pump, and the controller controls the on-off of the first, second and third three-way valves to switch the water flow direction in the heating pipe. By changing the water flow path, hot water enters from the upper end of the heating pipe and flows out from the lower end, and the water flow direction is alternately switched to the lower end inlet and the upper end outlet at regular time intervals, so as to avoid the problem of uneven heat distribution under a single water flow direction, thereby reducing the temperature difference between the upper and lower layers.

[0024] Further, check valves are arranged on the pipelines connecting the second three-way valve and the third three-way valve with the heater.

[0025] The principle and effect of the scheme are that the heating working medium in the pipeline flows in a preset direction to prevent backflow.

[0026] Further, the controller is electrically connected with a first cylinder and a second cylinder, and the piston rods of the first cylinder and the second cylinder are fixedly connected with the upper and lower ends of the heating pipe, respectively.

[0027] The principle and effect of the scheme are that (1) although the water flow direction can be switched up and down to balance the overall temperature difference of the upper and lower regions of the heating pipe to a certain extent, the heat carried by the water flow into the heating pipe is the most sufficient, and in the process of flowing along the pipe, heat is continuously transferred to the reaction kettle, resulting in a gradual decrease in water temperature along the way, so that there is still a temperature difference between the heating pipe at the water inlet end and the middle position. (2) In the scheme, the controller controls the extension and retraction of the piston rods of the first cylinder (connected to the upper end of the heating pipe) and the second cylinder (connected to the lower end of the heating pipe) according to the temperature monitoring signal, drives the upper end (lower end) of the heating pipe to move, and adjusts the spacing between the heating pipes. For example, when water enters the upper end of the heating pipe, the piston rod of the first cylinder is extended to the limit position, thereby driving the upper end of the heating pipe to increase the pipe spacing, thereby reducing the heat concentration; at the same time, the piston rod of the second cylinder is retracted to the limit position, thereby driving the lower end of the heating pipe to reduce the pipe spacing, thereby increasing the heat density in the region, so as to compensate for the temperature difference between the regions and make the temperature in the reaction kettle more uniform.

[0028] Further, the driving source is an electric motor, the output shaft of the electric motor is fixedly connected with the crushing shaft in a coaxial manner, a plurality of groups of stirring blades are arranged in the crushing chamber in a spaced manner, and the stirring blades are arranged below the crushing chamber.

[0029] The principle and effect of the scheme are that the electric motor as the driving source drives the crushing shaft to rotate, and the plurality of groups of stirring blades connected in a coaxial manner rotate synchronously with the crushing shaft, so that when the raw materials fall into the reaction kettle body from the discharge hole, the stirring blades stir the raw materials under the driving of the crushing shaft, so that the raw materials can be quickly and fully mixed with the medium (such as water) in the reaction kettle. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic view of the reaction kettle for paste glue production of the application;

[0031] Figure 2 It is a structural schematic view of the reaction kettle for paste glue production of the application;

[0032] Figure 3 It is a structural schematic view of the reaction kettle for paste glue production of the application; Figure 2 It is a local enlarged schematic view of A in the middle.

[0033] The reference signs in the drawings of the specification include: a reaction kettle 1, a feeding port 11, a top cover 12, a heating pipe 13, a crushing assembly 2, a crushing chamber 21, a discharging hole 211, a crushing shaft 22, a cyclone blade 23, a carrier plate 24, a through slot 241, a partition plate 25, a through hole 251, a spring 26, a stirring blade 27, a motor 28, a separation assembly 3, an air exhaust pump 31, an exhaust valve 32, an air inlet 33, a one-way valve 34, a sealing ball 341, a tension spring 342, a water drainage valve 35, a temperature adjusting assembly 4, a water supply pump 41, a first three-way valve 42, a second three-way valve 43, a third three-way valve 44, a check valve 45, a first air cylinder 46, and a second air cylinder 47. DETAILED DESCRIPTION

[0034] The concept and the technical effects of the present application will be described below in conjunction with the embodiments so as to fully understand the purposes, features and effects of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application:

[0035] Embodiment 1

[0036] Please refer to Figures 1-3 The present embodiment provides a reaction kettle for paste glue production, which comprises a reaction kettle 1 and a crushing assembly 2 arranged in the reaction kettle 1. The crushing assembly 2 comprises a crushing chamber 21, a discharging hole 211, a crushing shaft 22 and a cyclone blade 23. The crushing chamber 21 is in a circular truncated cone structure and is vertically arranged at the upper portion of the reaction kettle 1. The top end of the crushing chamber 21 is communicated with the feeding port 11 of the reaction kettle 1, and a sealable flip cover is arranged at the feeding port 11 to ensure the airtightness of the reaction kettle 1 after the raw materials are put in. The upper end of the crushing shaft 22 penetrates through the top cover 12 of the reaction kettle 1 and is connected with a driving source through a coupling. In the present embodiment, the driving source is a servo motor 28 which is electrically connected with a PID servo controller to adjust the rotating speed. The motor 28 is fixed above the top cover 12 by bolts, and the output shaft is coaxially arranged with the crushing shaft 22 and is fixedly connected through a key. The lower end of the crushing shaft 22 penetrates through the crushing chamber 21 and extends to the bottom of the reaction kettle 1 and is rotatably connected with the inner bottom of the reaction kettle 1 through a deep groove ball bearing. The outer ring of the bearing is in interference fit with the inner wall of the reaction kettle 1, and the shaft end is in transition fit with the inner ring of the bearing. The part of the crushing shaft 22 below the crushing chamber 21 is coaxially connected with three groups of stirring blades 27 which are arranged at intervals. The length of the stirring blades 27 is 1 / 2 of the inner diameter of the reaction kettle 1, and the stirring blades 27 are fixed with the crushing shaft 22 by bolts and can rotate synchronously with the crushing shaft 22 to stir and mix the falling raw materials.

[0037] Please continue to refer to Figure 3The number of the cyclone blades 23 is multiple, and the cyclone blades 23 are uniformly distributed along the circumference of the crushing shaft 22 and fixedly connected with the crushing shaft 22 coaxially by welding. The blade surface of the cyclone blade 23 is inclined to the axis of the crushing shaft 22 by 35°, and the blade surface is inclined to the rotating direction of the crushing shaft 22, and the blade surface gradually expands outward from one end close to the crushing shaft 22 to the other end away from the crushing shaft 22, forming a guide curved surface extending to the top of the crushing chamber 21, so that the cyclone blade 23 can generate shearing and impact force on the raw material lumps when rotating, and can also form upward airflow traction force.

[0038] Please continue to refer to Figure 3 The bottom of the crushing chamber 21 is fixed with a carrier plate 24, the carrier plate 24 is a circular steel plate, and a through groove 241 is formed in the carrier plate 24, the through groove 241 is rectangular. The discharge hole 211 is formed through the middle part of the carrier plate 24. A partition plate 25 is slidably connected in the through groove 241, the partition plate 25 is a rectangular plate matched with the through groove 241. The end of the partition plate 25 close to the crushing shaft 22 is welded with a spring 26, and the other end of the spring 26 is fixedly welded with the crushing shaft 22. A through hole 251 is formed in the partition plate 25 and matched with the discharge hole 211, and the through hole 251 is located at the middle position of the partition plate 25, so that the partition plate 25 is equidistant from the through hole 251 on both sides, so that the partition plate 25 can block the discharge hole 211 when the raw materials are fed and crushed.

[0039] Please refer to Figure 1 and Figure 3 Further comprising a separation assembly 3, the separation assembly 3 comprises an air suction pump 31 and an air inlet unit. The air suction pump 31 is a vacuum pump, which is fixed on the rack outside the reaction kettle 1 by bolts, and the air inlet end thereof is connected with an exhaust valve 32 through a pipeline, the exhaust valve 32 is an electromagnetic valve, and the air inlet end of the exhaust valve 32 is communicated with the upper part of the crushing chamber 21 through a pipeline. The air inlet unit comprises a through air inlet 33 and an air outlet, the middle segment of the crushing shaft 22 is a hollow structure, and the air inlet 33 and the air outlet are both formed in the segment, the air inlet 33 is located outside the crushing chamber 21 and below the discharge hole 211; the air outlet is located inside the crushing chamber 21 and below the cyclone blade 23, the air inlet 33 and the air outlet are of the same structure, both of which are of a necked structure, that is, the hole diameter of the air inlet side is larger than that of the air outlet side, and both of which are connected with a one-way valve 34. The one-way valve 34 is composed of a sealing ball 341 and a tension spring 342, the tension spring 342 is arranged in the air inlet 33 and the air outlet respectively, one end of the tension spring 342 is welded with the inner wall of the crushing shaft 22, and the other end is fixedly connected with the sealing ball 341. The sealing ball 341 is a sealing ball 341 made of rubber, and the tension spring 342 always pulls the sealing ball 341 to seal the air inlet 33 and the air outlet. The air inlet unit further comprises a drain valve 35, the drain valve 35 is an electromagnetic valve, the water inlet end thereof penetrates through the bottom side wall of the crushing chamber 21 and communicates with the inside of the crushing chamber 21, and the water outlet end is connected with a water suction pump through a pipeline, the water suction pump is a small centrifugal water suction pump, which is used to drain the accumulated water in the chamber.

[0040] The working process of the embodiment: in the initial state, the partition plate 25 is on one side of the through slot 241 under the pre-tightening force of the spring 26, the through hole 251 is misaligned with the discharge hole 211, and the raw materials are left in the crushing chamber 21 after being put in. Start the motor 28, the crushing shaft 22 rotates at 900 r / min, the centrifugal force makes the spring 26 stretch, drives the partition plate 25 to slide, still seals the discharge hole 211, and the cyclone blade 23 fully crushes the raw materials. In this stage, since the crushing shaft 22 does not reach the limit speed, the sealing ball 341 is still sealed into the air inlet 33 and the air outlet under the pre-tightening force of the tension spring 342. After the crushing is completed, the controller controls the motor 28 to reduce the speed to 150 r / min, the centrifugal force is weakened, the spring 26 retracts to reset the partition plate 25, the through hole 251 is coincided with the discharge hole 211, the raw materials fall into the main body of the reaction kettle 1, then the reaction medium is added into the reaction kettle 1, and the stirring blade 27 stirs and mixes the falling raw materials and medium. When the reaction kettle 1 is heated, the crushing shaft 22 rotates at 1000 r / min, at this time the sealing ball 341 overcomes the tension of the tension spring 342 under the action of the centrifugal force, opens the air inlet 33 and the air outlet, the water vapor in the reaction kettle 1 enters the hollow crushing shaft 22 through the air inlet 33, and is discharged into the crushing chamber 21 from the air outlet. The cyclone blade 23 rotates to generate cyclone, uses the centrifugal force to separate the liquid droplets, the liquid droplets are thrown to the wall and flow to the bottom for temporary storage, the gas is discharged by the air pump 31, the controller opens the drain valve 35 and starts the water pump to drain water, and after completion, the drain valve 35 is closed.

[0041] Embodiment 2

[0042] The difference between this embodiment and the previous embodiment is that the temperature regulation of the reaction kettle 1 is improved. Please refer to Figure 1, the exhaust pump 31 is connected with a pressure sensor (not shown), the pressure sensor is a diffused silicon pressure transmitter, the detection end is arranged on the pipeline between the exhaust pump 31 and the exhaust valve 32, and the output end is connected with a controller through a line; the controller is a PLC controller with a model S7-200, and is arranged in a control box outside the reaction kettle 1. The outer wall of the reaction kettle 1 is spirally wound with a heating pipe 13, the heating pipe 13 is a red copper pipe with a spiral spacing of 6 cm. The temperature adjusting assembly 4 comprises a water supply pump 41 and a heater, the water supply pump 41 is a gear pump, and the heater is an electric heating water tank; the water supply pump 41 and the heater are connected through pipelines; the water outlet end of the water supply pump 41 is connected with a first three-way valve 42, and the first three-way valve 42 is an electromagnetic three-way valve. The other two ends of the first three-way valve 42 are connected with a second three-way valve 43 and a third three-way valve 44 through pipelines respectively, the second three-way valve 43 and the third three-way valve 44 are both electromagnetic three-way valves, one end of each of the two is communicated with the upper end and the lower end of the heating pipe 13 through a pipeline respectively, the other end of each of the two is communicated with the water inlet end of the heater through a pipeline respectively, and a check valve 45 is arranged on each of the two pipelines to prevent backflow of the working medium. The first three-way valve 42, the second three-way valve 43 and the third three-way valve 44 are electrically connected with the controller through lines. The controller is also electrically connected with a first air cylinder 46 and a second air cylinder 47, the two are single-rod double-acting cylinders with a cylinder diameter of 50 mm, and the piston rods are welded and fixed with the upper end and the lower end of the heating pipe 13 respectively, so as to adjust the spacing of the heating pipe 13.

[0043] The working process of the embodiment is as follows: during heating, the controller controls the temperature adjusting assembly 4 to work, the water supply pump 41 delivers hot water heated to 90 DEG C by the heater to the first three-way valve 42, and the water flow direction of the heating pipe 13 is switched by controlling the on-off of the three-way valve: when the first three-way valve 42 is communicated with the second three-way valve 43, the second three-way valve 43 is communicated with the upper end of the heating pipe 13, and the third three-way valve 44 is communicated with the heater, the hot water flows from the upper end to the lower end; when the first three-way valve 42 is communicated with the third three-way valve 44, the third three-way valve 44 is communicated with the lower end of the heating pipe 13, and the second three-way valve 43 is communicated with the heater, the hot water flows from the lower end to the upper end, and the controller switches the direction every 10 minutes to balance the temperature difference between the upper end and the lower end. At the same time, according to the feedback of the temperature sensor (not shown in the figure) in the reaction kettle 1, the controller controls the first air cylinder 46 and the second air cylinder 47 to extend and retract: when the water flows into the upper end, the piston rod of the first air cylinder 46 extends to increase the spacing of the upper end of the heating pipe 13 to 9 cm, and the piston rod of the second air cylinder 47 retracts to reduce the spacing of the lower end to 4 cm; when the water flows into the lower end, the adjustment is reversed, so as to compensate for the temperature difference between the water inlet end and the remaining sections, so that the temperature in the reaction kettle 1 is more uniform.

[0044] The above-mentioned are only embodiments of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. A reaction kettle for paste glue production, comprising a reaction kettle (1) and a crushing assembly (2) arranged in the reaction kettle (1), characterized in that, The crushing assembly (2) comprises: A crushing chamber (21) arranged in the reaction kettle (1) and communicating with the feeding port (11) of the reaction kettle (1); A discharge hole (211) arranged at the bottom of the crushing chamber (21); A crushing shaft (22) having one end penetrating through the top cover (12) of the reaction kettle (1) and being connected with a driving source, and having a free end penetrating through the crushing chamber (21) and being rotatably connected with the top of the reaction kettle (1); A cyclone vane (23) arranged in the crushing chamber (21) and being coaxially fixedly connected with the crushing shaft (22); Further comprising a separation assembly (3) comprising an air extraction pump (31) and an air inlet unit, the air inlet end of the air extraction pump (31) being connected with an exhaust valve (32), the air inlet end of the exhaust valve (32) communicating with the crushing chamber (21) through a pipeline; the air inlet unit comprising a through air inlet (33) and an air outlet; one section of the crushing shaft (22) being a hollow crushing shaft (22), the air inlet (33) and the air outlet being arranged on the hollow crushing shaft (22), the air inlet (33) being arranged outside the crushing chamber (21), the air outlet being arranged inside the crushing chamber (21) and being located below the cyclone vane (23), the air inlet (33) and the air outlet being both connected with a one-way valve (34); The air extraction pump (31) is connected with a pressure sensor, and the pressure sensor is connected with a controller; a heating pipe (13) is spirally wound on the outer wall of the reaction kettle (1); further comprising a temperature regulating assembly (4) comprising a water supply pump (41) and a heater, the water inlet end of the water supply pump (41) communicating with the heater, and the water outlet end being connected with a first three-way valve (42); the two ends of the first three-way valve (42) being respectively connected with a second three-way valve (43) and a third three-way valve (44) through pipelines, one end of the second three-way valve (43) and the third three-way valve (44) respectively communicating with the two ends of the heating pipe (13) through pipelines, and the other end of the second three-way valve (43) and the third three-way valve (44) respectively communicating with the water inlet end of the heater through pipelines; the first three-way valve (42), the second three-way valve (43) and the third three-way valve (44) are all electrically connected with the controller.

2. The reaction kettle for producing paste glue according to claim 1, characterized in that: The bottom of the crushing chamber (21) is provided with a carrier plate (24) having a through slot (241), the discharge hole (211) penetratingly arranged on the carrier plate (24), the through slot (241) being slidably connected with a partition plate (25), one end of the partition plate (25) close to the crushing shaft (22) being connected with a spring (26), the free end of the spring (26) being fixedly connected with the crushing shaft (22), and the partition plate (25) being provided with a through hole (251) matched with the discharge hole (211).

3. The reaction vessel for paste glue production according to claim 1, characterized in that: The cyclone vane (23) is uniformly distributed along the crushing shaft (22), the vane surface of the cyclone vane (23) is obliquely arranged with the axis of the crushing shaft (22), and the vane surface is inclined towards the rotation direction of the crushing shaft (22), the vane surface of the cyclone vane (23) gradually expands outward from one end close to the crushing shaft (22) to one end away from the crushing shaft (22), forming a guide curved surface extending to the top of the crushing chamber (21).

4. The reaction vessel for paste glue production according to claim 1, characterized in that: The one-way valve (34) comprises a sealing ball (341) and a tension spring (342), the tension spring (342) is arranged in the air inlet (33) and the air outlet respectively, the free end of the tension spring (342) is fixedly connected with the sealing ball (341), and the sealing ball (341) is used for sealing the air inlet (33) and the air outlet.

5. The reaction vessel for paste glue production according to claim 1, characterized in that: The air inlet unit further comprises a drain valve (35), the water inlet end of the drain valve (35) penetrates through the crushing chamber (21) and communicates with the inside of the crushing chamber (21), and the water outlet end of the drain valve (35) is connected with a water pump through a pipeline.

6. The reaction vessel for paste glue production according to claim 1, characterized in that: Check valves (45) are arranged on the pipelines connected with the heater.

7. The reaction vessel for paste glue production according to claim 6, characterized in that: The controller is electrically connected with a first air cylinder (46) and a second air cylinder (47), and the piston rods of the first air cylinder (46) and the second air cylinder (47) are fixedly connected with the upper and lower ends of the heating pipe (13) respectively.

8. The reaction vessel for paste glue production according to claim 1, characterized in that: The driving source is a motor (28), the output shaft of the motor (28) is coaxially fixedly connected with the crushing shaft (22), the crushing shaft (22) is coaxially connected with a plurality of groups of interval arranged stirring vanes (27), and the stirring vanes (27) are arranged below the crushing chamber (21).

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