CN205933863U - Blast furnace ceramic lining spray gun with keep off ring - Google Patents
Blast furnace ceramic lining spray gun with keep off ring Download PDFInfo
- Publication number
- CN205933863U CN205933863U CN201520934217.XU CN201520934217U CN205933863U CN 205933863 U CN205933863 U CN 205933863U CN 201520934217 U CN201520934217 U CN 201520934217U CN 205933863 U CN205933863 U CN 205933863U
- Authority
- CN
- China
- Prior art keywords
- spray gun
- blast furnace
- baffle ring
- ceramic layer
- steel
- 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.)
- Active
Links
- 239000007921 spray Substances 0.000 title claims abstract description 33
- 239000000919 ceramic Substances 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 239000003245 coal Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000000843 powder Substances 0.000 abstract description 2
- 206010037660 Pyrexia Diseases 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 230000005514 two-phase flow Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- 206010021703 Indifference Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a blast furnace ceramic lining spray gun with keep off ring comprises with spray gun export section the rifle body and the gas -solid two -phase flow entry that sets up on the rifle body, and spray gun export section is by steel spray gun body (1) and cover in ceramic layer (2) of steel spray gun body internal surface constitution. Have in the spray gun export section and be used for blockking that the ceramic layer takes place the structure that blocks that high -temperature damage slided. The utility model discloses utilize the setting that keeps off the ring, prevent the ceramic displacement of circumferential crack export section to improve ceramic lining spray gun outlet diameter's uniformity, prolonged the life of spray gun, be favorable to even coal powder injection.
Description
Technical field
The utility model belongs to metallurgy high furnace equipment, especially the pulverized coal gun manufacturing field of equipment of blast furnace lining pottery
Background technology
At present, domestic and international blast furnace spray gun is divided into straight rifle and two kinds of curved rifle, and straight rifle has part blast furnace spray gun liner pottery, and
Curved rifle due to bend pipe position serious wear, therefore, nearly all blast furnace spray gun pottery all in spray gun front end bend pipe position liner
(as shown in fig. 1:The A portion of figure (a) straight tube spray gun, the B portion of figure (b) elbow spray gun).
During inner lining of steel pipe Production of Ceramics, the thermal stress of pottery and the pressure of steel pipe cooling meat may make pottery
Produce micro-crack, then during the use of spray gun, being heated or shaking of gun barrel may make pottery produce circumferential crack.
In addition, lined ceramicses length is longer, thickness of steel pipe is bigger, and the probability cracking is also higher.Find in production practices, its liner
Pottery more or less all creates circumferential crack.However, finding through long term production, as long as lined ceramicses spray gun occurs without
The phenomenon that crack width increases is (as Fig. 2:C is lined ceramicses, and D is that annular hair check portion occurs), lined ceramicses still can be abundant
Play its wear-resisting function, reach the purpose improving service life of lance.In fact, circumferential crack produces and is also good, and that is, it is released
Put thermal stress in high temperature forming process for the lined ceramicses, effectively prevent lined ceramicses burst apart phenomenon generation (as scheme
3：E is lined ceramicses, and F bursts apart for lined ceramicses at phenomenon).
At present, often have blast furnace occur lined ceramicses spray gun lined ceramicses region (mainly curved rifle) by coal dust is worn out shadow
Ring the accident producing.Through carefully studying discovery, occur this accident must possess three below condition：1st, spray gun lined ceramicses
Create circumferential crack；2nd, circumferential crack width increases to a certain extent, and lined ceramicses move forward from cracks in other words, position
Shifting amount reaches to a certain degree, such as Fig. 4, (in Fig. 4, G is lined ceramicses, and H is that crackle is broadening or pottery is subjected to displacement forward place)；3、
The circumferential crack location reaching one fixed width is exactly that coal dust washes away the position of most serious (as Fig. 5:J is lined ceramicses,
K washes away critical regions for coal dust).But existing lined ceramicses technology also cannot overcome lined ceramicses spray gun at 1100-1300 DEG C
The problem that in hot environment, lined ceramicses crack, the position that more uncontrollable crackle produces.Therefore, above-mentioned accident to be prevented
Generation, only try every possible means to solve the problems, such as lined ceramicses anterior pottery displacement.
Utility model content
In view of the above deficiency of prior art, the more good blast furnace lining pottery spray of the purpose of this utility model acquisition
Rifle, overcomes the disadvantage mentioned above of prior art, prevents outlet section pottery displacement in blast furnace for the blast furnace lining pottery spray gun.
The purpose of this utility model is to be realized by following means：
There is blast furnace lining pottery spray gun, the gas-particle two-phase inflow entrance by gun body and being arranged in gun body and the spray gun of baffle ring
Outlet section forms, and lance outlet section is made up of in the ceramic layer 2 of steel gun body inner surface steel gun body 1 and covering.
There is in lance outlet section the stop construction for stopping ceramic layer generation high temperature sliding.
Further, described stop is configured to be arranged on the baffle ring 3 of the lance outlet section port of export.
Further, described baffle ring 3 has horn-like internal orifice 4, and the maximum gauge of horn mouth internal orifice is less than ceramic layer external diameter.
Using design as above, the utility model prevents the pottery displacement of circumferential crack outlet section using baffle ring, and improves
The uniformity of lined ceramicses lance outlet diameter.Because every lined ceramicses exit inside diameter is all irregular, every spray gun all exists
Different, and its internal diameter almost indifference after steel baffle ring is installed, be conducive to uniform coal powder injection.
Brief description
Fig. 1 is lance outlet section lined ceramicses schematic diagram.
Fig. 2 is lined ceramicses circumferential crack schematic diagram.
Fig. 3 is that lined ceramicses burst apart phenomenon schematic diagram.
Fig. 4 is that lined ceramicses crackle breach is broadening or ceramic displacement diagram.
Fig. 5 curved rifle coal dust washes away serious position schematic diagram.
Baffle ring schematic diagram (L is lined ceramicses) is installed in Fig. 6 the utility model spray gun front end.
Fig. 7 the utility model has the blast furnace lining pottery spray gun schematic diagram of baffle ring.
Fig. 8 the utility model baffle ring detail drawing.
In figure, 10 is gun body, and 20 and 30 are gas-particle two-phase inflow entrance, and 1 is steel gun body,
2 is ceramic layer, and 3 is baffle ring, and 4 is the horn-like internal orifice of baffle ring.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Fig. 6 is to 8:There is the blast furnace lining pottery spray gun of baffle ring, lance outlet section by steel gun body 1 and is covered
Cover the ceramic layer 2 in steel gun body inner surface to constitute, the outlet of lance outlet section has for stopping ceramic layer generation high temperature
Destroy the baffle ring 3 of sliding.Baffle ring 3 is designed with horn mouth (Fig. 8), and horn mouth maximum gauge is less than ceramic external diameter.
Using basic scheme of the present utility model, multiple equivalent replacements can be completed in conjunction with prior art in actual enforcement
Scheme, is clearly not limited to baffle ring for stopping that ceramic layer occurs the stop of high temperature sliding to construct, can be that it completes to stop
There is the barrier structure of high temperature sliding in ceramic layer.These variants all should belong to protection domain of the present utility model.
Claims (3)
1. there is the blast furnace lining pottery spray gun of baffle ring, gone out by gun body and the gas-particle two-phase inflow entrance being arranged in gun body and spray gun
Mouth section composition, lance outlet section by steel gun body (1) and covers ceramic layer (2) structure in steel gun body inner surface
Become it is characterised in that having the stop construction for stopping ceramic layer generation high temperature sliding in lance outlet section.
2. the blast furnace lining pottery spray gun with baffle ring according to claim 1 is it is characterised in that described stop is configured to
It is arranged on the baffle ring (3) of the lance outlet section port of export.
3. the blast furnace lining pottery spray gun with baffle ring according to claim 2 is it is characterised in that described baffle ring (3) has
There is horn-like internal orifice (4), the maximum gauge of horn mouth internal orifice is less than ceramic layer external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934217.XU CN205933863U (en) | 2015-11-20 | 2015-11-20 | Blast furnace ceramic lining spray gun with keep off ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520934217.XU CN205933863U (en) | 2015-11-20 | 2015-11-20 | Blast furnace ceramic lining spray gun with keep off ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205933863U true CN205933863U (en) | 2017-02-08 |
Family
ID=57933696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520934217.XU Active CN205933863U (en) | 2015-11-20 | 2015-11-20 | Blast furnace ceramic lining spray gun with keep off ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205933863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174642A (en) * | 2021-04-30 | 2021-07-27 | 苏州市吴中喷丝板有限公司 | Superhard ceramic high-speed kinetic energy gun body for epidemic prevention spinneret body and preparation method |
-
2015
- 2015-11-20 CN CN201520934217.XU patent/CN205933863U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174642A (en) * | 2021-04-30 | 2021-07-27 | 苏州市吴中喷丝板有限公司 | Superhard ceramic high-speed kinetic energy gun body for epidemic prevention spinneret body and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103981311B (en) | Blast-furnace coal powder injection rifle | |
| CN205933863U (en) | Blast furnace ceramic lining spray gun with keep off ring | |
| CN102690663A (en) | Dry coke quenching oven annular air duct chain structure combination refractory brick | |
| CN211503648U (en) | Integrated shaft furnace for drying, preheating and sintering metal ore/nonmetal ore pellets | |
| CN203820808U (en) | Pulverized coal spray-blowing gun of blast furnace | |
| CN107447066A (en) | Integral type pulverized coal injection in blast furnace preheater | |
| CN207062310U (en) | Blast furnace blowing Fuel lance | |
| CN207512080U (en) | A kind of gas burns the gas directing system of double-hearth lime kiln | |
| CN214422671U (en) | Bending-resistant wear-resistant coal injection gun | |
| CN201999953U (en) | Blast furnace peephole coal injection device | |
| CN204661597U (en) | A kind of black reactor trunnion device | |
| CN211339571U (en) | Coal powder spray gun with tapered nozzle for blast furnace | |
| CN209820163U (en) | High-temperature oil shaft kiln nozzle cooling device | |
| CN209664282U (en) | A kind of baking guide device applied to ladle and brick cup | |
| CN209555142U (en) | A kind of convenience adds the coke dry quenching furnace of water | |
| CN101768472B (en) | Direct-injection type coal-water-slurry gasification nozzle | |
| CN107312898B (en) | Blast furnace coal powder spray head | |
| CN208964957U (en) | It is a kind of to can inhibit the blast-furnace tuyere and its tools that middle set upwarps | |
| CN212293630U (en) | Heat dissipation type bending-resistant heat-resistant coal injection gun | |
| CN206950952U (en) | A kind of shoe of SNCR spray guns | |
| CN205550604U (en) | Take mekralon wear -resistant liner's cyclone barrel | |
| CN214327770U (en) | Belly pipe device | |
| CN205279075U (en) | Cyclone burner with abrasionproof wind | |
| CN104209256A (en) | Construction method of high-temperature-resistant absorption enhanced nanometer coating | |
| CN208455047U (en) | A kind of fuming furnace nozzle of Wear-resistant, high-temperature resistant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181225 Address after: 610041 Shuangnan Section 118 Wuhou Mountain Villa B5, Wuhou Avenue, Chengdu City, Sichuan Province Patentee after: Sichuan Metallurgical Equipment Development Co Ltd Address before: 610041 Shuangnan Section 118 Wuhou Mountain Villa B5, Wuhou Avenue, Chengdu City, Sichuan Province Patentee before: Zhang Lu |