CN100370043C - Crude zinc smelting method and smelting furnace therefor - Google Patents
Crude zinc smelting method and smelting furnace therefor Download PDFInfo
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- CN100370043C CN100370043C CNB2006102004356A CN200610200435A CN100370043C CN 100370043 C CN100370043 C CN 100370043C CN B2006102004356 A CNB2006102004356 A CN B2006102004356A CN 200610200435 A CN200610200435 A CN 200610200435A CN 100370043 C CN100370043 C CN 100370043C
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Abstract
The present invention discloses a method for smelting spelter and a smelting furnace thereof, which adopts fire smelting technology to smelt the spelter. The present invention is characterized in that two or more than two smelting tanks are arranged in a combustion chamber of the smelting furnace; when one smelting tank is smelted at high temperature, other smelting tanks are preheated or smelted at low temperature by utilizing the generated residual heat; after the high-temperature smelting of the smelting tank is finished, the nearby smelting tanks smelted at the low temperature are smelted at the high temperature, and the other smelting tanks are continuously preheated or smelted at the low temperature by the residual heat. The spelter can be smelted without interruption by repeating the smelting process. The present invention adopts the structure of the annular smelting furnace, and a high-temperature section, a moderate-temperature section and a low-temperature section are formed in the combustion chamber. By utilizing the residual heat generated during the high-temperature smelting, the present invention has the advantages that the utilization ratio of heat energy is improved, and the production cost is reduced. The method of the present invention is suitable for smelting the spelter and smelting other metal with the need of the stagewise operation of high temperature and low temperature.
Description
Technical field
The present invention relates to a kind of crude zinc smelting process and used smelting furnace stove, belong to the zinc technical field of smelting.
Background technology
In the prior art, the smelting process of metallic zinc mainly is divided into two kinds of wet method and pyrogenic processes.The investment of hydrometallurgy is huge, and the wastewater treatment difficulty is strong to material choice; Pyrometallurgical smelting has perpendicular jar smelting, blast furnace smelting and electrosmelting etc., all has shortcomings such as investment is big, production cost is high, the heat energy utilization rate is low.
Summary of the invention
The objective of the invention is to, a kind of crude zinc smelting process of low-cost high-efficiency and used smelting furnace are provided.This method can be produced continuously, heat energy utilization rate height, and production cost is low.
Technical scheme of the present invention.The crude zinc smelting process, it adopts pyrometallurgical smelting process to smelt, it is smelted step and is divided into preheating, low temperature smelting, pyrotic smelting and charging deslagging, in the combustion chamber of smelting furnace, be provided with the smelting pot more than 2 or 2, when one of them smelting pot is carried out pyrotic smelting, the waste heat that utilization produces carries out preheating or low temperature smelting to other smelting pot, after this smelting pot pyrotic smelting finishes, again pyrotic smelting is carried out through the smelting pot of low temperature smelting in the next door, the waste heat that produce this moment continues other smelting pot is carried out preheating or low temperature smelting, repeat above-mentioned smelting process, can carry out continual crude zinc and smelt.
Above-mentioned crude zinc smelting process, above-mentioned smelting furnace adopts toroidal combustion chamber, the indoor circle smelting pot that is provided with of annular firing, the smelting pot indoor to annular firing heats successively, utilization is carried out waste heat that pyrotic smelting produces to wherein 1 or 1 above smelting pot the smelting pot on next door is carried out preheating or low temperature smelting, when this smelting pot pyrotic smelting finishes to cool off the charging deslagging, begin pyrotic smelting is carried out through the smelting pot of low temperature smelting in the next door, the waste heat that produce this moment continues other smelting pot of preheating, repeat above-mentioned smelting process, can carry out continual crude zinc to the indoor smelting pot of annular firing according to the order of setting and smelt
Above-mentioned crude zinc is smelted the smelting furnace of usefulness, structure comprises annular interior wall 1 and exterior wall 2, is combustion chamber 3 in the middle of interior wall 1 and the exterior wall 2, is provided with a circle coal gas and a hot air nozzle 4 on interior wall 1,3 are provided with a circle smelting pot 5 in the combustion chamber, and the position of smelting pot 5 correspondences is connected with condenser 6 on exterior wall 2; 3 bottoms are provided with flue 7 in the combustion chamber, and flue 7 connects smoke outlet 8, and smoke outlet 8 annulars are arranged on 3 bottoms, combustion chamber.
Above-mentioned crude zinc is smelted the smelting furnace of usefulness, and vertical distribution has the smelting pot 5 that 2～5 layers of annular are provided with in combustion chamber 3.
Above-mentioned crude zinc is smelted the smelting furnace of usefulness, and smelting pot 5 be small one and large one elliptical table shapes of two ends, the end sealing that radius is little, the end connection condenser 6 that radius is big.
Above-mentioned crude zinc is smelted the smelting furnace of usefulness, and smelting pot 5 is a carbofrax material.
Above-mentioned crude zinc is smelted the smelting furnace of usefulness, and the structure of condenser 6 comprises the base 9 that is used to connect smelting pot 5, is provided with loam cake 10 on base 9, and the afterbody that connects smelting pots 5 at base 9 is provided with and protects flitch 11, is provided with leakage fluid dram 12 at base 9 front ends; Be provided with venting hole 13 on loam cake 10, the front end formation opening for feed 14 at base 9 and loam cake 10 is provided with baffle plate 15 in the opening for feed 14.
Above-mentioned crude zinc is smelted the smelting furnace of usefulness, and condenser 6 is the partial carbonization silicon materials.
The present invention adopts the structure of annular smelting furnace, at the indoor installation one circle smelting pot of annular firing, by coal gas and hot air nozzle smelting pot is heated successively, carry out pyrotic smelting, the high-temperature flue gas that produces is indoor mobile at annular firing, the waste heat that utilizes flue gas carries out preheating or low temperature smelting to the smelting pot on next door, from flue, discharge behind the flow of flue gas half-turn, make and form high temperature section, middle-temperature section and low-temperature zone in the combustion chamber, the smelting pot of high temperature section is smelted, the smelting pot of middle-temperature section carries out low temperature smelting and preheating, the feed deslagging operation of the smelting pot of low-temperature zone.The waste heat that has produced when so just having utilized pyrotic smelting has improved the heat energy utilization rate, and can carry out smelting operation to the indoor smelting pot of annular firing is continual, has further reduced production cost.The present invention simultaneously is because the temperature domain of walker of smelting pot is less, and the carbofrax material that can adopt good heat conductivity, can reclaim is made, and production cost is lower.Therefore the present invention has and can produce continuously, heat energy utilization rate height, the advantage that production cost is low.Be suitable for crude zinc and smelt, and other need carry out the Metal smelting method of high low temperature stagewise operation.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is that the A of accompanying drawing 1 is to synoptic diagram;
Accompanying drawing 3 is the B-B sectional view of accompanying drawing 1;
Accompanying drawing 4 is the structural representation of smelting pot of the present invention;
Accompanying drawing 5 is the structural representation of condenser base of the present invention;
Accompanying drawing 6 is the structural representation of condenser loam cake of the present invention;
Accompanying drawing 7 is condenser base of the present invention and the scheme of installation that protects flitch;
Accompanying drawing 8 is structure of condenser synoptic diagram of the present invention.
Embodiment
Embodiments of the invention.Crude zinc smelting process and smelting furnace thereof, build annular interior wall 1 and exterior wall 2 with refractory brick earlier, in the middle of interior wall 1 and the exterior wall 2 is combustion chamber 3, one circle coal gas and hot air nozzle 4 is installed on interior wall 1, coal gas is connected coal-gas producer 16 with hot air nozzle 4, coal-gas producer can be installed in the middle of the interior wall 1,3 install a circle smelting pot 5 in the combustion chamber, for the ease of installing, smelting pot 5 be small one and large one elliptical table shapes of two ends, and the end that radius is little seals, be installed on the interior wall 1, the end that radius is big connects condenser 6, and smelting pot 5 adopts carbofrax material to make, and can reclaim after damaging.3 vertical distribution have three layers smelting pot 5 in the combustion chamber, and the position of smelting pot 5 correspondences connects condenser 6 on exterior wall 2; Flue 7 is produced in 3 bottoms in the combustion chamber, and flue 7 is connected with smoke outlet 8, and smoke outlet 8 annulars are arranged on the bottom of combustion chamber 3, and stretches out exterior wall 2, and the position correspondence of each coal gas and hot air nozzle 4 is provided with a smoke outlet 8.
The condenser 6 of present embodiment adopts the partial carbonization silicon materials to make, its structure comprises the base 9 that is used to connect smelting pot 5, base 9 afterbodys prolong web plate 17, smelting pot 5 is placed on the web plate 17, install one in web plate 17 fronts and protect flitch 11, loam cake 10 is installed on base 9, is manufactured with leakage fluid dram 12 at base 9 front ends; Make a venting hole 13 on loam cake 10, the opening for feed 14 of front end formation at base 9 and loam cake 10 is used for charging and deslagging, and a baffle plate 15 is set in opening for feed 14.
Multiple shapes such as annulus, elliptical ring, straight-flanked ring can be adopted in combustion chamber 3 of the present invention, and smelting pot 5 and condenser 6 also can adopt the structure of existing crude zinc smelting furnace, are made into multiple shapes such as rectangle, circle, can realize purpose of the present invention equally
During blow-on, earlier one section combustion chamber 3 and smelting pot 5 are preheating to 800 ℃, then with the raw material smelted from condenser 6 is packed smelting pot 5 into, strengthen the tolerance of coal gas and hot air nozzle 4 then, improve smelting temperature, the smoke outlet 8 of this section combustion chamber 3 corresponding distal-most end is opened, the flue gas that burning produces flows in combustion chamber 3 behind the half-turn, discharge from smoke outlet 8, the waste heat that flue gas produces carries out preheating or low temperature smelting to the smelting pot 5 on next door, when the raw material of the smelting pot 5 of this section smelt finish after, the coal gas and the hot air nozzle 4 of closing this position, after to be cooled, carry out deslagging and charging, according to counterclockwise or clockwise direction, open next coal gas and hot air nozzle 4, the smelting pot 5 that the next door is crossed through low temperature smelting carries out pyrotic smelting, simultaneously the smelting pot 5 that next preheating is good is again feeded, wait for and smelting.Open and close coal gas and hot air nozzle 4 so successively, and the air feed total amount of coal gas does not change, repeat above-mentioned steps and can carry out continual crude zinc smelting the smelting pot 5 in the toroidal combustion chamber 3.
Smelting process of the present invention is identical with existing pyrometallurgical smelting process, and it is smelted step and is divided into preheating, low temperature smelting, high temperature The steps such as smelting and charging deslagging, characteristics are the smelting pots that are provided with in the combustion chamber of smelting furnace more than 2 or 2, it is right to utilize One of them smelting pot carries out waste heat that pyrolytic semlting produces other smelting pot is carried out preheating or low temperature smelting, this smelting pot height When temperature smelt to finish, the smelting pot of next door behind low temperature smelting carried out pyrolytic semlting, the waste heat that produce this moment continue preheating other Smelting pot, repeat above-mentioned smelting process, can carry out continual crude zinc smelting.
Claims (8)
1. crude zinc smelting process, it adopts pyrometallurgical smelting process to smelt, it is smelted step and is divided into preheating, low temperature smelting, pyrotic smelting and charging deslagging, it is characterized in that: in the combustion chamber of smelting furnace, be provided with the smelting pot more than 2 or 2, when one of them smelting pot is carried out pyrotic smelting, the waste heat that utilization produces carries out preheating or low temperature smelting to other smelting pot, after this smelting pot pyrotic smelting finishes, again pyrotic smelting is carried out through the smelting pot of low temperature smelting in the next door, the waste heat that produce this moment continues other smelting pot is carried out preheating or low temperature smelting, repeat above-mentioned smelting process, can carry out continual crude zinc and smelt.
2. crude zinc smelting process according to claim 1, it is characterized in that: above-mentioned smelting furnace adopts toroidal combustion chamber, the indoor circle smelting pot that is provided with of annular firing, the smelting pot indoor to annular firing heats successively, utilization is carried out waste heat that pyrotic smelting produces to wherein 1 or 1 above smelting pot the smelting pot on next door is carried out preheating or low temperature smelting, when this smelting pot pyrotic smelting finishes to cool off the charging deslagging, begin pyrotic smelting is carried out through the smelting pot of low temperature smelting in the next door, the waste heat that produce this moment continues other smelting pot of preheating, repeat above-mentioned smelting process, can carry out continual crude zinc to the indoor smelting pot of annular firing according to the order of setting and smelt.
3. crude zinc is smelted the smelting furnace of usefulness, it is characterized in that: structure comprises annular interior wall (1) and exterior wall (2), in the middle of interior wall (1) and the exterior wall (2) is combustion chamber (3), on interior wall (1), be provided with a circle coal gas and a hot air nozzle (4), (3) are provided with a circle smelting pot (5) in the combustion chamber, go up the corresponding position of smelting pot (5) at exterior wall (2) and are connected with condenser (6); (3) bottom is provided with flue (7) in the combustion chamber, and flue (7) connects smoke outlet (8), and smoke outlet (8) annular is arranged on bottom, combustion chamber (3).
4. crude zinc according to claim 3 is smelted the smelting furnace of usefulness, it is characterized in that: vertical distribution has the smelting pot (5) that 2～5 layers of annular are provided with in combustion chamber (3).
5. smelt the smelting furnace of usefulness according to claim 3 or 4 described crude zincs, it is characterized in that: smelting pot (5) is small one and large one elliptical table shape of two ends, the end sealing that radius is little, and the end that radius is big connects condenser (6)
6. crude zinc according to claim 5 is smelted the smelting furnace of usefulness, and it is characterized in that: smelting pot (5) is a carbofrax material.
7. crude zinc according to claim 6 is smelted the smelting furnace of usefulness, it is characterized in that: the structure of condenser (6) comprises the base (9) that is used to connect smelting pot (5), on base (9), be provided with loam cake (10), the afterbody that connects smelting pot (5) at base (9) is provided with and protects flitch (11), is provided with leakage fluid dram (12) at base (9) front end; Be provided with venting hole (13) on loam cake (10), the front end formation opening for feed (14) at base (9) and loam cake (10) is provided with baffle plate (15) in the opening for feed (14).
8. crude zinc according to claim 7 is smelted the smelting furnace of usefulness, and it is characterized in that: condenser (6) is the partial carbonization silicon materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102004356A CN100370043C (en) | 2006-05-10 | 2006-05-10 | Crude zinc smelting method and smelting furnace therefor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102004356A CN100370043C (en) | 2006-05-10 | 2006-05-10 | Crude zinc smelting method and smelting furnace therefor |
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| Publication Number | Publication Date |
|---|---|
| CN1844423A CN1844423A (en) | 2006-10-11 |
| CN100370043C true CN100370043C (en) | 2008-02-20 |
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| CNB2006102004356A Expired - Fee Related CN100370043C (en) | 2006-05-10 | 2006-05-10 | Crude zinc smelting method and smelting furnace therefor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665879B (en) * | 2009-09-29 | 2011-04-20 | 徐建成 | Crude zinc smelting method and smelting kiln used thereby |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838744A (en) * | 2010-06-01 | 2010-09-22 | 中国瑞林工程技术有限公司 | Lead-zinc integrated smelting furnace and method thereof for recovering lead and zinc |
| CN105018746A (en) * | 2015-07-31 | 2015-11-04 | 龙桂山 | Spelter smelting furnace with dust sucking function |
| CN105002373A (en) * | 2015-07-31 | 2015-10-28 | 龙桂山 | Energy-saving crude zinc smelting furnace |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209238A (en) * | 1992-01-29 | 1993-08-20 | Sumitomo Metal Mining Co Ltd | Reducing smelting furnace of zinc oxide |
| CN2366422Y (en) * | 1998-12-08 | 2000-03-01 | 王治坤 | Muffle furnace for obtg. crude zinc with chain type fire grate |
-
2006
- 2006-05-10 CN CNB2006102004356A patent/CN100370043C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209238A (en) * | 1992-01-29 | 1993-08-20 | Sumitomo Metal Mining Co Ltd | Reducing smelting furnace of zinc oxide |
| CN2366422Y (en) * | 1998-12-08 | 2000-03-01 | 王治坤 | Muffle furnace for obtg. crude zinc with chain type fire grate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665879B (en) * | 2009-09-29 | 2011-04-20 | 徐建成 | Crude zinc smelting method and smelting kiln used thereby |
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| CN1844423A (en) | 2006-10-11 |
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Granted publication date: 20080220 Termination date: 20100510 |