CN116328635A - Coating method and device for producing ultra-dispersed titanium dioxide - Google Patents
Coating method and device for producing ultra-dispersed titanium dioxide Download PDFInfo
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- CN116328635A CN116328635A CN202310444503.7A CN202310444503A CN116328635A CN 116328635 A CN116328635 A CN 116328635A CN 202310444503 A CN202310444503 A CN 202310444503A CN 116328635 A CN116328635 A CN 116328635A
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 118
- 238000000576 coating method Methods 0.000 title claims abstract description 83
- 239000004408 titanium dioxide Substances 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 164
- 239000011248 coating agent Substances 0.000 claims abstract description 147
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000006185 dispersion Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 13
- 239000001038 titanium pigment Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 41
- 230000006835 compression Effects 0.000 claims description 32
- 238000007906 compression Methods 0.000 claims description 32
- 239000000919 ceramic Substances 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 18
- 239000012188 paraffin wax Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 5
- 239000011521 glass Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 235000010215 titanium dioxide Nutrition 0.000 abstract description 66
- 239000002002 slurry Substances 0.000 abstract description 35
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 230000009471 action Effects 0.000 description 20
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 14
- 238000001816 cooling Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 2
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000002186 photoactivation Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- -1 titanium dioxide Chemical compound 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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Classifications
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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
- B01F35/71—Feed mechanisms
- B01F35/712—Feed mechanisms for feeding fluids
-
- 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
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/213—Measuring of the properties of the mixtures, e.g. temperature, density or colour
-
- 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
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
-
- 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
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71815—Feed mechanisms characterised by the means for feeding the components to the mixer using vibrations, e.g. standing waves or ultrasonic vibrations
-
- 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
- B01F35/90—Heating or cooling systems
- B01F35/92—Heating or cooling systems for heating the outside of the receptacle, e.g. heated jackets or burners
-
- 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
- B01F35/90—Heating or cooling systems
- B01F2035/98—Cooling
-
- 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
- B01F35/90—Heating or cooling systems
- B01F2035/99—Heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The invention discloses a coating device for producing ultra-dispersed titanium dioxide, which comprises a tank body, wherein the tank body is provided with a motor which is in driving connection with stirring teeth; the top of the tank body is provided with a feeding mechanism, the feeding mechanism atomizes the coating agent, the atomized coating agent is pressurized and is rapidly sent into the titanium pigment solvent through a hollow pipe and a dispersion disc, and the coating agent fully reacts with the titanium pigment to realize coating; the water bath tube also comprises a temperature adjusting unit, when the temperature in the tank body is increased, the flow rate of liquid in the water bath tube is increased, redundant heat is taken away rapidly, the constant temperature of the tank body is maintained, and the stable coating is ensured; the full contact of the coating agent and the titanium white slurry is promoted, the coating efficiency is improved, and the uniformity and the dispersibility of the titanium dioxide coating are improved.
Description
Technical Field
The invention belongs to the technical field of titanium dioxide production, and particularly relates to a coating method and device for producing ultra-dispersed titanium dioxide.
Background
Titanium dioxide, namely titanium dioxide, is an important chemical raw material, and although the titanium dioxide is stable in physical and chemical properties and excellent in photochemical properties, due to the lattice defects of titanium dioxide particles, a plurality of photoactivation points exist on the surface of the titanium dioxide, and when the titanium dioxide absorbs energy from ultraviolet rays, oxygen atoms on titanium dioxide lattices lose two electrons and are released, so that the lattices of the titanium dioxide are anoxic. The released nascent oxygen has high activity, and any organic matters around the titanium dioxide particles can be oxidized by the active oxygen, so that a series of physical and chemical changes such as yellowing, light loss, pulverization and the like are caused to the coating, and the service life of the product is influenced.
Coating the surface of the titanium dioxide particles with oxides of aluminum, silicon, titanium, zinc and the like, so that a barrier can be formed between the titanium dioxide and the medium, thereby preventing or reducing the action of active oxygen on the medium and improving the weather resistance of the product; the organic matter is coated on the surface of the titanium dioxide particles, so that the dispersibility of the titanium dioxide in an organic medium can be effectively improved.
Placing titanium white slurry into a constant temperature environment in an inorganic coating, adding a coating agent for ageing, pouring the aged slurry into a funnel for suction filtration and washing until the conductivity is qualified; transferring the filter cake into a porcelain crucible, continuously drying for 7 hours in a baking oven with the temperature of 140 ℃, and crushing to obtain coated titanium dioxide; the existing equipment generally adopts a pipeline bracket to add the coating agent, and in the stirring process, the coating agent and the titanium white slurry are slowly fused, the coating efficiency is low, the uneven stirring can lead to uneven coating of the titanium white, the uneven thickness of the coating can lead to the use of the titanium white, the property is different, and the property of the thin coating titanium white is unstable; and the constant temperature adopts a water bath method, and alkaline substances are added in the stirring process of the titanium white slurry and the coating agent to generate heat, so that the temperature in the reaction chamber is increased, and the traditional water bath method is not beneficial to rapidly reducing the redundant heat and influencing the coating quality; in addition, the quality degree of the coating is generally judged empirically or in time at present, so that the judgment error is large and the improvement is needed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a coating method and a coating device for producing super-dispersed titanium dioxide, which solve the problems in the background art.
The invention provides the following technical scheme:
the coating device for the production of the ultra-dispersed titanium dioxide comprises a tank body, wherein the tank body is provided with a motor which is in driving connection with stirring teeth; the top of the tank body is provided with a feeding mechanism, the feeding mechanism atomizes the coating agent, the atomized coating agent is pressurized and is rapidly sent into the titanium pigment solvent through a hollow pipe and a dispersion disc, and the coating agent fully reacts with the titanium pigment to realize coating;
the water bath tube also comprises a temperature adjusting unit, when the temperature in the tank body is increased, the flow rate of liquid in the water bath tube is increased, redundant heat is taken away rapidly, the constant temperature of the tank body is maintained, and the stable coating is ensured;
the temperature regulating unit comprises a shell, a water adding pipe and a water guide pipe are arranged in the shell, the water adding pipe and the water guide pipe are communicated with the water bath pipe, a driving mechanism is arranged between the water adding pipe and the water guide pipe, and the driving mechanism enables water in the water adding pipe to rapidly flow into the water guide pipe, so that the rapid flow of the water in the water bath pipe is promoted to take away redundant heat in the tank body, and the tank body is facilitated to keep constant temperature; the driving mechanism is driven by an impeller arranged in the water adding pipe;
The impeller is connected with a first bevel gear, the first bevel gear can be in meshed connection with a second bevel gear, the second bevel gear can be in meshed connection with a third bevel gear, and the third bevel gear is in driving connection with the driving mechanism; the second bevel gear can be separated from the first bevel gear and the third bevel gear, so that the intermittent control driving mechanism is achieved.
Preferably, the temperature adjusting unit comprises a shell, the shell is connected with the outer wall of the pipe body, a driving mechanism is arranged in the shell, the driving mechanism is arranged between the water adding pipe and the water guide pipe, the other end of the water adding pipe is provided with a water adding port, and water with proper temperature is added through the water adding port to perform water bath; the driving mechanism comprises a sealing box body, the sealing box body is connected with the inner wall of the shell through a fixed rod, a double cylinder body is arranged at the position, close to the top, of the inner part of the sealing box body, a partition plate is arranged between the double cylinder bodies, a crankshaft is rotatably arranged on the double cylinder bodies, and one end of the crankshaft is connected with a third bevel gear; the double cylinders comprise an upper cylinder body and a lower cylinder body, a crankshaft is positioned in the upper cylinder body and connected with a first piston plate, and a crankshaft is positioned in the lower cylinder body and connected with a second piston plate; the upper cylinder is provided with an air inlet and a first air outlet, the lower cylinder is provided with an air inlet pipe and a second air outlet, and the air inlet pipe is arranged inside the partition plate.
Preferably, the inner side of the air inlet is rotatably provided with a baffle, the air inlet is subjected to unidirectional air inlet through the baffle, the outer side of the first air outlet is rotatably provided with the baffle, and the first air outlet is subjected to unidirectional air outlet; the baffle is rotatably arranged at one end of the air inlet pipe, which is positioned at the lower cylinder, the air inlet pipe is used for unidirectionally feeding air, the baffle is rotatably arranged at the outer side of the second air outlet, and the second air outlet is used for unidirectionally discharging air; the lower part of the double cylinder body is provided with a liquid cavity, the liquid cavity is communicated with the first air outlet and the second air outlet, the side wall of the liquid cavity is connected with a water adding pipe, and the bottom of the liquid cavity is connected with a water guide pipe.
Preferably, one side of the second bevel gear is connected with a movable rod, the other end of the movable rod penetrates through a sealing pipe body, the movable rod is in clearance sliding connection with the sealing pipe body, a rubber sleeve is arranged on one side, far away from the movable rod, of the inner part of the sealing pipe body, and paraffin is arranged in the rubber sleeve; the sealing sleeve middle position is provided with a push plate, one side of the push plate is closely connected with the rubber sleeve, the other side of the push plate is connected with a movable rod, a first spring is arranged on the movable rod, one end of the first spring is connected with the inside of the sealing tube, and the other end of the first spring is connected with the push plate.
Preferably, the feeding mechanism comprises an upper box body, the top wall in the upper box body is connected with a piezoelectric ceramic group, the piezoelectric ceramic groups are connected in series or in parallel, and two ends of the piezoelectric ceramic group are connected with alternating current through wires; the free end of the piezoelectric ceramic group is connected with a connecting plate, the other end of the connecting plate is at least connected with a second spring, and the other end of the second spring is connected with a vibrating piece.
Preferably, an inner box body is arranged in the upper box body, the inner box body is connected with the upper box body through a support rod, a feeding pipe is connected to the position, close to the top, of the inner box body, and the other end of the feeding pipe extends to the outer part of the upper box body; the vibrating piece is arranged in the inner box body in a suspending way, and the second spring penetrates through the top of the inner box body and is in clearance connection with the inner box body; one side of connecting plate is connected with the connecting rod, and the connecting rod below is connected with the telescopic link perpendicularly, the telescopic link other end is equipped with fast forward mechanism, fast forward mechanism top is connected with the pipe, and fast forward mechanism passes through pipe and interior box body intercommunication, and fast forward mechanism's bottom is connected with communicating pipe, communicates with the hollow tube through communicating pipe.
Preferably, the fast-forward mechanism comprises a sealing cylinder, a partition plate is arranged in the sealing cylinder, one side of the partition plate is an air cavity, and the air cavity is communicated with the guide pipe; the other side of the partition plate is provided with a compression cavity, a piston block is arranged in the compression cavity, and the piston block is connected with the telescopic rod; the partition plate is provided with an air guide hole near the bottom, and the air guide hole is used for one-way ventilation from the air cavity to the compression cavity through a baffle plate which is rotatably arranged on the inner side; the bottom of the compression cavity is provided with an exhaust hole which is communicated with the communicating pipe, and the exhaust hole is communicated with the communicating pipe unidirectionally from the compression cavity through a baffle plate which is arranged in a rotating way on the outer side.
Preferably, the detecting unit comprises a sleeve, the sleeve is inlaid at the top of the tank body, one end of the sleeve extends to the inside of the tank body, a hollow box is arranged in the sleeve, a pressing rod is connected above the hollow box, the other end of the pressing rod is connected with a pressing plate, a third spring is arranged on the pressing rod, one end of the third spring is connected with the hollow box, and the other end of the third spring is connected with the inner wall of the sleeve.
Preferably, the side wall of the sleeve is provided with a first hole, the symmetrical side of the first hole is provided with a second hole, transparent layers are arranged in the first hole and the second hole, and the transparent layers are glass layers or plastic layers; one side of the first hole is provided with an illuminating lamp, and one side of the second hole is provided with a light sensor.
Preferably, the bottom of the hollow box is provided with a liquid-permeable hole, the inner side of the liquid-permeable hole is provided with a sealing plate, one side of the sealing plate is connected with a fourth spring, and the other end of the fourth spring is connected with a supporting rod arranged in the liquid-permeable hole; the opposite side of closing plate is connected with the stay cord, the stay cord runs through hollow box, and with hollow box clearance sliding connection, the stay cord slides and sets up in the inside of depression bar, and the stay cord distributes along the depression bar axial, and the other end of stay cord is connected with the pull rod, and the pull rod sets up the top at the pressure disk.
Preferably, the device adopts a coating method, firstly, titanium white slurry with certain concentration is added into a tank body from a charging port; regulating the rotation speed of stirring teeth and the water bath temperature (65 ℃), adding sodium hexametaphosphate solution, dripping 0.1mol/L sodium hydroxide solution or sulfuric acid solution to control the pH value of the system to 9.5-10.5, and performing dispersion treatment for 30 minutes; secondly, regulating the temperature of the water bath, adding an atomized coating agent through a feeding mechanism, and simultaneously dripping 0.1mol/L sodium hydroxide solution or sulfuric acid solution to control the pH of the system to 9.5-10.5 for coating; thirdly, aging for 2 hours at the water bath temperature of 60-65 ℃; discharging the aged slurry from a discharge port, and performing suction filtration and washing until the conductivity is qualified; and continuously drying the filter material in an oven at 140 ℃ for 7 hours, and finally crushing to obtain the coated titanium dioxide.
In addition, the specific process of adding the coating agent in the feeding mechanism is that the coating agent is added into the inner box body through the feeding pipe, the liquid level of the coating agent is higher than that of the vibration piece, alternating current connected with two ends of the piezoelectric ceramic group is electrified, the piezoelectric ceramic group can generate periodic deformation due to the inverse piezoelectric effect, so that the connecting plate, the second spring and the vibration piece are driven to vibrate, the vibration amplitude of the connecting plate and the second spring can be controlled by changing the applied current, the frequency of the vibration piece is controlled to be higher when the current is larger, the vibration frequency of the vibration piece is higher than 20000Hz, the vibration piece generates ultrasonic waves, and cavitation is generated on the coating agent contacted with the vibration piece by the ultrasonic waves, so that the coating agent is atomized; when the connecting plate moves back and forth periodically along with the piezoelectric ceramic group, the connecting plate drives the connecting rod and the telescopic rod to move back and forth, the telescopic rod drives the fast-forward mechanism to rapidly send the atomized coating agent in the inner box body into the dispersing disc through the hollow tube, the diameter of the dispersing hole is 1.5-3mm through a plurality of dispersing holes arranged on the dispersing disc, and the atomized coating agent is fully fused into the titanium white slurry; the full contact of the coating agent and the titanium white slurry is promoted, the coating efficiency is improved, and the uniformity and the dispersibility of the titanium white coating are improved; when the quick-forward mechanism works and the telescopic rod drives the piston block to move upwards, the baffle plate of the air guide hole is opened under the action of negative pressure, the atomized coating agent in the inner box body is introduced into the compression cavity through the guide pipe and the air cavity under the action of negative pressure, and at the moment, the baffle plate of the air exhaust hole is closed under the action of negative pressure to prevent the hollow pipe The slurry and the atomized coating agent enter a compression cavity; when the telescopic rod drives the piston block to move downwards, the baffle of the air guide hole is closed under the pressure action, so that the atomized coating agent in the compression cavity is prevented from reversely entering the inner box body, meanwhile, the baffle of the air exhaust hole is opened under the pressure, the atomized coating agent in the compression cavity is dispersed into the titanium white slurry through the hollow pipe and the dispersion disc, the speed of dispersing the atomized coating agent into the titanium white slurry is improved, the coating speed is further improved, atomized coating agent particles are finer, and the coating uniformity is further improved. In order to further improve the uniformity and the coating efficiency of the coating, the flow rate of the atomized coating agent is v, and the pressure P in the compression cavity, the density rho of the atomized coating agent, the dispersion S of the atomized coating agent and the radius r of the guide pipe satisfy the following conditions: v=λ· ((2ρ (C-P)) 1/2 +S/πr 2 ) The method comprises the steps of carrying out a first treatment on the surface of the In the above formula, v units, m/s, ρ units kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the C is Bernoulli equation constant, P units Pa, S units m 3 S; r is m, lambda is a relation coefficient, and the value range is 0.32-0.86. The above formula is an empirical formula, only numerical calculation is performed, and unit calculation is not performed.
In addition, when water bath heating is carried out through the water bath pipe, water with proper temperature is added through the water adding pipe, flows through the water bath pipe and slowly and circularly flows out from the outlet of the water bath pipe, so that the constant temperature of the water bath is ensured; when water bath is carried out at a proper temperature (60-63 ℃), as paraffin is filled in the rubber sleeve of the sealing tube body, the paraffin is not melted to be solid, the volume is small, the initial position of the moving rod is close to one end of the push plate, the second bevel gear, the first bevel gear and the third bevel gear are in a separation state, at the moment, the first bevel gear cannot drive the third bevel gear to rotate, and the driving mechanism does not work; when sodium hydroxide or sulfuric acid solution is added and stirring teeth continuously stir, the temperature in the tank body rises along with the sodium hydroxide or sulfuric acid solution, and when the temperature is higher than the required water bath temperature, paraffin in the rubber sleeve expands along with the temperature, the volume of the paraffin expands, the push plate is pushed to drive the movable rod and the second bevel gear to move, the second bevel gear is meshed with the first bevel gear and the third bevel gear, the impeller drives the first bevel gear to be meshed with the second bevel gear to drive the third bevel gear to rotate through water circulation in the water adding pipe, the third bevel gear drives the driving mechanism, the water flow speed of the water adding pipe to the water bath pipe is increased, the water circulation speed of the water bath pipe is increased, redundant heat generated by the tank body is taken away, rapid cooling is facilitated, the water bath temperature reaches a set range, the water bath constant temperature is ensured, the stability and the safety of the coating are ensured, and the generation of byproducts is prevented; after the temperature of the single tank body is reduced, the paraffin temperature is reduced, the paraffin is solidified, the volume is reduced, the elastic force of the second spring drives the push plate to move in the opposite direction, and therefore the moving plate and the second bevel gear are driven to be separated from the first bevel gear and the third bevel gear, and the driving mechanism stops working.
The driving mechanism promotes the process of accelerating water flow, namely, when the third bevel gear rotates, the crankshaft is rotated, the crankshaft rotates in the double cylinder body to drive the first piston plate and the second piston plate to move in opposite directions, when the first piston plate moves rightwards, the rotating baffle of the air inlet is closed under the pressure action, the rotating baffle of the first air outlet is opened under the pressure action, and air rapidly enters the liquid cavity, at the moment, when the second piston plate moves leftwards, the rotating baffle of the air inlet pipe is opened under the negative pressure action, external air enters the lower cylinder body, and the rotating baffle of the second air outlet is closed under the negative pressure action; through the process, gas can be continuously input into the liquid cavity, the air pressure in the liquid cavity is increased, water in the liquid cavity is caused to rapidly enter the water bath pipe from the water guide pipe, the pressure in the water bath pipe is indirectly increased, the water bath pipe is caused to rapidly circulate, the excessive heat is helped to be taken away, and rapid cooling is realized; it should be understood that the diameter of the water supply pipe is equal to the diameter of the water pipe, a certain amount of water can be stored in the liquid chamber by providing the water supply pipe, and the water supply pipe supplies water to the liquid chamber in one direction through the water supply port.
Compared with the prior art, the invention has the following beneficial effects:
According to the coating method and device for producing the super-dispersed titanium dioxide, when the connecting plate moves back and forth along with the periodic reciprocating motion of the piezoelectric ceramic group, the connecting plate drives the connecting rod and the telescopic rod to move back and forth, the telescopic rod drives the fast-forward mechanism to rapidly send the atomized coating agent in the inner box body into the dispersing disc through the hollow tube, and the atomized coating agent is fully fused into the titanium dioxide slurry through the plurality of dispersing holes arranged on the dispersing disc; the full contact of the coating agent and the titanium white slurry is promoted, the coating efficiency is improved, and the uniformity and the dispersibility of the titanium dioxide coating are improved.
By arranging the fast-forward mechanism, the atomized coating agent in the compression cavity is promoted to be dispersed into the titanium white slurry through the hollow pipe and the dispersion disc, the speed of dispersing the atomized coating agent into the titanium white slurry is improved, the coating speed is further improved, atomized coating agent particles are finer, and the uniformity of coating is further improved. By limiting the relation between the flow rate of the atomized coating agent, the pressure in the compression cavity, the density of the atomized coating agent, the dispersion amount of the atomized coating agent and the radius of the guide pipe, the uniformity and the coating efficiency of the coating are further improved.
Through setting up temperature regulation unit, the impeller rotates through the hydrologic cycle in the water pipe, drives first bevel gear meshing and connects second bevel gear drive third bevel gear and rotate, third bevel gear drive actuating mechanism promotes the water velocity of water pipe in to the water bath pipe, increases the speed of hydrologic cycle in the water bath pipe to take away the unnecessary heat that the jar body produced, helps quick cooling, makes the water bath temperature reach the scope of settlement, guarantees water bath constant temperature, guarantees the stability and the security of diolame, prevents the accessory substance production.
Through actuating mechanism, can be constantly with gaseous input to the liquid intracavity, the atmospheric pressure in the liquid intracavity increases, makes the water in the liquid intracavity get into the water bath pipe from the aqueduct fast, has indirectly increased the pressure in the water bath pipe, makes its quick cycle, helps taking away unnecessary heat, realizes quick cooling.
By arranging the detection unit, the coating condition of the titanium white slurry is detected, the detection efficiency is improved, the accuracy of judging the coating condition is improved, and the stability of the titanium white coating quality is further improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a top view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the structure of the temperature adjusting unit of the present invention.
Fig. 3 is a schematic view of the drive mechanism of the present invention.
Fig. 4 is a partially enlarged schematic view of the structure of the present invention.
FIG. 5 is a schematic view of the charging mechanism of the present invention.
Fig. 6 is a schematic view of the fast forward mechanism of the present invention.
Fig. 7 is a schematic view of the structure of the dispersion disk of the present invention.
FIG. 8 is a schematic diagram of the structure of the detecting unit of the present invention.
Fig. 9 is a schematic view of the hollow box structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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. It will be apparent that the described embodiments are some, but not all, of the embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1-4, the coating device for producing the ultra-dispersed titanium dioxide comprises a tank body 1, wherein the tank body 1 is provided with a motor 2, and the motor 2 is in driving connection with stirring teeth 3; the top of the tank body 1 is provided with a feeding mechanism 6, the feeding mechanism 6 atomizes the coating agent, the atomized coating agent is pressurized and is rapidly sent into the titanium pigment solvent through a hollow pipe 8 and a dispersion disc 9, and the coating agent fully reacts with the titanium pigment to realize coating; the device also comprises a temperature adjusting unit 5, when the temperature in the tank body 1 is increased through the temperature adjusting unit 5, the flow rate of the liquid in the water bath pipe 4 is increased, redundant heat is taken away rapidly, the constant temperature of the tank body 1 is maintained, and the stable coating is ensured; the temperature regulating unit 5 comprises a shell 51, a water adding pipe 53 and a water guide pipe 510 which are communicated with the water bath pipe 4 are arranged in the shell 51, a driving mechanism 52 is arranged between the water adding pipe 53 and the water guide pipe 510, and the driving mechanism 52 enables water in the water adding pipe 53 to quickly flow into the water guide pipe 510, so that the water in the water bath pipe 4 is promoted to quickly flow to take away excessive heat in the tank 1, and the tank 1 is helped to keep constant temperature; the driving mechanism 52 is driven by an impeller 55 provided in the water feed pipe 53; the impeller 55 is connected with a first bevel gear 56, the first bevel gear 56 can be in meshed connection with a second bevel gear 57, the second bevel gear 57 can be in meshed connection with a third bevel gear 58, and the third bevel gear 58 is in driving connection with the driving mechanism 52; the second bevel gear 57 can be separated from both the first bevel gear 56 and the third bevel gear 58 to achieve intermittent control of the drive mechanism 52.
The temperature regulating unit 5 comprises a shell 51, the shell 51 is connected with the outer wall of the pipe body, a driving mechanism 52 is arranged in the shell 51, the driving mechanism 52 is arranged between a water adding pipe 53 and a water guide pipe 510, a water adding port 54 is arranged at the other end of the water adding pipe 53, and water with proper temperature is added through the water adding port 54 for water bath; the driving mechanism 52 comprises a sealing box 521, the sealing box 521 is connected with the inner wall of the shell 51 through a fixed rod 59, a double cylinder 522 is arranged in the sealing box 521 near the top, a partition plate 523 is arranged between the double cylinders 522, a crankshaft 524 is rotatably arranged between the double cylinders 522, and one end of the crankshaft 524 is connected with the third bevel gear 58; the double cylinder 522 includes an upper cylinder and a lower cylinder, a first piston plate 525 is connected to the crankshaft 524 in the upper cylinder, and a second piston plate 526 is connected to the crankshaft 524 in the lower cylinder; the upper cylinder is provided with an air inlet 527 and a first air outlet 528, the lower cylinder is provided with an air inlet pipe 529 and a second air outlet 5210, and the air inlet pipe 529 is arranged inside the partition plate 523.
The inner side of the air inlet 527 is rotatably provided with a baffle, the air inlet 527 is subjected to unidirectional air inlet through the baffle, the outer side of the first air outlet 528 is rotatably provided with the baffle, and the first air outlet 528 is subjected to unidirectional air outlet; a baffle is rotatably arranged at one end of the air inlet pipe 529 positioned on the lower cylinder, the air inlet pipe 529 is used for unidirectionally feeding air, the baffle is rotatably arranged at the outer side of the second air outlet 5210, and the second air outlet 5210 is used for unidirectionally discharging air; the liquid chamber 5211 is arranged below the double cylinder 522, the liquid chamber 5211 is communicated with the first air outlet 528 and the second air outlet 5210, the side wall of the liquid chamber 5211 is connected with the water adding pipe 53, and the bottom of the liquid chamber 5211 is connected with the water guiding pipe 510.
One side of the second bevel gear 57 is connected with a movable rod 515, the other end of the movable rod 515 is provided with a sealing tube 511 in a penetrating manner, the movable rod 515 is in clearance sliding connection with the sealing tube 511, one side, far away from the movable rod 515, of the sealing tube 511 is provided with a rubber sleeve 512, and paraffin 513 is arranged in the rubber sleeve 512; a push plate 514 is arranged in the middle of the sealing sleeve 71, one side of the push plate 514 is closely connected with the rubber sleeve 512, the other side of the push plate 514 is connected with a movable rod 515, a first spring 516 is arranged on the movable rod 515, one end of the first spring 516 is connected with the inside of the sealing tube 511, and the other end of the first spring 516 is connected with the push plate 514.
The coating method adopted by the device comprises the steps that firstly, titanium white slurry with a certain concentration is added into a tank body 1 from a feed inlet 11; regulating the rotation speed of the stirring teeth 3 and the water bath temperature to 65 ℃, adding sodium hexametaphosphate solution, dripping 0.1mol/L sodium hydroxide solution or sulfuric acid solution to control the pH value of the system to 9.5-10.5, and performing dispersion treatment for 30 minutes; secondly, regulating the temperature of the water bath, adding an atomized coating agent through a feeding mechanism 6, and simultaneously dripping 0.1mol/L sodium hydroxide solution or sulfuric acid solution to control the pH value of the system to 9.5-10.5 for coating; thirdly, aging for 2 hours at the water bath temperature of 60-65 ℃; discharging the aged slurry from a discharge hole 12, and performing suction filtration and washing until the conductivity is qualified; and continuously drying the filter material in an oven at 140 ℃ for 7 hours, and finally crushing to obtain the coated titanium dioxide.
When water bath heating is carried out through the water bath pipe 4, water with proper temperature is added through the water adding pipe 53, flows through the water bath pipe 4 and slowly and circularly flows out from the outlet of the water bath pipe 4, so that the constant temperature of the water bath is ensured; when water bath is carried out at a proper temperature of 60-63 ℃, as the paraffin 513 is filled in the rubber sleeve 512 of the sealing tube body 511, the paraffin 513 is not melted to be solid, the volume is small, the initial position of the moving rod 515 is close to one end of the push plate 514, the second bevel gear 57 is separated from the first bevel gear 56 and the third bevel gear 58, at the moment, the first bevel gear 56 cannot drive the third bevel gear 58 to rotate, and the driving mechanism 52 does not work; when sodium hydroxide or sulfuric acid solution is added and stirring teeth 3 stir continuously, the temperature in tank 1 rises along with the sodium hydroxide or sulfuric acid solution, when the temperature is higher than the required water bath temperature, paraffin 513 in rubber sleeve 512 expands along with the temperature, pushing push plate 514 drives moving rod 515 and second bevel gear 57 to move, second bevel gear 57 is meshed with first bevel gear 56 and third bevel gear 58, impeller 55 drives first bevel gear 56 to be meshed with second bevel gear 57 to drive third bevel gear 58 to rotate through water circulation in water adding pipe 53, third bevel gear 58 drives driving mechanism 52, the water flow speed of water adding pipe 53 to water bath pipe 4 is increased, the water circulation speed of water bath pipe 4 is increased, thereby taking away redundant heat generated by tank 1, facilitating rapid cooling, ensuring that the water bath temperature reaches a set range, guaranteeing constant temperature of water bath, guaranteeing stability and safety of coating film and preventing by-product generation; after the temperature of the single tank 1 is reduced, the temperature of the paraffin 513 is reduced, the paraffin 513 is solidified, the volume is reduced, the elastic force of the second spring 64 drives the push plate 514 to move in the opposite direction, and accordingly the moving plate and the second bevel gear 57 are driven to be separated from the first bevel gear 56 and the third bevel gear 58, and the driving mechanism 52 stops working.
The process of accelerating the water flow by the driving mechanism 52 is that when the third bevel gear 58 rotates, the crankshaft 524 rotates in the double cylinder 522 to drive the first piston plate 525 and the second piston plate 526 to move in opposite directions, when the first piston plate 525 moves rightwards, the rotating baffle of the air inlet 527 is closed under the pressure action, the rotating baffle of the first air outlet 528 is opened under the pressure action, the air rapidly enters the liquid cavity 5211, and at the moment, when the second piston plate 526 moves leftwards, the rotating baffle of the air inlet pipe 529 is opened under the negative pressure action, and the air is outsideThe boundary gas enters the lower cylinder, and the rotating baffle of the second air outlet 5210 is closed under the negative pressure; through the process, gas can be continuously input into the liquid cavity 5211, the air pressure in the liquid cavity 5211 is increased, water in the liquid cavity 5211 is caused to rapidly enter the water bath pipe 4 from the water guide pipe 510, the pressure in the water bath pipe 4 is indirectly increased, the water bath pipe 4 is caused to rapidly circulate, and the rapid cooling is realized by being beneficial to taking away redundant heat; it should be understood that the water feed pipe 53 has a diameter equal to that of the water pipe, a certain amount of water can be stored by providing the liquid chamber 5211, and the water feed pipe 53 is supplied with water from the water feed port 54 to the liquid chamber 5211 in one direction. In order to further ensure the water flow speed in the water bath pipe 4, the risk of bursting caused by overlarge pressure in the liquid cavity 5211 is prevented, or the pressure is too small to increase the water flow speed, the purpose of rapid cooling is achieved, the water flow speed V in the water bath pipe 4 and the pressure p of the liquid cavity 5211, the radius R of the water bath pipe 4 and the water adding quantity q are met, and V=beta·ppi R 2 +q/t; in the formula, the unit of V is m/s, the unit of p is Pascal, the unit of R is m, and the unit of q is kg; t is unit time, beta is a relation coefficient, and the value range is 0.16-0.33. And (5) an empirical formula, and directly performing numerical calculation.
Embodiment two:
referring to fig. 5-7, on the basis of the first embodiment, the feeding mechanism 6 includes an upper case 61, the inner top wall of the upper case 61 is connected with a piezoelectric ceramic group 62, the piezoelectric ceramic groups 62 are connected in series or in parallel, and two ends of the piezoelectric ceramic group 62 are connected with alternating current through wires; the free end of the piezoelectric ceramic group 62 is connected with a connecting plate 63, the other end of the connecting plate 63 is connected with at least one second spring 64, and the other end of the second spring 64 is connected with a vibrating piece 66.
An inner box body 65 is arranged in the upper box body 61, the inner box body 65 is connected with the upper box body 61 through a support rod 68, a feeding pipe 67 is connected to the position, close to the top, of the inner box body 65, and the other end of the feeding pipe 67 extends to the outside of the upper box body 61; the vibrating piece 66 is suspended in the interior of the inner box body 65, and the second spring 64 penetrates through the top of the inner box body 65 and is connected with the inner box body 65 in a clearance manner; one side of the connecting plate 63 is connected with a connecting rod 69, a telescopic rod 610 is vertically connected below the connecting rod 69, the other end of the telescopic rod 610 is provided with a fast-forward mechanism 611, the top of the fast-forward mechanism 611 is connected with a guide pipe 6113, the fast-forward mechanism 611 is communicated with the inner box body 65 through the guide pipe 6113, the bottom of the fast-forward mechanism 611 is connected with a communicating pipe 612, and the fast-forward mechanism 611 is communicated with the hollow pipe 8 through the communicating pipe 612.
The fast-forward mechanism 611 comprises a sealing cylinder 6111, a partition plate 6112 is arranged in the sealing cylinder 6111, one side of the partition plate 6112 is provided with an air cavity 6114, and the air cavity 6114 is communicated with a guide pipe 6113; the other side of the partition plate 6112 is provided with a compression cavity 6118, a piston block 6115 is arranged in the compression cavity 6118, and the piston block 6115 is connected with the telescopic rod 610; the partition plate 6112 is provided with an air guide hole 6116 near the bottom, and the air guide hole 6116 carries out unidirectional ventilation from the air cavity 6114 to the compression cavity 6118 through a baffle plate which is arranged in a rotating way on the inner side; the bottom of the compression cavity 6118 is provided with an exhaust hole 6117, the exhaust hole 6117 is communicated with the communicating pipe 612, and the exhaust hole 6117 is in one-way ventilation from the compression cavity 6118 to the communicating pipe 612 through a baffle plate which is arranged in an outside rotating mode.
The specific process of adding the coating agent in the feeding mechanism 6 is that the coating agent is added into an inner box body 65 through a feeding pipe 67, the liquid level of the coating agent is higher than that of a vibrating piece 66, alternating current connected to two ends of a piezoelectric ceramic group 62 is electrified, the piezoelectric ceramic group 62 can generate periodic deformation due to the inverse piezoelectric effect, so that a connecting plate 63, a second spring 64 and the vibrating piece 66 are driven to vibrate, the vibration amplitude of the connecting plate 63 and the second spring 64 can be controlled by changing the applied current, the frequency of the vibrating piece 66 is controlled, the larger the current is, the higher the vibration frequency of the vibrating piece 66 is, when the vibration frequency of the vibrating piece 66 is higher than 20000Hz, the vibrating piece 66 generates ultrasonic waves, and the ultrasonic waves generate cavitation on the coating agent contacted with the vibrating piece, so that the coating agent is atomized; when the connecting plate 63 moves back and forth periodically along with the piezoelectric ceramic group 62, the connecting plate 63 drives the connecting rod 69 and the telescopic rod 610 to move back and forth, the telescopic rod 610 drives the fast-forward mechanism 611 to rapidly send the atomized coating agent in the inner box body 65 into the dispersing disc 9 through the hollow tube 8, and the atomized coating agent is fully mixed into the titanium white slurry through the plurality of dispersing holes 10 arranged on the dispersing disc 9, wherein the diameters of the dispersing holes 10 are 1.5-3 mm; the full contact of the coating agent and the titanium white slurry is promoted, the coating efficiency is improved, and the uniformity and the dispersibility of the titanium white coating are improved; when the fast-forward mechanism 611 is in operation, the telescopic rod 610 is provided with When the movable piston block 6115 moves upwards, the baffle plate of the air guide hole 6116 is opened under the action of negative pressure, the atomized coating agent in the inner box body 65 enters the compression cavity 6118 through the guide pipe 6113 and the air cavity 6114 under the action of negative pressure, and at the moment, the baffle plate of the air exhaust hole 6117 is closed under the action of negative pressure, so that the slurry in the hollow pipe 8 and the atomized coating agent are prevented from entering the compression cavity 6118; when the telescopic rod 610 drives the piston block 6115 to move downwards, the baffle of the air guide hole 6116 is closed under the pressure action, so that the atomized coating agent in the compression cavity 6118 is prevented from reversely entering the inner box body 65, meanwhile, the baffle of the air exhaust hole 6117 is opened under the pressure, the atomized coating agent in the compression cavity 6118 is dispersed into the titanium white slurry through the hollow pipe 8 and the dispersion disc 9, the speed of dispersing the atomized coating agent into the titanium white slurry is improved, the coating speed is further improved, atomized coating agent particles are finer, and the uniformity of coating is further improved. In order to further improve the uniformity and the coating efficiency of the coating, the flow rate of the atomized coating agent is v, and the pressure P in the compression cavity 6118, the density ρ of the atomized coating agent, the dispersion amount S of the atomized coating agent and the radius r of the conduit 6113 are as follows: v=λ· ((2ρ (C-P)) 1/2 +S/πr 2 ) The method comprises the steps of carrying out a first treatment on the surface of the In the above formula, v units, m/s, ρ units kg/m 3 The method comprises the steps of carrying out a first treatment on the surface of the C is Bernoulli equation constant, P units Pa, S units m 3 S; r is m, lambda is a relation coefficient, and the value range is 0.32-0.86. The above formula is an empirical formula, only numerical calculation is performed, and unit calculation is not performed.
Embodiment III:
as shown in fig. 8-9, on the basis of the first embodiment, the detection unit 7 includes a sleeve 71, the sleeve 71 is inlaid and arranged at the top of the tank 1, one end of the sleeve 71 extends to the inside of the tank 1, a hollow box 72 is arranged in the sleeve 71, a compression bar 73 is connected above the hollow box 72, the other end of the compression bar 73 is connected with a pressure plate 74, a third spring 75 is arranged on the compression bar 73, one end of the third spring 75 is connected with the hollow box 72, and the other end of the third spring 75 is connected with the inner wall of the sleeve 71.
The side wall of the sleeve 71 is provided with a first hole 76, the symmetrical side of the first hole 76 is provided with a second hole 77, transparent layers 78 are arranged in the first hole 76 and the second hole 77, and the transparent layers 78 are glass layers or plastic layers; one side of the first hole 76 is provided with an illumination lamp 79 and one side of the second hole 77 is provided with a light sensor 710.
The bottom of the hollow box 72 is provided with a liquid permeation hole 711, the inner side of the liquid permeation hole 711 is provided with a sealing plate 712, one side of the sealing plate 712 is connected with a fourth spring 713, and the other end of the fourth spring 713 is connected with a supporting rod arranged in the liquid permeation hole 711; the opposite side of closing plate 712 is connected with stay 714, and stay 714 runs through hollow box 72, and with hollow box 72 clearance sliding connection, stay 714 slip sets up in the inside of depression bar 73, and stay 714 distributes along depression bar 73 axial, and the other end of stay 714 is connected with pull rod 715, and pull rod 715 sets up the top at pressure disk 74.
After the coating agent is added for a certain time, the coating degree is detected by the detection unit 7, so that the stability of the coating is improved, the condition that the coating is incomplete or after the coating is finished is prevented, and the product quality of the coated titanium dioxide is improved; during detection, the pressure plate 74 is pressed downwards, the third spring 75 stretches to drive the pressure rod 73 and the hollow box 72 to move downwards, after the hollow box 72 contacts the surface of the titanium white slurry liquid, the sealing plate 712 moves upwards under the action of pressure to be opened, the fourth spring 713 stretches, titanium white slurry enters the hollow box 72 through the liquid-permeable hole 711, after the hollow box 72 is full, the pressure plate 74 is loosened, the hollow box 72 is driven to be separated from the liquid page through the elastic force of the third spring 75, and the position of the hollow box 72 is reset; meanwhile, the hollow box 72 is separated from the page, the sealing plate 712 is not under the action of the liquid pressure below, the sealing plate 712 is closed under the action of the elastic force of the fourth spring 713 and the action of the liquid pressure in the hollow box 72, and the liquid in the hollow box 72 does not flow out from the liquid-permeable hole 711; after the hollow box 72 is reset, the irradiation lamp 79 is started, irradiation light is emitted to the light sensor 710 through the first hole 76 and the second hole 77, light passing through the titanium white slurry is obtained through the light sensor 710, the light signal received by the light sensor 710 is subjected to contrast analysis through the controller, the coating condition of the titanium white slurry is reflected, the accuracy of judging the coating condition is improved, and the stability of the coating quality of the titanium white powder is further improved. After detection, the pull rod 715 is pulled upwards to drive the pull rope 714 and the sealing plate 712 to move upwards, so that the titanium white slurry in the hollow box 72 is released into the tank body 1, coating is continued, and residual slurry is prevented from remaining in the hollow box 72.
The device obtained through the technical scheme is a coating method and device for producing the ultra-dispersed titanium dioxide, when the connecting plate moves back and forth along with the piezoelectric ceramic group in a periodic way, the connecting plate drives the connecting rod and the telescopic rod to move back and forth, the telescopic rod drives the fast-forwarding mechanism to send the atomized coating agent in the inner box body into the dispersing disc through the hollow tube, and the atomized coating agent is fully fused into the titanium white slurry through a plurality of dispersing holes formed in the dispersing disc; the full contact of the coating agent and the titanium white slurry is promoted, the coating efficiency is improved, and the uniformity and the dispersibility of the titanium dioxide coating are improved. By arranging the fast-forward mechanism, the atomized coating agent in the compression cavity is promoted to be dispersed into the titanium white slurry through the hollow pipe and the dispersion disc, the speed of dispersing the atomized coating agent into the titanium white slurry is improved, the coating speed is further improved, atomized coating agent particles are finer, and the uniformity of coating is further improved. By limiting the relation between the flow rate of the atomized coating agent, the pressure in the compression cavity, the density of the atomized coating agent, the dispersion amount of the atomized coating agent and the radius of the guide pipe, the uniformity and the coating efficiency of the coating are further improved. Through setting up temperature regulation unit, the impeller rotates through the hydrologic cycle in the water pipe, drives first bevel gear meshing and connects second bevel gear drive third bevel gear and rotate, third bevel gear drive actuating mechanism promotes the water velocity of water pipe in to the water bath pipe, increases the speed of hydrologic cycle in the water bath pipe to take away the unnecessary heat that the jar body produced, helps quick cooling, makes the water bath temperature reach the scope of settlement, guarantees water bath constant temperature, guarantees the stability and the security of diolame, prevents the accessory substance production. Through actuating mechanism, can be constantly with gaseous input to the liquid intracavity, the atmospheric pressure in the liquid intracavity increases, makes the water in the liquid intracavity get into the water bath pipe from the aqueduct fast, has indirectly increased the pressure in the water bath pipe, makes its quick cycle, helps taking away unnecessary heat, realizes quick cooling. By arranging the detection unit, the coating condition of the titanium white slurry is detected, the detection efficiency is improved, the accuracy of judging the coating condition is improved, and the stability of the titanium white coating quality is further improved.
Other technical solutions not described in detail in the present invention are all prior art in the field, and are not described in detail herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention will be apparent to those skilled in the art; any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The coating device for the production of the ultra-dispersed titanium dioxide is characterized in that the tank body (1) is provided with a motor (2), and the motor (2) is in driving connection with stirring teeth (3); the top of the tank body (1) is provided with a feeding mechanism (6), the feeding mechanism (6) atomizes the coating agent, the atomized coating agent is pressurized and is rapidly sent into the titanium pigment solvent through a hollow pipe (8) and a dispersion disc (9), and the coating agent fully reacts with the titanium pigment to realize coating;
the device also comprises a temperature adjusting unit (5), when the temperature in the tank body (1) is increased through the temperature adjusting unit (5), the flow rate of liquid in the water bath pipe (4) is increased, redundant heat is rapidly taken away, the constant temperature of the tank body (1) is maintained, and the stable coating is ensured;
The temperature regulating unit (5) comprises a shell (51), a water adding pipe (53) and a water guide pipe (510) which are communicated with the water bath pipe (4) are arranged in the shell (51), a driving mechanism (52) is arranged between the water adding pipe (53) and the water guide pipe (510), and the driving mechanism (52) enables water in the water adding pipe (53) to quickly flow into the water guide pipe (510), so that the water in the water bath pipe (4) is promoted to quickly flow to take away redundant heat in the tank body (1), and the tank body (1) is helped to keep constant temperature; the driving mechanism (52) is driven by an impeller (55) arranged in the water adding pipe (53);
the impeller (55) is connected with a first bevel gear (56), the first bevel gear (56) can be in meshed connection with a second bevel gear (57), the second bevel gear (57) can be in meshed connection with a third bevel gear (58), and the third bevel gear (58) is in driving connection with the driving mechanism (52); the second bevel gear (57) can be separated from the first bevel gear (56) and the third bevel gear (58), so that the intermittent control driving mechanism (52) is realized.
2. The coating device for producing the ultra-dispersed titanium dioxide according to claim 1, wherein the temperature regulating unit (5) comprises a shell (51), the shell (51) is connected with the outer wall of a pipe body, a driving mechanism (52) is arranged in the shell (51), the driving mechanism (52) is arranged between a water adding pipe (53) and a water guide pipe (510), a water adding port (54) is arranged at the other end of the water adding pipe (53), and water with a proper temperature is added through the water adding port (54) to carry out water bath; the driving mechanism (52) comprises a sealing box body (521), the sealing box body (521) is connected with the inner wall of the shell (51) through a fixed rod (59) arranged, a double cylinder body (522) is arranged at a position, close to the top, inside the sealing box body (521), a partition plate (523) is arranged between the double cylinder bodies (522), a crankshaft (524) is rotatably arranged on the double cylinder bodies (522), and one end of the crankshaft (524) is connected with a third bevel gear (58); the double cylinder (522) comprises an upper cylinder and a lower cylinder, a first piston plate (525) is connected in the upper cylinder in a connecting way, and a second piston plate (526) is connected in the lower cylinder in the connecting way of the crankshaft (524); the upper cylinder is provided with an air inlet (527) and a first air outlet (528), the lower cylinder is provided with an air inlet pipe (529) and a second air outlet (5210), and the air inlet pipe (529) is arranged inside the partition plate (523).
3. The coating device for producing the ultra-dispersed titanium dioxide according to claim 2, wherein a baffle is rotatably arranged on the inner side of the air inlet (527), the air inlet (527) is subjected to unidirectional air inlet through the baffle, the baffle is rotatably arranged on the outer side of the first air outlet (528), and the first air outlet (528) is subjected to unidirectional air outlet; a baffle is rotatably arranged at one end of the air inlet pipe (529) positioned at the lower cylinder, one-way air inlet is formed in the air inlet pipe (529), a baffle is rotatably arranged at the outer side of the second air outlet (5210), and one-way air outlet is formed in the second air outlet (5210); the lower part of the double cylinder body (522) is provided with a liquid cavity (5211), the liquid cavity (5211) is communicated with a first air outlet (528) and a second air outlet (5210), the side wall of the liquid cavity (5211) is connected with a water adding pipe (53), and the bottom of the liquid cavity (5211) is connected with a water guide pipe (510).
4. The coating device for producing the ultra-dispersed titanium dioxide according to claim 1, wherein one side of the second bevel gear (57) is connected with a movable rod (515), the other end of the movable rod (515) is provided with a sealing pipe body (511) in a penetrating manner, the movable rod (515) is in clearance sliding connection with the sealing pipe body (511), one side, far away from the movable rod (515), of the sealing pipe body (511) is provided with a rubber sleeve (512), and paraffin (513) is arranged in the rubber sleeve (512); the sealing sleeve (71) intermediate position is equipped with push pedal (514), and push pedal (514) one side and rubber sleeve (512) close joint, and the opposite side and the movable rod (515) of push pedal (514) are connected, are equipped with first spring (516) on movable rod (515), first spring (516) one end and sealed body (511) internal connection, the other end is connected with push pedal (514).
5. The coating device for producing the ultra-dispersed titanium dioxide according to claim 1, wherein the feeding mechanism (6) comprises an upper box body (61), the inner top wall of the upper box body (61) is connected with a piezoelectric ceramic group (62), the piezoelectric ceramic groups (62) are connected in series or in parallel, and two ends of the piezoelectric ceramic group (62) are connected with alternating current through wires; the free end of the piezoelectric ceramic group (62) is connected with a connecting plate (63), the other end of the connecting plate (63) is at least connected with a second spring (64), and the other end of the second spring (64) is connected with a vibrating piece (66).
6. The coating device for producing the ultra-dispersed titanium dioxide according to claim 5, wherein an inner box body (65) is arranged inside the upper box body (61), the inner box body (65) is connected with the upper box body (61) through a supporting rod (68) arranged, a feeding pipe (67) is connected to the position, close to the top, of the inner box body (65), and the other end of the feeding pipe (67) extends to the outside of the upper box body (61); the vibrating piece (66) is suspended in the interior of the inner box body (65), and the second spring (64) penetrates through the top of the inner box body (65) and is in clearance connection with the inner box body (65); one side of connecting plate (63) is connected with connecting rod (69), and connecting rod (69) below is connected with telescopic link (610) perpendicularly, the telescopic link (610) other end is equipped with fast forward mechanism (611), fast forward mechanism (611) top is connected with pipe (6113), and fast forward mechanism (611) are connected with interior box body (65) through pipe (6113) intercommunication, and the bottom of fast forward mechanism (611) is connected with communicating pipe (612), communicates with hollow tube (8) through communicating pipe (612).
7. The coating device for producing the ultra-dispersed titanium dioxide according to claim 6, wherein the fast-forward mechanism (611) comprises a sealing cylinder (6111), a partition plate (6112) is arranged inside the sealing cylinder (6111), one side of the partition plate (6112) is an air cavity (6114), and the air cavity (6114) is communicated with a guide pipe (6113); the other side of the partition plate (6112) is provided with a compression cavity (6118), a piston block (6115) is arranged in the compression cavity (6118), and the piston block (6115) is connected with the telescopic rod (610); the partition plate (6112) is provided with an air guide hole (6116) near the bottom, and the air guide hole (6116) is in one-way ventilation from the air cavity (6114) to the compression cavity (6118) through a baffle plate which is arranged in a rotating way; the bottom of the compression cavity (6118) is provided with an exhaust hole (6117), the exhaust hole (6117) is communicated with the communicating pipe (612), and the exhaust hole (6117) is used for one-way ventilation from the compression cavity (6118) to the communicating pipe (612) through a baffle plate which is arranged in an outside rotating mode.
8. The coating device for producing the ultra-dispersed titanium dioxide according to claim 1, wherein the detection unit (7) comprises a sleeve (71), the sleeve (71) is embedded at the top of the tank body (1), one end of the sleeve (71) extends to the inside of the tank body (1), a hollow box (72) is arranged in the sleeve (71), a pressing rod (73) is connected above the hollow box (72), the other end of the pressing rod (73) is connected with a pressing plate (74), a third spring (75) is arranged on the pressing rod (73), one end of the third spring (75) is connected with the hollow box (72), and the other end of the third spring is connected with the inner wall of the sleeve (71).
9. The coating device for producing the ultra-dispersed titanium dioxide according to claim 8, wherein a first hole (76) is formed in the side wall of the sleeve (71), a second hole (77) is formed in the symmetrical side of the first hole (76), transparent layers (78) are arranged in the first hole (76) and the second hole (77), and the transparent layers (78) are glass layers or plastic layers; one side of the first hole (76) is provided with an illuminating lamp (79), and one side of the second hole (77) is provided with a light sensor (710).
10. The coating device for producing the ultra-dispersed titanium dioxide according to claim 9, wherein a liquid-permeable hole (711) is formed in the bottom of the hollow box (72), a sealing plate (712) is arranged on the inner side of the liquid-permeable hole (711), one side of the sealing plate (712) is connected with a fourth spring (713), and the other end of the fourth spring (713) is connected with a supporting rod arranged in the liquid-permeable hole (711); the opposite side of closing plate (712) is connected with stay cord (714), stay cord (714) run through hollow box (72), and with hollow box (72) clearance sliding connection, stay cord (714) slip sets up in the inside of depression bar (73), and stay cord (714) are along depression bar (73) axial distribution, and the other end of stay cord (714) is connected with pull rod (715), and pull rod (715) set up the top at pressure disk (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310444503.7A CN116328635A (en) | 2023-04-24 | 2023-04-24 | Coating method and device for producing ultra-dispersed titanium dioxide |
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| CN202310444503.7A CN116328635A (en) | 2023-04-24 | 2023-04-24 | Coating method and device for producing ultra-dispersed titanium dioxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117258629A (en) * | 2023-11-22 | 2023-12-22 | 河北田加力生物科技股份有限公司 | Broken fish stirring device and method for preparing amino acid fertilizer by using deep sea fish |
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2023
- 2023-04-24 CN CN202310444503.7A patent/CN116328635A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117258629A (en) * | 2023-11-22 | 2023-12-22 | 河北田加力生物科技股份有限公司 | Broken fish stirring device and method for preparing amino acid fertilizer by using deep sea fish |
| CN117258629B (en) * | 2023-11-22 | 2024-01-30 | 河北田加力生物科技股份有限公司 | Broken fish stirring device and method for preparing amino acid fertilizer by using deep sea fish |
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