CN106348767A - Combustor prefabricated part for cement kilns and preparation method thereof - Google Patents

Combustor prefabricated part for cement kilns and preparation method thereof Download PDF

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Publication number
CN106348767A
CN106348767A CN201610732097.4A CN201610732097A CN106348767A CN 106348767 A CN106348767 A CN 106348767A CN 201610732097 A CN201610732097 A CN 201610732097A CN 106348767 A CN106348767 A CN 106348767A
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powder
cement
additive
liquor alumini
alumini chloridi
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山国强
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3804—Borides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3839—Refractory metal carbides
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3852—Nitrides, e.g. oxynitrides, carbonitrides, oxycarbonitrides, lithium nitride, magnesium nitride
    • C04B2235/3865—Aluminium nitrides
    • C04B2235/3869—Aluminium oxynitrides, e.g. AlON, sialon

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Ceramic Products (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention discloses a combustor prefabricated part for cement kilns and a preparation method thereof. The combustor prefabricated part for cement kilns is composed of magnesia alumina spinel, Si2Al4O4N4, Al3BC3, zirconium spinel, strontium carbonate powder, vanadium carbide powder, aluminum oxide micropowder, pure calcium aluminate cement, composite powder, additives and an aluminum chloride solution. The preparation method comprises the following steps: forming by natural flow casting, curing, drying, and carrying out heat treatment at high temperature. Compared with the traditional castable, the product has the characteristics of natural flow construction, automatic defoaming, stripping resistance, high wear resistance, long service life and the like, and can be widely used in the combustor part of various rotary kilns in cement industry.

Description

A kind of cement kiln burner prefabricated component and preparation method
The application is the divisional application of Application No. 201510071466.5.
Technical field
The present invention relates to a kind of cement kiln burner prefabricated component and preparation method, more particularly, to burnt ore industry, cement Industry, lime industry, the cement kiln combustion device prefabricated component used by metallurgy industry and preparation method.
Background technology
Traditional burner is all generally to carry out vibrating casting molding using balk cargo using scene, thus extend stopping The cycle of kiln, long construction period, field labor intensity are big, construction when add water many, length curing cycle, final products short life, because And have impact on the normal production of cement kiln.Existing castable product also is difficult to meet the anti-stripping during burner uses simultaneously Fall, short life, the problems such as construction quality segregation is unstable.Prefabricated component refers to change supply of material pattern: burner is complete in fire resisting factory Become cast, maintenance and heat treatment, then this product is moved to producer and directly use, the exploitation of this kind of product thoroughly solves tradition The site operation weakness of Unshaped Casting Refractories.
Content of the invention
The purpose of the present invention is exactly that thermal shock resistance is poor in order to solve product not anti-strip, and short life and construction quality are poor Defect, provides a kind of cement kiln burner prefabricated component and preparation method, and the preform product made disclosure satisfy that cement kiln fires The anti-strip that burner requires, the long-life, thermal shock resistance is high, easy construction, the problems such as steady quality.
For solve above-mentioned technical problem, the present invention adopt the following technical scheme that prefabricated component by magnesium aluminate spinel, si2al4o4n4、al3bc3, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, alumina powder, pure calcium aluminate cement, composite powder, outward Plus agent and liquor alumini chloridi composition.
Magnesium aluminate spinel, si in raw material2al4o4n4、al3bc3, zirconium spinel, strontium carbonate powder, carbonization vanadium powder, aluminium oxide is micro- Powder, pure calcium aluminate cement, the parts by weight of composite powder are: magnesium aluminate spinel 15-20 part, si2al4o4n420-25 part, al3bc37-12 part, zirconium spinel 20-28 part, strontium carbonate powder 1-3 part, carbonization vanadium powder 2-4 part, alumina powder 8-12 part, fine aluminium Sour calcium cement 3-7 part, composite powder 0-1 part.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively For: liquor alumini chloridi 9%, additive is 0.2-0.3%；Composite powder is made up of leucite powder and kaliophilite powder, and its weight compares 1:1.
Described additive is sulfonated melamine compound resin, isooctanol, 5- Sulfonic Salicylic Acid, and three's weight ratio is for 2: 1:1.Described liquor alumini chloridi density is 1.25 grams/cc, ph3.5, viscosity 0.006kpa.s.
Above-mentioned each raw material is carried out dispensing in above ratio, after mix homogeneously, the method using gravity flow pouring shapes, through supporting After shield, drying, carry out heat treatment at high temperature, obtain this burner prefabricated component.
The preparation method of the present invention is:
Step one, batch mixing and stirring, prepare raw material by proportioning, add additive, stir in blender, stir After add liquor alumini chloridi, from flow valuve control 200 mm；Step 2, shaping, maintenance and drying, shape: mould is pacified Install, add the stirring compound being stirred, deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Support Shield: the good sample of gravity flow pouring and mould are put into 25 DEG C of thermostatic chambers, the demoulding after hardening on inspection, natural curing 48 again after the demoulding Hour；It is dried: the good sample of maintenance carries out 110 DEG C of 24h drying and processings in electrical kiln, close power supply and treat that it is cooled to room temperature；Step Rapid three, heat treatment, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then with 10 DEG C/min Speed be raised to 1000 DEG C, and be incubated 3 hours；After end, naturally cool to room temperature, obtain this cement kiln after coming out of the stove with prefabricated Part.
The bulk density of gained prefabricated component in 2.7g/cm3, strength at normal temperature 25mpa, wear-resisting be less than 4, service life exists More than 18 months.
The present invention has obtained a kind of anti-strip, long-life, gravity flow construction, the cement kiln burner prefabricated component of self-defoaming. This prefabricated component is high temperature resistant, anti-strip, the long-life, improves the running rate of cement kiln industry, gravity flow pouring during construction, and pore is permissible Voluntarily eliminate, it is to avoid the quality segregation that vibrating casting material produces, the shortcoming that changes original bulk productss, the opening of this kind of product Send out the site operation weakness thoroughly solving traditional Unshaped Casting Refractories.
Specific embodiment
Embodiment 1,16 parts of magnesium aluminate spinel, si2al4o4n425 parts, al3bc312 parts, 20 parts of zirconium spinel, strontium carbonate powder 3 Part, 4 parts of carbonization vanadium powder, 12 parts of alumina powder, 7 parts of pure calcium aluminate cement, 1 part of composite powder.Add additive, be sufficiently mixed all After even, then add liquor alumini chloridi.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively For: liquor alumini chloridi 9%, additive is 0.3%.
Embodiment 2,17 parts of magnesium aluminate spinel, si2al4o4n424 parts, al3bc312 parts, 20 parts of zirconium spinel, strontium carbonate powder 3 Part, 4 parts of carbonization vanadium powder, 12 parts of alumina powder, 7 parts of pure calcium aluminate cement, 1 part of composite powder.Add additive, be sufficiently mixed all After even, then add liquor alumini chloridi.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively For: liquor alumini chloridi 9%, additive is 0.2%.
Embodiment 3,18 parts of magnesium aluminate spinel, si2al4o4n423 parts, al3bc312 parts, 21 parts of zirconium spinel, strontium carbonate powder 3 Part, 4 parts of carbonization vanadium powder, 12 parts of alumina powder, 7 parts of pure calcium aluminate cement, 0 part of composite powder.Add additive, be sufficiently mixed all After even, then add liquor alumini chloridi.Liquor alumini chloridi, the addition of additive account for the percentage ratio of above-mentioned gross weight respectively For: liquor alumini chloridi 9%, additive is 0.3%.
Embodiment 1,2,3 follow-up preparation technology is:: mould installion is good, add the stirring compound being stirred, by mixed Close the deadweight of material and surface tension is shakeout；The material of excess surface is erased；Maintenance: the good sample of gravity flow pouring and mould are put into 25 DEG C thermostatic chamber, the demoulding after hardening on inspection, natural curing 48 hours again after the demoulding；It is dried: the good sample of maintenance enters in electrical kiln 110 DEG C of 24h drying and processings of row, close power supply and treat that it is cooled to room temperature；Step 3, heat treatment, heating put into by dried sample In stove, begin to warm to 300 DEG C according to 5 DEG C/min, then be raised to 1000 DEG C with the speed of 10 DEG C/min, and be incubated 3 hours；Terminate Afterwards, naturally cool to room temperature, after coming out of the stove, obtain this cement kiln burner prefabricated component.

Claims (3)

1. a kind of cement kiln with burner prefabricated component it is characterised in that: by magnesium aluminate spinel, si2al4o4n4、al3bc3, zirconium point brilliant Stone, strontium carbonate powder, carbonization vanadium powder, alumina powder, pure calcium aluminate cement, composite powder, additive and liquor alumini chloridi composition；Its In, magnesium aluminate spinel 15-20 part, si2al4o4n420-25 part, al3bc37-12 part, zirconium spinel 20-28 part, strontium carbonate powder 1- 3 parts, carbonization vanadium powder 2-4 part, alumina powder 8-12 part, pure calcium aluminate cement 3-7 part, composite powder 0-1 part；Liquor alumini chloridi, The percentage ratio of the addition of additive above-mentioned gross weight respectively is: liquor alumini chloridi 9%, and additive is 0.2-0.3%；Composite powder by Leucite powder and kaliophilite powder composition, its weight compares 1:1；Additive is sulfonated melamine compound resin, isooctanol, 5- sulfonic acid Salicylic acid, three's weight is than for 2:1:1.
2. a kind of cement kiln according to claim 1 with burner prefabricated component it is characterised in that: described liquor alumini chloridi Density is 1.25 grams/cc, ph3.5, viscosity 0.006kpa.s.
3. a kind of cement kiln according to claim 1 with the preparation method of burner prefabricated component it is characterised in that: step First, batch mixing and stirring, prepares raw material by proportioning, adds additive, stirs in blender, add after stirring Liquor alumini chloridi, controls 200 mm from flow valuve；Step 2, shaping, maintenance and drying, shape: mould installion is good, add The stirring compound being stirred, deadweight and surface tension by compound are shakeout；The material of excess surface is erased；Maintenance: will flow automatically Pour the sample being poured in and 25 DEG C of thermostatic chambers put into by mould, the demoulding after hardening on inspection, natural curing 48 hours again after the demoulding；Dry Dry: the good sample of maintenance carries out 110 DEG C of 24h drying and processings in electrical kiln, close power supply and treat that it is cooled to room temperature；Step 3, heat Process, dried sample is put in heating furnace, begins to warm to 300 DEG C according to 5 DEG C/min, then the speed liter with 10 DEG C/min To 1000 DEG C, and it is incubated 3 hours；After end, naturally cool to room temperature, obtain this cement kiln burner after coming out of the stove prefabricated Part.
CN201610732097.4A 2015-02-11 2015-02-11 Combustor prefabricated part for cement kilns and preparation method thereof Pending CN106348767A (en)

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CN201610732097.4A CN106348767A (en) 2015-02-11 2015-02-11 Combustor prefabricated part for cement kilns and preparation method thereof
CN201510071466.5A CN104628398B (en) 2015-02-11 2015-02-11 A kind of cement kiln burner prefabricated component and preparation method

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CN201610731618.4A Pending CN106396692A (en) 2015-02-11 2015-02-11 Combustor prefabricated part used for cement kilns, and preparation method thereof
CN201610732096.XA Pending CN106336230A (en) 2015-02-11 2015-02-11 Burner prefab for cement kiln and preparation method thereof
CN201610732097.4A Pending CN106348767A (en) 2015-02-11 2015-02-11 Combustor prefabricated part for cement kilns and preparation method thereof
CN201510071466.5A Active CN104628398B (en) 2015-02-11 2015-02-11 A kind of cement kiln burner prefabricated component and preparation method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106336230A (en) * 2015-02-11 2017-01-18 山国强 Burner prefab for cement kiln and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107512918A (en) * 2017-08-25 2017-12-26 长兴兴鹰新型耐火建材有限公司 A kind of preformed bricks of resource reusing
CN107540397A (en) * 2017-08-25 2018-01-05 长兴兴鹰新型耐火建材有限公司 The preformed bricks that a kind of high strength and low thermal is led
CN107540356A (en) * 2017-09-04 2018-01-05 河南鑫诚耐火材料股份有限公司 A kind of carbon baking furnace flame path wall novel energy-conserving prefabricated component and preparation method thereof

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CN102503487A (en) * 2011-11-08 2012-06-20 山国强 Prefabricated member for combustor and preparation method for prefabricated member
CN106336230A (en) * 2015-02-11 2017-01-18 山国强 Burner prefab for cement kiln and preparation method thereof

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Publication number Priority date Publication date Assignee Title
FR2668478B1 (en) * 1990-10-24 1993-06-25 Savoie Refractaires NOVEL REFRACTORY MATERIAL WITH SIALON MATRIX AND PREPARATION METHOD.
CN104058771A (en) * 2014-07-18 2014-09-24 徐梅子 Fire-resistant castable for pre-heater

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102503487A (en) * 2011-11-08 2012-06-20 山国强 Prefabricated member for combustor and preparation method for prefabricated member
CN106336230A (en) * 2015-02-11 2017-01-18 山国强 Burner prefab for cement kiln and preparation method thereof
CN106396692A (en) * 2015-02-11 2017-02-15 山国强 Combustor prefabricated part used for cement kilns, and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106336230A (en) * 2015-02-11 2017-01-18 山国强 Burner prefab for cement kiln and preparation method thereof
CN106396692A (en) * 2015-02-11 2017-02-15 山国强 Combustor prefabricated part used for cement kilns, and preparation method thereof

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CN106336230A (en) 2017-01-18
CN104628398A (en) 2015-05-20
CN104628398B (en) 2017-11-10

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Application publication date: 20170125