CN113083316A - Modified TiO (titanium dioxide)2Preparation method of (1) and indoor ultraviolet lamp device - Google Patents
Modified TiO (titanium dioxide)2Preparation method of (1) and indoor ultraviolet lamp device Download PDFInfo
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims description 18
- 239000004408 titanium dioxide Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 63
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910000604 Ferrochrome Inorganic materials 0.000 claims abstract description 38
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 34
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 21
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000002360 preparation method Methods 0.000 claims description 25
- 238000003756 stirring Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 19
- 238000013016 damping Methods 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 10
- 229910001710 laterite Inorganic materials 0.000 claims description 3
- 239000011504 laterite Substances 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 abstract description 9
- 238000012986 modification Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000007146 photocatalysis Methods 0.000 description 3
- 230000002195 synergetic effect Effects 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000001698 pyrogenic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
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- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
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- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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Abstract
The invention discloses a modified TiO2Belonging to the field of photocatalytic materials. The material comprises tetrabutyl titanate, absolute ethyl alcohol, dilute nitric acid solution, ferrochromium slag superfine powder and laterite-nickel ore slag superfine powder. The invention solves the problem of using metal elements and rare earth elements to couple TiO2The modification has the problems of high cost and complex process, and reduces the modified TiO2The production cost is about 60 percent, the market competitiveness is improved, and the policy requirements of relevant energy conservation, environmental protection and circular economy are met.
Description
Technical Field
The invention belongs to the field of photocatalysis, and particularly relates to modified TiO2A method for producing the same, and an indoor ultraviolet lamp device.
Background
The ferrochromium slag is chromium-containing waste slag generated in the process of smelting chromium-containing ferroalloy by a pyrogenic process, mainly generated in the process of smelting high-carbon ferrochromium by a submerged arc furnace process, and the main chemical component of the ferrochromium slag is SiO2、Fe2O3、Al2O3、CaO、MgO、Cr2O3、SO3、P2O5And the like. The laterite-nickel slag is a nonmetallic mineral which is mainly a nonmetallic mineral and is generated after laterite-nickel ore is subjected to acid leaching to recover the metallic mineral, and the main chemical component of the nonmetallic mineral is SiO2、FeO、Al2O3、CaO、MgO、Cr2O3MnO, etc. At present, the stacking of a large amount of ferrochromium slag and laterite-nickel slag not only occupies valuable land, but also causes pollution to the surrounding environment and underground water. Therefore, how to utilize ferrochromium slag and laterite-nickel slag in a large scale and with high added value to realize environment reduction and enterprise synergy is a problem which needs to be solved urgently.
At present, inorganic TiO pigment with good thermal stability of metal elements and rare earth elements is generally adopted2Modified to improve TiO2The purposes of very low quantum efficiency, low photocatalytic activity and low visible light utilization rate are achieved, and the improvement of the modified TiO is realized2Absorption capacity for visible light.
At present, metal elements and rare earth elements are utilized to couple TiO2The modification has the problems of high cost and complex process, if the metal elements contained in the ferrochromium slag and the laterite-nickel slag are utilized to carry out modification on TiO2The aim of degrading formaldehyde by photocatalysis can be realized by modifying and setting through an ultraviolet lamp device, and the modified TiO can be greatly reduced2The cost of the method is low, and the utilization additional value of the ferrochromium slag and the laterite-nickel slag can be improved.
Disclosure of Invention
To solve the problem of using metal elements and rare earth elements to TiO2The modification has the problems of high cost and complex process, and the invention utilizes ferrochromium slag and laterite-nickel slag to perform modification on TiO2The modification is carried out, the stirring speed, the stirring time, the stirring temperature, the heating speed, the calcining temperature and the like are controlled, and an ultraviolet lamp tube is prepared for an indoor formaldehyde treatment facility and is installed to accelerate and improve the indoor formaldehyde purification performance.
In order to solve the above technical problems, the present invention is realized by the following technical solutions.
The invention provides a modified TiO2The preparation method comprises the following steps:
s1, formula proportion:
the formula comprises the following raw materials in percentage by weight:
the tetrabutyl titanate and the absolute ethyl alcohol are analytically pure; the concentration of the dilute nitric acid solution is 40%; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes;
s2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 30-60 min under the condition of 600-800 r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform transparent solution obtained from a1 under the condition of 500 r/min-700 r/min, and stirring for 45 min-90 min under the condition of 300 r/min-500 r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to be heated to 600-800 ℃ at the speed of 1.5-2.5 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochromium slag-laterite nickel ore slag synergistically modified TiO2。
Specifically, the preparation principle of the invention is as follows: FeO/Fe contained in ferrochrome slag and laterite-nickel slag by using dilute nitric acid solution2O3、Al2O3、MgO、Cr2O3、P2O5MnO and the like are partially dissolved and then TiO is added2Modifying to realize the synergistic modification of the ferrochromium slag and the laterite-nickel ore slag to obtain TiO2The formaldehyde is degraded by photocatalysis under a visible light source, particularly under ultraviolet light.
Preferably, the disc rack comprises a disc rack, a main shaft is arranged on the disc rack and rotates along the axis of the disc rack, a rotating assembly is arranged on the main shaft and rotates along the axis of the disc rack;
a driving part is arranged in the disc frame and is suitable for driving the rotating assembly to rotate;
the disc frame is provided with an adjusting part and a control monitoring assembly, the adjusting part is fixedly connected with the disc frame, and the control monitoring assembly is suitable for monitoring indoor ultraviolet intensity;
the main shaft is provided with an ultraviolet lamp, the outer end of the main shaft is provided with a rotating part, anda rotor rotating coaxially with the main shaft, the rotor being coated on the outer surface with the modified TiO produced by the production method of claim 12。
Preferably, be provided with the mounting groove in the disc frame, mounting groove and disc frame body coupling, the main shaft is located the mounting groove, install the toothed disc on the main shaft, the toothed disc can be dismantled with the main shaft and be connected, the toothed disc is suitable for and rotates along the main shaft axis, the driving piece is suitable for and drives the toothed disc and rotate with the toothed disc meshing mutually.
Preferably, the driving members are provided with three groups, the three groups of driving members are distributed in the disc rack at equal intervals, and the three groups of driving members are suitable for driving the disc rack to rotate clockwise or anticlockwise.
Preferably, the driving part comprises a motor, a first bevel gear and a second bevel gear, a driving box is installed in the disc rack, the motor is installed in the driving box, the motor is detachably connected with the driving box, the first bevel gear is installed at the output end of the motor, the first bevel gear is meshed with the second bevel gear, a rotating column is installed at the center of the second bevel gear, the rotating column is fixedly connected with the second bevel gear, a first gear is installed on the second bevel gear, the first gear and the second bevel gear rotate coaxially, a notch is formed in one side, opposite to the gear disk, of the driving box, and the first gear is suitable for penetrating the notch and meshed with the gear disk.
Preferably, the height of the gear plate is not less than the height of the mounting groove.
Preferably, the rotating part comprises a rotating frame, the rotating frame is installed on the main shaft, the rotating frame and the main shaft rotate coaxially, an installation slot is formed in the main shaft, the ultraviolet lamp is installed in the installation slot, and the ultraviolet lamp is detachably connected with the installation slot.
Preferably, a grating plate is arranged in the rotating frame, the grating plate is fixedly connected with the rotating frame, a plurality of groups of grating plates and installation slots are arranged on the grating plate, and the surfaces of the grating plate and the rotating frame are coated with the modified TiO prepared by the preparation method of claim 12。
Preferably, the adjusting part comprises an annular plate, the annular plate is fixedly connected with the disc frame, a wave groove is formed in the annular plate, a reflecting plate is arranged on one side, back to the main shaft, of the grating plate, a reflecting mirror surface is arranged on one side, opposite to the light grid plate, of the reflecting plate, the bottom end of the reflecting plate is rotatably connected with the rotating frame, two groups of rollers are arranged below one side, back to the light grid plate, of the reflecting plate, damping springs are connected onto the reflecting mirror surface, the damping springs are arranged in two groups, one ends of the two groups of damping springs are fixedly connected with the grating plate, the other ends of the two groups of damping springs are fixedly connected with the reflecting mirror surface, the rollers are matched with the wave groove, and the reflecting plate is suitable for up-.
Preferably, the control monitoring assembly comprises a processor, an ultraviolet sensor, an infrared pyroelectric sensor and an alarm unit, wherein the alarm unit comprises a loudspeaker, and the loudspeaker is suitable for being mounted at the bottom of the disc rack;
the ultraviolet sensor is arranged on the disc frame, the disc frame is provided with an inclined frame, the disc frame is detachably connected with the inclined frame, the ultraviolet sensor is arranged on the inclined frame, and the ultraviolet sensor is suitable for monitoring the intensity of periodic ultraviolet rays;
the infrared pyroelectric sensor is arranged on the side surface of the disc frame and is suitable for sensing infrared light emitted by a human body and sending sensing information to the processor;
the processor is suitable for monitoring the condition that a human body enters the room or alarming by a loudspeaker when the ultraviolet intensity is wrong;
the ultraviolet lamp is characterized in that a cavity is formed in the main shaft, a first power supply is arranged in the cavity, a second power supply is arranged in the disc frame and is suitable for supplying power to the ultraviolet lamp, and the second power supply is suitable for supplying power to the motor and the control and monitoring assembly.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention solves the problem of using metal elements and rare earth elements to couple TiO2The modification has the problems of high cost and complex process, and reduces the modified TiO2The production cost is about 60 percent, and the market is improvedField competitiveness.
2. The invention relates to modified TiO2Preparation method of (1) and indoor ultraviolet lamp device2The preparation method of the composite material meets the policy requirements of relevant energy conservation, environmental protection and circular economy.
3. The invention aims at the safety problems that the existing indoor formaldehyde treatment is insufficient, a homeowner cannot live in time, the cost is too high, and the health of teenagers is affected;
4. the invention aims at the existing ultraviolet light irradiation TiO2The efficiency is low, the uniform rotation cannot be realized, and the personnel can be effectively reminded when entering the device.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a block diagram of an indoor UV lamp assembly of the present invention;
FIG. 2 is an enlarged view of section A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view of the indoor UV lamp assembly of the invention;
FIG. 4 is an enlarged view of section B of FIG. 3 of the present invention;
FIG. 5 is a schematic diagram of a portion of the connection of the control and monitoring assembly processor of the present invention.
In the figure: 1. a disc frame; 2. a main shaft; 3. mounting grooves; 4. a gear plate; 5. a motor; 6. a first bevel gear; 7. a second bevel gear; 8. a drive cartridge; 9. rotating the column; 10. a first gear; 11. a rotating frame; 12. installing a slot; 13. an ultraviolet lamp; 14. a grating plate; 15. an annular plate; 16. a reflective plate; 17. a roller; 18. a damping spring; 19. a processor; 20. an ultraviolet sensor; 21. an infrared pyroelectric sensor; 22. a horn; 23. an inclined frame; 24. a first power supply; 25. and a second power supply.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1
Modified TiO (titanium dioxide)2The preparation method and the indoor ultraviolet lamp device of the invention take 100g of the product as an example and use the following components in percentage by mass:
s1, formula proportion
The tetrabutyl titanate is analytically pure; the absolute ethyl alcohol is analytically pure; the concentration of the dilute nitric acid solution is 40%; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes;
s2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 40min under the condition of 600r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform transparent solution obtained from a1 under the condition of 600r/min, and stirring for 90min under the condition of 500r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to rise to 650 ℃ at the speed of 2 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochromium slag-laterite-nickel ore slag synergistically modified TiO2。
As shown in figures 1 to 5, the invention relates to TiO prepared by the synergistic modification of ferrochromium slag-laterite nickel ore slag2Be used for indoor ultraviolet lamp device, including disc frame 1, be provided with main shaft 2 on disc frame 1, main shaft 2 rotates along the axis on disc frame 1, is provided with rotating assembly on main shaft 2, rotatesThe assembly rotates along the axis of the disc frame 1;
a driving part is arranged in the disc frame 1 and is suitable for driving the rotating assembly to rotate;
the disc rack 1 is provided with an adjusting piece and a control monitoring assembly, the adjusting piece is fixedly connected with the disc rack 1, and the control monitoring assembly is suitable for monitoring indoor ultraviolet intensity;
the main shaft 2 is provided with an ultraviolet lamp 13, the outer end of the main shaft 2 is provided with a rotating part which rotates coaxially with the main shaft 2, and the outer surface of the rotating part is coated with the modified TiO prepared by the preparation method of claim 12。
Be provided with mounting groove 3 in the disc frame 1, mounting groove 3 and disc frame 1 body coupling, main shaft 2 is located mounting groove 3, installs gear disc 4 on the main shaft 2, and gear disc 4 can be dismantled with main shaft 2 and be connected, and gear disc 4 is suitable for and rotates along 2 axes of main shaft, and the driving piece is suitable for and drives gear disc 4 and rotate with gear disc 4 looks meshing.
The driving pieces are provided with three groups, the three groups of driving pieces are distributed in the disc frame 1 at equal intervals, and the three groups of driving pieces are suitable for driving the gear disc 4 to rotate clockwise.
The driving piece includes motor 5, first bevel gear 6 and second bevel gear 7, installation drive box 8 in the disk rack 1, install motor 5 in the drive box 8, motor 5 can dismantle with drive box 8 and be connected, first bevel gear 6 is installed to the output of motor 5, first bevel gear 6 meshes with second bevel gear 7 mutually, rotation post 9 is installed at second bevel gear 7's center, rotation post 9 and second bevel gear 7 fixed connection, install gear 10 on the second bevel gear 7, gear 10 and the coaxial rotation of second bevel gear 7, drive box 8 is provided with the breach on one side of the relative gear dish 4, gear 10 is suitable for to pass the breach and meshes with gear dish 4 mutually.
The height of the gear plate 4 is not less than that of the mounting groove 3.
The rotating part comprises a rotating frame, the rotating frame 11 is installed on the main shaft 2, the rotating frame 11 and the main shaft 2 rotate coaxially, an installation slot 12 is formed in the main shaft 2, an ultraviolet lamp 13 is installed on the installation slot 12, and the ultraviolet lamp 13 is detachably connected with the installation slot 12.
A grating plate 14 is arranged in the rotating frame 11, and the grating plate 14 is fixed with the rotating frame 11The grating plate 14 and the installation slot 12 are connected, and the surfaces of the grating plate 14 and the rotating frame 11 are coated with the modified TiO prepared by the preparation method of claim 12。
The adjusting piece comprises an annular plate 15, the annular plate 15 is fixedly connected with the disc frame 1, a wave groove is formed in the annular plate 15, a reflecting plate 16 is arranged on one side, back to the main shaft 2, of the grating plate 14, a reflecting mirror surface is arranged on one side, opposite to the grating plate 14, of the reflecting plate 16, the bottom end of the reflecting plate 16 is rotatably connected with the rotating frame 11, two groups of rollers 17 are arranged below one side, back to the grating plate 14, of the reflecting plate 16, damping springs 18 are connected to the reflecting mirror surface, two groups of damping springs 18 are arranged, one ends of the two groups of damping springs 18 are fixedly connected with the grating plate 14, the other ends of the two groups of damping springs 18 are fixedly connected with the reflecting mirror surface, the rollers 17 are matched with the wave groove; the spliced pole between gyro wheel 17 and reflecting plate 16 can set up to telescopic structure, and interior stopper spring plays the cushioning effect, and reflecting plate 6 plays on the wave groove, reaches the effect of buckling, and it is better to get rid of the effect indoor formaldehyde, and TiO 162The ultraviolet light is often used as coating, and the effect of removing formaldehyde from indoor walls by the refraction of ultraviolet light is beneficial to the existing formaldehyde removing method.
The control monitoring assembly comprises a processor 19, an ultraviolet sensor 20, an infrared pyroelectric sensor 21 and an alarm unit, wherein the alarm unit comprises a loudspeaker 22, and the loudspeaker 22 is suitable for being installed at the bottom of the disc rack 1;
the ultraviolet sensor 20 is arranged on the disc frame 1, the inclined frame 23 is detachably connected with the disc frame 1, the ultraviolet sensor 20 is arranged on the inclined frame 23, and the ultraviolet sensor 20 is suitable for monitoring the intensity of periodic ultraviolet rays;
the infrared pyroelectric sensor 21 is arranged on the side surface of the disc frame 1, and the infrared pyroelectric sensor 21 is suitable for sensing infrared light emitted by a human body and sending sensing information to the processor 19;
the processor 19 is adapted to monitor the presence of a human body entering the room or the presence of an erroneous ultraviolet intensity by the speaker 22;
a cavity is formed in the main shaft 2, a first power supply 24 is arranged in the cavity, a second power supply 25 is arranged in the disc frame 1, the first power supply 24 is suitable for supplying power to the ultraviolet lamp 13, and the second power supply 25 is suitable for supplying power to the motor 5 and the control monitoring assembly.
Example 2
Based on example 1, a modified TiO2Taking 100g of the product prepared by the invention as an example, the preparation method and the indoor ultraviolet lamp device modify the used components and the mass ratio thereof as follows:
s1, formula proportion
Tetrabutyl titanate and absolute ethyl alcohol are analytically pure; the concentration of the dilute nitric acid solution is 40 percent; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes;
s2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 50min under the condition of 800r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform and transparent solution obtained from a1 under the condition of 500r/min, and stirring for 60min under the condition of 400r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to rise to 750 ℃ at the speed of 1.5 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochrome slag-laterite-nickel ore slag synergistically modified TiO2。
Example 3
Based on example 1, a modified TiO2Taking 100g of the product prepared by the invention as an example, the preparation method and the indoor ultraviolet lamp device modify the used components and the mass ratio thereof as follows:
s1, formula proportion
S2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 60min under the condition of 700r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform and transparent solution obtained from a1 under the condition of 700r/min, and stirring for 75min under the condition of 300r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to be heated to 600 ℃ at the speed of 2.5 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochrome slag-laterite-nickel ore slag synergistically modified TiO2。
Example 4
Based on example 1, a modified TiO2Taking 100g of the product prepared by the invention as an example, the preparation method and the indoor ultraviolet lamp device modify the used components and the mass ratio thereof as follows:
s1, formula proportion
Tetrabutyl titanate is analytically pure; absolute ethyl alcohol is analytically pure; the concentration of the dilute nitric acid solution is 40 percent; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes;
s2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 30min under the condition of 800r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform and transparent solution obtained from a1 under the condition of 600r/min, and stirring for 45min under the condition of 300r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to be heated to 800 ℃ at the speed of 2.5 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochrome slag-laterite-nickel ore slag synergistically modified TiO2。
Example 5
Based on example 1, a modified TiO2Taking 100g of the product prepared by the invention as an example, the preparation method and the indoor ultraviolet lamp device modify the used components and the mass ratio thereof as follows:
s1, formula proportion
Tetrabutyl titanate is analytically pure; absolute ethyl alcohol is analytically pure; the concentration of the dilute nitric acid solution is 40 percent; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes;
s2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 60min under the condition of 600r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform and transparent solution obtained from a1 under the condition of 500r/min, and stirring for 75min under the condition of 500r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to rise to 700 ℃ at the speed of 1.5 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochrome slag-laterite-nickel ore slag synergistically modified TiO2。
Example 6
Based on example 1, a modified TiO2Taking 100g of the product prepared by the invention as an example, the preparation method and the indoor ultraviolet lamp device modify the used components and the mass ratio thereof as follows:
s1, formula proportion
Tetrabutyl titanate is analytically pure; absolute ethyl alcohol is analytically pure; the concentration of the dilute nitric acid solution is 40 percent; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes.
S2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 50min under the condition of 700r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform and transparent solution obtained from a1 under the condition of 700r/min, and stirring for 60min under the condition of 400r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to rise to 650 ℃ at the speed of 2 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochromium slag-laterite-nickel ore slag synergistically modified TiO2。
Comparative example 1
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
tetrabutyl titanate is analytically pure; absolute ethyl alcohol is analytically pure; the concentration of the dilute nitric acid solution was 40%.
Stirring tetrabutyl titanate and absolute ethyl alcohol for 50min at 700r/min by using a constant-temperature magnetic stirrer to obtain a uniform transparent solution, slowly adding a dilute nitric acid solution into the solution at 700r/min, stirring for 60min at 400r/min to obtain a liquid sol, ageing indoors to form a dry gel, then putting the dry gel into a medium-temperature experimental furnace, heating to 650 ℃ at 2 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain TiO2。
Comparative example 2
The components used for preparing 100g of the product of the invention and the mass ratio thereof are as follows:
tetrabutyl titanate is analytically pure; absolute ethyl alcohol is analytically pure; the concentration of the dilute nitric acid solution is 40 percent; the copper nitrate is analytically pure; cerium nitrate was analytically pure.
Stirring tetrabutyl titanate and absolute ethyl alcohol for 50min at the speed of 700r/min by using a constant-temperature magnetic stirrer to obtain a uniform transparent solution, slowly adding a dilute nitric acid solution in which copper nitrate and cerium nitrate are dissolved into the solution at the speed of 700r/min, stirring for 60min at the speed of 400r/min to obtain a liquid sol, ageing the liquid sol indoors to form a dried gel, then putting the dried gel into a medium-temperature experimental furnace, heating to 650 ℃ at the speed of 2 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the Cu-Ce synergistically modified TiO2。
The performance test results of the preparation examples 1 to 6 and the comparative examples 1 to 2 are as follows:
testing the ferrochromium slag-laterite-nickel ore slag synergistically modified TiO according to the indoor air purification function spraying material purification performance (JC/T1074-2008)2The purification performance of (a) is shown in table 1:
TABLE 1 ferrochromium slag-laterite-nickel ore slag synergistic modified TiO2Purification performance
| Serial number | The purification performance of formaldehyde is% |
| Example 1 | 85.3 |
| Example 2 | 91.7 |
| Example 3 | 89.4 |
| Example 4 | 86.4 |
| Example 5 | 87.3 |
| Example 6 | 90.5 |
| Comparative example 1 | 8.3 |
| Comparative example 2 | 79.6 |
As can be seen from the above table, through the test data of the examples 1-6 and the comparative examples 1 and 2, the contents of the ferrochromium slag superfine powder, the laterite-nickel ore slag superfine powder and the metal modified TiO thereof2Oxygen has a beneficial effect and greatly improves the formaldehyde purification performance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. Modified TiO (titanium dioxide)2The preparation method is characterized by comprising the following steps:
s1, formula proportion
The formula comprises the following raw materials in percentage by weight:
the tetrabutyl titanate and the absolute ethyl alcohol are analytically pure; the concentration of the dilute nitric acid solution is 40%; the fineness of the ferrochromium slag superfine powder is 800 meshes; the fineness of the laterite-nickel slag superfine powder is 800 meshes;
s2, the preparation method comprises the following steps:
a1. stirring tetrabutyl titanate and absolute ethyl alcohol for 30-60 min under the condition of 600-800 r/min by using a constant-temperature magnetic stirrer to obtain a uniform and transparent solution;
a2. dissolving the ferrochromium slag superfine powder and the laterite-nickel ore slag superfine powder into a dilute nitric acid solution, slowly adding the uniform transparent solution obtained from a1 under the condition of 500 r/min-700 r/min, and stirring for 45 min-90 min under the condition of 300 r/min-500 r/min to obtain a liquid sol;
a3. placing the liquid sol obtained from a2 in a room to age to form dry gel, then placing the dry gel in a medium temperature experimental furnace to be heated to 600-800 ℃ at the speed of 1.5-2.5 ℃/min, keeping the temperature for 2h, and naturally cooling to room temperature to obtain the ferrochromium slag-laterite nickel ore slag synergistically modified TiO2。
2. An indoor ultraviolet lamp device which characterized in that: the disc rack comprises a disc rack (1), wherein a main shaft (2) is arranged on the disc rack (1), the main shaft (2) rotates on the disc rack (1) along the axis, a rotating assembly is arranged on the main shaft (2), and the rotating assembly rotates along the axis of the disc rack (1);
a driving part is arranged in the disc frame (1), and the driving part is suitable for driving the rotating assembly to rotate;
the disc rack (1) is provided with an adjusting piece and a control monitoring assembly, the adjusting piece is fixedly connected with the disc rack (1), and the control monitoring assembly is suitable for monitoring indoor ultraviolet intensity;
the ultraviolet lamp (13) is mounted on the main shaft (2), a rotating piece is arranged at the outer end of the main shaft (2), the rotating piece and the main shaft (2) rotate coaxially, and the outer surface of the rotating piece is coated with the modified TiO prepared by the preparation method of claim 12。
3. An indoor ultraviolet lamp apparatus according to claim 2, wherein: be provided with mounting groove (3) in disc frame (1), mounting groove (3) and disc frame (1) an organic whole are connected, main shaft (2) are located mounting groove (3), install toothed disc (4) on main shaft (2), toothed disc (4) can be dismantled with main shaft (2) and be connected, toothed disc (4) are suitable for along main shaft (2) axis rotation, the driving piece is suitable for meshing mutually and drive toothed disc (4) and rotate with toothed disc (4).
4. An indoor ultraviolet lamp apparatus according to claim 3, wherein: the driving pieces are arranged in three groups, the three groups of driving pieces are distributed in the disc rack (1) at equal intervals, and the three groups of driving pieces are suitable for driving the gear disc (4) to rotate clockwise or anticlockwise.
5. An indoor ultraviolet lamp apparatus according to claim 4, wherein: the driving part comprises a motor (5), a first bevel gear (6) and a second bevel gear (7), a driving box (8) is arranged in the disc frame (1), a motor (5) is arranged in the driving box (8), the motor (5) is detachably connected with the driving box (8), the output end of the motor (5) is provided with a first bevel gear (6), the first bevel gear (6) is meshed with a second bevel gear (7), a rotating column (9) is installed in the center of the second bevel gear (7), the rotating column (9) is fixedly connected with a second bevel gear (7), a first gear (10) is installed on the second bevel gear (7), the first gear (10) and the second bevel gear (7) rotate coaxially, one side of the driving box (8) opposite to the gear disc (4) is provided with a notch, the first gear (10) is suitable for being meshed with the gear disc (4) through the notch.
6. An indoor ultraviolet lamp apparatus according to claim 5, wherein: the height of the gear disc (4) is not less than that of the mounting groove (3).
7. An indoor ultraviolet lamp apparatus according to claim 6, wherein: the rotating part comprises a rotating frame (11), the rotating frame (11) is installed on a main shaft (2), the rotating frame (11) and the main shaft (2) rotate coaxially, an installation slot (12) is formed in the main shaft (2), an ultraviolet lamp (13) is installed in the installation slot (12), and the ultraviolet lamp (13) is detachably connected with the installation slot (12).
8. An indoor ultraviolet lamp apparatus according to claim 7, wherein: a grating plate (14) is arranged in the rotating frame (11), the grating plate (14) is fixedly connected with the rotating frame (11), a plurality of groups of grating plates (14) and installation slots (12) are arranged, and the surfaces of the grating plates (14) and the rotating frame (11) are coated with the modified TiO prepared by the preparation method of claim 12。
9. An indoor ultraviolet lamp apparatus according to claim 8, wherein: the adjusting piece comprises an annular plate (15), the annular plate (15) is fixedly connected with the disc frame (1), a wave groove is formed in the annular plate (15), a reflecting plate (16) is arranged on one side, back to the main shaft (2), of the grating plate (14), a reflecting mirror surface is arranged on one side, opposite to the grating plate (14), of the reflecting plate (16), the bottom end of the reflecting plate (16) is rotatably connected with the rotating frame (11), two groups of rollers (17) are arranged below one side, back to the grating plate (14), of the reflecting plate (16), damping springs (18) are connected onto the reflecting mirror surface, two groups of damping springs (18) are arranged, one ends of the two groups of damping springs (18) are fixedly connected with the grating plate (14), the other ends of the two groups of damping springs (18) are fixedly connected with the reflecting mirror surface, and the rollers (17) are matched with the wave groove, the reflecting plate (16) is suitable for rotating up and down along the inner diameter of the wave groove.
10. An indoor ultraviolet lamp apparatus according to claim 9, wherein: the control monitoring assembly comprises a processor (19), an ultraviolet sensor (20), an infrared pyroelectric sensor (21) and an alarm unit, wherein the alarm unit comprises a loudspeaker (22), and the loudspeaker (22) is suitable for being mounted at the bottom of the disc frame (1);
the ultraviolet sensor (20) is installed on the disc frame (1), the disc frame (1) is provided with an inclined frame (23), the inclined frame (23) is detachably connected with the disc frame (1), the ultraviolet sensor (20) is installed on the inclined frame (23), and the ultraviolet sensor (20) is suitable for monitoring the intensity of periodic ultraviolet rays;
the infrared pyroelectric sensor (21) is installed on the side face of the disc frame (1), and the infrared pyroelectric sensor (21) is suitable for sensing infrared light emitted by a human body and sending sensing information to the processor (19);
the processor (19) is adapted to monitor the presence of a human body entering the room or the presence of an error in the intensity of ultraviolet light by a speaker (22) to alert;
the disc type ultraviolet lamp is characterized in that a cavity is formed in the main shaft (2), a first power supply (24) is arranged in the cavity, a second power supply (25) is arranged in the disc frame (1), the first power supply (24) is suitable for supplying power to the ultraviolet lamp (13), and the second power supply (25) is suitable for supplying power to the motor (5) and the control monitoring assembly.
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| CN109913005A (en) * | 2019-03-27 | 2019-06-21 | 安徽工业大学 | A kind of environment-friendly type photocatalysis fireproof coating and preparation method thereof |
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Application publication date: 20210709 |