CN102206851A - Furnace hearth set for synthesizing crystals by using flame fusion method - Google Patents
Furnace hearth set for synthesizing crystals by using flame fusion method Download PDFInfo
- Publication number
- CN102206851A CN102206851A CN2011100973727A CN201110097372A CN102206851A CN 102206851 A CN102206851 A CN 102206851A CN 2011100973727 A CN2011100973727 A CN 2011100973727A CN 201110097372 A CN201110097372 A CN 201110097372A CN 102206851 A CN102206851 A CN 102206851A
- Authority
- CN
- China
- Prior art keywords
- burner hearth
- furnace hearth
- flame
- inner chamber
- combustion chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a furnace hearth set for synthesizing crystals by using a flame fusion method. The furnace hearth set comprises a material supplying device, a hydrogen supplying system, a combustion chamber, a furnace hearth, a supporting post and a descending mechanism; a furnace hearth crystallizing area of the inner cavity of the furnace hearth has a fusiform curve structure; the cross section of the inner cavity of the furnace hearth is of an elliptic structure; the axial length of the inner cavity of the furnace hearth crystallizing area is greater than the axial lengths of an upper port and a lower port of the furnace hearth; and a spout of a spray nozzle on the combustion chamber is designed to have an elliptic structure matched with the furnace hearth. The furnace hearth set has the advantages that: the inner cavity of the furnace hearth is designed to have a circular or elliptic fusiform curve structure, so that oxyhydrogen flame flows freely and smoothly and a vortex flow in the inner cavity of the furnace hearth is avoided; the spout of the spray nozzle in the combustion chamber is designed to be matched with the furnace hearth, so that the shape of the furnace hearth is similar to that of the oxyhydrogen flame and a temperature field which has the advantage that the crystal is synthesized more uniformly compared with that of the conventional flame fusion method is constructed; the longitudinal temperature gradient and the transverse temperature gradient are small; and the furnace hearth set is suitable for producing large-diameter crystals and circular, elliptic and oblate crystals with small defects and good hair degree.
Description
Technical field
The present invention relates to a kind of crystal synthetic burner hearth group, especially a kind of flame melt method composite crystals burner hearth group.
Background technology
At present, flame melt method composite crystals burner hearth group, as shown in Figure 1:
Oxygen is being with main (assisting) material to enter combustion chamber 2 through nozzle 21, with H
2Enter combustion chamber (10), H
2With O
2Proportional at H
2, O
2After mix combustion chamber 2, the oxyhydrogen flame that has powder that forms, simultaneously powder is brought into burner hearth 3, powder melts through the high-temperature zone between 100mm～150mm, constantly drop on the crystal 41, simultaneously, the crystal 41 that following descending mechanism 5 drives holder post 4 and constantly growth descends, and grows up to the crystal of desired size in specific time.
Because traditional general burner hearth 3 inner chambers and the shape of flame Fig. 5 are inconsistent, flame is the 32 generation eddy current in the inboard wall of burner hearth turning point easily, cause interior transverse temperature of stove and longitudinal temperature gradient big, and crystal diameter is difficult for growing up, and the matter crystal internal defect of being produced is more.Be difficult for satisfying the synthetic above rod-like crystal of diameter 40mm, especially oval or oblate crystalline requirement.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of temperature even, mobile freely, suitable good, major diameter crystalline flame melt method composite crystals burner hearth group of the quality of production of oxyhydrogen flame.
In order to solve the problems of the technologies described above, the technical solution adopted for the present invention to solve the technical problems is: a kind of flame melt method composite crystals burner hearth group is provided, comprise that feed device, hydrogen-feeding system, combustion chamber, burner hearth, holder post reach descending mechanism down, the burner hearth crystallizing field of described burner hearth cavity is the spindle-type curvilinear structures, the cross section of burner hearth cavity is an ellipsoidal structure, the shaft length of burner hearth crystallizing field inner chamber is greater than the shaft length of burner hearth upper and lower port, and the orifice design of nozzle is the ellipsoidal structure suitable with burner hearth on the described combustion chamber.
Wherein, the shaft length of described burner hearth upper port inner chamber is 24mm～36mm, and the shaft length of described burner hearth lower port inner chamber is 85mm～118mm, and the minor axis length of described burner hearth crystallizing field inner chamber is that 60mm～90mm, long axis length are 100mm～150mm.
Wherein, the spout minor axis length of described nozzle is that 6.5mm～8mm, long axis length are 8mm～12mm.
Wherein, the cross section of described burner hearth cavity is a circular configuration, and the orifice design of nozzle is the circular configuration suitable with burner hearth in the described combustion chamber.
Wherein, the diameter of described burner hearth upper port inner chamber is 24mm～36mm, and the diameter of described burner hearth lower port inner chamber is 85mm～118mm, and the diameter of described burner hearth crystallizing field inner chamber is 100mm～150mm.
Wherein, the nozzle diameter of described nozzle is 6.5mm～12mm.
The invention has the beneficial effects as follows that for being made as circle or oval spindle-type curvilinear structures, it is smooth and easy freely to make that oxyhydrogen flame flows with burner hearth cavity, burner hearth cavity does not produce eddy current.The orifice design of nozzle is suitable with burner hearth in the combustion chamber, make the burner hearth shape similar to the oxyhydrogen flame shape, build than warm uniformly of the molten flame method composite crystals of routine, longitudinal temperature and transverse temperature gradient are little, be fit to production major diameter crystal, and the circle that defective is few, the hair degree is good, ellipse and oblate crystal.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
Fig. 1 is the one-piece construction synoptic diagram of common flame melt method composite crystals burner hearth group;
Fig. 2 is the one-piece construction synoptic diagram of flame melt method composite crystals burner hearth group of the present invention;
Fig. 3 is the structural representation of oval nozzle among the flame melt method composite crystals burner hearth group embodiment of the present invention;
Fig. 4 is the structural representation of circular nozzle among the flame melt method composite crystals burner hearth group embodiment of the present invention;
Fig. 5 is the synoptic diagram of nozzle flame among the flame melt method composite crystals burner hearth group embodiment of the present invention.
Wherein, 1: feed device; 11: material guiding pipe; 12: hydrogen-feeding system;
2: the combustion chamber; 21: nozzle; 22: spout; 23: the high-temperature zone; 24: cool flame;
3: burner hearth; 31: thermal insulation layer; 32: the inboard wall of burner hearth turning point;
4: the holder post; 41: crystal; 5: following descending mechanism.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, realized purpose and effect, give explanation below in conjunction with embodiment and conjunction with figs. are detailed.
Embodiment 1
See also Fig. 2, Fig. 3 and Fig. 5, flame melt method composite crystals burner hearth group embodiment of the present invention comprises that feed device 1, hydrogen-feeding system 12, combustion chamber 2, burner hearth 3, holder post 4 reach descending mechanism 5 down, along with knocking and spur screen cloth, shake feed device 1, make the powder of 1 li of feed device fall, this powder is y-Al
2O
3, by O
2By material guiding pipe 11 powder is delivered to nozzle 21, and H
2By combustion chamber 2 mixed firings, form the oxyhydrogen flame of band powder, enter in the burner hearth 3, drop on from level to level on the crystal 41, along with crystal 41 is constantly grown up, simultaneously, following descending mechanism 5 bit by bit descends synchronously, in specific time, grows up to needed crystal 41.
Described burner hearth 3 skins are thermal insulation layer 31, burner hearth 3 inner chambers are the spindle-type curvilinear structures, no longer include replicated structures on burner hearth 3 internal chamber walls, the cross section of burner hearth 3 inner chambers is an ellipsoidal structure, shaft length according to demand of practical production design inner chamber, the shaft length of burner hearth crystallizing field inner chamber is greater than the shaft length of burner hearth 3 upper and lower ports, generally with the shaft length of lower port shaft length greater than upper port, and greater than crystal 41 diameter of growing up, the spout 22 of nozzles 21 is designed to the ellipsoidal structure suitable with burner hearth 3 in the described combustion chamber 2.
Pass through said structure, the oxyhydrogen flame of 2 ejections as shown in the figure from the combustion chamber, profile presents similar spindle-type curvilinear structures, and oxyhydrogen flame comprises the cool flame 24 and the outer field high-temperature zone 23 of internal layer, sets corresponding height, make crystal 41 vitellarium be positioned at highest temperature zone near, the oxyhydrogen flame band powder, enters swimmingly in the burner hearth 3 of spindle-type curvilinear structures, and the two shape is matched, oxyhydrogen flame flows smooth and easy freely, and burner hearth 3 inner chambers do not produce eddy current.The spout 22 of nozzle 21 is designed to burner hearth 3 suitable in the combustion chamber 2, make that burner hearth 3 shapes are similar to the oxyhydrogen flame shape, build than warm uniformly of the molten flame method composite crystals 41 of routine, longitudinal temperature and transverse temperature gradient are little, be fit to production major diameter crystal 41, and the circle that defective is few, the hair degree is good, ellipse and oblate crystal 41.
In the present embodiment, the shaft length of described burner hearth upper port inner chamber is 24mm～36mm, and the shaft length of described burner hearth lower port inner chamber is 85mm～118mm, and the minor axis length of described burner hearth crystallizing field inner chamber is that 60mm～90mm, long axis length are 100mm～150mm.The spout 22 of described nozzle 21 is designed to the ellipsoidal structure suitable with burner hearth 3, and the spout minor axis length of described nozzle is that 6.5mm～8mm, long axis length are 8mm～12mm.
Table one: oval burner hearth, nozzle structure table look-up
According to the burner hearth 3 and the spout 22 of above-mentioned shaft length design, in order to synthetic corundum crystal 41, the result of test such as following table:
Table two: the quality grade of oval half boule
From table one and table two as can be known, adopt this flame melt method composite crystals burner hearth group, can synthesize ellipse or oblate crystal 41.And crystal diameter is big, and internal soundness is good, has reached the quality that improves product, increases the purpose of crystal yield.
See also Fig. 2 and Fig. 4, present embodiment is improved on the basis of embodiment 1.
In the present embodiment, the cross section of described burner hearth 3 inner chambers is a circular configuration, and the spout 22 of nozzles 21 is designed to the circular configuration suitable with burner hearth 3 in the described combustion chamber 2.The diameter of described burner hearth upper port inner chamber is 24mm～36mm, and the diameter of described burner hearth lower port inner chamber is 85mm～118mm, and the diameter of described burner hearth crystallizing field inner chamber is 100mm～150mm.The nozzle diameter of described nozzle is 6.5mm～12mm
Table three: spherical hearth, nozzle structure table look-up
Burner hearth 3 and spout 22 according to above-mentioned diameter design are used for synthetic corundum crystal 41, the result of test such as following table:
Table four: the quality grade of circular half boule
From table three and table four as can be known, adopt this flame melt method composite crystals burner hearth group, can synthesize rod-like crystal 41.And crystal diameter is big, and internal soundness is good, has reached and has improved the quality of products, and increases the purpose of crystal yield.
In the present embodiment, flame melt method composite crystals burner hearth group of the present invention not only has all properties of traditional type burner hearth group concurrently, invents on the curve of key, and is identical with traditional type, easy and simple to handle on the corresponding acquisition cost, and operation function is continuous, stable.
The above each embodiment and improvement thereof can be adjusted the collocation of each improvement project as required flexibly.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. flame melt method composite crystals burner hearth group, comprise that feed device, hydrogen-feeding system, combustion chamber, burner hearth, holder post reach descending mechanism down, it is characterized in that, the burner hearth crystallizing field of described burner hearth cavity is the spindle-type curvilinear structures, the cross section of burner hearth cavity is an ellipsoidal structure, the shaft length of burner hearth crystallizing field inner chamber is greater than the shaft length of burner hearth upper and lower port, and the orifice design of nozzle is the ellipsoidal structure suitable with burner hearth on the described combustion chamber.
2. flame melt method composite crystals burner hearth group according to claim 1, it is characterized in that, the shaft length of described burner hearth upper port inner chamber is 24mm～36mm, the shaft length of described burner hearth lower port inner chamber is 85mm～118mm, and the minor axis length of described burner hearth crystallizing field inner chamber is that 60mm～90mm, long axis length are 100mm～150mm.
3. flame melt method composite crystals burner hearth group according to claim 2 is characterized in that, the spout minor axis length of described nozzle is that 6.5mm～8mm, long axis length are 8mm～12mm.
4. flame melt method composite crystals burner hearth group according to claim 1 is characterized in that the cross section of described burner hearth cavity is a circular configuration, and the orifice design of nozzle is the circular configuration suitable with burner hearth in the described combustion chamber.
5. flame melt method composite crystals burner hearth group according to claim 4, it is characterized in that, the diameter of described burner hearth upper port inner chamber is 24mm～36mm, and the diameter of described burner hearth lower port inner chamber is 85mm～118mm, and the diameter of described burner hearth crystallizing field inner chamber is 100mm～150mm.
6. flame melt method composite crystals burner hearth group according to claim 5 is characterized in that the nozzle diameter of described nozzle is 6.5mm～12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097372.7A CN102206851B (en) | 2011-04-15 | 2011-04-15 | Furnace hearth set for synthesizing crystals by using flame fusion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110097372.7A CN102206851B (en) | 2011-04-15 | 2011-04-15 | Furnace hearth set for synthesizing crystals by using flame fusion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102206851A true CN102206851A (en) | 2011-10-05 |
| CN102206851B CN102206851B (en) | 2014-06-18 |
Family
ID=44695901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110097372.7A Expired - Fee Related CN102206851B (en) | 2011-04-15 | 2011-04-15 | Furnace hearth set for synthesizing crystals by using flame fusion method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102206851B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2224340Y (en) * | 1995-07-18 | 1996-04-10 | 李春雨 | Energy-saving multi-function water-steam two-purpose stove |
| CN1563509A (en) * | 2004-03-16 | 2005-01-12 | 东北大学 | Technique for fabricating monocystal of rutile through flame fusion method under controllable atmosphere and equipment |
| CN200992591Y (en) * | 2006-12-29 | 2007-12-19 | 万尤宝 | Crystal growing system by temperature gradient technique |
| CN201751783U (en) * | 2010-06-24 | 2011-02-23 | 苏州新长光热能科技有限公司 | Inner structure of high-efficiency and energy-saving aluminum and aluminum alloy isothermal smelting furnace |
| CN202039150U (en) * | 2011-04-15 | 2011-11-16 | 钮天然 | Flame-fusion-method synthetic crystal hearth group |
-
2011
- 2011-04-15 CN CN201110097372.7A patent/CN102206851B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2224340Y (en) * | 1995-07-18 | 1996-04-10 | 李春雨 | Energy-saving multi-function water-steam two-purpose stove |
| CN1563509A (en) * | 2004-03-16 | 2005-01-12 | 东北大学 | Technique for fabricating monocystal of rutile through flame fusion method under controllable atmosphere and equipment |
| CN200992591Y (en) * | 2006-12-29 | 2007-12-19 | 万尤宝 | Crystal growing system by temperature gradient technique |
| CN201751783U (en) * | 2010-06-24 | 2011-02-23 | 苏州新长光热能科技有限公司 | Inner structure of high-efficiency and energy-saving aluminum and aluminum alloy isothermal smelting furnace |
| CN202039150U (en) * | 2011-04-15 | 2011-11-16 | 钮天然 | Flame-fusion-method synthetic crystal hearth group |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102206851B (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180170792A1 (en) | Process of using a submerged combustion melter to produce hollow glass fiber or solid glass fiber having entrained bubbles, and burners and systems to make such fibers | |
| CN101570391B (en) | Process for producing arc quartz crucible by vacuum plus coating, equipment, product thereof | |
| CN107236992B (en) | A kind of flame melt method growing optics-level strontium titanate monocrystal body device | |
| CN102151964B (en) | Tungsten electrode argon arc welding gun | |
| CN105951169B (en) | A kind of big gradient visualization tubular type monocrystal growing furnace | |
| CN204747507U (en) | Be suitable for preparation 3D to print spray nozzle device with metal powder | |
| CN102580347B (en) | Continuous crystallization method of tetraacetylethylenediamine | |
| CN202039150U (en) | Flame-fusion-method synthetic crystal hearth group | |
| CN202170245U (en) | Polycrystalline silicon reduction furnace with multiple feeding points | |
| CN102206851B (en) | Furnace hearth set for synthesizing crystals by using flame fusion method | |
| CN106145615B (en) | Big pull amount calender | |
| CN1323194C (en) | Technique for fabricating monocystal of rutile through flame fusion method under controllable atmosphere and equipment | |
| CN108516808A (en) | The method that high-temperature fusant aeroponics prepare alumina-based nano eutectic composite micro-powder | |
| CN207108505U (en) | A kind of bubble-cap type can adjust nozzle of polycrystalline silicon reduction furnace | |
| CN201214631Y (en) | Polysilicon reduction furnace | |
| CN110372200A (en) | A kind of detachable blowtorch preparing preform for VAD method | |
| CN202808991U (en) | Zone-melting thermal field | |
| CN201942789U (en) | Seed crystal holding device used for producing solar-grade silicon single crystal | |
| CN115418708A (en) | Crystal cooling device used in crystal drawing | |
| CN201722158U (en) | Novel reducing furnace spray nozzle | |
| CN203653759U (en) | Furnace body cooling system of sapphire single crystal growth furnace | |
| CN201512417U (en) | 30-pair-rod polycrystalline silicon reducing furnace | |
| CN203007482U (en) | Sintering furnace for preparing alpha-Al2O3 by using gamma-Al2O3 | |
| CN106630559A (en) | Method for producing colored glass bottle by centrifugal casting | |
| CN103224318A (en) | Preparation method of low-hydroxyl large-diameter great-length solid quartz mound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 |