CN110193877A - Burner silicon carbide nozzle and its mold - Google Patents
Burner silicon carbide nozzle and its mold Download PDFInfo
- Publication number
- CN110193877A CN110193877A CN201910504484.6A CN201910504484A CN110193877A CN 110193877 A CN110193877 A CN 110193877A CN 201910504484 A CN201910504484 A CN 201910504484A CN 110193877 A CN110193877 A CN 110193877A
- Authority
- CN
- China
- Prior art keywords
- inside casing
- silicon carbide
- outline border
- flow distribution
- plate
- 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.)
- Pending
Links
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 229910010271 silicon carbide Inorganic materials 0.000 title claims abstract description 41
- 238000009826 distribution Methods 0.000 claims abstract description 36
- 239000002817 coal dust Substances 0.000 claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 26
- 238000005266 casting Methods 0.000 claims description 12
- 238000000465 moulding Methods 0.000 claims description 11
- 210000003781 tooth socket Anatomy 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 239000002984 plastic foam Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
- F23D2201/10—Nozzle tips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2201/00—Burners adapted for particulate solid or pulverulent fuels
- F23D2201/20—Fuel flow guiding devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Products (AREA)
Abstract
Present invention discloses burner silicon carbide nozzles, including outline border, inside casing, support column and flow distribution plate, it is characterized by comprising for assembling coal dust reflux in the conflux component of inside casing center, the conflux component includes steady flame tooth and gear angle, the steady flame tooth is connected in inside casing a pair of sidewalls and is located on the inside of the lesser port of inside casing, the steady flame tooth is arranged in the same direction with flow distribution plate, there are equidistant gap digits between the side wall of inside casing respectively at the both ends of steady flame tooth, the corner position of the small end mouth of the inside casing is equipped with gear angle, each angle that keeps off is towards inside casing center, the surface at gear angle flushes setting with the surface of inside casing, the gear angle and the side wall junction of inside casing form block piece.The present invention is suitable for the mould structure of silicon carbide nozzle, facilitates demoulding not damaged.
Description
Technical field
The invention belongs to burner manufacturing technology field more particularly to a kind of burner silicon carbide nozzle and its molds.
Background technique
Burner is that the device for making fuel and air spray fuel combination in a certain way is referred to as, and air provides combustion for fuel
Oxygen necessary to burning, and ignited fuel combination by igniter, therefore, mixing with air fuel uniformly fills burning
It is vital for dividing, when especially wind coal dust intermixture is as fuel, because its burning velocity is fast, it is necessary to assure has sufficient sky
Gas is uniformly contacted with wind coal dust intermixture, and the full combustion of wind coal dust intermixture can just be better achieved, and prevents the waste of fuel.
Traditional burner nozzle is using the structure for pouring cast steel, the changeable flame kernel of appropriate swing of burner nozzle
Position, with adjust reheat steam temperature level；The burner nozzle of traditional steel construction is usually intolerant to 1000 degrees Celsius or more
High temperature, be easy to happen deformation, deformation rear jet size and full size deviation are big, and the initial momentum of jet stream is compared with before non-scaling loss
Momentum is reduced, and range shortens, and rigidity is also poor, and coal dust nearby catches fire in spout, and nearby temperature is high for spout, is also easy to produce slagging.Combustion
Need to carry out replacement processing after burner First air nozzle scaling loss, when replacement need to unlock the tube cell that combustor external connects, and will burn
Device First air jet pipe and nozzle are replaced after pulling out together, are reloaded into, and heavy workload, environment is poor, take a lot of work, is time-consuming, making
At very huge economic loss.
Existing silicon carbide nozzle has characteristic wear-resisting, corrosion-resistant, resistant to high temperature, is suitable for boiler-burner, will not be with
Temperature is raw high and deforms.Silicon carbide nozzle includes the outline border enclosed and the inside casing in outline border, is provided in inside casing round and smooth
Bluff body windward, although windward side can effectively reduce resistance, since it is excessively round and smooth, coal dust is easy blow-off nozzle, is unable to fully
Burning causes flame hurricane string unstable；The bluff body of symmetrical airfoil necessarily causes in nozzle while pursuing the effect for reducing resistance
The inhomogeneities of thermal energy transmitting, thermal stress amplitude of variation is unstable, can not reach the maximal efficiency of boiler；Conventional silicon carbide nozzle
Moulding by casting is carried out according to the mold of steel construction, carries out demoulding after being fully cured, since the interval of outline border and inside casing is arranged, is led
It causes steel construction mold or wood mold coupled demoulding difficult, is also required to expend more manpower, processing efficiency during carrying out die-filling
It is low.
Summary of the invention
The purpose of the present invention is to solve above-mentioned technical problems, and provide a kind of burner silicon carbide nozzle and its mould
Tool facilitates demoulding not damaged to realize the mould structure for providing and being suitable for silicon carbide nozzle.In order to achieve the above object, originally
Inventive technique scheme is as follows:
Burner silicon carbide nozzle, including outline border, inside casing, support column and flow distribution plate, including for assembling coal dust reflux
Conflux component in inside casing center, the conflux component includes steady flame tooth and gear angle, including the steady flame tooth is separately connected
In frame a pair of sidewalls and it is located on the inside of the lesser port of inside casing, the steady flame tooth is arranged in the same direction with flow distribution plate, the both ends of steady flame tooth
Respectively there are equidistant gap digit between the side wall of inside casing, the corner position of the small end mouth of the inside casing is equipped with gear angle,
Towards inside casing center, the surface for keeping off angle flushes setting, the side wall junction at the gear angle and inside casing with the surface of inside casing at each gear angle
Form block piece.
Specifically, the end of the flow distribution plate is connected between the opposite another pair side wall of inside casing and will be in inside casing
Portion space etc. point interval, the air inlet end margin of the flow distribution plate have the anteposition plate with its consistency of thickness, the both ends point of anteposition plate
There are equidistant vacancy between the side wall of inside casing.
Specifically, the inside casing is set to inside outline border and is formed between outline border gap, the inside casing has there are two port,
Inside casing is narrowed from one of port to another port, the biggish one end air inlet in inside casing port, the lesser one end in inside casing port
Outlet air.
Specifically, the support column is uniformly arranged in gap and the outer wall of the inner wall of support column connection outline border and inside casing.
Specifically, the opposite outline border side wall and inside casing side wall for connecting the flow distribution plate is equipped with corresponding fixation hole,
Side outline border side wall and its opposite inside casing side wall with fixation hole are equipped with perforative several connecting holes, and connecting hole is symmetrically set in
Fixation hole two sides.
Burner silicon carbide nozzle mold, it is characterised in that: including bottom plate, be successively placed on compartment of terrain on bottom plate one by one
Internal model, middle mould, external mold and lid close internal model and middle mould fixed plate, between the external mold and the middle mould be equipped with outline border at
Type chamber, is equipped with inside casing forming cavity between the middle mould and the internal model, the middle mould includes several middle plate faces enclosed, each middle plate
The center in face offers support column preformed hole vertically, and the internal model includes interior pedestal, the platen at the top of interior pedestal, sets
Cavity is reserved in the flow distribution plate of interior base interior and is set to the steady flame tooth socket of interior two sides of base, and the flow distribution plate reserves cavity four
Face periphery each extends over the four sides periphery for being connected to interior pedestal, in the steady flame tooth socket is extended to from the outside of interior pedestal and with point
Flowing plate is reserved cavity and is arranged in the same direction, and the middle mould and internal model are made of plastic foam material, outline border forming cavity and interior after demoulding
Integrated moulding by casting in frame forming cavity.
Specifically, flushing setting at the top of the interior pedestal and at the top of middle plate face, it is higher than outer mold top at the top of the interior pedestal,
The fixed plate is glued and placed in the top of interior pedestal and middle plate face.
Specifically, the external mold two sides are equipped with the fixed link through middle mould and internal model, it is located on the side wall of the external mold solid
The two sides of fixed pole are equipped with the pull rod for extending to internal model.
Specifically, carrying out mould and internal model in moulding by casting burn off in silicon carbide nozzle mold, burner silicon carbide is formed
Nozzle, structure is corresponding with outline border after being poured between the external mold and middle mould, structure and branch after the support column preformed hole casting
Dagger is corresponding, and structure is corresponding with inside casing after being poured between the middle mould and internal model, after the steady flame tooth socket casting structure and
Steady flame tooth is corresponding.
Specifically, the position of the fixed link is corresponding with fixation hole, the position of the pull rod is corresponding with connecting hole.
Compared with prior art, burner of the present invention is mainly reflected in the beneficial effect of silicon carbide nozzle and its mold:
Middle mould and internal model are made using foamed plastics, after silicon carbide nozzle curing molding, direct burn off, temperature can
Control does not need energy consumption excessively, and demoulding is easy, and avoids dismantling mold repeatedly, and formed product rate is high, save the cost；Silicon carbide material
Nozzle have characteristic wear-resisting, corrosion-resistant, resistant to high temperature, will not deform as the temperature rises, support column connect outline border with
Inside casing has structured stability, without opening expansion slot on outline border, inside casing or flow distribution plate；In inside casing lead to First air, outline border with it is interior
Gap between frame leads to Secondary Air, and wind range side length improves nozzle rigidity, and coal dust reduces nozzle temperature, prolong far from jet combustion
Long-life.
Flow distribution plate is by inner space of inside casing etc. point interval and anteposition plate has with stack piles such as flow distribution plates, thermal energy in nozzle
Amount transmitting is very uniform, and thermal stress amplitude of variation caused by avoiding wind-force flowing too fast is unstable；Sky between anteposition plate and inside casing
Position, can allow coal dust to have the effect of spatial flow, so that coal powder light-dark separates, burn more abundant, improve boiler-burner
Efficiency；Steady flame tooth and gear angle and block piece cooperate coal dust reflux conflux to the gap digit between inside casing in flow distribution plate before uniform thickness
The hardened structure in position sprays flame molding and stablizes, guarantees that burning is more abundant.
Detailed description of the invention
Fig. 1 is one of silicon carbide nozzle arrangements schematic diagram in the embodiment of the present invention；
Fig. 2 is two of silicon carbide nozzle arrangements schematic diagram in the present embodiment；
Fig. 3 is silicon carbide nozzle mold overall structure diagram in the present embodiment；
Fig. 4 is middle mould and internal model structure schematic diagram in the present embodiment；
Fig. 5 is internal model structure schematic diagram in the present embodiment；
Digital representation in figure:
1 outline border, 11 support columns；
2 inside casings, 21 flow distribution plates, 22 steady flame teeth, 23 anteposition plates, 24 vacancy, 25 gap digits, 26 gear angles, 27 block pieces；
3 fixation holes, 31 connecting holes, 32 fixed links, 33 pull rods；
4 bottom plates, 41 second mounting bars；
5 internal models, pedestal, 52 platens, 53 flow distribution plates reserve cavity, 54 steady flame tooth sockets, 55 block piece reserved places in 51；
Mould in 6, plate face, 62 support column preformed holes in 61；
7 external molds, 71 first outer plate surfaces, 72 second outer plate surfaces, 73 first mounting bars；
8 fixed plates.
Specific embodiment
With reference to the accompanying drawing by the technical scheme in the embodiment of the invention is clearly and completely described, it is clear that retouched
The embodiment stated is only a part of the embodiment of the present invention, instead of all the embodiments.
Embodiment 1:
Referring to Fig.1 shown in -2, the present embodiment is silicon carbide nozzle, boiler inner burner structure is used for, by silicon carbide cast
Molding, including outline border 1, inside casing 2, support column 11, flow distribution plate 21 and for assembling coal dust reflux in the poly- of inside casing center
Component is flowed, conflux component includes steady flame tooth 54 and gear angle 26.
The tool of inside casing 2 is there are two port, and inside casing 2 is narrowed from one of port to another port, and 2 port of inside casing is biggish
One end air inlet, the lesser one end outlet air in 2 port of inside casing；Inside casing 2 is set to 1 inside of outline border and forms gap between outline border 1, and interior
Frame 2 and the shape of outline border 1 match；The quantity of support column 11 is four in the present embodiment, and four support columns 11 are uniformly arranged on
In gap, and support column 11 connects the inner wall of outline border 1 and the outer wall of inside casing 2；The quantity of flow distribution plate 21 is two in the present embodiment,
The end of two flow distribution plates 21 is connected between the opposite a pair of sidewalls of inside casing 2 and will be between the inner space equal part of inside casing 2
There is the anteposition plate 23 with its consistency of thickness every the air inlet end margin of, flow distribution plate 21, the both ends of anteposition plate 23 respectively with 2 phase of inside casing
Pair a pair of sidewalls between there are equidistant vacancy 24；Two steady flame teeth 22 be connected on 2 another pair side wall of inside casing and
On the inside of the lesser port of nozzle, steady flame tooth 22 is bar shaped square body structure, and steady flame tooth 22 is arranged in the same direction with flow distribution plate 21, surely
There are equidistant gap digits 25 between the side wall of inside casing 2 respectively at the both ends of flame tooth 22.The corner position of the small end mouth of inside casing 2
Be equipped with gear angle 26, towards 2 center of inside casing, the surface for keeping off angle 26 flushes setting with the surface of inside casing at each angle 26 that keeps off, keep off angle 26 and
2 side wall junction of inside casing forms block piece 27, and coal dust is effectively gathered in reflux at gear angle 26 by block piece 27 to be made in the center of inside casing 2
Obtain coal dust full combustion.
The nozzle of silicon carbide material has characteristic wear-resisting, corrosion-resistant, resistant to high temperature, will not become as the temperature rises
Shape, support column 11 connects outline border 1 and inside casing 2, has structured stability, swollen without opening on outline border 1, inside casing 2 or flow distribution plate 21
Swollen slot；Leading to First air in inside casing 2, the gap between outline border 1 and inside casing 2 leads to Secondary Air, and wind range side length improves nozzle rigidity,
Coal dust reduces nozzle temperature far from jet combustion, extends the service life.
Flow distribution plate 21 is by inner space of inside casing 2 etc. point interval and anteposition plate 23 is with stack piles are waited with flow distribution plate 21, sprays
Thermal energy transmitting is very uniform in mouth, and thermal stress amplitude of variation caused by avoiding wind-force flowing too fast is unstable；Anteposition plate 23 with it is interior
Vacancy 24 between frame 2, can allow coal dust to have the effect of spatial flow, so that coal powder light-dark separates, burn more abundant, improve
The efficiency of boiler-burner；Steady flame tooth 22 and gear angle 26 and block piece 27 to the gap digit between inside casing 2, match coal dust reflux conflux
23 structure of anteposition plate for closing uniform thickness in flow distribution plate 21 sprays flame molding and stablizes, guarantees that burning is more abundant.
Opposite 1 side wall of outline border and 2 side wall of inside casing of connection flow distribution plate 21 is equipped with corresponding fixation hole 3, has solid
1 side wall of side outline border and its opposite 2 side wall of inside casing for determining hole 3 are equipped with perforative several connecting holes 31, and connecting hole 31 is symmetrically set
In 3 two sides of fixation hole.For connecting with the fixed link 32 of nozzle body component, connecting hole 31 is used to connect with pull rod 33 fixation hole 3,
Convenient for nozzle oscillation, nozzle body component and pull rod 33 are the structural member on boiler.
Embodiment 2:
Referring to shown in Fig. 3-5, the present embodiment is silicon carbide nozzle mold, including bottom plate 4, is successively placed on bottom plate 4 one by one
On internal model 5, middle mould 6, external mold 7 and lid close internal model 5 and middle mould 6 fixed plate 8.Wherein, middle mould 6 and internal model 5 use plastics
Foam is made, and plastic foam includes PVC, PE, PF, and lower than 300 DEG C, easily removal, foam density select 20-30kg/m to temperature3。
Outline border forming cavity is equipped between external mold 7 and middle mould 6, it is in low wide and up narrow that external mold 7 is installed on bottom plate 4 including enclosing
The first outer plate surface of a pair 71 and the second outer plate surface of another pair 72, the setting corresponding with bottom plate 4 of the bottom structure of external mold 7；First
71 side of outer plate surface is set to the inside of the second outer plate surface 72.71 edge of the first outer plate surface of gear is installed in the second outer plate surface 72
First mounting bar 73, the first mounting bar 73 pass through the fixed locking of installation part to the second outer plate surface 72.
Bottom plate 4 is rectangular laminated structure, and second mounting bar 41 at 7 edge of gear external mold, the second installation are equipped on bottom plate 4
Item 41 passes through the fixed locking of installation part to bottom plate 4.The bottom lengths of second outer plate surface 72 are consistent with the side edge length of bottom plate 4, the
The bottom lengths of one outer plate surface 71 are less than the side edge length of bottom plate 4.
Inside casing forming cavity is equipped between middle mould 6 and internal model 5, it is in low wide and up narrow that middle mould 6 is installed on bottom plate 4 including enclosing
Several middle plate faces 61, support column preformed hole 62 is offered in each middle plate face 61 vertically, support column preformed hole 62 is set to middle plate face
61 center.
Internal model 5 includes in low wide and up narrow interior pedestal 51, the platen 52 at the top of interior pedestal 51, is set in interior pedestal 51
The flow distribution plate in portion reserves cavity 53 and is set to the interior steady flame tooth socket 54 in 51 two sides of pedestal.Flow distribution plate reserves 53 four sides periphery of cavity
The four sides periphery for being connected to interior pedestal 51 is each extended over, steady flame tooth socket 54 extends to interior and and flow distribution plate from the outside of interior pedestal 51
The reserved setting in the same direction of cavity 53.Block piece reserved place 55 is equipped with the junction of platen 52 between the adjacent wall of interior pedestal 51.
Setting is flushed at the top of interior 51 top of pedestal and middle plate face 61, and 7 top of external mold is higher than at the top of interior pedestal 51.Fixed plate 8
It is glued and placed in the top of interior pedestal 51 and middle plate face 61.The circumferential direction of fixed plate 8 is locked by installation part to interior pedestal.Internal model
Gap is respectively kept between 5 and middle mould 6, between middle mould 6 and external mold 7.
7 two sides of external mold are equipped with the fixed link 32 through middle mould 6 and internal model 5, are located at the two of fixed link 32 on the side wall of external mold 7
Side is equipped with the pull rod 33 for extending to internal model 5.
It is poured, the silicon carbide castable got ready is injected in mold, curing and demolding is put in silicon carbide nozzle mold
Enter in high-temperature baking furnace or use electric-heating-wire-heating mode, 5 burn off of middle mould 6 and internal model is removed solid after the molding of silicon carbide nozzle
Fixed board 8 and bottom plate 4.
Structure is corresponding with outline border 1 after being poured between external mold 7 and middle mould 6, structure and branch after support column preformed hole 62 is poured
Dagger 11 is corresponding, and structure is corresponding with inside casing 2 after being poured between middle mould 6 and internal model 5, after steady flame tooth socket 54 is poured structure with surely
Flame tooth 22 is corresponding, after casting demould fixed link 32 position it is corresponding with fixation hole 3, after casting demould pull rod 33 position and
Connecting hole 31 is corresponding.It is corresponding with block piece 27 that block piece reserved place 55 is demoulded after casting.
When using the present embodiment, middle mould 6 and internal model 5 are made using foamed plastics, after silicon carbide nozzle curing molding, directly
Burn off is connect, temperature-controllable does not need energy consumption excessively, and demoulding is easy, and avoids dismantling mold repeatedly, and formed product rate is high, section
About cost.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. burner silicon carbide nozzle, including outline border, inside casing, support column and flow distribution plate, it is characterised in that: including for assembling
Coal dust flows back in the conflux component of inside casing center, and the conflux component includes steady flame tooth and gear angle, the steady flame tooth difference
It is connected in inside casing a pair of sidewalls and is located on the inside of the lesser port of inside casing, the steady flame tooth is arranged in the same direction with flow distribution plate, steady flame
Respectively between the side wall of inside casing there are equidistant gap digit, the corner position of the small end mouth of the inside casing is all provided at the both ends of tooth
There is gear angle, towards inside casing center, the surface for keeping off angle flushes setting, the side wall at the gear angle and inside casing with the surface of inside casing at each angle that keeps off
Junction forms block piece.
2. burner according to claim 1 silicon carbide nozzle, it is characterised in that: the end of the flow distribution plate connects respectively
It connects between the opposite another pair side wall of inside casing and is spaced inner space of inside casing etc. point, the air inlet end margin of the flow distribution plate
With the anteposition plate with its consistency of thickness, there are equidistant vacancy between the side wall of inside casing respectively at the both ends of anteposition plate.
3. burner according to claim 1 silicon carbide nozzle, it is characterised in that: the inside casing is set to inside outline border simultaneously
Gap is formed between outline border, there are two ports for the inside casing tool, and inside casing is narrowed from one of port to another port, interior
The biggish one end air inlet in frame port, the lesser one end outlet air in inside casing port.
4. burner according to claim 3 silicon carbide nozzle, it is characterised in that: between the support column is uniformly arranged on
In gap and support column connects the inner wall of outline border and the outer wall of inside casing.
5. burner according to claim 1 silicon carbide nozzle, it is characterised in that: connect the opposite of the flow distribution plate
Outline border side wall and inside casing side wall are equipped with corresponding fixation hole, side outline border side wall and its opposite inside casing side with fixation hole
Wall is equipped with perforative several connecting holes, and connecting hole is symmetrically set in fixation hole two sides.
6. burner silicon carbide nozzle mold is manufactured with silicon carbide nozzle according to burner according to claim 5,
Be characterized in that: including bottom plate, successively be placed on one by one the internal model of compartment of terrain on bottom plate, middle mould, external mold and lid close internal model and in
The fixed plate of mould is equipped with outline border forming cavity between the external mold and the middle mould, be equipped between the middle mould and the internal model interior
Frame forming cavity, the middle mould include several middle plate faces enclosed, and it is reserved that the center of each middle plate face offers support column vertically
Hole, the internal model include interior pedestal, the platen at the top of interior pedestal, set on interior base interior flow distribution plate reserve cavity, with
And it is set to the steady flame tooth socket of interior two sides of base, the flow distribution plate reserves cavity four sides periphery and each extends over the four sides for being connected to interior pedestal
Periphery in the steady flame tooth socket is extended to from the outside of interior pedestal and is reserved cavity with flow distribution plate and is arranged in the same direction, the middle mould and
Internal model is made of plastic foam material, integrated moulding by casting in outline border forming cavity and inside casing forming cavity after demoulding.
7. burner according to claim 6 silicon carbide nozzle mold, it is characterised in that: at the top of the interior pedestal in
Setting is flushed at the top of plate face, is higher than outer mold top at the top of the interior pedestal, the fixed plate is glued and placed in interior pedestal and middle plate face
Top.
8. burner according to claim 7 silicon carbide nozzle mold, it is characterised in that: the external mold two sides are equipped with and pass through
The fixed link of middle mould and internal model is worn, the two sides that fixed link is located on the side wall of the external mold are equipped with the pull rod for extending to internal model.
9. burner according to claim 8 silicon carbide nozzle mold, it is characterised in that: in silicon carbide nozzle mold into
Mould and internal model in row moulding by casting burn off form burner silicon carbide nozzle, structure after being poured between the external mold and middle mould
Corresponding with outline border, structure is corresponding with support column after the support column preformed hole casting, is poured between the middle mould and internal model
Structure is corresponding with inside casing afterwards, and structure is corresponding with steady flame tooth after the steady flame tooth socket casting.
10. burner according to claim 9 silicon carbide nozzle mold, it is characterised in that: the position of the fixed link
Corresponding with fixation hole, the position of the pull rod is corresponding with connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504484.6A CN110193877A (en) | 2019-06-12 | 2019-06-12 | Burner silicon carbide nozzle and its mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504484.6A CN110193877A (en) | 2019-06-12 | 2019-06-12 | Burner silicon carbide nozzle and its mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110193877A true CN110193877A (en) | 2019-09-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910504484.6A Pending CN110193877A (en) | 2019-06-12 | 2019-06-12 | Burner silicon carbide nozzle and its mold |
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| KR19990078966A (en) * | 1999-08-25 | 1999-11-05 | 장기풍 | manufacturing method of burner and the burner thereof |
| CN1407274A (en) * | 2001-09-05 | 2003-04-02 | 清华同方股份有限公司 | Coal powder direct supplying burner |
| CN1759957A (en) * | 2005-10-27 | 2006-04-19 | 西安建筑科技大学 | Technique for manufacturing wearable pipe made from composite bimetal |
| CN101693388A (en) * | 2009-10-16 | 2010-04-14 | 湖南华菱涟源钢铁有限公司 | Method for casting lining of blast furnace air supply device by using lost foam |
| WO2010081271A1 (en) * | 2008-12-30 | 2010-07-22 | 上海锅炉厂有限公司 | Rapidly-ignited pulverized coal nozzle |
| CN205119116U (en) * | 2015-10-23 | 2016-03-30 | 苏州上春仪监测程控设备制造有限公司 | Baffle ring |
| CN109185875A (en) * | 2018-08-26 | 2019-01-11 | 苏州上春仪监测程控设备制造有限公司 | A kind of boiler-burner silicon carbide nozzle |
| CN211729617U (en) * | 2019-06-12 | 2020-10-23 | 苏州上春仪监测程控设备制造有限公司 | Silicon carbide nozzle for combustor and mold thereof |
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- 2019-06-12 CN CN201910504484.6A patent/CN110193877A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990078966A (en) * | 1999-08-25 | 1999-11-05 | 장기풍 | manufacturing method of burner and the burner thereof |
| CN1407274A (en) * | 2001-09-05 | 2003-04-02 | 清华同方股份有限公司 | Coal powder direct supplying burner |
| CN1759957A (en) * | 2005-10-27 | 2006-04-19 | 西安建筑科技大学 | Technique for manufacturing wearable pipe made from composite bimetal |
| WO2010081271A1 (en) * | 2008-12-30 | 2010-07-22 | 上海锅炉厂有限公司 | Rapidly-ignited pulverized coal nozzle |
| CN101693388A (en) * | 2009-10-16 | 2010-04-14 | 湖南华菱涟源钢铁有限公司 | Method for casting lining of blast furnace air supply device by using lost foam |
| CN205119116U (en) * | 2015-10-23 | 2016-03-30 | 苏州上春仪监测程控设备制造有限公司 | Baffle ring |
| CN109185875A (en) * | 2018-08-26 | 2019-01-11 | 苏州上春仪监测程控设备制造有限公司 | A kind of boiler-burner silicon carbide nozzle |
| CN211729617U (en) * | 2019-06-12 | 2020-10-23 | 苏州上春仪监测程控设备制造有限公司 | Silicon carbide nozzle for combustor and mold thereof |
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