CN201560193U - Blast furnace coal powder spray gun - Google Patents
Blast furnace coal powder spray gun Download PDFInfo
- Publication number
- CN201560193U CN201560193U CN2009202772449U CN200920277244U CN201560193U CN 201560193 U CN201560193 U CN 201560193U CN 2009202772449 U CN2009202772449 U CN 2009202772449U CN 200920277244 U CN200920277244 U CN 200920277244U CN 201560193 U CN201560193 U CN 201560193U
- Authority
- CN
- China
- Prior art keywords
- coal powder
- powder spray
- spray gun
- coal
- pipe
- 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
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model belongs to the improvement of the structure of an iron-smelting blast furnace coal powder spray gun and particularly relates to a coal powder spray gun. The coal powder spray gun is arranged on an air supply branch pipe. The rear part of the coal powder spray gun is provided with a control valve. The coal powder spray gun consists of two layers of stainless steel metal sleeves, wherein an inner pipe of the coal powder spray gun is a coal powder inlet pipe; a ring-shaped channel between an outer sleeve and the inner pipe is a cooling air channel; the insides of through holes uniformly arranged on the wall of the outer sleeve are welded and fixed with positioning pins; the positioning pins extending the inside of the outer sleeve are matched with the outer wall of the inner pipe to position the inner pipe; the pipeline of the inner pipe at the tail part of the coal powder spray gun is provided with a tee junction with a coal powder discharge port; and the pipeline of the outer sleeve is provided with a tee junction with a cooling air inlet. The head part of the coal powder spray gun is bent upwards. The center line of the inner pipe at the head part of the coal powder spray gun and the center line of a tuyere small sleeve are coincident. The inner wall of the inner pipe is provided with a ceramic wear-resisting inside lining. The coal powder spray gun has the advantages of reasonable structure, long service life and no deformation and no burning loss under the high temperature condition, can avoid damaging the tuyere small sleeve and is convenient for assembly, disassembly, decoration and regulation.
Description
Technical field
The utility model belongs to the improvement of Steel Plant's iron-smelting blast furnace Coal powder spray rifle structure, particularly a kind of Coal powder spray rifle.
Background technology
Some Steel Plant takes the medullary ray and the blast furnace tuyere small sleeve medullary ray that paste the blast furnace pulverized coal muzzle inconsistent at present, makes Coal powder spray rifle spout ejection air-flow and coal dust burn out tuyere small sleeve; The unreasonable race wind that causes of coal rifle mating surface need cool off with pressurized air, and the wear-resisting formation of coal dust jet pipe is easy to wear; The structure of coal rifle is reasonable inadequately, and is not easy to assemble, influences the fast processing of accident.
The utility model content
The purpose of this utility model is to provide a kind of blast furnace pulverized coal rifle, and it is rational in infrastructure, not only long service life, indeformable under hot conditions, be difficult for scaling loss, can stop damaged tuyere small sleeve, and be convenient to dismounting, finishing and adjusting, can make the accident fast processing.
The purpose of this utility model is to provide a kind of blast furnace pulverized coal rifle, the blast inlet place that is included in blast furnace tuyere small sleeve is installed with blowpipe, the Coal powder spray rifle is installed on blowpipe, rear portion at the Coal powder spray rifle is installed with by-pass valve control, the Coal powder spray rifle that constitutes by the double-layer stainless steel metal sleeve, pipe is for advancing coal pipe in it, circular channel between its outer tube and the interior pipe is the cooling air passage, weld in the through hole of uniform setting on its axis of casing wall upper edge outside and fixing steady brace, the steady brace that stretches in the outer tube matches with the outer wall of interior pipe, pipe location in making, on the interior pipeline of Coal powder spray gun breech portion, the Y-junction with fine coal relief outlet is installed, Y-junction with cooling air inlet is installed on the sleeved pipe outside, the head of Coal powder spray rifle is bent upwards, the medullary ray of pipe and the central lines of tuyere small sleeve are being provided with the ceramic wear-resisting liner in the head after its bending on the inwall of interior pipe.
Because Coal powder spray rifle of the present utility model is made of the double-layer stainless steel metal sleeve, cooling air annular passage is being set between outer tube and interior pipe.During the utility model work, in the circular channel, feed the pressurized air cooling, thereby guaranteed that the coal gun barrel can not be out of shape scaling loss under 1200 ℃ of wind-warm syndrome conditions.The wear-resistant ceramic liner is being set on the inwall of pipe in the coal rifle, is prolonging the work-ing life of interior pipe.Because the head of Coal powder spray rifle is bent upwards, the central lines of tube hub line and tuyere small sleeve makes air-flow and coal dust spray in the stove along the medullary ray of tuyere small sleeve in the head after its bending, has stopped damaged tuyere small sleeve.Coal powder entrance of the present utility model, cooling air inlet all adopts quick metallic hose to be connected with the coal dust relief outlet, fast processing that can the realization accident.The utility model is rational in infrastructure, and not only long service life is indeformable under hot conditions, is difficult for scaling loss, can stop damaged tuyere small sleeve, and is convenient to dismounting, finishing and adjusting, can make the accident fast processing.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a sectional structure synoptic diagram of the present utility model;
Fig. 2 is that the sectional structure synoptic diagram amplifies in the A portion of Fig. 1.
Embodiment
A kind of blast furnace pulverized coal rifle, as Fig. 1, shown in Figure 2, the blast inlet place that is included in blast furnace tuyere small sleeve 1 is installed with blowpipe 2, the Coal powder spray rifle is installed on blowpipe 2, rear portion at the Coal powder spray rifle is installed with by-pass valve control, the Coal powder spray rifle that constitutes by the double-layer stainless steel metal sleeve, pipe 3 is for advancing coal pipe in it, circular channel between its outer tube 4 and the interior pipe 3 is the cooling air passage, steady brace 6 is being fixed in welding in the through hole of uniform setting on outer tube 4 its axis of wall upper edge, the steady brace 6 that stretches in the outer tube 4 matches with the outer wall of interior pipe 3, pipe 3 location in making, on interior pipe 3 pipelines of Coal powder spray gun breech portion, the Y-junction with fine coal relief outlet 9 is installed, on outer tube 4 pipelines, the Y-junction with cooling air inlet 8 is installed, the head of Coal powder spray rifle is bent upwards, and the medullary ray of pipe 3 and the central lines of tuyere small sleeve 1 are being provided with ceramic wear-resisting liner 6 in the head after its bending on the inwall of interior pipe 3.Spacing between the uniform welding fixed steady brace 6 is 500mm.By uniform welding fixed steady brace 6, guaranteed the concentricity between the double-layer stainless steel sleeve pipe.Have the Y-junction of fine coal relief outlet and have on the sleeved of Y-junction of cooling air port inlet 8 in connection arm of force block 10 is being set.Arm of force block 10 makes dismounting easily, has avoided agent structure to hit during dismounting and has damaged.Valve is made of unidirectional reverse checkvalve 7.Unidirectional reverse checkvalve 7 can avoid the coal rifle to remove the hot blast ejection of 1200 ℃ in back blast furnace, and when 0.05MPa pressure, unidirectional reverse checkvalve 7 just can be closed automatically, has improved security.Coal rifle structure of the present utility model can realize radially 200 degree scopes rotation, axially also can regulate simultaneously, satisfies to produce and regulates needs.Coal rifle of the present utility model reaches 4 months work-ing life, realized and blast furnace synchronization timing maintain and replace, stopped that the coal rifle damages zero the time damping down.
Claims (4)
1. blast furnace pulverized coal rifle, the blast inlet place that is included in blast furnace tuyere small sleeve (1) is installed with blowpipe (2), on blowpipe (2), the Coal powder spray rifle is installed, rear portion at the Coal powder spray rifle is installed with by-pass valve control, it is characterized in that: the Coal powder spray rifle that constitutes by the double-layer stainless steel metal sleeve, pipe (3) is for advancing coal pipe in it, circular channel between its outer tube (4) and the interior pipe (3) is the cooling air passage, steady brace (6) is being fixed in welding in the through hole of uniform setting on its axis of outer tube (4) wall upper edge, the steady brace (6) that stretches in the outer tube (4) matches with the outer wall of interior pipe (3), make interior pipe (3) location, on interior pipe (3) pipeline of Coal powder spray gun breech portion, the Y-junction with fine coal relief outlet (9) is installed, the have cooling air inlet Y-junction of (8) is installed on outer tube (4) pipeline, the head of Coal powder spray rifle is bent upwards, the medullary ray of pipe (3) and the central lines of tuyere small sleeve (1) are being provided with ceramic wear-resisting liner (6) in the head after its bending on the inwall of interior pipe (3).
2. blast furnace pulverized coal rifle according to claim 1 is characterized in that: the spacing between the uniform welding fixed steady brace (6) is 500mm.
3. blast furnace pulverized coal rifle according to claim 1 is characterized in that: have the Y-junction of fine coal relief outlet and have on the sleeved of Y-junction of cooling air port inlet (8) in connection arm of force block (10) is being set.
4. blast furnace pulverized coal rifle according to claim 1 is characterized in that: valve is made of unidirectional reverse checkvalve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202772449U CN201560193U (en) | 2009-12-11 | 2009-12-11 | Blast furnace coal powder spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202772449U CN201560193U (en) | 2009-12-11 | 2009-12-11 | Blast furnace coal powder spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201560193U true CN201560193U (en) | 2010-08-25 |
Family
ID=42625340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202772449U Expired - Fee Related CN201560193U (en) | 2009-12-11 | 2009-12-11 | Blast furnace coal powder spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201560193U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901095A (en) * | 2011-07-29 | 2013-01-30 | 宜兴天地节能技术有限公司 | Ceramic assembled combustor utilizing pulverized coal |
| CN103131810A (en) * | 2011-11-29 | 2013-06-05 | 张昭贵 | Blast furnace oxygen enrichment coal powder injection device and method off-line assembly and disassembly thereof |
| CN115121392A (en) * | 2022-07-27 | 2022-09-30 | 广西山河新材料科技有限公司 | Blast furnace coal powder nozzle |
-
2009
- 2009-12-11 CN CN2009202772449U patent/CN201560193U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901095A (en) * | 2011-07-29 | 2013-01-30 | 宜兴天地节能技术有限公司 | Ceramic assembled combustor utilizing pulverized coal |
| CN103131810A (en) * | 2011-11-29 | 2013-06-05 | 张昭贵 | Blast furnace oxygen enrichment coal powder injection device and method off-line assembly and disassembly thereof |
| CN115121392A (en) * | 2022-07-27 | 2022-09-30 | 广西山河新材料科技有限公司 | Blast furnace coal powder nozzle |
| CN115121392B (en) * | 2022-07-27 | 2024-03-26 | 惠州市鼎泰欣科技有限公司 | Pulverized coal nozzle of blast furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102605119B (en) | Coal dust conveying during a kind of pulverized coal injection in blast furnace and pre-heating technique device | |
| CN201560193U (en) | Blast furnace coal powder spray gun | |
| CN102814248A (en) | Nozzle for axial siphon powder delivering type cold spray | |
| CN102374536A (en) | Gas burner for premixing automatically-sucked air | |
| CN202688339U (en) | Pulverized coal distributor for blast furnace coal injection | |
| CN203820808U (en) | Pulverized coal spray-blowing gun of blast furnace | |
| CN215628053U (en) | Blast furnace coal gun with anti-abrasion coating | |
| CN205832951U (en) | A kind of extension type SNCR denitration processes atomizing lance | |
| CN102380464B (en) | Oil-spraying oil-cooling oxygen gun | |
| CN211339571U (en) | Coal powder spray gun with tapered nozzle for blast furnace | |
| CN207062310U (en) | Blast furnace blowing Fuel lance | |
| CN207999810U (en) | A kind of bushing type blast orifice oxygen burner | |
| CN205119129U (en) | Air purge amasss charcoal nozzle | |
| CN207751345U (en) | Rotary kiln adjustable burner | |
| CN203927900U (en) | A kind of micro-oil coal powder burner | |
| CN203586197U (en) | Multichannel pulverized coal burner | |
| CN202328269U (en) | Automatic air suction premixing gas burner | |
| CN207103826U (en) | A kind of submersed nozzle roasting case penetrates suction type burner | |
| CN201459166U (en) | Air intake belly pipe for blast furnace | |
| CN102183147A (en) | Spray gun of flame gunning machine | |
| CN101768472B (en) | Direct-injection type coal-water-slurry gasification nozzle | |
| CN107312898B (en) | Blast furnace coal powder spray head | |
| CN212713376U (en) | Sleeve nozzle | |
| CN201697124U (en) | Powdered coal burner for kiln head | |
| CN204874568U (en) | Buggy spray gun for blast furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20101211 |