CN104451174A - Continuous fuming furnace - Google Patents
Continuous fuming furnace Download PDFInfo
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- CN104451174A CN104451174A CN201410773483.9A CN201410773483A CN104451174A CN 104451174 A CN104451174 A CN 104451174A CN 201410773483 A CN201410773483 A CN 201410773483A CN 104451174 A CN104451174 A CN 104451174A
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- heater
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention discloses a continuous fuming furnace, comprising a rectangular furnace body (A), wherein the ratio of the length to the width of the furnace body is 4-7; a charging melting region (B) and a reaction discharge region (C) are arranged in an inner cavity of the furnace body along the length direction; a charge opening (3) is formed in the upper part of one end of the charging melting region; a slagging hole (6) is formed in one end of the bottom of the reaction discharge region; and a plurality of nozzles (5) for blowing an air and pulverized coal mixture are arranged at the bottoms of furnace walls on two sides of the length direction of the furnace body. According to the continuous fuming furnace, waste slag can be discharged during feeding, so that the efficiency of a furnace hearth is improved; and meanwhile, the continuous fuming furnace is simple to operate, and simple and convenient to fabricate.
Description
Technical field
The present invention relates to a kind of fuming furnace for non-ferrous metal metallurgy, particularly one and can carry out quantity-produced continuous fuming furnace.
Background technology
Fuming furnace is the mixture blasting air and fine coal in molten slag, makes the equipment that some valuable metal in slag evaporates with the form of metal, oxide compound or sulfide.In lead, zinc, tin smeltery, all materials containing volatile valuable metal and compound thereof, all can use fuming furnace process.Advantage that is plumbous with fuming furnace process, tin slag is: the heat that can utilize melting slag, metal recovery rate is higher, and productivity is high, easy and simple to handle, available low grade coal or fuelled with natural gas.
But, existing fuming furnace generally is the square furnace of aspect ratio range between 1.5 to 2 or long-width ratio is the block furnace of 1:1, during with this fuming furnace process slag, due in slag treatment process, needing larger volatilization interface, must be thus a complete working cycle from the discharge being fed to waste residue, must could start next working cycle after a working cycle completes, namely can not again feed in raw material within a working cycle, can not slagging in reaction process.Reinforced, reaction, slagging must sequentially be carried out, and this reduces siege efficiency, thus affect production efficiency.
Summary of the invention
The object of the invention is, for above-mentioned the deficiencies in the prior art, provide one to realize continuously feeding, slag tap continuously, and the fully dilution of furnace charge energy, continuous fuming furnace simple to operate, siege efficiency is high.
For achieving the above object, the technical solution used in the present invention is: a kind of continuous fuming furnace, comprise the body of heater of a rectangle, the length of this body of heater and the ratio of width are 4-7, this body of heater inner chamber is provided with reinforced melting zone and reaction dreg discharging area along its length, this top, one end, reinforced melting zone is provided with charging opening, and the bottom end of this reaction dreg discharging area is provided with slag-drip opening, is provided with multiple nozzle for blasting air and pulverized coal mixture bottom the furnace wall, both sides of this body of heater length direction.
Being improved to further of such scheme, the length of described body of heater and the ratio of width are 5.5.
Being improved to further of such scheme, described nozzle is all located on furnace wall, described body of heater length direction both sides, and the ratio of the air that sprays into of the described nozzle of reinforced melting zone and fine coal is 1, the ratio of the air that the described nozzle of this reaction dreg discharging area sprays into and fine coal is 0.7.
Being improved to further of such scheme, described reinforced melting zone and reaction dreg discharging area are distributed on the length direction of described body of heater inner chamber.
The present invention is by changing the long-width ratio of fuming furnace, make can be divided into charging zone along fuming furnace length direction, reaction zone, dreg discharging area, namely lead is made, zinc, successively charging zone is experienced after the slags such as tin enter fuming furnace, reaction zone, dreg discharging area, reinforced and while there is reduction reaction Time Created order, make charging first by the sequencing of charging, rear generation reduction reaction, first the slag of charging is by after high temperature melting, rely on the surface tension of melt solution, flow to the other end of fuming furnace length direction, and constantly there is reduction reaction, the dilution degree of liquation before waste residue is discharged is made to arrive requirement.
Compared with prior art, the beneficial effect that the present invention has is: the invention enables the slags such as valuable metal lead, antimony, zinc, tin, indium generation reduction reaction while Time Created order, all slags were reduced into corresponding reduzate before waste residue is discharged, like this, just there is not working cycle during fuming furnace blowing, waste sludge discharge can be carried out while charging, improve siege efficiency, meanwhile, the advantages such as this device also has simple to operate, simple for production.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Fig. 2 is vertical view of the present invention.
In figure, 1, molten state slag; 2, highly; 3, opening for feed; 4, length; 5, nozzle; 6, slag-drip opening; 7, base; 8, width.
Embodiment
As shown in Figure 1, a kind of continuous fuming furnace one of the present invention embodiment comprises the body of heater A of a rectangle, and the length 4 of this body of heater A is 5.5 with the ratio of width 8.The length 4 of this body of heater can adjust as required with the ratio of width 8, is generally 4-7.This body of heater A is arranged on base 7, and the inner chamber of this body of heater A is provided with reinforced melting zone B and reaction dreg discharging area C along its length, the top, one end of this reinforced melting zone B is provided with charging opening 3, the bottom end of this reaction dreg discharging area C is provided with slag-drip opening 6, the furnace wall, length direction both sides of this body of heater A is provided with the nozzle 5 for blasting air and pulverized coal mixture.Nozzle 5 is for spraying air and fuel, and nozzle number is determined according to practical situation.
When the present invention uses, the slags such as lead, zinc, tin enter in body of heater A from opening for feed 3, and nozzle 5 sprays into air and pulverized coal mixture in body of heater A, and in-furnace temperature is raised to 1100 rapidly
.c, slag is fused into molten state slag 1 at reinforced melting zone B, the liquid slag newly entered relies on surface tension, flow to reaction dreg discharging area C, molten state slag 1 is reduced while flowing to the slag-drip opening 6 of reaction dreg discharging area C, because the long-width ratio of body of heater A is large, can ensure that the dilution degree of all molten state slags 1 reached Production requirement before flowing to slag-drip opening 6, finally, treated waste residue is discharged through slag-drip opening 6.Like this, just there is not working cycle during fuming furnace blowing, waste sludge discharge can be carried out while charging, improve siege efficiency.In addition, the air that can be sprayed by Control Nozzle 5 and the ratio of fine coal, regulate the local temperature in body of heater A, the closer to opening for feed 3 place nozzle 5 to spray the ratio of air and fine coal larger, make fine coal Thorough combustion, heat is high, accelerates the fusing of cold burden, fine coal Thorough combustion produces a small amount of carbon monoxide, and the ability of the slags such as Reducing Lead, zinc, tin is weak.Nozzle 5 near slag-drip opening 6 place to spray the ratio of air and fine coal less, be roughly 0.7, pulverized coal friring is insufficient, produces a large amount of carbon monoxide, and the ability of the slags such as Reducing Lead, zinc, tin is strong.
For implementing the present invention's conception, applicant has manufactured experimently a kind of continuous fuming furnace at smelting shop, its general data is as follows: the long 7.2m of body of heater A, wide 1.3m, long-width ratio 5.5, high 7.4m, base 1.3m, 20, nozzle is all established in body of heater both sides, each 10 of every side, and namely reinforced melting zone B, reaction dreg discharging area C arrange 10 nozzles respectively.Nozzle is positioned on the same straight line at 0.1m place above base, near the body of heater both sides of slag-drip opening 6, the ratio that air and fine coal are sprayed in 10 nozzles institute of namely reacting dreg discharging area C is 0.7, near the body of heater both sides of opening for feed 3,10 nozzles of the melting zone B that namely feeds in raw material spray air and fine coal ratio be 1.By test, in fuming furnace blowing process of the present invention, the slag newly entered is completely reduced at slag-drip opening place, can realize the charging of no periodic continuous print and deslagging, and siege efficiency improves 1 times on the basis of existing fuming furnace.Meanwhile, the advantages such as this device also has simple to operate, simple for production.
Claims (4)
1. a continuous fuming furnace, comprise the body of heater (A) of a rectangle, it is characterized in that, the length of this body of heater and the ratio of width are 4-7, this body of heater inner chamber is provided with reinforced melting zone (B) and reaction dreg discharging area (C) along its length, this top, one end, reinforced melting zone is provided with charging opening (3), and the bottom end of this reaction dreg discharging area is provided with slag-drip opening (6), is provided with multiple nozzle (5) for blasting air and pulverized coal mixture bottom the furnace wall, both sides of this body of heater length direction.
2. a kind of continuous fuming furnace according to claim 1, is characterized in that, the length of described body of heater and the ratio of width are 5.5.
3. a kind of continuous fuming furnace according to claim 1, it is characterized in that, described nozzle is all located on furnace wall, described body of heater length direction both sides, and the ratio of the air that sprays into of the described nozzle of reinforced melting zone and fine coal is 1, the ratio of the air that the described nozzle of this reaction dreg discharging area sprays into and fine coal is 0.7.
4. a kind of continuous fuming furnace according to claim 1, is characterized in that, described reinforced melting zone (B) and reaction dreg discharging area are distributed on the length direction of described body of heater inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773483.9A CN104451174A (en) | 2014-12-16 | 2014-12-16 | Continuous fuming furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773483.9A CN104451174A (en) | 2014-12-16 | 2014-12-16 | Continuous fuming furnace |
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| Publication Number | Publication Date |
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| CN104451174A true CN104451174A (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410773483.9A Pending CN104451174A (en) | 2014-12-16 | 2014-12-16 | Continuous fuming furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106363A (en) * | 2019-05-20 | 2019-08-09 | 中南大学 | A kind of continuous fuming production technology of modularization |
| CN112503537A (en) * | 2020-11-27 | 2021-03-16 | 重庆商勤禹水环境科技有限公司 | Waste salt melting furnace capable of removing slag in operation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937985A (en) * | 2014-04-18 | 2014-07-23 | 中国恩菲工程技术有限公司 | Continuous fuming furnace and continuous fuming process adopting continuous fuming furnace |
-
2014
- 2014-12-16 CN CN201410773483.9A patent/CN104451174A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937985A (en) * | 2014-04-18 | 2014-07-23 | 中国恩菲工程技术有限公司 | Continuous fuming furnace and continuous fuming process adopting continuous fuming furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110106363A (en) * | 2019-05-20 | 2019-08-09 | 中南大学 | A kind of continuous fuming production technology of modularization |
| CN112503537A (en) * | 2020-11-27 | 2021-03-16 | 重庆商勤禹水环境科技有限公司 | Waste salt melting furnace capable of removing slag in operation |
| CN112503537B (en) * | 2020-11-27 | 2023-09-26 | 重庆商勤禹水环境科技有限公司 | Waste salt melting furnace capable of removing slag in operation |
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Application publication date: 20150325 |