CN201276589Y - Side-blown converter spray gun for non-ferrous metal - Google Patents
Side-blown converter spray gun for non-ferrous metal Download PDFInfo
- Publication number
- CN201276589Y CN201276589Y CNU2008201232190U CN200820123219U CN201276589Y CN 201276589 Y CN201276589 Y CN 201276589Y CN U2008201232190 U CNU2008201232190 U CN U2008201232190U CN 200820123219 U CN200820123219 U CN 200820123219U CN 201276589 Y CN201276589 Y CN 201276589Y
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- combustion
- supporting gas
- ferrous metal
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Abstract
The utility model provides a novel nonferrous metal melting side-blown converter blow gun, comprising a blow gun body with a bushing structure and a blow gun head arranged at the front end of the blow gun body; the central pipeline of the bushing structure is provided with a connecting port which is connected with a fuel delivery device, and the interlayer ring-shaped channel of the bushing structure is provided with a connecting port which is connected with combustion-supporting gas; the blow gun head is provided with a fuel spout which is adapted to the central pipeline and a combustion-supporting gas spout which is adapted to the interlayer ring-shaped channel, and the combustion-supporting gas spout is provided with a through hole spout array.
Description
Technical field
The utility model is a kind of non-ferrous metal smelting furnace spray gun, particularly a kind of spray gun of side-blown converter for smelting non-ferrous metal.
Background technology
Along with improving constantly of the requirement of the progress of non-ferrous metals industry smelting technique and ecological, environmental protection and energy-conservation aspect, the direct method for smelting reduction of Ni of non-ferrous metal in recent years, replace original reduction smelting method and become the main flow of smelting non-ferrous metal method, because the melting method flow process is short, resistance to air loss is good, environmental protection is good, reduced investment, so molten bath winding-up smelting process has occupied main status gradually in the direct melting method of non-ferrous metal.In the process of non-ferrous metal metallurgy, for raw material in the stove is stirred, accelerate the speed of redox reaction, improve the efficient of melting, extensively adopt the oxygen of in stove, jetting, coal injection in stove also simultaneously is to provide reaction required thermal source and reductive agent.On the basis of original top blast and BOTTOM OXYGEN gas method, the method of oxygen and coal dust of blowing side in recent years is because to the stirring action fierceness of slag blanket, the tiny molten drop that reaction forms can be grown up rapidly after collision, separates the back with slag and sinks to entering furnace bottom, can not establish metal clarification disengaging zone, smelting ability height, facility compact, floor space is few, compares with other smelting non-ferrous metal equipment, investment greatly reduces, and therefore is more and more widely used.But oxygen lance and pulverized coal gun that traditional side-blown technology is used are provided with respectively, so the coal dust firing effect is undesirable, to the stirring action of molten slag layer also a little less than, more can't control and adjust the effect that stirs molten slag layer and burning, heating.
The utility model content
In order to solve the unfavorable problem of present spray gun of side-blown converter for smelting non-ferrous metal effect, the utility model proposes a kind of novel spray gun of side-blown converter for smelting non-ferrous metal.
The scheme that solves is: spray gun of side-blown converter for smelting non-ferrous metal, comprise the gun body of sleeve structure and the lance head of gun body front end, the central duct of sleeve structure has the connecting interface that connects fuel delivery means, the interlayer circular channel of sleeve structure has the connecting interface that connects combustion-supporting gas, lance head has the fuel nozzle ports that adapts to central duct and adapts to the combustion-supporting gas spout of interlayer circular channel, and the combustion-supporting gas spout has through hole spout array.
The axis of combustion-supporting gas spout is the radial direction of the distribution circle at center at the axis with fuel nozzle ports, with the axis of fuel nozzle ports can be parallel, also can be not parallel.
The axis of combustion-supporting gas spout is the tangential direction of the distribution circle at center at the axis with fuel nozzle ports, with the axis of fuel nozzle ports can be parallel, also can be not parallel.
The section form of combustion-supporting gas spout is a rectangle.
The section form of combustion-supporting gas spout is circular.
The combustion-supporting gas spout is the Lavalle spout.
The inside of gun body and lance head is provided with cooling-water duct.
The part outer surface that gun body and lance head are positioned at inside furnace is provided with refractory masses.
Adopt spray gun of side-blown converter for smelting non-ferrous metal of the present utility model, the technique effect that can obtain is: in the periphery of fuel nozzle ports, with the fuel nozzle ports center circumferential a plurality of poroid combustion-supporting gas spouts that distribute, can guarantee that fuel has better combustion efficacy, can play the effect of stirring better in fuel combustion zone, accelerate the speed of the redox reaction in the smelting furnace, accumulate big non-ferrous metal drop after impelling the collision of non-ferrous metal drop, sink to entering furnace bottom, and can thoroughly destroy in the smelting furnace condition of generation detonation behind the coal dust and oxygen mix, further guarantee the safety of smelting furnace when winding-up combustion-supporting gas and fuel, the strength and stiffness of lance head structure are strengthened, increase the thermal conductivity at lance head position, reduce the damage of furnace high-temperature to lance head, improve the result of use of spray gun, prolong the life-span of gun body and lance head, because fuel nozzle ports and combustion-supporting gas spout all are arranged on the lance head of same spray gun, with Fuel lance be set respectively compare with the combustion-supporting gas spray gun, saved the installation site, make side-blown converter for smelting non-ferrous metal that more spray gun can be set, play effect combustion-supporting and that stir better, and make the small-sized side-blown converter for smelting non-ferrous metal that many spray guns should not be installed originally, many spray guns of the present utility model also can be set, improve the efficient and the quality of melting.
The axis of combustion-supporting gas spout is the radial direction of the distribution circle at center at the axis with fuel nozzle ports, with the axis of fuel nozzle ports can be parallel, also can be not parallel, compare with the state that the axis of combustion-supporting gas spout is parallel with the axis of fuel nozzle ports, can change the mixing effect of combustion-supporting gas, and can be the angle of the axis of the radial direction of distribution circle at center and fuel nozzle ports at axis by the axis of adjusting the combustion-supporting gas spout with fuel nozzle ports, change the distance of fuel combustion zone, adapt to the requirement of different material and different melting technologies apart from lance head.
The axis of combustion-supporting gas spout is the tangential direction of the distribution circle at center at the axis with fuel nozzle ports, with the axis of fuel nozzle ports can be parallel, also can be not parallel, can form rotation or have the combustion air current of turbulent flow, the axis that changes the combustion-supporting gas spout is the angle of the axis of the tangential direction of distribution circle at center and fuel nozzle ports at the axis with fuel nozzle ports, can adjust the speed of combustion air current rotation, produce different mixing effects, adapt to the requirement of different material and different melting technologies.
The section form of combustion-supporting gas spout is a rectangle, can use the minimum method processing combustion-supporting gas spout of most convenient, cost.
The section form of combustion-supporting gas spout is circular, can guarantee that the combustion-supporting gas spout has maximum strength and stiffness, and make the resistance of combustion air current be reduced to minimum level, produces best stirring and combustion-supporting effect.
The combustion-supporting gas spout is the Lavalle spout, can make the combustion air current of combustion-supporting gas spout ejection have maximum speed under the certain situation of combustion-supporting gas pressure, produces maximum mixing effect.
The inside of gun body and lance head is provided with cooling-water duct, can reduce the temperature of gun body and lance head, and protection gun body and lance head are not damaged by the high heat burnout of smelting furnace and molten slag layer.
Gun body and lance head are positioned at the part of inside furnace; outer surface is provided with refractory masses; the surface that can protect the gun body that directly contacts in inside furnace and molten slag layer and lance head is not by scorification and at high temperature avoid oxidation damage, the work-ing life of obviously improving gun body and lance head.
On the non-ferrous metal smelting furnace that adopts side-blown technology, use spray gun of side-blown converter for smelting non-ferrous metal of the present utility model, can significantly improve the smelting efficiency of non-ferrous metal smelting furnace, reduce the energy and oxygen depletion, and improve the melting quality.
Description of drawings
Accompanying drawing 1 is the sectional view of the utility model spray gun of side-blown converter for smelting non-ferrous metal.
Accompanying drawing 2 is end view drawings of the combustion-supporting gas spout of rectangular cross-section shape.
Accompanying drawing 3 is end view drawings of the combustion-supporting gas spout of circular cross sectional shape.
Reference numeral lists as follows:
The 1-gun body, 2-lance head, 3-refractory masses, 11-fuel channel, 12-combustion-supporting gas passage, 13-cooling-water duct, 14-fuel delivery interface, 15-combustion-supporting gas interfacing conveyor, the 16-entrance of cooling water, 17-cooling water outlet, 21-fuel nozzle ports, 22-combustion-supporting gas spout.
Embodiment
Spray gun of side-blown converter for smelting non-ferrous metal of the present utility model, comprise the gun body 1 of sleeve structure and the lance head 2 of gun body front end, the center of sleeve structure is provided with fuel channel 11, the periphery of fuel channel 11 is provided with the combustion-supporting gas passage 12 of interlayer circular channel, and the periphery of combustion-supporting gas passage 12 is provided with the cooling-water duct 13 of interlayer circular channel.The center of lance head 2 is provided with fuel nozzle ports 21, fuel nozzle ports 21 is adaptive with the front end of fuel channel 11, the periphery of fuel nozzle ports 21 is provided with the combustion-supporting gas spout 22 with the adaptive through hole spout array of the combustion-supporting gas passage 12 of interlayer circular channel, it is several to tens that the quantity of combustion-supporting gas spout 22 is generally, actual needs according to melting, can equidistantly be provided with, also can equidistantly not be provided with.The rear end of fuel channel 11 is provided with the fuel delivery interface 14 suitable with the pneumatic conveyer of fuel, the rear end of the combustion-supporting gas passage 12 of interlayer circular channel is provided with the combustion-supporting gas interfacing conveyor 15 suitable with the combustion-supporting gas e Foerderanlage, the rear end of the cooling-water duct 13 of interlayer circular channel be provided with the suitable entrance of cooling water 16 of water coolant e Foerderanlage and with the suitable cooling water outlet 17 of water coolant discharger.
The axis of combustion-supporting gas spout 22 is the radial direction of the distribution circle at center at the axis with fuel nozzle ports 21, requirement according to different material and different melting technologies, multiple set-up mode is arranged, can be parallel with the axis of fuel nozzle ports 21, also can with the axis of fuel nozzle ports 21 can be parallel, also can be not parallel, with the uneven situation of the axis of fuel nozzle ports 21 under, can adopt from the rear end of lance head 2 to the preceding extreme direction of lance head 2, the axis of combustion-supporting gas spout 22 is away from the mode of dispersing of the axis of fuel nozzle ports 21, also can adopt from the rear end of lance head to the preceding extreme direction of lance head, the axis of combustion-supporting gas spout 22 is near the convergent mode of the axis of fuel nozzle ports 21, the numerical value of the angle of divergence and convergent angle according to the actual state decision of melting technology and melting, is selected to the scope of 30 degree at 0 degree usually.
The axis of combustion-supporting gas spout 22 is the tangential direction of the distribution circle at center at the axis with fuel nozzle ports 21, requirement according to different material and different melting technologies, multiple set-up mode is arranged, can be parallel with the axis of fuel nozzle ports 21, also can with the axis of fuel nozzle ports 21 can be parallel, also can be not parallel, with the uneven situation of the axis of fuel nozzle ports 21 under, can adopt from the rear end of lance head 2 to the preceding extreme direction of lance head 2, the axis of combustion-supporting gas spout 22 is with respect to the mode of the axis spiral setting of fuel nozzle ports 21, actual needs according to melting, the axis of each combustion-supporting gas spout 22 can adopt the identical hand of spiral and spiral angle, also can adopt the different hand of spiral and different spiral angles, the numerical value of spiral angle, according to the actual state decision of melting technology and melting, select to the scope of 60 degree at 0 degree usually.
The section form of combustion-supporting gas spout 22, be recommended as rectangle or circle, the tooling cost of rectangular cross-section is minimum, the gas velocity loss of circular cross section is minimum, for reducing the gas velocity loss of rectangular cross-section combustion-supporting gas spout, the length and width of rectangular cross-section is not more than 1.67 than generally, and if desired, the section form of combustion-supporting gas spout 22 also can adopt shapes such as ellipse, Polygons.
When combustion-supporting gas spout 22 adopted the Lavalle spout, the optimum value of the angle of divergence of Lavalle spout divergent section was that 0.5 degree is to 5 degree.
The inside of the layer structure of gun body 1 and lance head 2 is provided with cooling-water duct 13, and for guaranteeing to be full of water coolant in the cooling-water duct 13, entrance of cooling water 16 is arranged on the bottom of gun body 1, and cooling water outlet 17 is arranged on the top of gun body 1.
For guaranteeing thermotolerance and wear resistance, fuel channel 11 and fuel nozzle ports 21 are used the oxida-tion-resistant steel manufacturing of forging usually, cooling-water duct 13 uses the electrolytic copper manufacturing of forging usually, and the rest part of gun body 1 and lance head 2 uses the electrolytic copper or the oxida-tion-resistant steel manufacturing of forging usually.
Spray gun of side-blown converter for smelting non-ferrous metal of the present utility model; on the basis of embodiment; the embodiment that multiple different conversion can be arranged; the periphery of the fuel channel at every sleeve structure spray gun center; be provided with the combustion-supporting gas passage of interlayer circular channel; lance head has the fuel nozzle ports that adapts to central duct and adapts to the combustion-supporting gas spout of interlayer circular channel, and the combustion-supporting gas spout has through hole spout array, all belongs to protection domain of the present utility model.
Claims (8)
1, spray gun of side-blown converter for smelting non-ferrous metal, comprise the gun body of sleeve structure and the lance head of gun body front end, the central duct of described sleeve structure has the connecting interface that connects fuel delivery means, the interlayer circular channel of described sleeve structure has the connecting interface that connects combustion-supporting gas, it is characterized in that: lance head has the fuel nozzle ports that adapts to central duct and adapts to the combustion-supporting gas spout of interlayer circular channel, and described combustion-supporting gas spout has through hole spout array.
2, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1 is characterized in that: the axis of described combustion-supporting gas spout is the radial direction of the distribution circle at center at the axis with fuel nozzle ports, with the axis of fuel nozzle ports can be parallel, also can be not parallel.
3, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1 is characterized in that: the axis of described combustion-supporting gas spout is the tangential direction of the distribution circle at center at the axis with fuel nozzle ports, with the axis of fuel nozzle ports can be parallel, also can be not parallel.
4, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1, it is characterized in that: the section form of described combustion-supporting gas spout is a rectangle.
5, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1 is characterized in that: the section form of described combustion-supporting gas spout is circular.
6, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1 is characterized in that: described combustion-supporting gas spout is the Lavalle spout.
7, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1, it is characterized in that: the inside of described gun body and lance head is provided with cooling-water duct.
8, the described spray gun of side-blown converter for smelting non-ferrous metal of claim 1, it is characterized in that: described gun body and lance head are positioned at the part of inside furnace, and outer surface is provided with refractory masses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201232190U CN201276589Y (en) | 2008-10-22 | 2008-10-22 | Side-blown converter spray gun for non-ferrous metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201232190U CN201276589Y (en) | 2008-10-22 | 2008-10-22 | Side-blown converter spray gun for non-ferrous metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201276589Y true CN201276589Y (en) | 2009-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201232190U Expired - Lifetime CN201276589Y (en) | 2008-10-22 | 2008-10-22 | Side-blown converter spray gun for non-ferrous metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201276589Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049359A (en) * | 2011-01-04 | 2011-05-11 | 中国恩菲工程技术有限公司 | Spray gun and multi-fluid spray gun device provided with same |
-
2008
- 2008-10-22 CN CNU2008201232190U patent/CN201276589Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049359A (en) * | 2011-01-04 | 2011-05-11 | 中国恩菲工程技术有限公司 | Spray gun and multi-fluid spray gun device provided with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090722 Effective date of abandoning: 20081022 |