CN104764008B - Novel combustor and Al2O3 coating treating method of main part of combustor - Google Patents
Novel combustor and Al2O3 coating treating method of main part of combustor Download PDFInfo
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- CN104764008B CN104764008B CN201510133770.8A CN201510133770A CN104764008B CN 104764008 B CN104764008 B CN 104764008B CN 201510133770 A CN201510133770 A CN 201510133770A CN 104764008 B CN104764008 B CN 104764008B
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- cylinder
- circular plate
- primary air
- pipe
- diameter
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
Abstract
The invention relates to a novel combustor and an Al2O3 coating treating method of a main part of the combustor. The combustor comprises a gas pipeline (A), a primary air uniform-flowing barrel (B), a primary air inlet (C), a secondary air adjusting barrel (D) and a secondary air inlet (E). The method comprises the steps of removing oil; rinsing through deionized water; plating aluminum on the surface of the part by the hot dipping technology; preparing an aqueous electrolyte solution; placing the main part as an anode into the aqueous electrolyte solution; electroplating through a micro-arc oxidation device; preparing for 150 to 180 minutes to obtain an Al2O3 coating being 200 to 300 microns in thickness. According to the technical scheme, the method has the characteristics that the production efficiency is greatly increased, the product quality is improved, the energy can be saved, the cost can be saved, the environmental pollution can be reduced, the service life is long, and the repair is convenient.
Description
Technical field
The present invention relates to a kind of burner, more particularly to a kind of new burner and its critical piece Al2O3At coating
Reason method.
Background technology
With the attention to steel products quality and cost, the baking to ladle, pans, ferrum bag etc. (hereinafter referred to as ladle)
Roasting temperature and energy consumption propose requirements at the higher level.On the one hand require ladle baking is to higher temperature and temperature is uniform, on the other hand
Shorten the baking time of ladle, reducing energy consumption, reduction environmental pollution, or even can use low-calorie fuel.And burner conduct
Core component to ladle heating, baking quality, the energy efficient to improving ladle is most important.
This patent is " new based on Al2O3The burner of coating " is the ultimate principle according to preservation of energy, by gaseous-pressure energy
A part be converted into the kinetic force (providing sufficient oxygen for its burning) of suction air, and using newest Surface Engineering skill
Art, it is theoretical using Optimization of Mechanical Design with reference to ladle baking facility and the application practical working situation of metallurgical equipment, and by means of having
The first analogue simulation analysis of limit and creativeness are developed.
The unique texture and its operation principle of the product, it improves length, dynamics of flame combustion etc., and it can replace always
The various blower fans and its associated components of formula ladle baking facility and metallurgical equipment, realize energy-conservation, the purpose of reduces cost, while also making
Its baking design structure is compact, convenient to install and maintain etc..
The content of the invention
It is an object of the present invention to overcome the defect that existing burner is present, and a kind of new burner is provided, institute
The technical problem to be solved is to make its improve production efficiency, and improve product quality, energy saving is cost-effective, reduces environment dirty
Dye, life-span length and easy to maintenance.
The present invention also aims to, the defect for overcoming existing burner to exist, and a kind of new burner is provided
Critical piece Al2O3Coating Processes, technical problem to be solved is produced with high temperature resistant, resistance to oxidation, not heat conduction
Al2O3The burner of ceramic layer, improves the performance of burner.
The object of the invention to solve the technical problems employs the following technical solutions to realize.According to present invention proposition
A kind of new burner, including：Gas pipeline (A), the equal flow cartridge of primary air (B), primary air entrance (C), two
Secondary air adjustment cylinder (D) and auxiliary air entrance (E)；
Wherein described gas pipeline (A) is partly sheathed in the equal flow cartridge of primary air (B), and the equal flow cartridge of primary air
(B) partly it is sheathed in secondary air registers cylinder (D)；Primary air entrance (C) is located at the equal flow cartridge of primary air (B) top, and
Primary air entrance (C) is fixedly connected and is connected with primary air equal flow cartridge (B) upper end；Auxiliary air entrance (E) is arranged at
Secondary air registers cylinder (D) upper side, and auxiliary air entrance (E) is connected with secondary air registers cylinder (D).
The object of the invention to solve the technical problems can also be applied to the following technical measures to achieve further.
Aforesaid new burner, wherein the gas pipeline (A), the equal flow cartridge of primary air (B) are adjusted with auxiliary air
The axis of section cylinder (D) all coincides with same axis；The diameter (d1) of the gas pipeline (A) is less than the equal flow cartridge of primary air
(B) diameter (d2), and the diameter (d2) of the equal flow cartridge of primary air (B) is less than the diameter (d3) of secondary air registers cylinder (D).
Aforesaid new burner, wherein the gas pipeline (A) includes flange (11), the cylinder of order from top to bottom
(10) and reduced pipe (14), cylinder (10) upper end is connected with flange (11), and cylinder (10) lower end is fixedly connected reduced pipe (14), institute
State reduced pipe (14) internal positioned at the equal flow cartridge of primary air (B).
Aforesaid new burner, wherein the primary air entrance (C) includes Circular Plate (7), circular hole slab (8) and circle
Ring flat-plate (9)；The Circular Plate (7), circular hole slab (8) are identical with the maximum gauge of Circular Plate (9)；The internal ring of the Circular Plate (9)
Diameter is less than the annular diameters of Circular Plate (7), and is located on gas pipeline (A) outside, while Circular Plate (7) and Circular Plate (9)
Outer end be respectively fixedly connected with circular hole slab (8) upper and lower ends；Circular Plate (7) inner ring surface is fixedly connected the equal flow cartridge of primary air
(B) upper end, and Circular Plate (9) is fixedly connected on the lateral surface of gas pipeline (A).
Aforesaid new burner, wherein the secondary air registers cylinder (D) includes reduced pipe (1), cylinder (2), connects
Connect location-plate (3), cylinder (6), pipe (13) and Circular Plate (12)；Wherein pipe (13) is positioned at cylinder (6) upper end outside, and connects
Location-plate (3) is connect positioned at cylinder (2) middle and lower part outside；Circular Plate (12) is positioned at cylinder (6) and pipe (13) top, Circular Plate
(12) outer annular diameter is identical with the outer annular diameter of pipe (13), and the annular diameters of Circular Plate (12) are interior less than pipe (13)
Ring diameter；Circular Plate (12) is tightly connected with pipe (13), and Circular Plate (12) inner ring surface is fixedly connected on primary air and flows
The upper outside of cylinder (B).
Aforesaid new burner, wherein the deflection angle of the reduced pipe (1) is 25 °.
Aforesaid new burner, wherein the auxiliary air entrance (E) includes flange (4) and steel pipe (5), wherein steel
Pipe (5) one end connection secondary air registers cylinder (D), steel pipe (5) other end is fixedly connected flange (4).
Aforesaid new burner, wherein the gas pipeline (A), the equal flow cartridge of primary air (B), reduced pipe (1), circle
Cylinder (2), reduced pipe (14) are stainless steels.
Aforesaid new burner, wherein the N faces of the M faces of the reduced pipe (14) and the equal flow cartridge of primary air (B) it
Between distance (d4) be 2 times of diameter (d1) of the gas pipeline (A)；The centrage of the flange (4) is equal with primary air
The distance between the N faces of flow cartridge (B) (d5) is approximately 1.5 times of the diameter (d3) of the secondary air registers cylinder (D)；The flange
(11) lower surface and Circular Plate of the distance between bottom surface and the upper surface of Circular Plate (9) (L3) and the Circular Plate (7)
(12) equal, and the upper table of the upper surface with the Circular Plate (7) and Circular Plate (9) of the distance between upper surface (L1)
(L2) is also equal in the distance between face.
The object of the invention to solve the technical problems also employs the following technical solutions to realize.According to proposed by the present invention
A kind of critical piece Al of burner new as elucidated before2O3Coating Processes, the critical piece be the cylinder and
The reduced pipe, including following steps：The first step, to the critical piece to be coated oil removal treatment is carried out；Second step,
Deionized water rinsing is carried out to the critical piece surface to be coated；3rd step, technology is crossed in institute to be coated using hot dipping
State critical piece surface to aluminize, thickness is about 100~150 μm；4th step, solute ions choose the Na of 0.1mol/L2SiO3With go
Ionized water is configured to the electrolyte aqueous solution of differential arc oxidation；5th step, by above-mentioned 3rd step described main portion to be coated is prepared
Part is positioned in the electrolyte aqueous solution as anode；6th step, is electrolysed to above-mentioned electrolyte aqueous solution：Using the differential of the arc
Oxidation unit power supply is 65kW；Using constant current mode, electric current density 5A/dm2, frequency 400Hz, dutycycle 10, the electrolyte
The temperature control of aqueous solution is at 30 DEG C；7th step, controls preparation time for 150~180min, thickness is obtained after preparation for 200~
300 μm of the Al2O3Coating.
By above-mentioned technical proposal, the present invention at least has following advantages：
1st, superior performance
(1) fuel economy is high：Fuel burns completely, heat utilization ratio high, burning quality is good.
(2) flame quality is good：Combustion flame length, concentration class are high and strong.
(3) energy-conservation：Fuel uses few；Can work under the conditions of Blower-free or little blower fan.
(4) efficiency high is toasted：, efficiency high fast to the rate of heat addition of ladle.
(5) baking quality is high：Roasting bag temperature height, uniform etc..
2nd, the long-life
Under high temperature resistant, oxidation-resistant coating effect so that the novel burner has the long-life.
3rd, compact overall structure, outward appearance are beautiful.
In a word, burner of the invention can be greatly improved production efficiency compared with main product currently on the market, improve
Product quality, energy saving is cost-effective, reduce environmental pollution, in addition product have the long-life, it is easy to maintenance the features such as.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of description, and in order to allow the present invention above and other objects, features and advantages can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Description of the drawings
Fig. 1 is the floor map of burner structure of the present invention.
【Main element symbol description】
A：Gas pipeline
B：Equal flow cartridge C of primary air：Primary air entrance
D：Secondary air registers cylinder E：Auxiliary air entrance
1：Reduced pipe 2：Cylinder
3：Connected positioning plate 4：Flange
5：Steel pipe 6：Cylinder
7：Circular Plate 8：Circular hole slab
9：Circular Plate 10：Cylinder
11：Flange 12：Circular Plate
13：Pipe 14：Reduced pipe
15：Cylinder
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to according to a kind of its specific embodiment of new burner proposed by the present invention, structure, feature,
Its critical piece Al2O3Coating Processes and its effect, describe in detail as after.
First, the construction featuress of burner of the present invention, operation principle and technical key point
The purpose of the present invention is a kind of new and effective, high-quality, energy-saving and environmental protection roasting bag burner of design.The present invention takes
Technical scheme：First, the high-pressure gas (blast furnace gas, coal gas of converter, natural gas etc.) provided using manufacturer, can greatly
The hollow aspiration of gas enters burner, is the oxygen that fuel combustion is supplied to abundance so that the burner can be in Blower-free or little blower fan
Under conditions of realize burning.Second, Al2O3Ceramic functional coating：There should be the features such as high temperature resistant, resistance to oxidation and not heat conduction；And should
Coating also greatly improves the fineness of piece surface, reduces the resistance of gas flowing, makes the gas flow rate everywhere by pipeline
It is basically identical, accordingly improve length, concentration class and dynamics of flame etc..Thus, the burner can improve roasting bag efficiency, bake
Bag quality, realization economize on resources, reduces cost the advantages of；And this product also has compact conformation, long service life, attractive in appearance big
Square, easy to maintenance the features such as.
Fig. 1 is the floor map of burner structure of the present invention.
The operation principle flow process of burner of the present invention is as follows with reference to shown in Fig. 1：
1. the high-pressure gas (>=5kPa) that user provides are connected with flange 11, and cylinder 10, Jing reduced pipes are successively flowed through successively
Enter in cylinder 15 after 14 acceleration.
2. the high-voltage high-speed combustion gas after accelerating will take away the air in cylinder 15 when stainless steel tube 15 is flowed through so that
Parital vacuum is formed in cylinder 15, promotes it by the sky in the toroidal cavity being made up of Circular Plate 7, circular hole slab 8 and Circular Plate 9
Gas (outside air Jing circular hole slabs 8 enter the chamber) suction.
3. more than the 1. step and the 2. under step effect, combustion gas and air form air-gas and mix in the port of export of cylinder 15
Zoarium, this mixture sprays at a high speed Jing after the acceleration of reduced pipe 1, while the air for 4. walking suction with the mixes again, and maximal end point
Combustion burning Baking out equipment.
4. while spraying at a high speed Jing after 3. the walk and lighting burning baking, the air in stainless steel tube 2 is also taken away high
Speed flows out, and makes to form vacuum in cylinder 2, promotes the air in its Jing cylinder 6, steel pipe 5, the suction air of flange 4, and 3. walks with the
Blast furnace gas-the air mixture of outflow mixes again.
5. according to the difference of fuel (pressure and combustion heat value), little blower fan can be accessed in flange 4, it is ensured that fuel is completely and mistake
Oxygen burns, to realize energy-conservation, subtract dirty purpose.
The key technology main points of the new burner manufacture of the present invention：
1. the distance between N faces of the M faces of reduced pipe 14 and cylinder 15 for the diameter of cylinder 10 2 times or so (5kPa pressure,
Combustion value is 3500KJ/Nm3Blast furnace gas), make pressure difference suitably to adjust its distance, or the diameter of adjustment cylinder 15.
2. the distance between the M faces of reduced pipe 14 and Circular Plate 7 are the 2 of the diameter d1 (diameter of cylinder 10) of gas pipeline A
Times or so (5kPa pressure, combustion value be 3500KJ/Nm3Blast furnace gas), make pressure difference suitably to adjust its distance.
3. the circulation area of combustion gas is about the half of the equal flow cartridge B circulation area of primary air or so (5kPa pressure, blast furnace
Coal gas), pressure difference is suitably adjusted.
4. the end diameter of reduced pipe 1 is consistent with the diameter of cylinder 15, and large end face is concordant with the N faces of cylinder 15.
5. the streamlined structure of reduced pipe 1 and reduced pipe 14, can be to gas conflux acceleration.
6. reduced pipe 1, cylinder 2, cylinder 10, reduced pipe 14 and cylinder 15 carry out surface A l2O3Coating treatment is (concrete to make
Technique refers to following " Al2O3Coating treatment ").
2nd, Al2O3Coating treatment
One layer of high temperature resistant, resistance to is prepared using piece surface of the differential arc oxidization technique in burner key position and high-temperature region
Oxidation, athermanous Al2O3Ceramic layer.Specific processing technology is as follows：
1. treating coating component surface carries out oil removal treatment, and common abstergent oil removing is used during oil removing.
2. treating coating component surface carries out deionized water rinsing.
3. cross technology using hot dipping to aluminize in piece surface to be coated, thickness is about 100~150 μm.
4. solute ions choose the Na of 0.1mol/L2SiO3With the electrolyte that deionized water is configured to differential arc oxidation.
5. 3. technique prepared band coating part to be positioned in electrolyte aqueous solution as anode.
6. micro-arc oxidation device power supply is adopted for 65kW；Using constant current mode, electric current density 5A/dm2, frequency 400Hz, account for
Sky compares 10, and electrolyte temperature is controlled at 30 DEG C or so.
7. 150~180min of preparation time or so, thickness is about 200~300 μm.
In sum, burner of the invention can be greatly improved production efficiency compared with main product currently on the market,
Improve product quality, energy saving is cost-effective, reduces environmental pollution, and in addition product of the invention has long-life, maintenance side
Just the features such as.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not done to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when making a little change or modification using the technology contents of the disclosure above
For the Equivalent embodiments of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit of the foundation present invention
To any simple modification made for any of the above embodiments, equivalent variations and modification, still fall within the range of technical solution of the present invention.
Claims (8)
1. a kind of burner, including gas pipeline (A), the equal flow cartridge of primary air (B), primary air entrance (C), auxiliary air are adjusted
Section cylinder (D) and auxiliary air entrance (E)；
It is characterized in that：Described gas pipeline (A) is partly sheathed in the equal flow cartridge of primary air (B), and primary air flows
Cylinder (B) is partly sheathed in secondary air registers cylinder (D)；
Primary air entrance (C) is located at the equal flow cartridge of primary air (B) top, and primary air entrance (C) flows with primary air
Cylinder (B) upper end is fixedly connected and is connected；
Auxiliary air entrance (E) is arranged at secondary air registers cylinder (D) upper side, and auxiliary air entrance (E) and secondary sky
Gas adjustment barrel (D) is connected；
The gas pipeline (A), the equal flow cartridge of primary air (B) all coincide with same with the axis of secondary air registers cylinder (D)
Axis；And the diameter (d1) of the gas pipeline (A) is less than the diameter (d2) of the equal flow cartridge of primary air (B), and primary air is equal
Diameter (d3) of the diameter (d2) of flow cartridge (B) less than secondary air registers cylinder (D)；
The gas pipeline (A) includes the flange two (11) of order, cylinder three (10) and reduced pipe two (14) from top to bottom, once
Air intake (C) includes Circular Plate one (7), circular hole slab (8) and Circular Plate two (9)；Secondary air registers cylinder (D) includes reduced pipe
One (1), cylinder one (2), connected positioning plate (3), cylinder two (6), pipe (13) and Circular Plate three (12)；Auxiliary air entrance
(E) flange one (4) and steel pipe (5) are included；
The distance between the small end face of the reduced pipe two (14) and the exit end face of the equal flow cartridge of primary air (B) (d4) is described
2 times of the diameter (d1) of gas pipeline (A)；
The distance between the centrage of the flange one (4) and the exit end face of the equal flow cartridge of primary air (B) (d5) are described two
1.5 times of the diameter (d3) of secondary air adjustment cylinder (D)；
The diameter (d1) of the gas pipeline (A) for cylinder three (10) diameter, the diameter of the secondary air registers cylinder (D)
(d3) it is the diameter of cylinder one (2)；
The distance between the bottom surface of the flange two (11) and the upper surface of Circular Plate two (9) (L3) and the Circular Plate one (7)
The distance between lower surface and the upper surface of Circular Plate three (12) (L1) it is equal, and with the upper surface of the Circular Plate one (7)
It is also equal with the distance between the upper surface of Circular Plate two (9) (L2)；
The reduced pipe one (1), cylinder one (2), cylinder three (10), reduced pipe two (14) carry out surface A l2O3Coating treatment.
2. burner according to claim 1, it is characterised in that：The upper end of the cylinder three (10) is connected with flange two
(11), the lower end of cylinder three (10) is fixedly connected reduced pipe two (14), and the reduced pipe two (14) is positioned at the equal flow cartridge of primary air (B)
It is internal.
3. burner according to claim 1, it is characterised in that：The Circular Plate one (7), circular hole slab (8) and Circular Plate
Two (9) maximum gauge is identical；
The annular diameters of the Circular Plate two (9) are less than the annular diameters of Circular Plate one (7), and are located on gas pipeline (A) outward
Side, while the outer end of Circular Plate one (7) and Circular Plate two (9) is respectively fixedly connected with circular hole slab (8) upper and lower ends；
The inner ring surface of the Circular Plate one (7) is fixedly connected the upper end of the equal flow cartridge of primary air (B), and Circular Plate two (9) is fixed and connected
It is connected to the lateral surface of gas pipeline (A).
4. burner according to claim 1, it is characterised in that：The pipe (13) positioned at the upper end of cylinder two (6) outside,
And connected positioning plate (3) is positioned at the middle and lower part of cylinder one (2) outside；
Circular Plate three (12) is positioned at cylinder two (6) and pipe (13) top, outer annular diameter and the pipe (13) of Circular Plate three (12)
Outer annular diameter it is identical, and the annular diameters of Circular Plate three (12) less than pipe (13) annular diameters；
Circular Plate three (12) is tightly connected with pipe (13), and the inner ring surface of Circular Plate three (12) is fixedly connected on primary air and flows
The upper outside of cylinder (B).
5. burner according to claim 1, it is characterised in that：The deflection angle of the reduced pipe one (1) is 25 °.
6. burner according to claim 1, it is characterised in that：Described steel pipe (5) one end connects secondary air registers cylinder
(D), steel pipe (5) other end is fixedly connected flange one (4).
7. burner according to claim 1, it is characterised in that：The gas pipeline (A), the equal flow cartridge of primary air (B),
Reduced pipe one (1), cylinder one (2), reduced pipe two (14) are stainless steels.
8. burner according to claim 1, it is characterised in that：The reduced pipe one (1), cylinder one (2), cylinder three
(10), reduced pipe two (14) carries out surface A l2O3The method of coating treatment is：
The first step, to part to be coated oil removal treatment is carried out；
Second step, to parts surface to be coated deionized water rinsing is carried out；
3rd step, crosses technology and aluminizes in parts surface to be coated using hot dipping, and thickness is 100~150 μm；
4th step, solute ions choose the Na of 0.1mol/L2SiO3It is water-soluble with the electrolyte that deionized water is configured to differential arc oxidation
Liquid；
5th step, prepares above-mentioned 3rd step part to be coated and is positioned in the electrolyte aqueous solution as anode；
6th step, is electrolysed to above-mentioned electrolyte aqueous solution：Micro-arc oxidation device power supply is adopted for 65kW；Using constant current mould
Formula, electric current density 5A/dm2, frequency 400Hz, dutycycle 10, the temperature control of the electrolyte aqueous solution is at 30 DEG C；
7th step, it is 150~180min to control preparation time, and the Al that thickness is 200~300 μm is obtained after preparation2O3Apply
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510133770.8A CN104764008B (en) | 2015-03-25 | 2015-03-25 | Novel combustor and Al2O3 coating treating method of main part of combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510133770.8A CN104764008B (en) | 2015-03-25 | 2015-03-25 | Novel combustor and Al2O3 coating treating method of main part of combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104764008A CN104764008A (en) | 2015-07-08 |
| CN104764008B true CN104764008B (en) | 2017-05-17 |
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| CN201510133770.8A Expired - Fee Related CN104764008B (en) | 2015-03-25 | 2015-03-25 | Novel combustor and Al2O3 coating treating method of main part of combustor |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3498545A (en) * | 1966-11-09 | 1970-03-03 | Ronald Victor Short | Gas burners |
| CN101965483A (en) * | 2007-11-23 | 2011-02-02 | 西门子公司 | Burner element and burner having aluminum oxide coating and method for coating a burner element |
| CN102230625A (en) * | 2011-02-16 | 2011-11-02 | 王平 | Cascade ejector |
| CN102141247A (en) * | 2011-04-13 | 2011-08-03 | 中冶京诚工程技术有限公司 | Flame adjusting burner of soaking pit furnace |
| CN203147769U (en) * | 2013-04-02 | 2013-08-21 | 吴德福 | Burner for rotary kiln |
| CN204534575U (en) * | 2015-03-25 | 2015-08-05 | 洛阳理工学院 | A kind of novel burner |
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2015
- 2015-03-25 CN CN201510133770.8A patent/CN104764008B/en not_active Expired - Fee Related
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