CN204342456U - The high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy - Google Patents
The high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy Download PDFInfo
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- CN204342456U CN204342456U CN201420855261.7U CN201420855261U CN204342456U CN 204342456 U CN204342456 U CN 204342456U CN 201420855261 U CN201420855261 U CN 201420855261U CN 204342456 U CN204342456 U CN 204342456U
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- heater
- slag
- furnace
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Abstract
The high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy, comprise body of heater (17), this body of heater is the semisphere pot body set up through furnace body wall (16) and furnace bottom pedestal (18), this furnace body wall is provided with towards the bocca of bottom of furnace body (1) and the opening for feed (3) being communicated with this body of heater inner chamber; The high-temperature refractory layer (4) that invading property of the resistance to slag of one deck is strong is inlayed near the slag line of this body of heater inner chamber; Gas skirt (5) established by the main header casing of this body of heater, the tapered structure of this gas skirt, and this gas skirt is provided with multiple nozzle of air supply (6) favouring liquid level in body of heater and arrange, and the middle part of this gas skirt is provided with and the central authorities of folding can drags for cinder notch (9); These central authorities drag for the air outlet (8) that cinder notch is provided with secondary air inlet mouth (13) and band valve (7).The utility model body of heater long service life, not fragile, simple, convenient.
Description
Technical field
The utility model relates to a kind of lead antimony alloy stibium trioxide volatilization furnace, particularly the high-grade stibium trioxide (Sb wherein of a kind of long lifetime durable lead antimony alloy
2o
3cubic is greater than 99.5%, and fineness is 0.1-0.5 μm) volatilization furnace.
Background technology
Stibium trioxide, chemistry antimonous oxide by name, industrially has purposes widely.The production method of stibium trioxide has pyrogenic process and wet method two kinds.At present, the stibium trioxide of China is produced based on pyrogenic process, and its output accounts for stibium trioxide output more than 95%.Pyrogenic process divides again direct method and indirect method.
Direct method utilizes the stibnite concentrate of detrimental impurity (Pb+As) seldom (<0.5%) to be raw material, through direct oxidation volatilization, and cooling antimony white.
Indirect method one is raw material with high-grade metallic antimony, and obtain pure stibium trioxide by steps such as fusing, voloxidation, coolings, this is industrial most popular method.After metallic antimony melts in molten bath, then sent into by antimony liquid in the body of heater of stibium trioxide stove, and keep furnace temperature at about 1000 degree, blast primary air to antimony liquid inside or surface, antimony liquid violent stirring is seethed with excitement, and antimony is oxidized to Sb
2o
3and volatilize.Volatile matter meets at furnace roof and freezing air, Sb
2o
3be cooled to solia particle rapidly, except a large amount of cubic system Sb in these particulates
2o
3in addition, also there is the Sb of a small amount of rhomboidal crystal
2o
3,affect use properties.The slag produced in indirect method production process floating gathering in volatilization body of heater, needs regularly to remove.
Indirect method another kind is except the lead antimony alloy after As, Sb with refining, usual Sb content is between 25%-95%, with the pot body of indirect heating lead antimony alloy melted and be incubated between 650 DEG C-750 DEG C, blow to bath surface with preheated air make antimony preferential oxidation and volatilize, with secondary air quenching it, but prior art removes oxidation scum for convenience, stove shape is all designed to rectangle or square.And this stove shape pot body is heated uneven, thermal stresses is concentrated, and easily causes crack, and cause seepage metal and furnace bottom distortion, the life-span is shorter.
Utility model content
The purpose of this utility model is, for above-mentioned the deficiencies in the prior art, provides a kind of long service life, easy to operate lead antimony alloy high-grade stibium trioxide volatilization furnace.
For achieving the above object, the technical solution adopted in the utility model is: the high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy, comprise body of heater, this body of heater is the semisphere or spherical pot body set up through furnace body wall and furnace bottom pedestal, this furnace body wall is provided with towards the bocca of bottom of furnace body and the opening for feed being communicated with this body of heater inner chamber; The high-temperature refractory layer that invading property of the resistance to slag of one deck is strong is inlayed near the slag line of this body of heater inner chamber; Gas skirt established by the main header casing of this body of heater, the tapered structure of this gas skirt, this gas skirt is provided with multiple nozzle of air supply favouring liquid level setting in body of heater, and the middle part of this gas skirt is provided with and the central authorities of folding can drags for cinder notch, a multiple nozzle of air supply is divided into upper and lower two circles to be evenly distributed on the concentric(al) circles on gas skirt; These central authorities drag for the air outlet that cinder notch is provided with secondary air inlet mouth and band valve; These central authorities drag for cinder notch coupling be provided with a slag collector, this slag collector comprise perpendicular to central authorities drag for cinder notch arrange drag for slag bar, this bottom of dragging for slag bar is provided with drags for slag plate.
Being improved to further of such scheme, this high-temperature refractory layer is laid by magnesia chrome brick and is formed.
When the utility model uses, be placed on process furnace by semisphere or ball crown type pot body, process furnace can use the fuel such as combustion gas, coal dust, lump coal, puts the refractory materials of the resistance to scouring of a circle, such as, select magnesia chrome brick etc. at slag line interval, the top lining of this pot of body.On this pot of body, taper gas skirt is set, this gas skirt is arranged near pot body position several that be circular layout be the air nozzle of acute angle with metal pan.On this gas skirt top, horizontal secondary air quenching chamber is set.Central authorities are set at its top and drag for cinder hole and blind patch device.The special central slag collector that can hang in operation is separately established to drag for scum silica frost.
Compared with prior art, the beneficial effect that the utility model has is:
1, the utility model body of heater adopts semisphere or spherical pot body, and body of heater size sets according to Production requirement, and make body of heater thermal expansion everywhere even, built-in thermal stress is evenly distributed, such body of heater long service life, not fragile;
2, inlay the strong high-temperature refractory layer of slag corrosion resistance near the utility model slag line, enhance the erosion resistance near slag line, even if having damage near slag line, only high-temperature refractory need be changed, without the need to changing body of heater, simple, convenient, greatly extend the work-ing life of body of heater;
3, the utility model taper gas skirt adds several and be oriented oblique centripetal nozzle, when primary air fully introduces lead antimony alloy liquation, antimony is made to be oxidized rapidly, under the promotion of strong air flow, antimony liquid surface is left in a large amount of weisspiessglanzs and antimony vapour volatilization, meanwhile, the scum silica frost swum on liquid level is blowed to the central area of semisphere body of heater by the primary air that an oblique centripetal nozzle of air supply bloats, and is convenient to so follow-up drag for Slag treatment;
4, the simplicity of design of the utility model slag collector, only need rotate and drag for slag bar, just can realize dragging for slag, simple to operate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, bocca; 2, lead antimony alloy liquation; 3, opening for feed; 4, refractory masses; 5, gas skirt; 6, a nozzle of air supply; 7, valve; 8, air outlet; 9, central authorities drag for cinder notch; 10, slag collector; 11, slag bar is dragged for; 12, slag plate is dragged for; 13, secondary air inlet mouth; 14, slag; 15, SbO, Sb
2o
3steam; 16, furnace body wall; 17, body of heater; 18, furnace bottom pedestal.
Embodiment
As shown in Figure 1, the utility model long lifetime durable lead antimony alloy high-grade stibium trioxide volatilization furnace one embodiment comprises body of heater 17, this body of heater 17 is the semisphere pot bodies set up through furnace body wall 16 and furnace bottom pedestal 18, this furnace body wall 16 is provided with towards the bocca 1 bottom body of heater 17 and the opening for feed 3 being communicated with this body of heater 17 inner chamber, near the slag line of this body of heater 17, inlays the high-temperature refractory layer 4 that one deck erosion resistance is strong.Gas skirt 5 established by the main header casing of this body of heater 17, this gas skirt 5 stands upside down in taper and is arranged on this body of heater 17, this gas skirt 5 is provided with a multiple nozzle of air supply 6 in favouring the setting of body of heater liquid level, and the middle part of this gas skirt 5 central authorities be provided with vertically upward drag for cinder notch 9.These central authorities drag for the air outlet 8 that cinder notch 9 is provided with secondary air inlet mouth 13 and band valve 7.These central authorities drag for cinder notch 9 and are provided with the slag collector 10 mated with it.This slag collector 10 comprise perpendicular to central authorities drag for cinder notch 9 arrange drag for slag bar 11, this bottom of dragging for slag bar 11 is provided with drags for slag plate 12.
When the utility model uses, be delivered in body of heater 17 by the lead antimony alloy solution 2 of about 800 DEG C, shut central authorities and drag for cinder notch 9, be blown into 600 DEG C of air through preheating from nozzle of air supply 6 in body of heater 17, the oxygen in antimony solution and air reacts and generates SbO, Sb
2o
3steam 15 upwards volatilizees, and finally discharges through air outlet 8.In antimony solution evaporation process, send into from secondary air inlet mouth 13 SbO, Sb that 500 DEG C of air make generation
2o
3steam 15 is lowered the temperature rapidly, makes Sb
2o
3vapor temperature reaches 500 DEG C, and condensation forms constitutionally stable α cubic.The slag produced in the utility model use procedure can swim on liquid level, under the oblique centripetal wind-force of nozzle of air supply 6 feeding blows floating, scum silica frost is concentrated, when slag is more to the middle part of body of heater, open central authorities and drag for cinder notch 9, use slag collector 10 to carry out dragging for Slag treatment.When dragging for slag, equidirectional rotation drags for slag bar 11 to control the rotation that two panels drags for slag plate 12, slag is gathered in and drags on slag plate 12, mention slag collector 10, drag for slag and complete.
For implementing the utility model, the utility model applicant has manufactured experimently the high-grade stibium trioxide volatilization furnace of durable lead antimony alloy of a kind of long lifetime, its general data is as follows: semisphere body of heater 17 diameter 2.8m, furnace bottom pedestal 18 height 0.4m, one time nozzle of air supply 6 arranges 8, upper and lower two row, often row 4, be evenly distributed on the concentric(al) circles of umbrella gas skirt 5, nozzle diameter 25cm, the outer wall of this body of heater 17 adopts 304 model stainless steels, the refractory masses be embedded near slag line adopts refractoriness high, hot strength is large, alkali-resistivity scouring is strong, the magnesia chrome brick of good heat stability, by test, the long service life of the utility model device, simple to operate.
Claims (2)
1. the high-grade stibium trioxide volatilization furnace of long lifetime durable lead antimony alloy, comprise body of heater (17), it is characterized in that, this body of heater is the semisphere pot body set up through furnace body wall (16) and furnace bottom pedestal (18), this furnace body wall is provided with towards the bocca of bottom of furnace body (1) and the opening for feed (3) being communicated with this body of heater inner chamber; The high-temperature refractory layer (4) that invading property of the resistance to slag of one deck is strong is inlayed near the slag line of this body of heater inner chamber; Gas skirt (5) established by the main header casing of this body of heater, the tapered structure of this gas skirt, this gas skirt is provided with multiple nozzle of air supply (6) favouring liquid level setting in body of heater, and the middle part of this gas skirt is provided with and the central authorities of folding can drags for cinder notch (9), a multiple nozzle of air supply is divided into upper and lower two circles to be evenly distributed on the concentric(al) circles on gas skirt; These central authorities drag for the air outlet (8) that cinder notch is provided with secondary air inlet mouth (13) and band valve (7); These central authorities drag for cinder notch coupling be provided with a slag collector (10), this slag collector comprise perpendicular to central authorities drag for cinder notch arrange drag for slag bar (11), this bottom of dragging for slag bar is provided with drags for slag plate (12).
2. the high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy according to claim 1, it is characterized in that, this high-temperature refractory layer (4) is laid by magnesia chrome brick and is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420855261.7U CN204342456U (en) | 2014-12-30 | 2014-12-30 | The high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420855261.7U CN204342456U (en) | 2014-12-30 | 2014-12-30 | The high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy |
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|---|---|
| CN204342456U true CN204342456U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420855261.7U Expired - Fee Related CN204342456U (en) | 2014-12-30 | 2014-12-30 | The high-grade stibium trioxide volatilization furnace of a kind of long lifetime durable lead antimony alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333733A (en) * | 2015-11-25 | 2016-02-17 | 江西德义半导体科技有限公司 | Vertical reduction furnace for high-purity antimony production |
-
2014
- 2014-12-30 CN CN201420855261.7U patent/CN204342456U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333733A (en) * | 2015-11-25 | 2016-02-17 | 江西德义半导体科技有限公司 | Vertical reduction furnace for high-purity antimony production |
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| 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: 20150520 Termination date: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |