CN203771986U - Hearth structure of corrosion area of vanadium-nitrogen alloy sintering pushed slab kiln - Google Patents
Hearth structure of corrosion area of vanadium-nitrogen alloy sintering pushed slab kiln Download PDFInfo
- Publication number
- CN203771986U CN203771986U CN201420133652.8U CN201420133652U CN203771986U CN 203771986 U CN203771986 U CN 203771986U CN 201420133652 U CN201420133652 U CN 201420133652U CN 203771986 U CN203771986 U CN 203771986U
- Authority
- CN
- China
- Prior art keywords
- kiln
- kiln body
- vanadium
- smoke
- nitrogen alloy
- 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
- 230000007797 corrosion Effects 0.000 title claims abstract description 17
- 238000005260 corrosion Methods 0.000 title claims abstract description 17
- 229910001199 N alloy Inorganic materials 0.000 title claims abstract description 15
- SKKMWRVAJNPLFY-UHFFFAOYSA-N azanylidynevanadium Chemical compound [V]#N SKKMWRVAJNPLFY-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000005245 sintering Methods 0.000 title claims abstract description 15
- 239000011449 brick Substances 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 13
- 235000019504 cigarettes Nutrition 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 230000008021 deposition Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- Furnace Details (AREA)
Abstract
The utility model relates to a hearth structure of a corrosion area of a vanadium-nitrogen alloy sintering pushed slab kiln. The hearth structure comprises a kiln body, a plurality of temperature areas and a kiln cavity, wherein the temperature areas are arranged in the kiln body along the length direction, and the kiln cavity is arranged on the lower portion inside the kiln body. Smoke evacuation passages are arranged between the adjacent temperature areas, hearth crown bricks are built between the temperature areas and the kiln cavity, smoke inlets of the smoke evacuation passages are arranged on the hearth crown bricks, and smoke outlets of the smoke evacuation passages are arranged on the top surface of the kiln body. The smoke inlets of the smoke evacuation passages are flared with big end up, and the bottom surfaces of the hearth crown bricks are provided with smoke baffle parts preventing smoke from flowing along the width direction of the kiln body. By the hearth structure of the corrosion area of the vanadium-nitrogen alloy sintering pushed slab kiln, discharge speed of corrosive gas is increased, carbon gas flow of the low-temperature areas can be reduced and chemical compound deposition can be thereby reduced. Besides, the hearth structure is simple and low in construction cost, service lives of heating elements can be prolonged after use of the hearth structure, equipment performance is stable and reliability is increased.
Description
Technical field
The utility model relates to the vanadium-nitrogen alloy sintering pushed bat kiln in VN alloy field, is specially a kind of vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure.
Background technology
At present, require heating raw materials to 1500 DEG C left and right high temperature and pass into nitrogen nitrogenize when vanadium-nitrogen alloy sintering pushed bat kiln is produced, the chamber structure in 700 DEG C ~ 1100 DEG C severe corrosive gaseous volatilization districts is key issues.In prior art, generally just adopt the version of erosion-resisting magnesian flat-top, and exhaust opening is set gas is discharged.The problem occurring like this has: flow from high-temperature region toward low-temperature space under furnace pressure field action at the carbon air-flow of separating out higher than the reaction zone of 1100 DEG C, converge in etchant gas volatilization district and etchant gas, be difficult to discharge, form Compound deposition phenomenon, cause heating element heater frequently to rupture, the major accident that even burner hearth stops up.
Summary of the invention
The purpose of this utility model is, for the deficiencies in the prior art, provides a kind of vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure, increase the velocity of discharge of etchant gas, reduce the carbon air flow rate that flows to low-temperature space, thereby reduce Compound deposition, extend the life-span of heating element heater.
The technical solution of the utility model is, a kind of vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure, comprise the furnace chamber of bottom in multiple warm areas that kiln body, kiln body internal upper part arrange along kiln body length direction, kiln body, between adjacent warm area, be provided with discharge flue, between described warm area and furnace chamber, build burner hearth dome brick by laying bricks or stones, the smoke inlet of discharge flue is located at burner hearth dome brick position, and the exhanst gas outlet of discharge flue is located at kiln body end face, and the smoke inlet of described discharge flue is low wide and up narrow tubaeform; The bottom surface of described burner hearth dome brick is provided with the resistance cigarette parts that hinder flow of flue gas along kiln body width.
This agglomerating plant pushed bat kiln temperature range of producing continuously VN alloy is 700 DEG C～1100 DEG C, be corrosion region across the 5th in pushed bat kiln to the 7th warm area, the smoke inlet of discharge flue is built by laying bricks or stones by arc magnesia brick, open-minded from burner hearth dome brick, until kiln top, the path of passage is φ 80mm～φ 180mm, and horn mouth height is 100mm～150mm, and the ratio of large path is between 1.5～2.Because discharge flue entrance is horn-like, when longitudinal air flow is turned through smoke inlet, resistance reduces, and air-flow convolution reduces, and can effectively prevent that the discharge that the reduction of this district's air-flow velocity of discharge causes from having some setbacks.Corrosion region important segment resistance cigarette parts, can reduce high-temperature region carbon dust and flow to the amount of flow of low-temperature space.
Air channel brick is set up in exhanst gas outlet periphery, described kiln body end face outer, and the rear end face of air channel brick tilts to kiln body rear end to the front end face of the inclination of kiln body front end or air channel brick, the front/rear end direction of air channel brick is consistent with the front and back end direction of whole kiln body, air channel brick rear end face outside discharge flue between 5-7 warm area tilts to kiln body front end, make to corrode air-flow and forward flow, discharge fast; Air channel brick front end face outside discharge flue between the 7th warm area and the 8th warm area tilts to kiln body rear end, before carbon dust stream and corrosion air-flow are converged, discharges a large amount of carbon dust stream.
The intersection of the smoke inlet of described discharge flue and burner hearth dome brick is arc, and when air-flow is turned through smoke inlet, resistance reduces.
Resistance cigarette parts can be set to fore shaft, and the length of described resistance cigarette parts is 300mm～460mm, and width is 50mm～100mm.
The utility model is a kind of vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure, increases the velocity of discharge of etchant gas, reduces the carbon air flow rate that flows to low-temperature space, thereby reduces Compound deposition.This is simple in structure, and implementation cost is lower, heating element heater life after using, and equipment performance is stable, and reliability increases.
Brief description of the drawings
Fig. 1 is the part-structure schematic diagram of burner hearth described in the utility model;
Fig. 2 is A-A schematic cross-section in Fig. 1.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, a kind of vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure, comprise kiln body, the furnace chamber 6 of bottom in kiln body, the 6th warm area 10 that kiln body internal upper part arranges along kiln body length direction, the 7th warm area 11, the 8th warm area 12 is warm areas adjacent with the 7th warm area 11, but do not belong to corrosion region, filling heat insulation preservation material 9 in warm area, between adjacent warm area, be provided with discharge flue, furnace chamber 6 bottom mounting guide rails 5, guide rail 5 is provided with push pedal 4, furnace chamber 6 tops are provided with crucible altitude line 7 along kiln body length direction, the 6th warm area 10, the 7th warm area 11, between the 8th warm area 12 and furnace chamber 6, build burner hearth dome brick 8 by laying bricks or stones, the smoke inlet 1 of discharge flue is located at burner hearth dome brick 8 positions, and the exhanst gas outlet 13 of discharge flue is located at kiln body end face, the smoke inlet 1 of discharge flue is low wide and up narrow tubaeform, and the smoke inlet 1 of discharge flue is arc with the intersection of burner hearth dome brick 8, the bottom surface of described burner hearth dome brick 8 is provided with the resistance cigarette parts 3 that hinder flow of flue gas along kiln body width.
Air channel brick 2 is set up in exhanst gas outlet 13 peripheries, kiln body end face outer, and the rear end face of air channel brick 2 between the 6th warm area 10 and the 7th warm area 11 tilts to kiln body front end, and the front end face of air channel brick 2 between the 7th warm area 11 and the 8th warm area 12 tilts to kiln body rear end.
Resistance cigarette parts 3 are fore shaft, and its length is 300mm, and width is 50mm.
Claims (4)
1. a vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure, comprise multiple warm areas (10 that kiln body, kiln body internal upper part arrange along kiln body length direction, 11), the furnace chamber (6) of bottom in kiln body, between adjacent warm area, be provided with discharge flue, it is characterized in that, described warm area (10,11) and between furnace chamber (6), build burner hearth dome brick (8) by laying bricks or stones, the smoke inlet (1) of discharge flue is located at burner hearth dome brick (8) position, and the exhanst gas outlet of discharge flue (13) is located at kiln body end face, the smoke inlet of described discharge flue (1) is low wide and up narrow tubaeform; The bottom surface of described burner hearth dome brick (8) is provided with the resistance cigarette parts (3) that hinder flow of flue gas along kiln body width.
2. vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure according to claim 1, it is characterized in that, air channel brick (2) is set up in described kiln body end face outer exhanst gas outlet (13) periphery, and the rear end face of air channel brick (2) tilts to kiln body rear end to the front end face of the inclination of kiln body front end or air channel brick (2).
3. according to vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure described in claim 1 or 2, it is characterized in that, the smoke inlet (1) of described discharge flue is arc with the intersection of burner hearth dome brick (8).
4. according to vanadium-nitrogen alloy sintering pushed bat kiln corrosion region chamber structure described in claim 1 or 2, it is characterized in that, the length of described resistance cigarette parts (3) is 300mm～460mm, and width is 50mm～100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133652.8U CN203771986U (en) | 2014-03-24 | 2014-03-24 | Hearth structure of corrosion area of vanadium-nitrogen alloy sintering pushed slab kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420133652.8U CN203771986U (en) | 2014-03-24 | 2014-03-24 | Hearth structure of corrosion area of vanadium-nitrogen alloy sintering pushed slab kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203771986U true CN203771986U (en) | 2014-08-13 |
Family
ID=51289171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420133652.8U Expired - Lifetime CN203771986U (en) | 2014-03-24 | 2014-03-24 | Hearth structure of corrosion area of vanadium-nitrogen alloy sintering pushed slab kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203771986U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421324A (en) * | 2017-07-24 | 2017-12-01 | 湖南众鑫新材料科技股份有限公司 | A kind of dou-ble-pusher kiln for producing ferrovanadium nitride |
| CN112539651A (en) * | 2020-11-02 | 2021-03-23 | 无锡中工热控科技有限公司 | Partition beam top brick and push plate furnace exhaust device |
-
2014
- 2014-03-24 CN CN201420133652.8U patent/CN203771986U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421324A (en) * | 2017-07-24 | 2017-12-01 | 湖南众鑫新材料科技股份有限公司 | A kind of dou-ble-pusher kiln for producing ferrovanadium nitride |
| CN107421324B (en) * | 2017-07-24 | 2019-06-04 | 湖南众鑫新材料科技股份有限公司 | A kind of dou-ble-pusher kiln producing ferrovanadium nitride |
| CN112539651A (en) * | 2020-11-02 | 2021-03-23 | 无锡中工热控科技有限公司 | Partition beam top brick and push plate furnace exhaust device |
| CN112539651B (en) * | 2020-11-02 | 2023-03-03 | 无锡中工热控科技有限公司 | Partition beam top brick and push plate furnace exhaust device |
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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: 20201201 Address after: 410000, 1 / F, microelectronic equipment center building, 1025 xinkaipu Road, Changsha City, Hunan Province Patentee after: Hunan ShuoKe thermal Intelligent Equipment Co.,Ltd. Address before: 410111, No. 1025, paving road, Tianxin District, Hunan, Changsha Patentee before: 48TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY Group Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |