CN201152680Y - High-temperature nitrogen atmosphere agglutinating kiln burning vanadium pentoxide into vanadium-nitrogen alloy - Google Patents
High-temperature nitrogen atmosphere agglutinating kiln burning vanadium pentoxide into vanadium-nitrogen alloy Download PDFInfo
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- CN201152680Y CN201152680Y CNU2007200650429U CN200720065042U CN201152680Y CN 201152680 Y CN201152680 Y CN 201152680Y CN U2007200650429 U CNU2007200650429 U CN U2007200650429U CN 200720065042 U CN200720065042 U CN 200720065042U CN 201152680 Y CN201152680 Y CN 201152680Y
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Abstract
The utility model relates to a high-temperature nitrogen-atmosphere sintering kiln that adopts V2O5 to be sintered into vanadium-nitrogen alloy; a kiln body consists of a low-temperature section, a heating-up section, a high-temperature section and a cooling-down section; a kiln cavity that is arranged between two outer side wall bodies of the heating-up section is provided with a bottom lining; both sides of the heating-up section are provided with a heating chamber; the top of the kiln cavity is provided with a top lining of a discharging port; a guide rail is arranged on the bottom lining; guiding edges that are arranged at the inner sides of the heating chambers are mounted on the bottom lining; all structures assembling the kiln body of the heating-up section are made of electrically fused magnesite bricks; the bottom of the kiln body at the high-temperature section is provided with another bottom lining; two sides of a kiln cavity that is arranged between two outer side wall bodies of the high-temperature section are respectively provided with a heating chamber; the top of the kiln cavity is provided with a top lining; a supporting element is arranged on the bottom lining and is arranged at the lower part of the kiln cavity; a kiln lining board is arranged on the top part of the supporting element; all structures assembling the kiln body of the high-temperature section are made of graphite. The sintering kiln can realize the industrialization production adopting the V2O5 to be sintered into VN for one time; the running of the device is reliable and stable.
Description
Technical field
The utility model relates to vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven, further is meant the furnace binding of high temperature nitrogen atmosphere sintering oven.
Background technology
Along with the application of VN alloy at steel grades such as HRB400Mpa, 500Mpa grade reinforcing steel, the big beam slab of P510L, N80 non-tempering petroleum sleeve pipe, 09V310 Yi shape steel and high-speed tool steels, VN alloy year the growth rate of demand more than 40%, industry enters the stage of a fast development in great demand.China's VN alloy sintering process equipment has two kinds now, i.e. vanadium trioxide once-firing equipment and vanadic anhydride twice firing equipment.
The vanadium trioxide raw material can't be buied from market, and the power consumption and the human cost of vanadic anhydride twice firing are higher, and is vigorous to vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven device requirement.Reach the requirement of vanadic anhydride once-firing VN alloy, have following problem to need to solve: (1) will guarantee to displace V fully with C and N under high temperature nitrogen atmosphere in the section that heats up
2O
5In oxygen form VC and two kinds of compounds of VN and despumation; (2) guarantee the requirement of apparent density in high temperature section; (3) in temperature descending section design single-stage nitriding district, guarantee the product nitrogen content requirement.
The utility model content
The technical problems to be solved in the utility model is that the defective at prior art exists proposes a kind of vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven, can realize by V
2O
5The suitability for industrialized production of once sintered generation VN, equipment is reliable, steady.
The technical solution of the utility model is, the kiln body of described vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven is made up of low-temperature zone, the section that heats up, high temperature section, temperature descending section successively, and its design feature is:
A. the described structure that heats up section is: end liner is equipped with in the bottom, kiln chamber outside the both sides between the body of wall, these both sides, kiln chamber are respectively heating clamber, the heating clamber top of described kiln chamber and its both sides is the roof liner that is provided with exhaust outlet, at least two guide rails installing along the kiln length direction are contained on the described end liner, guide edge also is installed on the described end liner between described guide rail and heating clamber inboard, and described each structure of forming the section kiln body that heats up all adopts electrically fused magnesite brick to make;
B. the structure of described high temperature section is: end liner is equipped with in described kiln body bottom, and the both sides, kiln chamber between the body of wall are respectively heating clamber outside the both sides, the heating clamber top of described kiln chamber and its both sides is a roof liner, the support member that is positioned at described two heating clamber inboards is contained on the described end liner and is positioned at bottom, described kiln chamber, the furnace lining plate is installed in this support member top, and described each structure of forming this high temperature section kiln body all adopts graphite piece to make.
Below the utility model made further specify.
Referring to Fig. 1 to Fig. 3, the kiln body of vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven of the present utility model is made up of low-temperature zone, the section that heats up, high temperature section, temperature descending section successively, and its design feature is:
A. the described structure that heats up section is: end liner 1 is equipped with in 8 bottoms, kiln chamber outside the both sides between the body of wall 5, these 8 both sides, kiln chamber are respectively heating clamber 4, heating clamber 4 tops of described kiln chamber 8 and its both sides are the roof liner 6 that is provided with exhaust outlet 7, at least two guide rails 2 of installing along the kiln length direction are contained on the described end liner 1, also be installed on the described end liner 1 at guide edge 3 between described guide rail and the heating clamber inboard, described each structure of forming the section kiln body that heats up all adopts electrically fused magnesite brick to make;
B. the structure of described high temperature section is: end liner 11 is equipped with in described kiln body bottom, and 16 both sides, kiln chamber between the body of wall 17 are respectively heating clamber 14 outside the both sides, heating clamber 14 tops of described kiln chamber 16 and its both sides are roof liner 15, the support member 12 that is positioned at described two heating clambers 14 inboards is contained on the described end liner 11 and is positioned at 16 bottoms, described kiln chamber, furnace lining plate 13 is installed in this support member 12 tops, and described each structure of forming this high temperature section kiln body all adopts graphite piece to make.
In the utility model, when product passed through intensification section shown in Figure 2, vanadium oxide and carbon reaction generated vanadium carbide and carbon monoxide; By intensification section kiln body section structure shown in Figure 2 as can be known, guide rail 2, guide edge 3 are built and can guaranteed on the end liner 1 that push pedal is steadily mobile on guide rail 2, calandria is built on end liner 1 therein and installed to heating chamber 4, roof liner 6 is installed in and forms the product access way on the heating chamber 4, and exhaust outlet 7 is installed in the gas that produces in order to the discharging sintering on the roof liner 6.Temperature, atmosphere and corrosive medium according to this section, and in the past at this section various refractory materials on probation, the utility model is selected the structural material of electrically fused magnesite brick (FRMZ-97) as this section (650 ℃～1100 ℃ sections) for use, under the prerequisite that fully satisfies the VN alloy sintering process, suitably increase the inlet and outlet amount in this district, increase exhaust outlet 7 in this section appropriate location, can generate the corrosion that the coating similar to corrosion thing composition slowed down liner on the brick surface, what can guarantee like this to react normally carries out, and can drop to the erosion to inner lining material minimum again.
Fig. 2 represents the kiln body section structure of high temperature section (1100～1520 ℃ of nitrogenize sections), this structure and select for use graphite to make inner lining material, even through the calcination of superelevation electric arc, the loss of weight is very little, and thermal coefficient of expansion is also very little, is able to take the acute variation of temperature when at high temperature using and unlikely destruction, during temperature jump, Volume Changes is little, also can not crack, and satisfies the requirement of this zone temperatures fully.And, support member 12, furnace bed board 13 blocks are being guaranteed on the end liner 11 that push pedal is steadily mobile on furnace bed board 13, heating chamber 14 is built and lay calandria on end liner 11, and roof liner 15 is installed in and forms the product access way on the heating chamber 14.
As known from the above, the utility model is a kind of vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven, and it can be realized by V
2O
5The suitability for industrialized production of once sintered generation VN after configuration outer circulation automatic control system, temperature control system, has guaranteed the reliable, steady of equipment operation
Description of drawings
Fig. 1 is a kind of embodiment overall structure of the utility model schematic diagram;
Fig. 2 is the cross section structure schematic diagram of kiln body intensification section among Fig. 1;
Fig. 3 is the cross section structure schematic diagram of kiln body high temperature section among Fig. 1.
In the drawings:
The 1-end liner, the 2-track, the 3-guide edge,
The 4-heating clamber, the outer body of wall of 5-, the 6-roof liner,
The 7-exhaust outlet, 8-kiln chamber, the 11-end liner,
The 12-support member, the 13-furnace bed board, the 14-heating clamber,
The 15-roof liner, 16-kiln chamber.
The specific embodiment
Referring to Fig. 1 to 3, the kiln body of vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven of the present utility model is made up of low-temperature zone, the section that heats up, high temperature section, temperature descending section successively, wherein:
A. the described structure that heats up section is: end liner 1 is equipped with in 8 bottoms, kiln chamber outside the both sides between the body of wall 5, these 8 both sides, kiln chamber are respectively heating clamber 4, heating clamber 4 tops of described kiln chamber 8 and its both sides are the roof liner 6 that is provided with exhaust outlet 7, at least two guide rails 2 of installing along the kiln length direction are contained on the described end liner 1, also be installed on the described end liner 1 at guide edge 3 between described guide rail and the heating clamber inboard, described each structure of forming the section kiln body that heats up all adopts electrically fused magnesite brick FRMZ-97 to make;
B. the structure of described high temperature section is: end liner 11 is equipped with in described kiln body bottom, and 16 both sides, kiln chamber between the body of wall 17 are respectively heating clamber 14 outside the both sides, heating clamber 14 tops of described kiln chamber 16 and its both sides are roof liner 15, the support member 12 that is positioned at described two heating clambers 14 inboards is contained on the described end liner 11 and is positioned at 16 bottoms, described kiln chamber, furnace lining plate 13 is installed in this support member 12 tops, and described each structure of forming this high temperature section kiln body all adopts graphite piece LG180-95 to make.
Claims (1)
1, a kind of vanadic anhydride once-firing VN alloy high temperature nitrogen atmosphere sintering oven, kiln body are made up of low-temperature zone, the section that heats up, high temperature section, temperature descending section successively, it is characterized in that:
A. the described structure that heats up section is: end liner (1) is equipped with in the bottom, kiln chamber (8) between the body of wall outside the both sides (5), these both sides, kiln chamber (8) are respectively heating clamber (4), heating clamber (4) top of described kiln chamber (8) and its both sides is for being provided with the roof liner (6) of exhaust outlet (7), at least two guide rails (2) of installing along the kiln length direction are contained on the described end liner (1), also be installed on the described end liner (1) at guide edge (3) between described guide rail and the heating clamber inboard, described each structure of forming the section kiln body that heats up all adopts electrically fused magnesite brick to make;
B. the structure of described high temperature section is: end liner (11) is equipped with in described kiln body bottom, and the both sides, kiln chamber (16) between the body of wall (17) are respectively heating clamber (14) outside the both sides, heating clamber (14) top of described kiln chamber (16) and its both sides is roof liner (15), being positioned at the inboard support member (12) of described two heating clambers (14) is contained in described end liner (11) and goes up and be positioned at bottom, described kiln chamber (16), furnace lining plate (13) is installed in this support member (12) top, and described each structure of forming this high temperature section kiln body all adopts graphite piece to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200650429U CN201152680Y (en) | 2007-11-12 | 2007-11-12 | High-temperature nitrogen atmosphere agglutinating kiln burning vanadium pentoxide into vanadium-nitrogen alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200650429U CN201152680Y (en) | 2007-11-12 | 2007-11-12 | High-temperature nitrogen atmosphere agglutinating kiln burning vanadium pentoxide into vanadium-nitrogen alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152680Y true CN201152680Y (en) | 2008-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200650429U Expired - Fee Related CN201152680Y (en) | 2007-11-12 | 2007-11-12 | High-temperature nitrogen atmosphere agglutinating kiln burning vanadium pentoxide into vanadium-nitrogen alloy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798640B (en) * | 2010-02-08 | 2011-05-25 | 杭州中赢科技有限公司 | Heating device for producing vanadium-nitrogen alloy |
| CN103727783A (en) * | 2014-01-10 | 2014-04-16 | 四川展祥特种合金科技有限公司 | Vertical type vanadium-nitrogen alloy calcining kiln utilizing waste gas carbon monoxide |
| CN105202910A (en) * | 2015-09-08 | 2015-12-30 | 苏州博涛机电设备有限公司 | Roller furnace with high power and low energy consumption |
-
2007
- 2007-11-12 CN CNU2007200650429U patent/CN201152680Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798640B (en) * | 2010-02-08 | 2011-05-25 | 杭州中赢科技有限公司 | Heating device for producing vanadium-nitrogen alloy |
| CN103727783A (en) * | 2014-01-10 | 2014-04-16 | 四川展祥特种合金科技有限公司 | Vertical type vanadium-nitrogen alloy calcining kiln utilizing waste gas carbon monoxide |
| CN103727783B (en) * | 2014-01-10 | 2015-05-20 | 四川展祥特种合金科技有限公司 | Vertical type vanadium-nitrogen alloy calcining kiln utilizing waste gas carbon monoxide |
| CN105202910A (en) * | 2015-09-08 | 2015-12-30 | 苏州博涛机电设备有限公司 | Roller furnace with high power and low energy consumption |
| CN105202910B (en) * | 2015-09-08 | 2017-09-29 | 苏州博涛机电设备有限公司 | A kind of high power low power consuming roller furnace |
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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: 20081119 Termination date: 20091214 |