CN110433744A - Fluorescent powder preparation facilities and preparation method - Google Patents
Fluorescent powder preparation facilities and preparation method Download PDFInfo
- Publication number
- CN110433744A CN110433744A CN201910696263.3A CN201910696263A CN110433744A CN 110433744 A CN110433744 A CN 110433744A CN 201910696263 A CN201910696263 A CN 201910696263A CN 110433744 A CN110433744 A CN 110433744A
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- China
- Prior art keywords
- lid
- crucible
- fluorescent powder
- preparation facilities
- crucible cover
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- 239000000843 powder Substances 0.000 title claims abstract description 63
- 238000002360 preparation method Methods 0.000 title claims abstract description 32
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 17
- 238000010304 firing Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- 238000000498 ball milling Methods 0.000 claims description 12
- 239000002002 slurry Substances 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 6
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000000047 product Substances 0.000 description 13
- 239000007789 gas Substances 0.000 description 10
- 239000003610 charcoal Substances 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 5
- 239000000376 reactant Substances 0.000 description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001938 gadolinium oxide Inorganic materials 0.000 description 2
- 229940075613 gadolinium oxide Drugs 0.000 description 2
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001940 europium oxide Inorganic materials 0.000 description 1
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 1
- 235000011868 grain product Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 description 1
- 229910003447 praseodymium oxide Inorganic materials 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229910003451 terbium oxide Inorganic materials 0.000 description 1
- SCRZPWWVSXWCMC-UHFFFAOYSA-N terbium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Tb+3].[Tb+3] SCRZPWWVSXWCMC-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The present invention relates to a kind of fluorescent powder preparation facilities, which includes crucible body and crucible cover.Wherein, crucible body has opening；Crucible cover is covered on the opening of crucible body and forms chamber between crucible body, and the cavity placed for active carbon is equipped in crucible cover, and crucible cover is equipped with several through-holes of connecting chamber and cavity.Technical solution of the present invention effectively avoids participating in impurity in fluorescent powder, simplifies operation, improves and fires efficiency.
Description
Technical field
The present invention relates to fluorescent material manufacturing technology field more particularly to a kind of fluorescent powder preparation facilities and preparation methods.
Background technique
The preparation method of fluorescent powder generallys use after the reactants such as sulphur and matrix, exciting agent mix, in hydrogen as also
It is reacted under conditions of former agent, obtained crude product can be obtained that fineness is uniform, and gloss is vivid after sequence of operations
Fluorescent powder.But a large amount of sulfide can be generated because sulphur is reacted with hydrogen in the reaction, such as hydrogen sulfide, sulfur dioxide, therefore,
It replaces hydrogen as reducing agent using active carbon, reaction is carried out under conditions of nitrogen atmosphere and completes preparation.
Currently, the preparation facilities of fluorescent powder mainly uses crucible, reaction raw materials are added to crucible, it is real by firing
It is existing.Specifically there are mainly two types of modes of operation: one is high temperature active charcoal to be placed directly on the reaction raw materials in crucible, adopting
In this way, one layer of charcoal ash can be formed on fluorescent powder after the completion of firing to need to pass through so that mixing impurity in fluorescent powder
Impurity is removed in multi-pass operation, and process is cumbersome；Another kind is covered again in the outside of reaction crucible in such a way that crucible is superimposed
A upper crucible is fired after placing pyrocarbon between two crucibles, however due to increasing reaction crucible and firing ring
Space length between border, causes heat transfer efficiency to reduce, and influences to fire effect.
Summary of the invention
In view of this, it is necessary to aiming at the problem that, provide a kind of fluorescent powder preparation facilities, it is intended to avoid mixing in fluorescent powder
Impurity simplifies operation, improves and fires efficiency.
To achieve the above object, the present invention proposes that a kind of fluorescent powder preparation facilities, the device include: crucible body, has
Opening；Crucible cover is covered on the opening of the crucible body and forms chamber between the crucible body, in the crucible cover
Equipped with the cavity placed for active carbon, the crucible cover is equipped with several through-holes of the connection chamber and the cavity.
Optionally, the crucible cover includes the first lid and encloses with first lid to set the to form the cavity second lid
Body, the through-hole is set to first lid, and first lid is connect with second lid so that first lid
It is opened and closed with second lid.
Optionally, first lid includes first area and second area, and the through-hole is arranged in the first area,
The direction that the second area faces away from second lid is recessed to form groove.
Optionally, circumferential annular setting of the first area along the groove.
Optionally, the through-hole interval is uniformly arranged.
Optionally, first lid is detachably connected with second lid.
Optionally, first lid and second lid are hinged.
The present invention also proposes that a kind of preparation method of fluorescent powder, this method use a kind of fluorescent powder preparation facilities, the device
Include: crucible body, there is opening；Crucible cover is covered on the opening of the crucible body and the shape between the crucible body
At chamber, the cavity placed for active carbon is equipped in the crucible cover, the crucible cover, which is equipped with, is connected to the chamber and the sky
Several through-holes of chamber, this method specific steps include:
1) reaction raw materials are added stirs into blender, raw material will be added after mixing into crucible body；
2) active carbon is added to the cavity of crucible cover, and is covered on crucible cover in crucible body, in nitrogen atmosphere item
It is put into firing kiln roasting 16min~20min that firing temperature is 1200 DEG C~1500 DEG C under part, obtains powder；
3) it is fitted into magnetic bucket and stirs after mixing powder and water, mixed liquor after stirring is stood, settle, is washed with clear water
It washs, obtains slurry；
4) slurry, water and abrading-ball are added in ball mill according to ratio 1:1:2 and ball milling is carried out to powder；
5) powder after ball milling in step 4) is sieved using sieve, the powder after sieving is put into drying box
Drying and dehydrating can be completed.
Reaction raw materials are added by opening by using crucible body and crucible cover, crucible body in technical solution of the present invention,
Crucible cover is covered on opening, and closed chamber is formed between crucible cover and crucible body, convenient for the progress of reaction.Pass through crucible
Cavity is equipped in lid separates active carbon with reaction raw materials for placing active carbon.And by crucible cover be equipped with connecting chamber and
Several through-holes of cavity, make chamber be connected to form whole reaction compartment with cavity；On the one hand, reaction raw materials are during the reaction
Heated vaporization generates gas, and gas via through holes are entered in cavity and reacted with active carbon, generates intermediate gas phase product；Separately
On the one hand, intermediate gas phase product is again introduced by spreading via through holes to chamber, and the reaction was continued with reactant in chamber, thus
Obtain target product.During this, since active carbon and reactants separate are in different area of space, to make product
It is automatically separated with charcoal ash, so as to avoid mixing for fluorescent powder and charcoal ash, without carrying out purification processes in the follow-up process, greatly
Ground simplifies operating procedure.Also, by may make that reaction raw materials are rapidly heated in chamber, mention to directly heating for crucible body
High reaction efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of fluorescent powder preparation facilities of the present invention；
Fig. 2 is the structural schematic diagram of one embodiment of crucible cover in Fig. 1.
Drawing reference numeral explanation:
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention proposes a kind of fluorescent powder preparation facilities, referring to Figures 1 and 2.
In embodiments of the present invention, which includes crucible body 10 and crucible cover 20.Wherein, crucible
Ontology 10 has opening；Crucible cover 20 is covered on the opening of crucible body 10 and forms chamber, crucible between crucible body 10
The cavity 21 placed for active carbon is equipped in lid 20, crucible cover 20 is equipped with several through-holes of connecting chamber and cavity 21.
Reaction is added by opening by using crucible body 10 and crucible cover 20, crucible body 10 in technical solution of the present invention
Raw material, crucible cover 20 are covered on opening, closed chamber is formed between crucible cover 20 and crucible body 10, convenient for reaction into
Row.Active carbon is separated with reaction raw materials for placing active carbon by being equipped with cavity 21 in crucible cover 20.And pass through crucible
Lid 20 is equipped with several through-holes of connecting chamber and cavity 21, is connected to chamber with cavity 21 and forms whole reaction compartment；One side
Face, reaction raw materials are heated during the reaction to be vaporized, generates gas, and gas via through holes enter in cavity 21 to be occurred with active carbon
Reaction generates intermediate gas phase product；On the other hand, intermediate gas phase product is again introduced by spreading via through holes to chamber, with
The reaction was continued for reactant in chamber, to obtain target product.During this, since active carbon being in reactants separate
Different area of space, so that product be made to be automatically separated with charcoal ash, so as to avoid mixing for fluorescent powder and charcoal ash, without rear
Purification processes are carried out during continuous, greatly simplifie operating procedure.Also, by that can make to directly heating for crucible body 10
It obtains reaction raw materials in chamber to be rapidly heated, improves reaction efficiency.
Specifically, crucible cover 20 is detachably connected with crucible body 10, is added instead with will pass through the opening of crucible body 10
Answer raw material.The chamber formed between crucible cover 20 and crucible body 10 can be confined space, be also possible to nature, due to
Gas generation is had during the reaction, and preferred chamber is confined space, can avoid reaction gas evolution, to obtain better
Reaction yield.
By in crucible cover 20 be arranged cavity 21, be placed in active carbon in cavity 21 so that active carbon with react original
Material mutually separates.Meanwhile several through-holes are set in crucible cover 20, so that reaction raw materials are entered to by thermogenetic gas by through-hole
It in cavity 21, reacts with active carbon, generates fluorescent powder grain product, product passes through through-hole under the effect of gravity and falls into chamber
Interior realizes being automatically separated for fluorescent powder grain and charcoal ash, avoids mixing impurity in product.
21 size of cavity is arranged according to actual needs, and the crucible cover 20 that active carbon is placed in cavity 21 can be disposably
Product can also make crucible cover 20 realize being placed and taken out for active carbon by folding, convenient for operation.The shape of through-hole is as needed
Setting, generallys use circle；And in actual operation, in order to make fully reacting, it will usually be opened up in the reaction raw materials paved
Multiple reacting holes, such as 4,6,8, therefore, the quantity of through-hole and position corresponds to the quantity of reacting hole and position is set
It sets.
As shown in Fig. 2, crucible cover 20 includes that the first lid 22 and enclosing with the first lid 22 sets the to form cavity 21 second lid
Body 23, through-hole is set to the first lid 22, and the first lid 22 is connect with the second lid 23 so that the first lid 22 and the second lid
23 foldings.It is easy to operate convenient for being placed and taken out for active carbon by the way of the first lid 22 and the folding of the second lid 23.
In practical operation, different shapes is can be used in the first lid 22 and the second lid 23 of crucible cover, such as circular arc, cylinder, side
Shape etc., with specific reference to needing to be arranged, without limitation.
Further, the first lid 22 includes first area 221 and second area, and through-hole is arranged in first area 221, the
The direction that two regions face away from the second lid 23 is recessed to form groove 222, and groove 222 is used for the placement of active carbon.By in
First area 221 and second area are set on the first lid 22, separates through-hole mutually with active carbon, further prevents charcoal ash anti-
It should participate in after the completion into fluorescent powder product, be conducive to improve product purity.
Diversified forms can be used in first area 221 and the relative position of second area, such as first area 221 is located at first
The left-half of lid 22, second area are located at the right half part of lid；Either first area 221 and second area wrap respectively
Multiple subregions are included, and subregion alternate intervals are arranged；Either circumferential annular of the second area along first area 221 is arranged,
I.e. second area is enclosed set on the periphery, etc. of first area 221.Concrete mode is set as needed, and is not specifically limited herein.
In the present embodiment, make circumferential annular setting of the first area 221 along groove 222.I.e. groove 222 is located at the first lid
22 middle part, first area 221 are located at the periphery of groove 222, using this mode, are conducive to increase groove 222 and crucible body
The spacing of 10 wall surfaces reduces space interference, closes convenient for crucible cover 20 and the lid of crucible body 10.Preferably, in first area 221
Through-hole interval is uniform, is conducive to reaction uniformly, so that fully reacting, improves yield.And compound with regular structure, manufacture easy to process.
In order to make the first lid 22 and the second lid 23 convenient for opening and closing, in the present embodiment, make the first lid 22 and the second lid
Body 23 is detachably connected.Specifically, it can be equipped with buckle in the first lid 22, the second lid 23 is equipped with card slot, buckle and card
Slot cooperation；Alternatively, the first lid 22 is equipped with card hole, the second lid 23 is equipped with pillar, and pillar and card hole cooperate, etc..
First lid 22 and the second lid 23 can also be rotatablely connected, i.e., by being oppositely arranged two on the first lid 22
Mounting ear, the second lid 23 are equipped with shaft, and the both ends of shaft are coupled with two mounting ears respectively, realize rotation folding.
Preferably, make the first lid 22 and the second lid 23 hinged.Mounting portion can be set on the first lid 22, pacified on the second lid 23
Equipped with articulated shaft, realized by articulated shaft and mounting portion cooperation hinged.
In addition, the first lid 22 can also be made to be slidably connected with the second lid 23.First lid 22 is equipped with sliding slot, the second lid
23 are equipped with sliding rail, and sliding rail is in sliding fit with the sliding chute.
The present invention also proposes a kind of fluorescent material preparation method, which uses a kind of fluorescent powder preparation dress
It sets, the specific structure of the fluorescent powder preparation facilities is referring to above-described embodiment, since fluorescent material preparation method is using above-mentioned all
Whole technical solutions of embodiment, therefore at least all beneficial effects brought by the technical solution with above-described embodiment, In
This is no longer repeated one by one.
A kind of specific steps of fluorescent material preparation method include: in the present embodiment
1) reaction raw materials are added stirs into blender, raw material will be added after mixing into crucible body；
2) active carbon is added to the cavity of crucible cover, and is covered on crucible cover in crucible body, in nitrogen atmosphere item
It is put into firing kiln roasting 16min~20min that firing temperature is 1200 DEG C~1500 DEG C under part, obtains powder；
3) it is fitted into magnetic bucket and stirs after mixing powder and water, mixed liquor after stirring is stood, settle, is washed with clear water
It washs, obtains slurry；
4) slurry, water and abrading-ball are added in ball mill according to ratio 1:1:2 and ball milling is carried out to powder；
5) powder after ball milling in step 4) is sieved using sieve, the powder after sieving is put into drying box
Drying and dehydrating can be completed.
Embodiment one
A kind of specific steps of fluorescent material preparation method include:
1) reaction raw materials gadolinium oxide 350g~450g, sulphur 50g~55g, praseodymium oxide 0.4g~0.5g, sodium carbonate 100g~
130g is added to be stirred into blender, raw material will be added after mixing into crucible body；
2) active carbon is added to the cavity of crucible cover, and is covered on crucible cover in crucible body, in nitrogen atmosphere item
It is put into the firing kiln roasting 20min that firing temperature is 1200 DEG C under part, obtains powder；
3) it is fitted into after mixing powder and water in magnetic bucket, stirs 1h under the conditions of revolving speed is 1800rpm, will mixed after stirring
It closes liquid to stand, settle, washed with clear water, obtains slurry；
4) slurry, water and abrading-ball are added in ball mill according to ratio 1:1:2 and ball milling is carried out to powder；
5) powder after ball milling in step 4) is sieved using 150 μm of sieve, by the powder after sieving be put into
Drying and dehydrating in 150 DEG C of drying boxes, can be completed.
Embodiment two
1) reaction raw materials gadolinium oxide 350g~450g, sulphur 50g~55g, terbium oxide 0.4g~0.5g, sodium carbonate 100g~
130g is added to be stirred into blender, raw material will be added after mixing into crucible body；
2) active carbon is added to the cavity of crucible cover, and is covered on crucible cover in crucible body, in nitrogen atmosphere item
It is put into the firing kiln roasting 16min that firing temperature is 1500 DEG C under part, obtains powder；
3) it is fitted into after mixing powder and water in magnetic bucket, stirs 1h under the conditions of revolving speed is 1800rpm, will mixed after stirring
It closes liquid to stand, settle, washed with clear water, obtains slurry；
4) slurry, water and abrading-ball are added in ball mill according to ratio 1:1:2 and ball milling is carried out to powder；
5) powder after ball milling in step 4) is sieved using 150 μm of sieve, by the powder after sieving be put into
Drying and dehydrating in 150 DEG C of drying boxes, can be completed.
Embodiment three
1) reaction raw materials yttrium oxide 350g~450g, sulphur 50g~55g, europium oxide 0.4g~0.5g, sodium carbonate 100g~
130g is added to be stirred into blender, raw material will be added after mixing into crucible body；
2) active carbon is added to the cavity of crucible cover, and is covered on crucible cover in crucible body, in nitrogen atmosphere item
It is put into the firing kiln roasting 18min that firing temperature is 1400 DEG C under part, obtains powder；
3) it is fitted into after mixing powder and water in magnetic bucket, stirs 1h under the conditions of revolving speed is 1800rpm, will mixed after stirring
It closes liquid to stand, settle, washed with clear water, obtains slurry；
4) slurry, water and abrading-ball are added in ball mill according to ratio 1:1:2 and ball milling is carried out to powder；
5) powder after ball milling in step 4) is sieved using 150 μm of sieve, by the powder after sieving be put into
Drying and dehydrating in 150 DEG C of drying boxes, can be completed.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (8)
1. a kind of fluorescent powder preparation facilities characterized by comprising
Crucible body has opening；
Crucible cover is covered on the opening of the crucible body and forms chamber between the crucible body, in the crucible cover
Equipped with the cavity placed for active carbon, the crucible cover is equipped with several through-holes of the connection chamber and the cavity.
2. fluorescent powder preparation facilities as described in claim 1, which is characterized in that the crucible cover include the first lid and with institute
It states the first lid and encloses and set the second lid to form the cavity, the through-hole is set to first lid, and first lid
It is connect with second lid so that first lid and second lid open and close.
3. fluorescent powder preparation facilities as claimed in claim 2, which is characterized in that first lid includes first area and
Two regions, the through-hole are arranged in the first area, and the second area faces away from the direction recess of second lid
Form groove.
4. fluorescent powder preparation facilities as claimed in claim 3, which is characterized in that circumferential direction of the first area along the groove
Annular setting.
5. fluorescent powder preparation facilities according to any one of claims 1 to 4, which is characterized in that the through-hole interval is uniform
Setting.
6. fluorescent powder preparation facilities as claimed in claim 2, which is characterized in that first lid and second lid can
Dismantling connection.
7. the fluorescent powder preparation facilities stated such as claim 2, which is characterized in that first lid and second lid are cut with scissors
It connects.
8. a kind of preparation method of fluorescent powder, which is characterized in that using the fluorescent powder as described in any one of claims 1 to 7
Preparation facilities, specific steps include:
1) reaction raw materials are added stirs into blender, raw material will be added after mixing into crucible body；
2) active carbon is added to the cavity of crucible cover, and is covered on crucible cover in crucible body, under the conditions of nitrogen atmosphere
It is put into firing kiln roasting 16min~20min that firing temperature is 1200 DEG C~1500 DEG C, obtains powder；
3) it is fitted into magnetic bucket and stirs after mixing powder and water, mixed liquor after stirring is stood, settle, is washed with clear water, is obtained
To slurry；
4) slurry, water and abrading-ball are added in ball mill according to ratio 1:1:2 and ball milling is carried out to powder；
5) powder after ball milling in step 4) is sieved using sieve, the powder after sieving is put into drying box dry
Dehydration, can be completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696263.3A CN110433744B (en) | 2019-07-30 | Fluorescent powder preparation device and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696263.3A CN110433744B (en) | 2019-07-30 | Fluorescent powder preparation device and preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110433744A true CN110433744A (en) | 2019-11-12 |
| CN110433744B CN110433744B (en) | 2024-06-07 |
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