CN203190410U - Natural gas spray gun for smelting furnace - Google Patents
Natural gas spray gun for smelting furnace Download PDFInfo
- Publication number
- CN203190410U CN203190410U CN2013201737317U CN201320173731U CN203190410U CN 203190410 U CN203190410 U CN 203190410U CN 2013201737317 U CN2013201737317 U CN 2013201737317U CN 201320173731 U CN201320173731 U CN 201320173731U CN 203190410 U CN203190410 U CN 203190410U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- spray gun
- outer tube
- pipe
- smelting furnace
- 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 - Lifetime
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
Landscapes
- Nozzles (AREA)
Abstract
Provided is a natural gas spray gun for a smelting furnace. An oxygen enrichment inlet is formed in the upper portion of a spray gun base. An outer sleeve is connected to the lower portion of the spray gun base. A natural gas inlet is connected in the middle of the spray gun base. An inner sleeve is arranged in the spray gun base and the outer sleeve. The inner sleeve comprises an inner pipe upper joint and an inner pipe lower joint. The upper end of the inner pipe upper joint is connected with the oxygen enrichment inlet. The inner pipe lower joint comprises an inner layer pipe with the upper end connected with the lower end of the inner pipe upper joint, and an outer layer pipe sleeved outside the inner layer pipe. A plurality of inner through grooves which are used for being matched with the inner wall of the outer layer pipe are formed in the outer periphery of the inner layer pipe. A plurality of outer through grooves which are used for being matched with the inner wall of the outer sleeve are formed in the outer periphery of the outer layer pipe. The outer sleeve comprises an outer sleeve upper joint and an outer sleeve pipe lower joint connected at the lower end of the outer sleeve upper joint. According to the natural gas spray gun, flow of the spray gun and ventilation section area are changed, natural gas flow speed is 30-50m<3>/h, flow speed is larger than 140m/s, heat convection is enhanced, melting burning loss is avoided, and the natural gas spray gun has the advantages that natural gas is smooth in flow speed, burning is efficient and full, automatic cooling is carried out on a gun pipe, replacing is convenient, and cost is low.
Description
Technical field
The utility model relates to a kind of smelting furnace natural gas spraying gun.
Background technology
At plumbous smelting industry, according to the different type of furnaces, adopt different combustion systems, existing bottom blowing reduction spray gun is a kind ofly to provide heat in the stove continuously, furnace charge is stirred, is conducive to the reduction spray gun that reduction reaction is carried out, the gas passage of spray gun is divided into 3 layers, what internal layer fed is fine coal and compressed air, and what the intermediate layer fed is oxygen, and what skin fed is the nitrogenize G﹠W.The gaseous species that feeds is many, spray gun structure is complicated, not easy to operate, spray gun weak point in service life, and needs from external introduction, cost height.The top-submerged lance technology develops over more than 20 year comparatively fast, obtain promotion and application at aspects such as copper, nickel, lead, tin melting and zinc leaching residue, lead skim processing, but the life-span of spray gun is short, want periodic maintenance, operating rate is low, therefore the service life of how to improve spray gun, the discussion that reduces cost is had very important on-the-spot meaning.
Summary of the invention
Goal of the invention of the present utility model be to overcome the above-mentioned deficiency of prior art and unimpeded, the efficient fully burning of a kind of natural gas flow velocity is provided, to gun barrel is lowered the temperature automatically, is convenient to change, cost is low smelting furnace natural gas spraying gun.
The technical solution of the utility model is: spray gun base top is provided with the oxygen enrichment entrance, and the bottom is connected with outer tube, and the middle part is connected with gas inlet; Be provided with inner sleeve in spray gun base and the outer tube; Described inner sleeve comprises under interior Guan Shangjie, the interior pipe and saving; The Guan Shangjie upper end links to each other with the oxygen enrichment entrance in described; In described pipe down joint comprise inner layer pipe that the upper end links to each other with interior Guan Shangjie lower end, be set in the outer tube outside the inner layer pipe; Described inner layer pipe excircle is provided with a plurality of for cooperate the interior groove that forms internal layer natural gas passage with the outer tube inwall; Described outer tube excircle is provided with a plurality of for cooperate the outer groove that forms outer natural gas passage with outer sleeve inner wall; Described outer tube comprises joint on the outer tube, is connected under the outer tube that saves the lower end on the outer tube and saves.
Described outer tube and spray gun base are through being threaded.
Described outer tube and spray gun base junction are provided with the asbestos rubber pad.
Groove is 6-8 in described, is uniformly distributed on the inner layer pipe excircle.
Described outer groove is 10-12, is uniformly distributed on the outer tube excircle.
The central axis that saves under the central axis of Guan Shangjie and the interior pipe in described is positioned at same straight line.
Spray gun is installed on the body of heater by the spray gun base, and spray gun outer tube top is welded with male thread.Base and spray gun junction are provided with interior screw thread.Spray gun outer tube and base link to each other and seal by the asbestos rubber pad through the spiral shell button; Guan Shangjie links to each other through the spiral shell button with base in the spray gun; Joint is provided with two-layer natural gas groove under the interior pipe of natural gas spraying gun, and the uniform 10-12 of outer groove size 3.4mm*1.5mm, the uniform 6-8 of interior groove size 2.9mm*1.5mm.Outer tube is divided into two joints, connects by spot welding; Inner sleeve is divided into two sections, and material-saving matter is 0Cr18Ni9Ti on the interior pipe, and material-saving matter is 0Cr25Ni20 under the interior pipe, and the junction of joint and interior Guan Shangjie under the interior pipe connects by a welding tractor is flat, and interior Guan Shangjie is concentric with interior Guan Shangjie.
Effect of the present utility model is: the outer tube of spray gun and inner sleeve are divided equally two sections, save if damage under joint or the interior pipe under the outer tube, are convenient for changing and save cost; Joint is provided with two-layer natural gas passage under the interior pipe of natural gas spraying gun, and groove fineness ▽ 12-15 enters natural gas jet stack in the stove to avoid influence, has guaranteed that combustion gas reaches middle part burning in the stove.Compare the flow that changes spray gun and the sectional area of ventilation with spray gun before, natural gas flow velocity 30-50m
3/ h, flow velocity ﹥ 140m/s strengthens heat convection, has avoided the fusing scaling loss; Above the spray gun overcoat, be provided with one section welding male thread in addition, the convenient installation, good sealing effect prevents that natural gas from entering inner sleeve and oxygen-enriched combusting blast.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the profile that saves under the interior pipe.
Among the figure, 1, the oxygen enrichment entrance, 2, gas inlet, 3, interior Guan Shangjie, 4, save under the interior pipe, 5, outer groove, 6, interior groove, 7, outer tube, 8, screw thread, 9, the asbestos rubber pad, 10 flanges, 11, the spray gun base.
The specific embodiment
Among Fig. 1, spray gun base 11 tops are provided with oxygen enrichment entrance 1, and the bottom is connected with outer tube 7, and the middle part is connected with gas inlet 2; Be provided with inner sleeve in spray gun base 11 and the outer tube 7; Inner sleeve comprises under interior Guan Shangjie 3, the interior pipe and saves 4; Interior Guan Shangjie 3 upper ends link to each other with oxygen enrichment entrance 1; In pipe down joint 4 comprise inner layer pipe that the upper end links to each other with interior Guan Shangjie 3 lower ends, be set in the outer tube outside the inner layer pipe; The inner layer pipe excircle is provided with 6-8 interior grooves 6, is uniformly distributed on the inner layer pipe excircle; The outer tube excircle is provided with 10-12 outer grooves 5, is uniformly distributed on the outer tube excircle.Outer tube 7 and spray gun base 11 are through being threaded.Outer tube 7 is provided with asbestos rubber pad 9 with spray gun base 11 junctions.8 is screw thread, and 10 is flange.
Among Fig. 2,5 is outer groove, and 6 is interior groove.
Claims (6)
1. smelting furnace natural gas spraying gun, it is characterized in that: spray gun base (11) top is provided with oxygen enrichment entrance (1), and the bottom is connected with outer tube (7), and the middle part is connected with gas inlet (2); Be provided with inner sleeve in spray gun base (11) and the outer tube (7); Described inner sleeve comprises joint (4) under interior Guan Shangjie (3), the interior pipe; Guan Shangjie (3) upper end links to each other with oxygen enrichment entrance (1) in described; In described pipe down joint (4) comprise inner layer pipe that the upper end links to each other with interior Guan Shangjie (3) lower end, be set in the outer tube outside the inner layer pipe; Described inner layer pipe excircle is provided with a plurality of for cooperate the interior groove (6) that forms internal layer natural gas passage with the outer tube inwall; Described outer tube excircle is provided with a plurality of for cooperating the outer groove (5) that forms outer natural gas passage with outer tube (7) inwall; Described outer tube (7) comprises joint on the outer tube, is connected under the outer tube that saves the lower end on the outer tube and saves.
2. smelting furnace natural gas spraying gun according to claim 1 is characterized in that: described outer tube (7) and spray gun base (11) are through being threaded.
3. smelting furnace natural gas spraying gun according to claim 1 is characterized in that: described outer tube (7) is provided with asbestos rubber pad (9) with spray gun base (11) junction.
4. smelting furnace natural gas spraying gun according to claim 1 is characterized in that: groove (6) is 6-8 in described, is uniformly distributed on the inner layer pipe excircle.
5. smelting furnace natural gas spraying gun according to claim 1, it is characterized in that: described outer groove (5) is 10-12, is uniformly distributed on the outer tube excircle.
6. smelting furnace natural gas spraying gun according to claim 1 is characterized in that: the central axis that saves (4) in described under the central axis of Guan Shangjie (3) and the interior pipe is positioned at same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201737317U CN203190410U (en) | 2013-04-09 | 2013-04-09 | Natural gas spray gun for smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201737317U CN203190410U (en) | 2013-04-09 | 2013-04-09 | Natural gas spray gun for smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203190410U true CN203190410U (en) | 2013-09-11 |
Family
ID=49107266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201737317U Expired - Lifetime CN203190410U (en) | 2013-04-09 | 2013-04-09 | Natural gas spray gun for smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203190410U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112304094A (en) * | 2020-10-27 | 2021-02-02 | 云南驰宏锌锗股份有限公司 | Natural gas spray gun |
| CN112683074A (en) * | 2020-12-16 | 2021-04-20 | 铜陵德兴机械制造有限责任公司 | Top-blown furnace spray gun and special maintenance method thereof |
| WO2021176129A1 (en) | 2020-03-04 | 2021-09-10 | Metso Outotec Finland Oy | A pipe flange coupling device, a pipe assembly and a top-submerged-lance (tsl) system |
-
2013
- 2013-04-09 CN CN2013201737317U patent/CN203190410U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021176129A1 (en) | 2020-03-04 | 2021-09-10 | Metso Outotec Finland Oy | A pipe flange coupling device, a pipe assembly and a top-submerged-lance (tsl) system |
| EP4115106A4 (en) * | 2020-03-04 | 2023-11-29 | Metso Metals Oy | A pipe flange coupling device, a pipe assembly and a top-submerged-lance (tsl) system |
| CN112304094A (en) * | 2020-10-27 | 2021-02-02 | 云南驰宏锌锗股份有限公司 | Natural gas spray gun |
| CN112683074A (en) * | 2020-12-16 | 2021-04-20 | 铜陵德兴机械制造有限责任公司 | Top-blown furnace spray gun and special maintenance method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203190410U (en) | Natural gas spray gun for smelting furnace | |
| CN208791676U (en) | A kind of blast-furnace tuyere for preventing from upwarping | |
| CN105950824B (en) | A kind of oxygen, combustion, the arc furnace steeling process of pulvis coenosarc injection | |
| CN104152713A (en) | Side-blowing lead melting reduction device | |
| CN203241684U (en) | Cooling protective sleeve for high-temperature camera device | |
| CN102031338B (en) | Method for nitriding molten steel stably | |
| CN107034329A (en) | One kind can be blown pluralities of fuel blast furnace copper coin tuyere case | |
| CN212451578U (en) | Conveying system for uniformly distributing pulverized coal to enter melting converting furnace burner | |
| CN108220515B (en) | A kind of vertical two-part pulverized coal injection in blast furnace method | |
| CN1688721A (en) | Metallurgical vessel | |
| CN204138734U (en) | Blow side plumbous melting reduction device | |
| CN103994438B (en) | A kind of reverberatory furnace burner | |
| CN203976601U (en) | Porcelain platinum tank furnace bubbling device | |
| CN207062318U (en) | Sealing device in electric arc furnaces feed opening | |
| CN208793814U (en) | A kind of nickel-based alloy pipe | |
| CN106918041A (en) | For the fuel lance of submerged combustion bath smelting device | |
| CN101649373B (en) | Multifunctional nozzle of finery | |
| CN207999810U (en) | A kind of bushing type blast orifice oxygen burner | |
| CN207159264U (en) | A kind of specific purpose tool for clearing up nitrogen seal ring air holes | |
| CN201402055Y (en) | Super high-power coherent oxygen lance | |
| CN206736331U (en) | A kind of cooled Smelting magnesium erects tank deslagging mouth structure | |
| CN207113617U (en) | Mineral hot furnace flue water-cooling structure | |
| CN203615766U (en) | Spray gun for nickel top blowing furnace | |
| CN211400834U (en) | Simple burner for cleaning coking in settling electric furnace body | |
| CN214830447U (en) | Temporary cooling and purging device for hot air outlet furnace shell of hot blast stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |