CN202361375U - Combustor for combustion in multihole cone with quick swirling flow mixing device - Google Patents
Combustor for combustion in multihole cone with quick swirling flow mixing device Download PDFInfo
- Publication number
- CN202361375U CN202361375U CN2011204607157U CN201120460715U CN202361375U CN 202361375 U CN202361375 U CN 202361375U CN 2011204607157 U CN2011204607157 U CN 2011204607157U CN 201120460715 U CN201120460715 U CN 201120460715U CN 202361375 U CN202361375 U CN 202361375U
- Authority
- CN
- China
- Prior art keywords
- cone
- combustion
- flow
- air
- burner
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to a combustor for combustion in a multihole cone with a quick swirling flow mixing device, and aims to effectively solve the problems of complicated structure, demands of a large combustion space, non-uniform gas mixing, incomplete combustion, environment pollution and energy waste of the most furnace combustion devices. A swirling flow and backflow combustion chamber is an annular space between a clock-cover-shaped wall body and a circular multihole heat accumulation cone; a coal gas and air inlet pipe is arranged on the side surface of the clock-cover-shaped wall body and communicated with the swirling flow and backflow combustion chamber through a coal gas and air inlet nozzle; and a flow guiding baffle is arranged in the coal gas and air inlet nozzle, and an opening of the flow guiding baffle is opposite to a coal gas and air flow mixing annular channel. The problems of instable combustion of coal gas with a low heat value, low combustion strength and low combustion temperature are solved effectively; under the simple structure, gas and air flows are premixed quickly and preheated at high temperature and combusted at high strength in the multihole cone; and the thermal characteristics of the combustor have a great significance for simplification and improvement of the whole structure of an industrial furnace.
Description
Technical field
The utility model relates to the burner that burns in a kind of porous cone with quick rotational flow mixing device of blast funnace hot blast stove and other industrial kiln.
Background technology
Current, blast funnace hot blast stove and other industrial furnace consider to require acquisition high-performance and high benefit under the lower heat of combustion blast furnace gas from energy-saving and cost-reducing, and finally reach efficiently, the purpose of energy-saving and environmental protection, raising the output.For this reason, efficient and combustion process that strengthen is very necessary, this just relates to the quality of burner performance.Make a general survey of all gases burner of present use; All with coal gas mix in the combustion space with air, preheating, the combustion mode of catching fire be main, always this pattern exist mix inequality, incomplete combustion, the bags is big, burner structure is complicated, combustion-gas flow is organized improper (air-flow skewness), the combustion-gas flow characteristic is with load change problems such as (being poor controllability).On the contrary, if jump out the pattern of air-flow mixed combustion in the combustion chamber, utilize coal gas to mix in pipeline with air, combustion process is accomplished in preheating in porous body, to realize flameless combustion pattern truly.This just must cause the flue gas flow field samming current-sharing more that produces, and does not receive the influence of load change.Simultaneously, the structure of burner is greatly simplified because of the special construction that has removed complicated burner nozzle, and the combustion space of flaming combustion has been saved in flameless combustion, makes the cost of manufacture of hot-blast stove and other Industrial Stoves obviously descend.Such burner application can realize high-intensity flameless combustion process in corresponding hot-blast stove, and can further realize the heat transfer-heat-accumulating process of uniform high-efficiency through the structure of checker brick pressure regulation current-sharing and enhance heat transfer.
Summary of the invention
To above-mentioned situation; For overcoming the defective of prior art; The purpose of the utility model just provides the burner that burns in a kind of porous cone with quick rotational flow mixing device; Can effectively solve numerous stoves (especially the hot-blast stove of high-temperature blast is provided and is main kiln with the heat utilization) burner complex structure, or need bigger combustion space to blast furnace, and gas mix inhomogeneous, burning is insufficient, contaminated environment, the problem that wastes energy etc.
The technical scheme that the utility model solves is; Comprise the air-flow mixing circuit of bell shape eddy flow and reverse flow type combustor, circular porous regenerator cone, gas inlet pipe, air intake duct, inlet nozzle and upper opening, eddy flow and reverse flow type combustor are the annular space that constitutes between bell shape body of wall and the circular porous regenerator cone; Circular porous regenerator cone is to pile up the upwards taper of gradually-reducing shape that is progressively that forms by the grid fragment of brick of porous; On the side of bell shape body of wall; On same horizontal plane, be disposed radially gas inlet pipe and air intake duct; Gas inlet pipe and air intake duct are connected with the reverse flow type combustor with eddy flow through the inlet nozzle that has the horizontal tilt angle, and inlet nozzle changes the inlet air flow direction and improves its flow velocity, thereby in eddy flow and reverse flow type combustor, produces high-speed rotational; The section of inlet nozzle is a kind of of circle, arch, rectangle, and flow apron is set in it, and opening is down trapezoidal air-flow mixing circuit facing to the cross section, makes air-flow in circuit, upwards flow into the eddy flow and the reverse flow type combustor on top while mixing.
Use this burner can realize that coal gas and air directly get into eddy flow and reverse flow type combustor; Accomplish the high temperature preheating of mist and the high-intensity combustion of concentrated and fast and stable, thereby efficiently solve key issues such as low-heat value gas combustion instability, combustion intensity is weak, ignition temperature is low; Coal gas and the long flame combustion system that takies the burning mass space that burns while mixing between air are changed into swirl-flow premixed air-flow and accomplished high temperature and high-intensity combustion process by means of the big contact surface of porous regenerator cone.Owing to making flue gas, the pressure regulation current-sharing effect of porous regenerator cone gets into the heat utilization space of stove with the air-flow that is evenly distributed.Accomplish in view of combustion process concentrates in the burner, so just greatly saved the combustion space of stove, effectively lower its cost of manufacture.Obviously; The combustion chamber of adopting the combustion system of nonflame in this porous body or short-flame not only to improve the completeness of combustion process but also saved stove, and can also realize self-preheating to a certain degree (the porous regenerator cone high-temperature heat accumulation that strong or periodic combustion of accumulation of heat of porous regenerator cone and exchange capacity and air-supply cause) and saved coal gas and preheating of air device.Therefore; This burner is for other burners that adopt the gas combustion type; Not only from realized under simple more structure that air-flow is swirl-flow premixed fast, high temperature preheating and high-intensity combustion in the porous body, and to the integrally-built simplification of industrial furnace with improve its thermal characteristics and all played crucial effects.
Description of drawings
Fig. 1 is the sectional front view of the utility model.
Fig. 2 is that the A-A of the utility model Fig. 1 is to sectional view.
The specific embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the utility model.
Shown in Fig. 1-2; The utility model comprises the air-flow mixing circuit 5 of bell shape eddy flow and reverse flow type combustor 1, circular porous regenerator cone 2, gas inlet pipe 3, air intake duct 4, inlet nozzle 6 and upper opening, and eddy flow and reverse flow type combustor 1 are the annular space that constitutes between bell shape body of wall 7 and the circular porous regenerator cone 2; Circular porous regenerator cone 2 is to pile up the upwards taper of gradually-reducing shape that is progressively that forms by the grid fragment of brick of porous; On the side of bell shape body of wall 7; On same horizontal plane, be disposed radially gas inlet pipe 3 and air intake duct 4; Gas inlet pipe 3 is connected with reverse flow type combustor 1 with eddy flow through the inlet nozzle 6 that has the horizontal tilt angle with air intake duct 4, and inlet nozzle changes the inlet air flow direction and improves its flow velocity, thereby in eddy flow and reverse flow type combustor 1, produces high-speed rotational; The section of inlet nozzle 6 is a kind of of circle, arch, rectangle, and flow apron 6a is set in it, and opening is down trapezoidal air-flow mixing circuit 5 facing to the cross section, makes air-flow in circuit, upwards flow into the eddy flow and the reverse flow type combustor 1 on top while mixing.
Described bell shape body of wall 7 is in metal shell, to build fire brick layer by laying bricks or stones to constitute, and fire brick layer is the internal layer of being built by laying bricks or stones by heavy refractory brick, the skin that light fire brick is built by laying bricks or stones, and outer field outside is the sticking and sprayed coating composition of temperature resistant fiber; Described circular porous regenerator cone 2 is to be piled up by checker brick to form; Checker brick are hexagonal cylindrical pieces that the high temperature resistant anti-refractory material that sticks is fired into; Offer through hole by triangular arranged on the column piece end face, the aperture is 12～30mm, and porosity is 30%～50%; Through hole direction and up/down perforation consistent with the burner axial direction makes air-flow keep circulation up and down; Described gas inlet pipe 3 is in the metal shell of circular cross-section with air intake duct 4 and builds the circular channel that forms by laying bricks or stones by refractory material; Respectively be 1～3 (respectively providing one among Fig. 2), quantity depends on the thermic load of burner and to the requirement of air-flow mixing quality; Described flow apron 6a builds the prismatic cylinder that forms by laying bricks or stones by refractory material; Have a plurality of in the inlet nozzle 6 at the tilt gas channel of 0 °～60 ° of angles of burner radial direction; Play a part the air-flow guiding and improve flow velocity; The opening of inlet nozzle 6 is facing to the air-flow mixing circuit 5 of upper opening, and inlet nozzle aligns with the bottom of air-flow mixing circuit; The height of described air-flow mixing circuit 5 equates with the height of inlet nozzle 6; Directly do not wash away circular porous regenerator cone to guarantee the high velocity air that inlet nozzle 6 comes out; Force its in air-flow mixing circuit 5 high speeds rotations, mix each other rapidly and upwards flow simultaneously, constantly get into the eddy flow and the reverse flow type combustor 1 on top; On the side ringwall of described bell shape body of wall 7, or bell shape body of wall top is provided with the hot-blast outlet pipe 8 of hot-blast stove or the smoke outlet tube of kiln, the mouth of pipe the needs that actual stove is depended in quantity and position are set.
During practical implementation; Coal gas and air get into from gas inlet pipe 3 and air intake duct 4 respectively; Behind inlet nozzle 6, form the high velocity air of inclined impact and get into air-flow mixing circuit 5; Two kinds of air-flows mix fast each other in make quick eddy flow flow process along it; And upwards get into eddy flow and reverse flow type combustor 1 from upper opening; Under turn back the interaction of air-flow at updraft and top; Under the effect of the circumferential eddy flow that in air-flow mixing circuit 5, forms; Whole air velocity distribution just forms a rotation collar vortex structure, becomes the air-flow intense mixing; Rapidly pre-warming; Catch fire rapidly and the environment that burns; Air-flow gets into circular porous regenerator cone 2 thereupon, and goes up under a large amount of contact-making surface high temperature preheating that it provides by high-temperature heat accumulation and accomplish combustion process rapidly and produce higher ignition temperature, gets into the heat utilization space afterwards.
When burner is cycling service; Like the burner in hot-blast stove; The porous body in the Flameless combuster because air-supply stage hot blast can be flowed through makes its temperature progressively reach hot blast temperature, and saves the part heat by the quality of porous body itself; This part heat just becomes the heat of initial stage preheating premixed flow when changing combustion phases over to; Thereby make combustion process have the characteristic of self-preheating high-intensity combustion, this is with regard to the ignition temperature that effectively improved the initiation combustion process and combustion process is carried out under higher temperature, helps in corresponding burning time the checker brick heat storage grilled thoroughly (savings more heat).This also continues to carry the effect of high wind-warm syndrome with regard to having guaranteed the air-supply process to reach stable.
The utility model is that the coal gas of a kind of blast funnace hot blast stove and other industrial kiln mixes the burner of accomplishing the premixed combustion mode of combustion process in spray, reflux steady flame, the porous body with the quick eddy flow of air; The premixed circuit that its coal gas and air get into burner with certain rotary-cut angle carries out that eddy flow mixes and upwards sprays; In the limited space of burner, produce circumferentially and axially circumnutation; Coal gas and air are accomplished mixed process therein basically and are refluxed smoke pre-heating and initial burning burns, and get into fast in the porous regenerator body afterwards and accomplish combustion process.Because circular porous regenerator cone is the honeycomb tubular structure; There is bigger contact-making surface (its unit volume exchange area is between 100～150 square metres) to make combustion process in burner, to accomplish fast and fully, and the effect of all pressing by means of the porous body mixed flow simultaneously and form the flue gas flow field of the samming current-sharing of flowing out burner.Obviously, in the confined space, utilize the porous material characteristic to realize rapidly pre-warming and burning, can effectively reduce excess air coefficient, improve ignition temperature with combustion intensity and then greatly simplify burner structure and alleviate burner weight.Because partly-premixed combustion process is carried out in more adiabatic porous body, its temperature is more near theoretical temperature combustion (part can also surpass theoretical temperature combustion), and this just can realize high ignition temperature under low calorific value of gas.
For the hot-blast stove that adopts this burner; Owing to removed the interior space that space combustor checker brick heat storage almost has been full of hot-blast stove; Under the coal gas of identical calorific value; Its ignition temperature can improve (reducing heat radiation and self-preheating effect); And the partial combustion process also can be carried out in heat storage, and this has also increased the high-temperature heat accumulation of heat storage, thereby helps under the prerequisite of low-heat value gas combustion temperature not high (about about 1400 ℃), realizing stable high hot blast temperature (1350 ℃).Because ignition temperature can be controlled at 1400 ℃ of a large amount of generations that just can not cause nitrogen oxide up and down, helps the intercrystalline corrosion that reduces environmental pollution and prevent furnace shell.This also adopts the free-revving engine of the burner that burns in the porous cone of band rotational flow mixing device just in hot blast two stoves.
In a word; The utility model adopts compact and unique chamber structure; Use eddy flow and mix the high strength smooth combustion technology that goes up spray, backflow preheat; Realize to get into the rapid mixing of combustion chamber air-flow, catch fire and burning rapidly, and get into self-preheating and the completing combustion that the porous regenerator cone is accomplished partly-premixed air-flow immediately, and form at last current-sharing, samming, with at a high speed flue gas stream.This burner overcome air-flow that the conventional gas burner exists mix uneven, burn not Wan, entirely, the key issue in the combustion process such as low, the combustion-gas flow skewness of flame instability, combustion intensity, air flow structure be uncontrollable.Use this burner can guarantee effectively that industrial furnace realizes efficient, high temperature, all speed, high-heat strength and operations of safety and stablization ground, realize fuel saving then, practice thrift investment, reduce the good economic benefit and the social benefit of EGT and discharge capacity, minimizing environmental pollution.
Claims (7)
1. the burner that burns in the porous cone with quick rotational flow mixing device; It is characterized in that; The air-flow mixing circuit (5) that comprises bell shape eddy flow and reverse flow type combustor (1), circular porous regenerator cone (2), gas inlet pipe (3), air intake duct (4), inlet nozzle (6) and upper opening, eddy flow and reverse flow type combustor (1) are the annular space that constitutes between bell shape body of wall (7) and the circular porous regenerator cone (2); Circular porous regenerator cone (2) is to pile up the upwards taper of gradually-reducing shape that is progressively that forms by the grid fragment of brick of porous; On the side of bell shape body of wall (7); On same horizontal plane, be disposed radially gas inlet pipe (3) and air intake duct (4); Gas inlet pipe (3) and air intake duct (4) are connected with reverse flow type combustor (1) with eddy flow through the inlet nozzle (6) that has the horizontal tilt angle; The section of inlet nozzle (6) is a kind of of circle, arch, rectangle, and flow apron (6a) is set in it, and opening is down trapezoidal air-flow mixing circuit (5) facing to the cross section.
2. the burner that burns in the porous cone of the quick rotational flow mixing device of band according to claim 1; It is characterized in that; Described bell shape body of wall (7) is in metal shell, to build fire brick layer by laying bricks or stones to constitute; Fire brick layer is the internal layer of being built by laying bricks or stones by heavy refractory brick, the skin that light fire brick is built by laying bricks or stones, and outer field outside is the sticking and sprayed coating composition of temperature resistant fiber.
3. the burner that burns in the porous cone of the quick rotational flow mixing device of band according to claim 1; It is characterized in that described circular porous regenerator cone (2) is to be piled up by checker brick to form, checker brick are hexagonal cylindrical pieces that the high temperature resistant anti-refractory material that sticks is fired into; Offer through hole by triangular arranged on the column piece end face; The aperture is 12～30mm, and porosity is 30%～50%, through hole direction and up/down perforation consistent with the burner axial direction.
4. the burner that burns in the porous cone of the quick rotational flow mixing device of band according to claim 1; It is characterized in that; Described gas inlet pipe (3) and air intake duct (4) are in the metal shell of circular cross-section builds the circular channel that forms by laying bricks or stones by refractory material, respectively is 1～3.
5. the burner that burns in the porous cone of the quick rotational flow mixing device of band according to claim 1; It is characterized in that; Described flow apron (6a) is to build the prismatic cylinder that forms by laying bricks or stones by refractory material; Have in the inlet nozzle (6) that a plurality of the opening of inlet nozzle (6) is facing to the air-flow mixing circuit (5) of upper opening at the tilt gas channel of 0 °～60 ° of angles of burner radial direction, inlet nozzle aligns with the bottom of air-flow mixing circuit.
6. the burner that burns in the porous cone of the quick rotational flow mixing device of band according to claim 1 is characterized in that, the height of described air-flow mixing circuit (5) equates with the height of inlet nozzle (6).
7. the burner that burns in the porous cone of the quick rotational flow mixing device of band according to claim 1; It is characterized in that; On the side ringwall of described bell shape body of wall (7), or bell shape body of wall top is provided with the hot-blast outlet pipe (8) of hot-blast stove or the smoke outlet tube of kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204607157U CN202361375U (en) | 2011-11-19 | 2011-11-19 | Combustor for combustion in multihole cone with quick swirling flow mixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204607157U CN202361375U (en) | 2011-11-19 | 2011-11-19 | Combustor for combustion in multihole cone with quick swirling flow mixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202361375U true CN202361375U (en) | 2012-08-01 |
Family
ID=46572559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204607157U Expired - Fee Related CN202361375U (en) | 2011-11-19 | 2011-11-19 | Combustor for combustion in multihole cone with quick swirling flow mixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202361375U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410535A (en) * | 2011-11-19 | 2012-04-11 | 陈维汉 | Burner with quick swirl mixing device for burning in porous cone |
| CN102974572A (en) * | 2012-12-06 | 2013-03-20 | 北京埃夫信环保科技有限公司 | Device for enhancing circulation of thermal air current in burning furnace |
| CN103014211A (en) * | 2013-01-17 | 2013-04-03 | 陈维汉 | Combustion device in orthogonally jetting and mixing accumulator of flat nozzle |
| CN103114166A (en) * | 2013-03-12 | 2013-05-22 | 中冶赛迪工程技术股份有限公司 | Top combustion stove regenerative chamber arrangement structure capable of uniformly distributing flue gas |
| CN106765349A (en) * | 2016-12-13 | 2017-05-31 | 张俊 | A kind of combustion system of calm type alcohol-based fuel cooker |
-
2011
- 2011-11-19 CN CN2011204607157U patent/CN202361375U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410535A (en) * | 2011-11-19 | 2012-04-11 | 陈维汉 | Burner with quick swirl mixing device for burning in porous cone |
| CN102974572A (en) * | 2012-12-06 | 2013-03-20 | 北京埃夫信环保科技有限公司 | Device for enhancing circulation of thermal air current in burning furnace |
| CN102974572B (en) * | 2012-12-06 | 2016-01-20 | 北京埃夫信环保科技有限公司 | Promote that thermal current is at the device of incinerator inner loop |
| CN103014211A (en) * | 2013-01-17 | 2013-04-03 | 陈维汉 | Combustion device in orthogonally jetting and mixing accumulator of flat nozzle |
| CN103114166A (en) * | 2013-03-12 | 2013-05-22 | 中冶赛迪工程技术股份有限公司 | Top combustion stove regenerative chamber arrangement structure capable of uniformly distributing flue gas |
| CN103114166B (en) * | 2013-03-12 | 2014-12-24 | 中冶赛迪工程技术股份有限公司 | Top combustion stove regenerative chamber arrangement structure capable of uniformly distributing flue gas |
| CN106765349A (en) * | 2016-12-13 | 2017-05-31 | 张俊 | A kind of combustion system of calm type alcohol-based fuel cooker |
| CN106765349B (en) * | 2016-12-13 | 2019-01-29 | 张俊 | A kind of combustion system of calm type alcohol-based fuel cooker |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106196056B (en) | The burner of smoke backflow indole energy low with the temperature control of Staged Premixed Combustion | |
| CN202361375U (en) | Combustor for combustion in multihole cone with quick swirling flow mixing device | |
| CN101906496B (en) | High-blast-temperature hot-blast stove burnt in convection swirling heat storage medium | |
| CN102829471A (en) | Flameless combustion device for pre-mixing and up-injecting gas and air in rotational flow manner in annular channel | |
| CN101608793B (en) | Air and gas double heat accumulating type burner | |
| CN202415585U (en) | Hot-blast stove for spraying mixed coal gas and air in loop from uniformly-distributed spray nozzles to form reflow for combusting | |
| CN101382286B (en) | Air flow circle alternating and equalization injection combustor for stabilizing flame by pre-mixing | |
| CN102494343B (en) | Combustion device for rotational flow mixed combustion by spraying air above uniformly distributed gas jets in loop | |
| CN104266188A (en) | Gas oxygen-enriched supporting premixed swirl-flow combustion device | |
| CN202415584U (en) | Hot-blast stove for mixing gas with air and spraying from evenly distributed nozzles to form reverse-flow preheating combustion | |
| CN201770720U (en) | Hedging cyclone heat storage medium central-combustion high blast temperature hot blast stove | |
| CN203569130U (en) | Cyclone inner mixing rectifying upper spraying backflow heat accumulator combustion hot blast stove | |
| CN203215674U (en) | Combustor with built-in hot air pipe and combustion in nozzle orthogonal jet mixed heat accumulator | |
| CN202415583U (en) | Hot-blast stove with upwards spraying air and rotational-flow mixed combusting apparatus and coal gas nozzles uniformly distributed in ring channel | |
| CN102051425B (en) | High-wind-temperature hot blast heater with automatic air preheater | |
| CN102766713A (en) | Air heating furnace with nozzles in pre-burning chamber for reflowing preheating burning by opposed jetting and mixing | |
| CN103740880B (en) | High-velocity burner for self-preheating of rotational flow and back flow in premixed airflow heat accumulator | |
| CN203517788U (en) | Porous body burning combustor of remixing coal gas whirl flow with premix gas | |
| CN102410535A (en) | Burner with quick swirl mixing device for burning in porous cone | |
| CN103484588B (en) | Top combustion type hot air furnace arranging annular flameless combustion device below arch roof of combustion chamber | |
| CN202182470U (en) | Gas and air jet flow injecting hybrid porous body steady flame hedging flow-equalizing combustor | |
| CN100578085C (en) | Multiple fire hole flame-free ceramic burner | |
| CN106766901B (en) | A kind of aluminium melting furnace using smoke backflow low-oxygen high-temperature combustion | |
| CN202519284U (en) | Air heating furnace with nozzles hedging, spraying, burning, refluxing and preheating stable flame uniformly distributed in prechamber | |
| CN202519285U (en) | Hot-blast stove with sleeve burner and with conical regenerator for rectifying and supporting combustion in combustion chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHENGZHOU YUXING REFRACTORY MATERIAL CO., LTD. Free format text: FORMER OWNER: CHEN WEIHAN Effective date: 20140618 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 450003 ZHENGZHOU, HENAN PROVINCE TO: 452374 ZHENGZHOU, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140618 Address after: 452374 Yue Village, Yue Village, Xinmi, Henan Patentee after: Zhengzhou Yuxing Refractory Material Co., Ltd. Address before: 450003 room 1108, Zheng Hua building, No. 56, Huayuan Road, Jinshui District, Henan, Zhengzhou Patentee before: Chen Weihan |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |