CN203878192U - Apparatus for continuously preparing vanadium-nitrogen alloy - Google Patents
Apparatus for continuously preparing vanadium-nitrogen alloy Download PDFInfo
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- CN203878192U CN203878192U CN201420319209.XU CN201420319209U CN203878192U CN 203878192 U CN203878192 U CN 203878192U CN 201420319209 U CN201420319209 U CN 201420319209U CN 203878192 U CN203878192 U CN 203878192U
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Abstract
The utility model discloses an apparatus for continuously preparing a vanadium-nitrogen alloy. The apparatus comprises a vertical furnace body, a top fee bin (1) and a continuous automatic discharge device (2); the vertical furnace body is composed of a preheating section (3), a calcination section (4) and a cooling section (5), all of which are orderly communicated with each other from top to bottom; the lower end of the vertical furnace body is connected with the continuous automatic discharge device (2) by use of a pipeline; the tail end of the automatic discharge device is connected to a finished product car (20) by use of a discharge pipe (18); and a nitrogen inlet (21) for blowing nitrogen into the vertical furnace body is formed in the bottom of the vertical furnace body. The apparatus has the beneficial effects of compact and simple apparatus, short production flow, electric energy conservation, greatly reduced investment, greatly improved production efficiency, and obviously shortened nitridation and carbonization time; the production cost can be greatly reduced; and the apparatus is capable of well meeting the industrial, large-scale production requirements.
Description
Technical field
The utility model relates to VN alloy preparing technical field, particularly a kind of equipment of continuous production VN alloy.
Background technology
VN alloy is a kind of steel-making additive of novel, high-quality, can substitute vanadium iron for the production of microalloyed steel.Vanadium nitride makes an addition to the comprehensive mechanical performances such as intensity, toughness, ductility and thermal fatigue resistance that can improve steel in steel, and makes steel have good weldability.Reaching under same intensity, adding vanadium nitride and save vanadium add-on 30～40%, and then reduced cost.
But the production of VN alloy is at present subject to technology and equipment restriction, its output and cost are always higher, and for example conventional furnace apparatus in the market, needs the carrying out heating of stove one stove to fire during production, owing to being subject to the restriction of heat-up time, its production efficiency is difficult to improve.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provides that a kind of continous way production, less investment, output are high, the equipment of continuous production VN alloy.
The purpose of this utility model is achieved through the following technical solutions: a kind of equipment of continuous production VN alloy, it comprises vertical furnace, its top feed storehouse and continuously automatic discharge apparatus, described vertical furnace is by the preheating section along direction is communicated with successively from top to bottom, calcining section and cooling section form, preheating section is followed successively by high temperature resistant packing layer and the high temperature resistant furnace lining of building along direction from outside to inside, calcining section is comprised of the top calcining section along direction is communicated with successively from top to bottom and bottom calcining section, calcining section in top is suitable with bottom calcining section length in vertical direction, calcining section in top is followed successively by ruhmkorff coil along direction from outside to inside, high temperature resistant packing layer, high temperature resistant furnace lining and the carbon lining of building, calcining section in bottom is followed successively by ruhmkorff coil along direction from outside to inside, high temperature resistant packing layer and the high temperature resistant furnace lining of building, cooling section is followed successively by cooling jacket along direction from outside to inside, high temperature resistant packing layer and the high temperature resistant furnace lining of building, on cooling jacket, be provided with entrance of cooling water and cooling water outlet, in the calcining section of vertical furnace, be provided with thermocouple temperature measurement instrument and infrared thermometer, its top feed storehouse is arranged at the top of vertical furnace, and the discharge port in its top feed storehouse is communicated with the furnace chamber of vertical furnace, on the sidewall on top, its top feed storehouse, be provided with the air outlet that is communicated with internal space, its top feed storehouse, the lower end of vertical furnace connects continuous automatic discharge apparatus by pipeline, the tapping channel that is positioned at continuous automatic discharge apparatus end is provided with the tooth-like drawing mechanism of roller, the end of automatic discharge apparatus is also connected with discharge nozzle, the discharge end of discharge nozzle is connected with the opening for feed of finished car, the bottom of vertical furnace is provided with for blast the nitrogen inlet mouth of nitrogen to vertical furnace inside.
Described thermocouple temperature measurement instrument and infrared thermometer are arranged at the top calcining section of calcining section.
The utlity model has following advantage: the utility model be take Vanadium Pentoxide in FLAKES or vanadous oxide and graphite as raw material, makes after spherical material, add in medium-frequency induction furnace, at nitrogen atmosphere 15～18m
3/ h, heat up 1350～1550 ℃, through preheating section, calcining section, the cooling section of vertical intermediate frequency induction heater, carry out after abundant nitrogenize, carbonizing reduction reaction, realized continuously and added spherical blank at furnace roof, at bottom discharge mouth, continuously produced out qualified VN alloy.
The utility model is that continous way is produced, and serviceability is high, good product consistency; Easy and simple to handle, maintenance speed is fast, significantly saves maintenance cost and servicing time, and overhaul is once no more than 24 hours; Finished car can store 1 ton of product, car and discharge port buckle press seal, and one-pass finished car is changed in per tour, does not need frequent movement, has guaranteed system sealing.During replacing, seal valve is closed discharge port is sealed.
The utility model facility compact is simple, Production Flow Chart is short; save electric energy; more existing pushed bat kiln, tunnel furnace and similar vertical kiln etc. have that investment significantly reduces, production efficiency increases substantially, nitrogenize and carbonization time obviously shorten advantage, can significantly reduce production costs, therefore; be applicable to very much industrialization, large-scale production requirement; and less investment, output is high, reaches 3 tons/day; really realized continuous production, material moves down speed and reaches 30 mm/min in burner hearth.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
In figure, 1-its top feed storehouse, the continuous automatic discharge apparatus of 2-, 3-preheating section, 4-calcines section, 5-cooling section, and 6-is high temperature resistant packing layer, 7-is high temperature resistant builds furnace lining, 8-top calcining section, 9-bottom calcining section, 10-ruhmkorff coil, 11-carbon lining, 12-cooling jacket, 13-entrance of cooling water, 14-cooling water outlet, 15-air outlet, 16-seal closure, the tooth-like drawing mechanism of 17-roller, 18-discharge nozzle, 19-sealing compresses fastener, 20-finished car, 21-nitrogen inlet mouth.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, a kind of equipment of continuous production VN alloy, it comprises vertical furnace, its top feed storehouse 1 and continuously automatic discharge apparatus 2, described vertical furnace is by the preheating section 3 along direction is communicated with successively from top to bottom, calcining section 4 and cooling section 5 form, preheating section 3, calcining section 4 and cooling section 5 can be sectional type, between adjacent sectional, with flange and sealing-ring, compress and guarantee sealing, the furnace chamber of vertical furnace is vertical channel, preheating section 3 is followed successively by high temperature resistant packing layer 6 and the high temperature resistant furnace lining 7 of building along direction from outside to inside, calcining section 4 is comprised of the top calcining section 8 along direction is communicated with successively from top to bottom and bottom calcining section 9, calcining section 8 in top is suitable with bottom calcining section 9 length in vertical direction, top calcining section 8 is followed successively by ruhmkorff coil 10 along direction from outside to inside, high temperature resistant packing layer 6, high temperature resistant furnace lining 7 and the carbon lining 11 of building, carbon lining 11 efficiently solves in the region of material poor electric conductivity also can use heating in medium frequency, overcome in this region by the defect of resistance or the heating of other ways, bottom calcining section 9 is followed successively by ruhmkorff coil 10 along direction from outside to inside, high temperature resistant packing layer 6 and the high temperature resistant furnace lining 7 of building, bottom calcining section 9 just takes full advantage of the conductive characteristic of furnace charge self, become induced current heating carrier, realized significantly low object of sintered products energy consumption, VN alloy power consumption per ton is not more than 4500 degree, cooling section 5 is followed successively by cooling jacket 12 along direction from outside to inside, high temperature resistant packing layer 6 and the high temperature resistant furnace lining 7 of building, on cooling jacket 12, be provided with entrance of cooling water 13 and cooling water outlet 14, in the calcining section 4 of vertical furnace, be provided with thermocouple temperature measurement instrument and infrared thermometer, its top feed storehouse 1 is back taper, its top feed storehouse 1 is arranged at the top of vertical furnace, and the discharge port in its top feed storehouse 1 is communicated with the furnace chamber of vertical furnace, on the sidewall on 1 top, its top feed storehouse, be provided with the air outlet 15 that is communicated with 1 internal space, its top feed storehouse, preferably, the seal closure 16 of capping its top feed storehouse 1 upper shed can be set at the top in its top feed storehouse 1, the lower end of vertical furnace connects continuous automatic discharge apparatus 2 by pipeline, preferably, tapping channel in continuous automatic discharge apparatus 2 can be obliquely installed, make to there is angle between tapping channel in continuous automatic discharge apparatus 2 and vertical direction, this angle can be 10～30 °, preferred this angle is 15 °, the sidewall that is arranged so that tapping channel of this angle has effectively decomposed material and has directly been pressed in the pressure on roller tooth, the tapping channel that is positioned at continuous automatic discharge apparatus 2 ends is provided with the tooth-like drawing mechanism 17 of roller, the end of automatic discharge apparatus is also connected with discharge nozzle 18, the feed end of discharge nozzle 18 connects the end of automatic discharge apparatus, preferably, can seal valve be set at discharge nozzle 18 and the connection section of automatic discharge apparatus, and be provided with sealing compression fastener 19 at the discharge end of discharge nozzle 18, the discharge end of discharge nozzle 18 is connected with the opening for feed of finished car 20, the opening for feed of described finished car 20 is tubular for what match with discharge nozzle 18, when sealing compression fastener 19 is set, between the opening for feed of the discharge end of discharge nozzle 18 and finished car 20, by sealing, compress fastener 19 sealings, the bottom of vertical furnace is provided with for blast the nitrogen inlet mouth 21 of nitrogen to vertical furnace inside, in the present embodiment, nitrogen inlet mouth 21 is arranged at the top of continuous automatic discharge apparatus 2, but it can be arranged on the pipeline that connects vertical furnace and continuous automatic discharge apparatus 2 equally, or be arranged at the bottom of vertical furnace body.
Thermocouple temperature measurement instrument and infrared thermometer are arranged at the top calcining section 8 of calcining section 4.
It also comprises intermediate frequency power cabinet, and intermediate frequency power cabinet is connected with ruhmkorff coil 10, and sintering temperature adopts PID to control, and numeral shows to have and control accurately and temperature feature easy to adjust.
The high temperature resistant packing layer 6 of described vertical furnace refers to and adopts high-temperature resistant particle to fill the packing layer of making.
The method that adopts aforesaid device continuous production VN alloy, it comprises the following steps:
S1, batching: take the raw material of following weight parts, standby:
Vanadium pentoxide powder 100;
Graphite Powder 99 25～35;
Nitrogenize promotor 4～6;
Sodium silicate aqueous solution 8～12;
Iron powder 1～2;
S2, batch mixing and base: above-mentioned raw materials is put into stirrer for mixing even, put into afterwards pair roller type pressed compact equipment, material is pressed into oblate spheroid shape, be positioned over ventilation seasoning three days, be dried to oblate spheroid shape material moisture lower than 6%;
S3, reinforced: moisture is positioned in hopper lower than 6% oblate spheroid shape material, hopper is transported in its top feed storehouse 1 of vertical furnace with lifting gear, after filling it up with feed bin, build seal closure 16;
S4, preheating and prereduction: at the preheating section 3 of vertical furnace, utilize furnace gas heat to make heating material, along with temperature of charge raises, between 950～1250 ℃, material generation carbonization, nitrogenize prereduction reaction;
S5, carbonization, nitridation sintered: keep calcining section 4 internal temperatures of vertical furnace at 1350～1550 ℃, at this temperature, material moves down with the speed limit of 30 mm/min, degree of depth carbonization, nitrogenizing reaction are carried out 2.5～3.5 hours in limit, in production run process, to keep continuing to be filled with purity>=99.99% nitrogen, nitrogen pressure is controlled at 0.3MPa, and nitrogen flow is controlled at 15～18m
3/ h;
S6, discharging: nitridation sintered good product, through the cooling section 5 of vertical furnace force cooling make temperature be down to 60 ℃ below after, finished car 20 bottom falling into continuously; While changing finished car 20, first will close seal valve seals discharge port, the operation of stop roller tooth drawing mechanism, open sealing and compress fastener 19, remove the finished car 20 that product is housed, change another finished car 20, then with sealing, compress fastener 19 and car is connected with discharge port and seals, open roller tooth discharging machine, open seal valve; Qualified VN alloy in finished car 20 is packed to warehouse-in on request.
Described vanadium pentoxide powder is content >=98%, granularity≤100 object vanadium pentoxide powder.
Described Graphite Powder 99 is purity >=98%, granularity≤60 object Graphite Powder 99.、
Described nitrogenize promotor is one or both mixtures in urea, trimeric cyanamide.
The concentration of described sodium silicate aqueous solution is 15 ~ 20%.
Equipment of the present utility model is that continous way is produced, and serviceability is high, good product consistency; Easy and simple to handle, maintenance speed is fast, significantly saves maintenance cost and servicing time, and overhaul is once no more than 24 hours; Finished car 20 can store 1 ton of product, car and discharge port buckle press seal, and one-pass finished car 20 is changed in per tour, does not need frequent movement, has guaranteed system sealing.During replacing, seal valve is closed discharge port is sealed.
Claims (2)
1. the equipment of a continuous production VN alloy, it is characterized in that: it comprises vertical furnace, its top feed storehouse (1) and continuously automatic discharge apparatus (2), described vertical furnace is by the preheating section (3) along direction is communicated with successively from top to bottom, calcining section (4) and cooling section (5) form, preheating section (3) is followed successively by high temperature resistant packing layer (6) and the high temperature resistant furnace lining (7) of building along direction from outside to inside, calcining section (4) is comprised of the top calcining section (8) along direction is communicated with successively from top to bottom and bottom calcining section (9), top calcining section (8) is suitable with bottom calcining section (9) length in vertical direction, top calcining section (8) is followed successively by ruhmkorff coil (10) along direction from outside to inside, high temperature resistant packing layer (6), high temperature resistant furnace lining (7) and the carbon lining (11) of building, bottom calcining section (9) is followed successively by ruhmkorff coil (10) along direction from outside to inside, high temperature resistant packing layer (6) and the high temperature resistant furnace lining (7) of building, cooling section (5) is followed successively by cooling jacket (12) along direction from outside to inside, high temperature resistant packing layer (6) and the high temperature resistant furnace lining (7) of building, on cooling jacket (12), be provided with entrance of cooling water (13) and cooling water outlet (14), in the calcining section (4) of vertical furnace, be provided with thermocouple temperature measurement instrument and infrared thermometer, its top feed storehouse (1) is arranged at the top of vertical furnace, and the discharge port of its top feed storehouse (1) is communicated with the furnace chamber of vertical furnace, on the sidewall on top, its top feed storehouse (1), be provided with the air outlet (15) that is communicated with internal space, its top feed storehouse (1), the lower end of vertical furnace connects continuous automatic discharge apparatus (2) by pipeline, the tapping channel that is positioned at continuous automatic discharge apparatus (2) end is provided with the tooth-like drawing mechanism of roller (17), the end of automatic discharge apparatus is also connected with discharge nozzle (18), the discharge end of discharge nozzle (18) is connected with the opening for feed of finished car (20), the bottom of vertical furnace is provided with for blast the nitrogen inlet mouth (21) of nitrogen to vertical furnace inside.
2. the equipment of a kind of continuous production VN alloy according to claim 1, is characterized in that: described thermocouple temperature measurement instrument and infrared thermometer are arranged at the top calcining section (8) of calcining section (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319209.XU CN203878192U (en) | 2014-06-16 | 2014-06-16 | Apparatus for continuously preparing vanadium-nitrogen alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420319209.XU CN203878192U (en) | 2014-06-16 | 2014-06-16 | Apparatus for continuously preparing vanadium-nitrogen alloy |
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| Publication Number | Publication Date |
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| CN203878192U true CN203878192U (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420319209.XU Expired - Fee Related CN203878192U (en) | 2014-06-16 | 2014-06-16 | Apparatus for continuously preparing vanadium-nitrogen alloy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097616A (en) * | 2018-09-07 | 2018-12-28 | 河钢股份有限公司承德分公司 | A kind of device and method of continuous production ferrovanadium nitride alloy |
| CN110306106A (en) * | 2019-06-14 | 2019-10-08 | 四川展祥特种合金科技有限公司 | A kind of reverse circulation is double to push away VN alloy process units and technique |
-
2014
- 2014-06-16 CN CN201420319209.XU patent/CN203878192U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109097616A (en) * | 2018-09-07 | 2018-12-28 | 河钢股份有限公司承德分公司 | A kind of device and method of continuous production ferrovanadium nitride alloy |
| CN110306106A (en) * | 2019-06-14 | 2019-10-08 | 四川展祥特种合金科技有限公司 | A kind of reverse circulation is double to push away VN alloy process units and technique |
| CN110306106B (en) * | 2019-06-14 | 2023-10-31 | 四川展祥特种合金科技有限公司 | Reverse circulation double-pushing vanadium-nitrogen alloy production device and process |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20210616 |