CN204644386U - Wear-resisting coal spouting gun of pressurization of blast furnace - Google Patents
Wear-resisting coal spouting gun of pressurization of blast furnace Download PDFInfo
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- CN204644386U CN204644386U CN201520110168.8U CN201520110168U CN204644386U CN 204644386 U CN204644386 U CN 204644386U CN 201520110168 U CN201520110168 U CN 201520110168U CN 204644386 U CN204644386 U CN 204644386U
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- gun
- spray gun
- nut
- clamping block
- blast furnace
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Abstract
Wear-resisting coal spouting gun of pressurization of blast furnace, comprise the body of a gun, rifle head, rifle head is made up of the sintering metal of steel pipe and liner thereof, and rifle head front end bends; Body of a gun periphery arranges stationary installation, stationary installation comprises spray gun clamp nut, the clamping block that spray gun clamp is threaded, between spray gun clamp and spray gun clamp nut, oil immersion asbestos are set, being provided with cross section between the end face that clamping block is relative with spray gun nut is leg-of-mutton open metal hold-fast ring, the inner ring surface of metal hold-fast ring and the coal powder injection long tube of coal spouting gun fit, and clamping block and spray gun nut are less than metal hold-fast ring maximum diameter towards the internal diameter of one end of metal hold-fast ring.
Description
Technical field
The utility model belongs to steel equipment field, specifically a kind of wear-resisting coal spouting gun of pressurization of blast furnace.
Background technology
Coal powder lance for blast furnace is the key part of metallurgical iron-smelting blast furnace Coalblowing system, coal dust is ejected in blast furnace burner hearth by convey coal pipe and flow regulating and controlling valve through coal spouting gun, the common seamless tube of current coal powder lance for blast furnace employing without exception or common stainless steel pipe, overall or split is welded, there is such phenomenon in the rifle head part that barral of a gun particularly works in blast furnace burner hearth: wear resistance, thermal stability, thermostability is not enough, work-ing life is short, jetting pressure is low, air port wearing and tearing are large, complicated operation, change frequent, activity duration is long, staff labor intensity is large, the direct output affecting blast fumance, cost and pig iron quality.Seriously govern the development of furnace coal spraying technology.The partial monopoly product used at some iron-smelting blast furnaces at present, part solve above-mentioned deficiency, the index such as fastness to rubbing and thermal stability is limitedly improved.In actually operating, between coal powder injection long tube and blowpipe, there is certain interval, if the fixing coal powder injection long tube that will make not in place does not overlap in the axis of blowpipe.The oil immersion asbestos that the design of existing gun fixture comprises fixation clamp, clamp nut and is clipped between fixation clamp and clamp nut, wherein fixation clamp, clamp nut and coal powder injection long tube have certain interval, invade asbestos with the oil that only has of spray gun close contact, oil is invaded asbestos and is played sealing and fixed action simultaneously.In use for some time, asbestos invaded by oil can the efflorescence because losing oil content, loses the fixed action to spray gun.Under furnace pressure effect, spray gun just has the danger automatically exited, and spray gun loses fixed action simultaneously, and activity space broadens, and the coal flow path direction of spray gun ejection is unstable, is easy to cause air port to wear and tear, affects production schedule, reduces blast furnace campaign.
Utility model content
The utility model provides a kind of wear-resisting coal spouting gun of pressurization of blast furnace, in order to solve defect of the prior art.
The utility model is achieved by the following technical programs:
Wear-resisting coal spouting gun of pressurization of blast furnace, comprise the body of a gun, rifle head, rifle head is made up of the sintering metal of steel pipe and liner thereof, and rifle head front end bends; Body of a gun periphery arranges stationary installation, stationary installation comprises spray gun clamp nut, the clamping block that spray gun clamp is threaded, between spray gun clamp and spray gun clamp nut, oil immersion asbestos are set, being provided with cross section between the end face that clamping block is relative with spray gun nut is leg-of-mutton open metal hold-fast ring, the inner ring surface of metal hold-fast ring and the coal powder injection long tube of coal spouting gun fit, and clamping block and spray gun nut are less than metal hold-fast ring maximum diameter towards the internal diameter of one end of metal hold-fast ring.
Wear-resisting coal spouting gun of pressurization of blast furnace as above, the cross section of described metal hold-fast ring is triangular in shape, and the end face of a limit and clamping block is fitted; The end face of another limit and spray gun clamp nut is fitted.
Wear-resisting coal spouting gun of pressurization of blast furnace as above, described clamping block is nut, and described spray gun nut is provided with cylindrical section, cylindrical section is provided with the outside screw suitable with clamping block.
Wear-resisting coal spouting gun of pressurization of blast furnace as above, described body of a gun afterbody is provided with manual stainless steel hard seal ball valve, and middle part is provided with ball valve.
Wear-resisting coal spouting gun of pressurization of blast furnace as above, described sintering metal is SHS sintering metal.
The utility model has the advantages that: the utility model life-span, long minimizing changed number of times: this utility model has the comprehensive mechanical performances such as wear-resisting, corrosion-resistant, high temperature oxidation resisting, it is its longer service life, replacement frequency is lower, ensure that full tuyere injection, decrease damping down number of times and auxiliary labor time.Position is stable enhances productivity and reduces production cost special starting material do rifle head because have employed, the body of a gun makes it have higher comprehensive mechanical performance, can work in high temperature, hyperbaric environment for a long time indeformable; Because reducing and front end bend, pressure is greatly improved, the lengthening at double of coal seedling, improves the state of combustion of coal dust greatly simultaneously, can improve injecting coal quantity and realize large winding-up.Reliably easy to operate and safe, owing to have employed instant open type ball valve, greatly simplify operating method, ensure that stopping property and the furnace pressure of blast furnace.The application of manual Stainless Steel Ball Valve makes the adjustment of flow more safe and reliable, avoids and is detained and blocking, make pulverized coal flow more smooth.Alleviate the labour intensity of employee, greatly improve labour productivity and decrease labour intensity.Strong to the fastening dynamics of coal spouting gun, duration of service is long, direction good fixing effect, the fastening of coal spouting gun and sealing function is separated and is completed by two parts.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation; Fig. 2 is the I partial enlargement structural representation of Fig. 1; Fig. 3 is the II partial enlargement structural representation of Fig. 1.
Reference numeral: 1 seal ball-valve 2 ball valve 3 body of a gun 4 rifle head 5 steel pipe 6 sintering metal 7 spray gun clamp 8 spray gun clamp nut 9 oil immersion asbestos 10 metal hold-fast ring 11 clamping block.
Embodiment
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Wear-resisting coal spouting gun of pressurization of blast furnace, as shown in Figure 1, Figure 2 and Fig. 3, comprise the body of a gun 3, rifle head 4, rifle head 4 is made up of the sintering metal 6 of steel pipe 5 and liner thereof, and rifle head front end bends; The body of a gun 3 periphery arranges stationary installation, stationary installation comprises spray gun clamp nut 8, the clamping block 11 that spray gun clamp 7 is threaded, between spray gun clamp 7 and spray gun clamp nut 8, oil immersion asbestos 9 are set, being provided with cross section between the end face that clamping block 11 is relative with spray gun nut 8 is leg-of-mutton open metal hold-fast ring 10, the inner ring surface of metal hold-fast ring 10 and the coal powder injection long tube 3 of coal spouting gun fit, and clamping block 11 and spray gun nut 8 are less than metal hold-fast ring 10 maximum diameter towards the internal diameter of one end of metal hold-fast ring 10.
The cross section of described metal hold-fast ring 10 is triangular in shape, and the end face of a limit and clamping block 11 is fitted; The end face of another limit and spray gun clamp nut 8 is fitted.
Described clamping block 11 is nut, and described spray gun nut 8 is provided with cylindrical section, cylindrical section is provided with the outside screw suitable with clamping block 11.
The described body of a gun 3 afterbody is provided with manual stainless steel hard seal ball valve 1, and middle part is provided with ball valve 2.
Described sintering metal 6 is SHS sintering metal.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (5)
1. wear-resisting coal spouting gun of pressurization of blast furnace, is characterized in that: comprise the body of a gun, rifle head, rifle head is made up of the sintering metal of steel pipe and liner thereof, and rifle head front end bends; Body of a gun periphery arranges stationary installation, stationary installation comprises spray gun clamp nut, the clamping block that spray gun clamp is threaded, between spray gun clamp and spray gun clamp nut, oil immersion asbestos are set, being provided with cross section between the end face that clamping block is relative with spray gun nut is leg-of-mutton open metal hold-fast ring, the inner ring surface of metal hold-fast ring and the coal powder injection long tube of coal spouting gun fit, and clamping block and spray gun nut are less than metal hold-fast ring maximum diameter towards the internal diameter of one end of metal hold-fast ring.
2. wear-resisting coal spouting gun of pressurization of blast furnace according to claim 1, is characterized in that: the cross section of described metal hold-fast ring is triangular in shape, and the end face of a limit and clamping block is fitted; The end face of another limit and spray gun clamp nut is fitted.
3. wear-resisting coal spouting gun of pressurization of blast furnace according to claim 1, is characterized in that: described clamping block is nut, and described spray gun nut is provided with cylindrical section, cylindrical section is provided with the outside screw suitable with clamping block.
4. wear-resisting coal spouting gun of pressurization of blast furnace according to claim 1, is characterized in that: described body of a gun afterbody is provided with manual stainless steel hard seal ball valve, and middle part is provided with ball valve.
5. wear-resisting coal spouting gun of pressurization of blast furnace according to claim 1, is characterized in that: described sintering metal is SHS sintering metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110168.8U CN204644386U (en) | 2015-02-15 | 2015-02-15 | Wear-resisting coal spouting gun of pressurization of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110168.8U CN204644386U (en) | 2015-02-15 | 2015-02-15 | Wear-resisting coal spouting gun of pressurization of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204644386U true CN204644386U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520110168.8U Expired - Fee Related CN204644386U (en) | 2015-02-15 | 2015-02-15 | Wear-resisting coal spouting gun of pressurization of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204644386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342328A (en) * | 2020-10-20 | 2021-02-09 | 本钢板材股份有限公司 | Blast furnace reinforced wear-resistant coal gun |
-
2015
- 2015-02-15 CN CN201520110168.8U patent/CN204644386U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342328A (en) * | 2020-10-20 | 2021-02-09 | 本钢板材股份有限公司 | Blast furnace reinforced wear-resistant coal gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |