CN113926409A - Preparation device and preparation method of high-speed-coatable polymer latex for paper - Google Patents
Preparation device and preparation method of high-speed-coatable polymer latex for paper Download PDFInfo
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- CN113926409A CN113926409A CN202111217280.8A CN202111217280A CN113926409A CN 113926409 A CN113926409 A CN 113926409A CN 202111217280 A CN202111217280 A CN 202111217280A CN 113926409 A CN113926409 A CN 113926409A
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- 239000004816 latex Substances 0.000 title claims abstract description 35
- 229920000126 latex Polymers 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 229920000642 polymer Polymers 0.000 title claims description 27
- 238000003756 stirring Methods 0.000 claims abstract description 170
- 238000006243 chemical reaction Methods 0.000 claims abstract description 72
- 239000002994 raw material Substances 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 238000012544 monitoring process Methods 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 42
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000005192 partition Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 230000007306 turnover Effects 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000007872 degassing Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 5
- 229920001688 coating polymer Polymers 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 14
- 239000011248 coating agent Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
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- 239000000049 pigment Substances 0.000 description 1
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- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- 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
- B01J19/0006—Controlling or regulating processes
-
- 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
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- 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
- B01J19/0053—Details of the reactor
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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
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
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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
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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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
- B01J19/0053—Details of the reactor
- B01J19/0073—Sealings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
Abstract
The invention discloses a preparation device of high-speed coating polymer latex for paper, which comprises a processing component for processing raw materials, a feeding and discharging component arranged on the processing component and used for feeding and discharging the raw materials, a stirring component arranged in a reaction kettle and used for stirring the raw materials, and a monitoring component arranged on the processing component. It stirs the raw materials through the stirring subassembly of constituteing by (mixing) shaft, agitator motor and stirring rake to utilize the monitoring subassembly to realize carrying out intelligent detection to the internal reaction environment of reation kettle, reached simultaneously to different raw materials batch mix the stirring simultaneously, realize the preparation intellectuality, promote stirring efficiency, reduce can and promote the purpose of product preparation quality.
Description
Technical Field
The invention relates to the technical field of polymer latex, in particular to a preparation device and a preparation method of polymer latex for paper capable of being coated at high speed.
Background
With the rapid development of paper making technology, coating machines with coating speeds of over 1000 m/min are developed in developed countries of the day, the united states and the like, and accordingly synthetic latex capable of adapting to high-speed coating processes is required. When the coating is prepared, the compatibility of common papermaking latex and additives such as pigment is poor, and the coating with the solid content of 65 percent is difficult to prepare. Under the condition of high shearing, the fluidity, the water retention property and the mechanical stability of the coating prepared by the common papermaking latex are poor, the requirement of the coating continuity cannot be met, and the coating process requirement that the coating speed is more than 900 m/min cannot be met. Therefore, synthetic development of high-speed coating latex has been carried out.
High speed coating of latex has been extensively studied in order to meet the requirements of high speed coating processes. In the prior art, free radical emulsion polymerization is adopted for high-speed coating of latex, and related documents are reported more, such as US-4760108, JP 94-173198, JP 94-211911, JP 96-158296, JP 93-230796 and the like. Because the raw materials are numerous, the raw materials are more complicated in the stirring process of stirring, and the requirement of carrying out a plurality of stirring on one device cannot be realized.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a device and a method for preparing polymer latex for paper capable of being coated at high speed, so as to achieve the purposes of simultaneously mixing and stirring different raw materials in batches, improving stirring efficiency, reducing and improving the preparation quality of products.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a preparation device of polymer latex for paper capable of being coated at high speed comprises a processing component for processing raw materials, a feeding and discharging component arranged on the processing component and used for feeding and discharging the raw materials, a stirring component arranged in a reaction kettle and used for stirring the raw materials, and a monitoring component arranged on the processing component;
the processing assembly comprises a reaction kettle body;
the stirring assembly comprises a stirring shaft arranged in the reaction kettle body, a stirring motor for driving the stirring shaft to rotate, and a plurality of stirring paddles arranged on the stirring shaft, wherein the stirring paddles are arranged on the stirring shaft through connecting pieces;
the monitoring assembly comprises a temperature sensor and a pressure sensor which are arranged on the reaction kettle body.
According to the preparation device and the preparation method of the polymer latex for paper capable of being coated at high speed, provided by the invention, raw materials are stirred by the stirring assembly consisting of the stirring shaft, the stirring motor and the stirring paddle, and the intelligent detection of the reaction environment in the reaction kettle body is realized by the monitoring assembly, so that the purposes of simultaneously mixing and stirring different raw materials in batches simultaneously, realizing preparation intellectualization, improving the stirring efficiency, reducing the preparation quality of products and improving the preparation quality of the products are achieved.
Preferably, the stirring assembly further comprises a partition plate arranged in the reaction kettle, and the reaction kettle body is divided into an upper stirring cabin and a lower stirring cabin by the partition plate;
the partition plate comprises a fixed plate fixed in the reaction kettle body, four mounting bars uniformly arranged on the fixed plate, movable plates arranged between the adjacent mounting bars and a turnover motor arranged between the movable plates;
the side wall of the fixing plate between the adjacent mounting bars is an inward concave arc surface; the side edge of the interactive plate is tightly attached to the arc surface and the mounting strip;
the turnover motor is arranged on the side wall of the reaction kettle, and a driving shaft of the turnover motor penetrates through the side wall of the reaction kettle body and is connected with the movable plate. Realize separating into different reaction intervals with reation kettle through the baffle, be convenient for carry out independent reaction to two sets of raw materials simultaneously, promoted the processing time.
Preferably, the stirring shaft is vertically arranged, the top end of the stirring shaft is abutted against the top of the reaction kettle body, and the bottom end of the stirring shaft penetrates through the bottom of the reaction kettle body and is communicated with the stirring motor;
the connecting piece comprises a sealing cover arranged on the fixing plate, a stirring shaft sleeve arranged on the sealing cover, a lifting motor arranged in the sealing cover and a driving gear arranged on the stirring shaft; the sealing cover is consistent with the fixing plate; the top end of the stirring shaft sleeve penetrates through the sealing cover, the bottom end of the stirring shaft sleeve is positioned in the sealing cover, and the stirring paddle is arranged on the side wall of the top of the stirring shaft sleeve; the stirring shaft sleeve is sleeved on the stirring shaft, and the inner wall of the stirring shaft sleeve is provided with a circle of driven teeth matched with the driving teeth;
the lifting motor is characterized in that a lifting gear is arranged on a driving shaft of the lifting motor, lifting sawteeth matched with the lifting gear are arranged on the outer side wall of the stirring shaft sleeve, and the lifting sawteeth are arranged on the stirring shaft in a circle shape. The detachable connection of stirring rake and (mixing) shaft is realized through the connecting piece that sealed cowling, stirring axle sleeve, promotion motor and drive gear constitute, has further promoted the service quality of stirring rake.
Preferably, the upper side and the lower side of the partition board are both provided with adjusting components for adjusting the effective space of the cabin, each adjusting component comprises a first adjusting plate arranged in the reaction kettle body, a second adjusting plate arranged on the first adjusting plate, an adjusting groove arranged on the inner wall of the reaction kettle body, a vertical groove arranged in the side wall of the reaction kettle body and an adjusting stop block arranged on the first adjusting plate, the first adjusting plate is provided with a sealing plate for sealing the adjusting groove, the sealing plate is arranged in the vertical groove, and the upper side and the lower side of the first adjusting plate are both provided with the sealing plate; the centers of the first adjusting plate and the second adjusting plate are both provided with through holes for the stirring shaft to pass through; the adjusting stop block is horizontally arranged, and the end part of the adjusting stop block is arranged on the outer side of the reaction kettle body;
and discharge chutes for discharging materials are further formed in the first adjusting plate and the second adjusting plate. Through adjusting the stirring space of stirring tank by first regulating plate, second regulating plate, adjustment tank, vertical groove, regulation dog and closing plate realization to realize that the raw materials stirs in complete space, also avoid stirring in-process raw materials to appear undulantly, promoted the stirring efficiency of raw materials.
Preferably, the feeding and discharging assembly comprises a feeding hopper, a feeding pipe connected with each cabin body, a discharging pipe arranged on each cabin body, and electromagnetic valves arranged on the feeding pipe and the discharging pipe.
Preferably, the connecting piece further comprises a cleaning piece arranged at the top of the sealing cover; the cleaning piece includes the clearance scraper of setting on the stirring axle sleeve, the clearance scraper is along with the (mixing) shaft rotates. The raw materials at the top of the sealing cover are scraped by the cleaning scraper, so that the utilization rate of the raw materials is improved, and the loss of the raw materials is reduced.
A preparation method of high-speed coatable polymer latex for paper comprises the following steps:
(1) vacuumizing the reaction kettle body, and then arranging an adjusting plate at a proper position according to the requirement of raw materials to be stirred;
(2) heating the temperature in the reaction cabin to an initial set temperature, and pouring the raw materials into the specified reaction cabin;
(3) continuing to heat the reaction cabin to the specified temperature, and starting a stirrer to stir the raw materials;
(4) mixing the separately stirred raw materials, and simultaneously keeping the temperature in the cabin constant;
(5) supplementing liquid in the stirring process;
(6) degassing treatment is carried out, the stirring shaft is driven to rotate by utilizing the power generated during degassing,
(7) and cooling and standing to obtain the prepared paper polymer latex.
Preferably, step (7) is specifically as follows:
(7-1) cooling the mixture;
(7-2) cooling and filtering the mixed material;
and (7-3) precipitating and standing the filtered mixture to obtain the prepared paper polymer latex.
The invention has the following advantages:
1. according to the preparation device and the preparation method of the polymer latex for paper capable of being coated at high speed, provided by the invention, raw materials are stirred by the stirring assembly consisting of the stirring shaft, the stirring motor and the stirring paddle, and the intelligent detection of the reaction environment in the reaction kettle body is realized by the monitoring assembly, so that the purposes of simultaneously mixing and stirring different raw materials in batches simultaneously, realizing preparation intellectualization, improving the stirring efficiency, reducing the preparation quality of products and improving the preparation quality of the products are achieved.
2. The reaction kettle is divided into different reaction areas by the partition plate, so that two groups of raw materials can be conveniently and independently reacted at the same time, and the treatment efficiency and the treatment quality are improved.
3. The detachable connection of the stirring paddle and the stirring shaft is realized through the connecting piece consisting of the sealing cover, the stirring shaft sleeve, the lifting motor and the driving gear, and the use quality of the stirring paddle is further improved.
4. According to the invention, the stirring space of the stirring cabin is adjusted through the first adjusting plate, the second adjusting plate, the adjusting groove, the vertical groove, the adjusting stop block and the sealing plate, so that the raw materials are stirred in a complete space, the raw materials are prevented from fluctuating in the stirring process, and the stirring efficiency of the raw materials is improved.
5. According to the invention, the raw material at the top of the sealing cover is scraped by the cleaning scraper, so that the utilization rate of the raw material is improved, and the loss of the raw material is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
FIG. 1 is a schematic structural diagram of a high-speed coatable polymer latex preparation device for paper according to an embodiment of the invention;
FIG. 2 is an enlarged view of the structure of FIG. 1;
FIG. 3 is a schematic structural diagram of a separator in a high-speed coatable polymer latex manufacturing apparatus for paper according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an adjusting component in a high-speed coatable paper polymer latex preparing device according to an embodiment of the invention;
the corresponding part names indicated by the numbers and letters in the drawings:
11. reaction kettle body 21, feeding funnel 22, feeding pipe 23, discharging pipe 31, stirring shaft
32. Stirring motor 33, stirring paddle 34, partition 341, fixing plate 342 and mounting bar
343. Movable plate 344, overturning motor 35, adjusting assembly 351, first adjusting plate
352. Second adjusting plate 353, adjusting groove 354, vertical groove 355 and adjusting stopper
356. Sealing plate 357, discharge chute 36, connecting piece 361, sealing cover 362 and stirring shaft sleeve
363. Drive gear 364, lift teeth 365, clean the blades.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides a preparation device and a preparation method of high-speed-coatable polymer latex for paper, which have the working principle that raw materials are stirred by a stirring assembly consisting of a stirring shaft, a stirring motor and a stirring paddle, and the intelligent detection of the reaction environment in a reaction kettle body is realized by utilizing a monitoring assembly.
The present invention will be described in further detail with reference to examples and specific embodiments.
As shown in fig. 1 to 4, a high-speed coating polymer latex preparation device for paper comprises a processing assembly for processing raw materials, a feeding and discharging assembly arranged on the processing assembly for feeding and discharging the raw materials, a stirring assembly 3 arranged in a reaction kettle for stirring the raw materials, and a monitoring assembly arranged on the processing assembly.
Wherein:
the processing assembly comprises a reaction kettle body 11.
The feeding and discharging assembly comprises a feeding funnel 21, a feeding pipe 22 connected with each cabin body, a discharging pipe 23 arranged on each cabin body, and electromagnetic valves (not shown) arranged on the feeding pipe and the discharging pipe.
Stirring subassembly includes to set up internal (mixing) shaft 31 of reation kettle, drive (mixing) shaft pivoted agitator motor 32, set up at the epaxial several stirring rake 33 of stirring, set up and be in internal baffle 34 of reation kettle, the adjusting part 35 of setting on the baffle, the stirring rake passes through connecting piece 36 and sets up on the (mixing) shaft.
The stirring shaft is vertically arranged, the top end of the stirring shaft is abutted to the top of the reaction kettle body, and the bottom end of the stirring shaft penetrates through the bottom of the reaction kettle body and is communicated with the stirring motor.
The reaction kettle body is divided into an upper stirring cabin and a lower stirring cabin by the partition plate; the partition plate comprises a fixed plate 341 fixed in the reaction kettle body, four mounting bars 342 uniformly arranged on the fixed plate (the fixed plate is mounted in the reaction kettle body through the mounting bars), movable plates 343 arranged between the adjacent mounting bars, and a turnover motor 344 arranged between the movable plates; the side wall of the fixing plate between the adjacent mounting bars is an inward concave arc surface; the side edge of the interactive plate is tightly attached to the arc surface and the mounting strip; the turnover motor is arranged on the side wall of the reaction kettle, and a driving shaft of the turnover motor penetrates through the side wall of the reaction kettle body and is connected with the movable plate.
The upper side and the lower side of the partition board are provided with adjusting components 35 for adjusting the effective space of the cabin, each adjusting component comprises a first adjusting plate 351 arranged in the reaction kettle body, a second adjusting plate 352 arranged on the first adjusting plate, an adjusting groove 353 arranged on the inner wall of the reaction kettle body, a vertical groove 354 arranged in the side wall of the reaction kettle body and an adjusting stop block 355 arranged on the first adjusting plate, the first adjusting plate is provided with a sealing plate 356 for sealing the adjusting groove, the sealing plate is arranged in the vertical groove, and the upper side and the lower side of the first adjusting plate are provided with the sealing plates; the centers of the first adjusting plate and the second adjusting plate are both provided with through holes for the stirring shaft to pass through; the adjusting stop block is horizontally arranged, and the end part of the adjusting stop block is arranged on the outer side of the reaction kettle body; the first adjusting plate and the second adjusting plate are also provided with discharge chutes 357 for discharging materials, the discharge chutes are arranged at the edge positions, and the feed inlets are arranged at the edges of the discharge chutes; the second adjusting plate can rotate, and when the discharge chutes of the first adjusting plate and the second adjusting plate are staggered, space sealing is realized.
The connecting piece comprises a sealing cover 361 arranged on the fixed plate, a stirring shaft sleeve 362 arranged on the sealing cover, a lifting motor arranged in the sealing cover, a driving gear 363 arranged on the stirring shaft and a cleaning piece for cleaning the top of the sealing cover; the sealing cover is consistent with the fixing plate; the top end of the stirring shaft sleeve penetrates through the sealing cover, the bottom end of the stirring shaft sleeve is positioned in the sealing cover, and the stirring paddle is arranged on the side wall of the top of the stirring shaft sleeve; the stirring shaft sleeve is sleeved on the stirring shaft, and the inner wall of the stirring shaft sleeve is provided with a circle of driven teeth matched with the driving teeth (the circle of driven teeth is arranged at the middle lower part of the stirring shaft sleeve); the lifting motor is characterized in that a lifting gear is arranged on a driving shaft of the lifting motor, lifting sawteeth 364 matched with the lifting gear are arranged on the outer side wall of the stirring shaft sleeve, and the lifting sawteeth are arranged on the stirring shaft in a circle shape.
The cleaning element comprises a cleaning scraper 366 arranged on the stirring shaft sleeve, which rotates with the stirring shaft.
The monitoring assembly comprises a temperature sensor (not shown) and a pressure sensor (not shown) arranged on the reaction kettle body.
The specific use steps of the invention are as follows: referring again to fig. 1 to 4, in actual use, the preparation method of the polymer latex for paper is as follows:
(1) vacuumizing the reaction kettle body, and then arranging an adjusting plate at a proper position according to the requirement of raw materials to be stirred;
(2) heating the temperature in the reaction cabin to an initial set temperature, and pouring the raw materials into the specified reaction cabin;
(3) continuing to heat the reaction cabin to the specified temperature, and starting a stirrer to stir the raw materials;
(4) mixing the separately stirred raw materials, and simultaneously keeping the temperature in the cabin constant;
(5) supplementing liquid in the stirring process;
(6) degassing treatment is carried out, the stirring shaft is driven to rotate by utilizing the power generated during degassing,
(7-1) cooling the mixture;
(7-2) cooling and filtering the mixed material;
and (7-3) precipitating and standing the filtered mixture to obtain the prepared paper polymer latex.
The whole preparation process is carried out in a reaction kettle body, and the stirring process is as follows:
(setting it is necessary to stir the two groups of raw materials and mix and stir the mixed raw materials again)
According to the actual preparation requirement, the first adjusting plate 351 is adjusted to a proper height through the adjusting stop 355, the discharge chutes 357 on the first adjusting plate 351 and the second adjusting plate 352 are located at the same position, and the sealing plate 356 moves along with the up-and-down movement of the first adjusting plate to block the vertical chute, so that the upper stirring chamber and the lower stirring chamber are always in a closed state (the adjusting components in the upper stirring chamber and the lower stirring chamber are independent from each other);
then according to the demand, enter into the agitator tank with the raw materials in the feeder hopper 21 through inlet pipe 22, through the solenoid valve that sets up on the inlet pipe, can realize the automatic control of inlet pipe feeding, adjustment.
After the feeding is accomplished, rotate the second regulating plate and make the blown down tank on the second regulating plate stagger mutually with the blown down tank of first regulating plate, thereby the seal of stirred tank has been guaranteed (for the convenience adjust the second regulating plate, can set up the regulation window on the stirred tank, and set up reference column and locating hole on first regulating plate and second regulating plate), open the lift motor this moment, through promotion sawtooth 364 realization stirred tank cover's on drive gear 363 and the stirred tank cover rise (or decline), until the inner wall of stirred tank cover meshes with the drive tooth on the (mixing) shaft 31 mutually, open the agitator motor this moment, drive the stirring rake and rotate under the effect of (mixing) shaft 31 and connecting piece, realize two under-deck stirring process in step.
After the stirring is accomplished, the (mixing) shaft is closed, the position of first regulating plate is readjusted, and it is just right to be the blown down tank on first regulating plate and the second regulating plate, under the effect of upset motor 344, overturn the fly leaf to the level form, the raw materials that is in last stirring cabin this moment drops to the second regulating plate in stirring cabin down, set up the subassembly of unloading in stirring cabin down (the subassembly of unloading includes the installation piece that sets up on the (mixing) shaft, the ejector pad of setting in installation piece bottom, the top of ejector pad is equipped with one row of expanding spring, the bottom of installation piece is equipped with the mounting groove, expanding spring sets up in the mounting groove, thereby realize the adjustment of ejector pad's height, the ejector pad is installed on the (mixing) shaft, constantly fall down the material from the blown down tank, clearance scraper 365 clears up the sealing boot top simultaneously, the utilization ratio of raw materials has further been promoted.
And after the pouring is finished, adjusting the second adjusting plate in the lower stirring cabin again, and stirring the raw materials totally at the moment. And discharging the material from the discharge pipe after stirring.
In the operation process of the equipment, the stirring of the upper stirring cabin and the lower stirring cabin are mutually independent, and the stirring can be performed on materials with different stirring requirements.
According to the preparation device and the preparation method of the polymer latex for paper capable of being coated at high speed, provided by the invention, raw materials are stirred by the stirring assembly consisting of the stirring shaft, the stirring motor and the stirring paddle, and the intelligent detection of the reaction environment in the reaction kettle body is realized by utilizing the monitoring assembly.
While the above description is directed to the preferred embodiment of the present invention, it is apparent that the present invention provides an apparatus and method for preparing a polymer latex for paper capable of high-speed coating, and that several variations and modifications can be made therein by one skilled in the art without departing from the spirit and scope thereof.
Claims (8)
1. A preparation device of polymer latex for paper capable of being coated at high speed is characterized by comprising a processing component for processing raw materials, a feeding and discharging component arranged on the processing component and used for feeding and discharging the raw materials, a stirring component arranged in a reaction kettle and used for stirring the raw materials and a monitoring component arranged on the processing component;
the processing assembly comprises a reaction kettle body;
the stirring assembly comprises a stirring shaft arranged in the reaction kettle body, a stirring motor for driving the stirring shaft to rotate, and a plurality of stirring paddles arranged on the stirring shaft, wherein the stirring paddles are arranged on the stirring shaft through connecting pieces;
the monitoring assembly comprises a temperature sensor and a pressure sensor which are arranged on the reaction kettle body.
2. The apparatus for preparing a polymer latex for paper capable of being coated at high speed according to claim 1, wherein the stirring assembly further comprises a partition plate disposed in the reaction vessel, the partition plate dividing the reaction vessel into an upper stirring chamber and a lower stirring chamber;
the partition plate comprises a fixed plate fixed in the reaction kettle body, four mounting bars uniformly arranged on the fixed plate, movable plates arranged between the adjacent mounting bars and a turnover motor arranged between the movable plates;
the side wall of the fixing plate between the adjacent mounting bars is an inward concave arc surface; the side edge of the interactive plate is tightly attached to the arc surface and the mounting strip;
the turnover motor is arranged on the side wall of the reaction kettle, and a driving shaft of the turnover motor penetrates through the side wall of the reaction kettle body and is connected with the movable plate.
3. The device for preparing the paper polymer latex capable of being coated at high speed according to claim 2, wherein the stirring shaft is vertically arranged, the top end of the stirring shaft abuts against the top of the reaction kettle body, and the bottom end of the stirring shaft penetrates through the bottom of the reaction kettle body to be communicated with the stirring motor;
the connecting piece comprises a sealing cover arranged on the fixing plate, a stirring shaft sleeve arranged on the sealing cover, a lifting motor arranged in the sealing cover and a driving gear arranged on the stirring shaft; the sealing cover is consistent with the fixing plate; the top end of the stirring shaft sleeve penetrates through the sealing cover, the bottom end of the stirring shaft sleeve is positioned in the sealing cover, and the stirring paddle is arranged on the side wall of the top of the stirring shaft sleeve; the stirring shaft sleeve is sleeved on the stirring shaft, and the inner wall of the stirring shaft sleeve is provided with a circle of driven teeth matched with the driving teeth;
the lifting motor is characterized in that a lifting gear is arranged on a driving shaft of the lifting motor, lifting sawteeth matched with the lifting gear are arranged on the outer side wall of the stirring shaft sleeve, and the lifting sawteeth are arranged on the stirring shaft in a circle shape.
4. The apparatus according to claim 2, wherein the partition plate has an upper and a lower adjusting members for adjusting the effective space of the chamber, the adjusting members comprise a first adjusting plate disposed in the reaction vessel, a second adjusting plate disposed on the first adjusting plate, an adjusting groove disposed on the inner wall of the reaction vessel, a vertical groove disposed in the side wall of the reaction vessel, and an adjusting stopper disposed on the first adjusting plate, the first adjusting plate has a sealing plate for sealing the adjusting groove, the sealing plate is disposed in the vertical groove, and the sealing plates are disposed on the upper and lower sides of the first adjusting plate; the centers of the first adjusting plate and the second adjusting plate are both provided with through holes for the stirring shaft to pass through; the adjusting stop block is horizontally arranged, and the end part of the adjusting stop block is arranged on the outer side of the reaction kettle body;
still be equipped with the blown down tank that supplies the material ejection of compact on first regulating plate and the second regulating plate, the extension line of blown down tank passes through the circular shape of first regulating plate.
5. The apparatus of claim 2, wherein the feeding and discharging assembly comprises a feeding hopper, a feeding pipe connected to each chamber, a discharging pipe disposed on each chamber, and a solenoid valve disposed on the feeding pipe and the discharging pipe.
6. The apparatus for preparing a high-speed coatable polymer latex for paper according to claim 3, wherein said connecting member further comprises a cleaning member disposed on top of the sealing cap; the cleaning piece includes the clearance scraper of setting on the stirring axle sleeve, the clearance scraper is along with the (mixing) shaft rotates.
7. A preparation method of high-speed coatable polymer latex for paper is characterized by comprising the following steps:
(1) vacuumizing the reaction kettle body, and then arranging an adjusting plate at a proper position according to the requirement of raw materials to be stirred;
(2) heating the temperature in the reaction cabin to an initial set temperature, and pouring the raw materials into the specified reaction cabin;
(3) continuing to heat the reaction cabin to the specified temperature, and starting a stirrer to stir the raw materials;
(4) mixing the separately stirred raw materials, stirring again, and keeping the temperature in the cabin constant;
(5) supplementing liquid in the stirring process;
(6) degassing treatment is carried out, the stirring shaft is driven to rotate by utilizing the power generated during degassing,
(7) and cooling and standing to obtain the prepared paper polymer latex.
8. The method for preparing the high-speed coatable polymer latex for paper according to claim 7, wherein the step (7) is specifically as follows:
(7-1) cooling the mixture;
(7-2) cooling and filtering the mixed material;
and (7-3) precipitating and standing the filtered mixture to obtain the prepared paper polymer latex.
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| CN202111217280.8A CN113926409A (en) | 2021-10-19 | 2021-10-19 | Preparation device and preparation method of high-speed-coatable polymer latex for paper |
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Application publication date: 20220114 |