CN202470757U - Continuous temperature controlled smelting system with rotary kiln and melting furnace - Google Patents
Continuous temperature controlled smelting system with rotary kiln and melting furnace Download PDFInfo
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- CN202470757U CN202470757U CN2012200421986U CN201220042198U CN202470757U CN 202470757 U CN202470757 U CN 202470757U CN 2012200421986 U CN2012200421986 U CN 2012200421986U CN 201220042198 U CN201220042198 U CN 201220042198U CN 202470757 U CN202470757 U CN 202470757U
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Abstract
The utility model relates to a continuous temperature controlled smelting system with a rotary kiln and a melting furnace. The smelting system comprises the rotary kiln and the melting furnace, wherein the rotary kiln comprises a discharging opening and an air inlet, the melting furnace comprises a feeding opening and an exhaust opening, the discharging opening and the air inlet of the rotary kiln are communicated with the feeding opening and the exhaust opening of the melting furnace in a sealed way, a cooling water jacket is arranged between a waterproof layer and a tube body of the rotary kiln, an air transmission device is arranged between the kiln head and the kiln tail, and first, second and third cooling water jackets are arranged between fireproof materials and furnace walls at two sides as well as the furnace head and the furnace tail of the melting furnace. The smelting system has the advantages that the cooling water jackets have the temperature reduction effect on the fireproof layer and the tube body of the rotary kiln, particularly the kiln head, the erosion is avoided, and the service life is prolonged; the heat energy is recovered and utilized; materials are blown and blown away by the air transmission device, so the reaction and the reduction are more sufficient; the reduction efficiency is improved; the low-temperature and efficient melting out of monohydrallite is realized, and the problem that the acicular monohydrallite cannot be melt out is solved; and the rotary kiln and the melting furnace are connected in series to be used, the continuous reduction and melting and the heat energy recovery are realized, and good conditions are provided for high added value utilization of slag.
Description
Technical field
The utility model belongs to metallurgical technology field, and the rotary kiln that is specifically related to a kind of continuous temperature control is with addition of the molten smelting system that divides stove.
Background technology
In the production of metallurgy industry, chemical industry inorganic salts industry, cement building material industry, all can use rotary kiln.In smelting process; Because the temperature in the cylinder of rotary kiln is up to thousands of degree even higher; And production process need keep continuous state, so although the cylinder of rotary kiln inwall is provided with flame retardant coating, under the effects such as thermal etching that the high-temperature material in cylinder of rotary kiln continues and acid and alkali corrosion; Still can make flame retardant coating and cylinder of rotary kiln constantly encroached on and cause its damage, need correspondingly change after using certain hour.Simultaneously, cause the loss of a large amount of heat energy.Especially the drain hole place of rotary kiln end is because of thermal etching and the acid and alkali corrosion that directly suffers high-temperature material, so damaged through regular meeting and influence production.Like this, carry out the replacing of flame retardant coating, not only will delay the duration, influence production efficiency, and increase huge production cost; And then say it, if the cylinder of rotary kiln sustain damage, that just will further strengthen production cost, reduce operating efficiency.And the great amount of heat energy loss causes energy waste.
Bauxite extracts in the process of aluminium oxide, produces a large amount of red muds; In the lateritic nickel ore wet method leaching process, produced a large amount of acid sludges, caused the pollution of environment and the waste of resource.In the bauxite alkali sintering process,, make reaction not go on, thereby caused the leaching rate of alumina reduction because high temperature reduction has caused the alkali evaporation; When using kiln process to carry out iron oxide reduction, because low temperature just causes the percent reduction of iron oxide not enough.In the existing metallurgical technology, need to use rotary kiln, electric furnace or the molten stove that divides.Use rotary kiln separately,, can't realize continuous reduction, molten branch, heat integration though can realize continuous charging and discharging; And electric furnace, the molten stove that divides all are intermittently charging and discharging, thereby can not realize reduction, the molten branch continuously, heat integration.
The utility model content
The technical problem that the utility model will solve is: overcome the deficiency of prior art, the rotary kiln that continuous temperature control is provided is with addition of the molten smelting system that divides stove.It can effectively reduce the temperature of cylinder of rotary kiln and flame retardant coating, prolongs its service life, thereby has reduced production cost; Realize low-temperature reduction, improve aluminium oxide yield and iron oxide reduction rate; Rotary kiln, molten divide the stove series connection to use, realized continuous charging and discharging, and realize reduction continuously, the molten branch and the comprehensive utilization of heat energy.
The utility model solves the technical scheme that its technical problem adopted: the rotary kiln of temperature control is with addition of the molten smelting system that divides stove continuously; Comprise rotary kiln, the molten stove that divides; Said rotary kiln comprises drain hole, air intake; Stove comprised feeding mouth, exhaust outlet in said molten minute, it is characterized in that: the drain hole of said rotary kiln, air intake and molten airtight the communicating of feeding mouth, exhaust outlet of dividing stove.
Preferably; Said rotary kiln also comprises cylinder of rotary kiln, kiln hood and kiln tail; Be provided with flame retardant coating in the said cylinder of rotary kiln, it is characterized in that: between said cylinder of rotary kiln and said flame retardant coating, a cooling jacket is set, said cooling jacket includes water pipe, goes into the supply mains, outlet pipe, outfall sewer and main cavity; The water inlet end of said oral siphon is communicated with the centre of the delivery port of going into the supply mains in the kiln tail, and the water side of oral siphon is communicated with said main cavity; The said supply mains's of going into water inlet connects a swivel joint;
The water inlet end of said outlet pipe is arranged in the said main cavity, and its water side is communicated with in the centre of kiln hood with an end of said outfall sewer; The other end of said outfall sewer passes to kiln hood, and connects a swivel joint;
Preferably; Said rotary kiln also comprises an air delivery device; Said air delivery device comprises that a gas transmission main, a gas transmission are in charge of, the shower nozzle of giving vent to anger, and said gas transmission main one end is in charge of with said gas transmission in the centre of said kiln hood and is communicated with, and the other end connects a gas distribution plate; Said gas transmission is in charge of that to be arranged in said flame retardant coating inner, with the said shower nozzle UNICOM of giving vent to anger.
Preferably; Stove also comprised discharging opening, slag notch in said molten minute; Be provided with refractory material in the said molten minute stove furnace wall; It is characterized in that: between the furnace wall at the burner place of said molten minute stove and said refractory material, be provided with first cooling jacket, said first cooling jacket comprises first water inlet pipe and first outlet pipe.
Preferably, an ion torch is set in the cavity of said molten minute stove.
Preferably, said ion torch is penetrated in the cavity by the furnace roof of said molten minute stove, and is arranged at said slag notch top.
Preferably, the burner place of said molten minute stove is provided with gas gun.
Preferably, the stove tail place of said molten minute stove is provided with gas gun.
Preferably, between the two side of said molten minute stove and said refractory material, be provided with second cooling jacket, said second cooling jacket comprises second water inlet pipe and second outlet pipe.
Preferably, between the furnace wall at the stove tail place of said molten minute stove and said refractory material, be provided with the 3rd cooling jacket, said the 3rd cooling jacket comprises the 3rd water inlet pipe and the 3rd outlet pipe.
Preferably, said first cooling jacket is more than one; Said second cooling jacket is more than two; Said the 3rd cooling jacket is more than one.
Preferably, the molten height that divides furnace hearth wall of said slag notch distance is greater than the molten height that divides furnace hearth wall of said discharging opening distance.
Preferably, the said slag notch of said ion torch distance is 0.1～1 meter.
Compared with prior art, the beneficial effect of the utility model is: owing between cylinder of rotary kiln and flame retardant coating, set up cooling jacket, both flame retardant coating was lowered the temperature; Reduce it and change number of times; Reduced cost, make again cylinder of rotary kiln especially kiln hood avoid corroding, prolonged its service life; The drain hole place of rotary kiln has set up prickle and has added and cover flame retardant coating, has effectively prevented the destruction of high-temperature material to kiln hood; Cooling jacket has absorbed a large amount of heat energy, has effectively improved the heat energy utilization rate; When material is in the cylinder of rotary kiln bottom; The air delivery device of setting up is in charge of added hydrogen through gas distribution plate, gas transmission main, gas transmission, from the shower nozzle of giving vent to anger, spray, and the hydrogen of ejection can blow afloat material, dispel; Make the material gas-solid reaction normally to carry out, reduce more abundant; And hydrogen has improved reduction efficiency, has shortened the reaction time; Realize bauxite low-temperature, melted expeditiously, solved the difficult problem that needle-like ferro-aluminum ore deposit is used Bayer process, sintering process etc. in the prior art all can't melt effectively; Under the condition that sodium exists, the speeding up of hydrogen reducing iron oxide, thus realize low-temperature reduction, percent reduction is higher than other reducing agent; Simultaneously avoid the alkali evaporation effectively, made reaction normally carry out, improved the yield of aluminium oxide, improved the percent reduction of iron oxide simultaneously, reduced emission of carbon-dioxide simultaneously.Rotary kiln, the series connection of molten branch stove are used; Realized continuous charging and discharging; And realize reduction continuously, the molten branch and the comprehensive utilization of heat energy, for the high value added utilization of slag provides good condition, like the production of float glass process artificial marble, microlite and foaming thermal-insulating.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the cutaway view of the rotary furnace among the utility model embodiment;
Fig. 3 is the front view of molten minute stove among the utility model embodiment;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the left view of Fig. 3.
Be labeled as among the figure:
1, rotary kiln; 11, cylinder of rotary kiln; 12, kiln hood; 13, kiln tail; 14, flame retardant coating; 151, oral siphon; 152, outlet pipe; 153, main cavity; 154, go into the supply mains; 155, outfall sewer; 16, swivel joint; 171, gas transmission main; 172, gas transmission is in charge of; 173, the shower nozzle of giving vent to anger; 18, gas distribution plate; 19, prickle; 130, drain hole; 131, air intake; 2, the molten stove that divides; 21, discharging opening; 22, slag notch; 23, feeding mouth; 24, exhaust outlet; 25, first cooling jacket; 251, first water inlet pipe; 252, first outlet pipe; 26, second cooling jacket; 261, second water inlet pipe 262, second outlet pipe; 27, the 3rd cooling jacket; 271, the 3rd water inlet pipe; 272, the 3rd outlet pipe; 28, ion torch; 29, gas gun; 30, refractory material.
The specific embodiment
Below in conjunction with accompanying drawing embodiment, the utility model done further describing:
Shown in Fig. 1 to 5; A kind of rotary kiln of continuous temperature control is with addition of the molten smelting system that divides stove; Comprise rotary kiln 1, the molten stove 2 that divides; Said rotary kiln 1 comprises drain hole 130, air intake 131, and stove 2 comprised feeding mouth 23, exhaust outlet 24 in said molten minute, the drain hole 130 of said rotary kiln 1, air intake 131 and molten feeding mouth 23, exhaust outlet 24 airtight communicating of dividing stove 2; Referring to Fig. 1,2.
Said rotary kiln 1 also comprises cylinder of rotary kiln 11, kiln hood 12 and kiln tail 13; Be provided with flame retardant coating 14 in the said cylinder of rotary kiln 11; Between said cylinder of rotary kiln 11 and said flame retardant coating 14, cooling jacket is set; Said cooling jacket includes water pipe 151, outlet pipe 152, main cavity 153, goes into supply mains 154, outfall sewer 155, and the water inlet end of oral siphon 151 is connected with the delivery port of going into supply mains 154, and its water side is communicated with said main cavity 153; The water inlet end of said outlet pipe 152 is arranged in the said main cavity 153, and its water side is communicated with outfall sewer 154; Referring to Fig. 1,2.
One end of outfall sewer 155 is in kiln hood 12 centres places and said outlet pipe 152 UNICOMs, and the other end passes to kiln hood 12, and connects swivel joint 16; The water inlet of said oral siphon 151 connects another swivel joint 16, and the delivery port of said oral siphon 151 is arranged at the centre of kiln tail 13; Referring to Fig. 1,2.
Also comprise air delivery device, said air delivery device comprises that gas transmission main 171, gas transmission are in charge of 172, the shower nozzle 173 of giving vent to anger, and said gas transmission main 171 is arranged at said kiln hood 12, is in charge of 172 with said gas transmission and is communicated with; It is more than one that said gas transmission is in charge of 172, is arranged in said flame retardant coating 14 inside, with said shower nozzle 173 UNICOMs of giving vent to anger; Said gas transmission main 171 1 ends are in charge of 172 in the centre of said kiln hood 12 with said gas transmission and are communicated with, and the other end connects gas distribution plate 18; Referring to Fig. 1,2.
Referring to Fig. 3,4,5, the said shower nozzle 173 of giving vent to anger is Duckbill type, and by ceramic material, its gas outlet is arranged on and 10～50 meters of said kiln hood 12 distances towards kiln hood 12; Said kiln hood 12 tops set firmly prickle 19, on said prickle 19, cover flame retardant coating 14;
Referring to Fig. 3,4,5; Stove 2 also comprised discharging opening 21, slag notch 22 in said molten minute; Be provided with refractory material 30 in said molten minute stove 2 furnace walls; Between the furnace wall at the burner place of said molten minute stove 2 and said refractory material 30, be provided with more than one first cooling jacket 25, said first cooling jacket 25 comprises first water inlet pipe 251 and first outlet pipe 252; Between the two side of said molten minute stove 2 and said refractory material 30, be provided with plural second cooling jacket 26, said second cooling jacket 26 comprises second water inlet pipe 261 and second outlet pipe 262; Between the furnace wall at the stove tail place of said molten minute stove 2 and said refractory material 30, be provided with more than one the 3rd cooling jacket 27, said the 3rd cooling jacket 27 comprises the 3rd water inlet pipe 271 and the 3rd outlet pipe 272.
Referring to Fig. 3,4,5, an ion torch 28 is set in the cavity of said molten minute stove 2; Said ion torch 28 is penetrated in the cavity by the furnace roof of said molten minute stove 2, and is arranged at said slag notch 22 tops; The burner of said molten minute stove 2, stove tail place are provided with gas gun 29;
The molten height that divides stove 2 diapires of said slag notch 22 distances is greater than the molten height that divides stove 2 diapires of said discharging opening 21 distances; Said ion torch 28 is 0.1～1 meter with the distance of said slag notch 22.
Referring to Fig. 1,2, gas distribution plate 18 is by controller control, makes the shower nozzle 173 of giving vent to anger in " landfill " that is in material (those when promptly being in cylinder of rotary kiln 11 bottoms give vent to anger shower nozzle 173), just can ventilate and spray; Added hydrogen is in charge of 172 through gas distribution plate 18, gas transmission main 171, gas transmission, ejection from the shower nozzle 173 of giving vent to anger, and the hydrogen of ejection can blow afloat material, dispel.
The drain hole 130 of rotary kiln and molten feeding mouth 23 airtight communicating of dividing stove 2; The air intake 131 of rotary kiln and molten exhaust outlet 24 airtight communicating of dividing stove 2; The main cavity 153 of cooling jacket just is meant that part of cooling jacket between kiln hood 12, kiln tail 13.
Referring to Fig. 1,2,3,4,5, it is same mouthful that the drain hole 130 of rotary kiln 1 preferably is communicated with air intake 131; It is same mouthful that the feeding mouth 23 of molten branch stove 2 preferably is communicated with exhaust outlet 24.
The above; It only is the preferred embodiment of the utility model; Be not to be the restriction of the utility model being made other form, any professional and technical personnel of being familiar with possibly utilize the technology contents of above-mentioned announcement to change or be modified as the equivalent embodiment of equivalent variations.But every the utility model technical scheme content that do not break away to any single modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of the utility model technical scheme according to the technical spirit of the utility model.
Claims (13)
1. the rotary kiln of continuous temperature control is with addition of the molten smelting system that divides stove; Comprise rotary kiln, the molten stove that divides; Said rotary kiln comprises drain hole, air intake; Stove comprised feeding mouth, exhaust outlet in said molten minute, it is characterized in that: the drain hole of said rotary kiln, air intake and molten airtight the communicating of feeding mouth, exhaust outlet of dividing stove.
2. the rotary kiln of continuous temperature control according to claim 1 is with addition of the molten smelting system that divides stove, and it is characterized in that: said rotary kiln also comprises cylinder of rotary kiln, kiln hood and kiln tail, is provided with flame retardant coating in the said cylinder of rotary kiln; Between said cylinder of rotary kiln and said flame retardant coating, a cooling jacket is set; Said cooling jacket includes water pipe, goes into the supply mains, outlet pipe, outfall sewer and main cavity; The water inlet end of said oral siphon is communicated with the centre of the delivery port of going into the supply mains in the kiln tail, and the water side of oral siphon is communicated with said main cavity; The said supply mains's of going into water inlet connects a swivel joint;
The water inlet end of said outlet pipe is arranged in the said main cavity, and its water side is communicated with in the centre of kiln hood with an end of said outfall sewer; The other end of said outfall sewer passes to kiln hood, and connects a swivel joint.
3. the rotary kiln of continuous temperature control according to claim 2 is with addition of the molten smelting system that divides stove; It is characterized in that: said rotary kiln also comprises an air delivery device; Said air delivery device comprises that a gas transmission main, a gas transmission are in charge of, the shower nozzle of giving vent to anger; Said gas transmission main one end is in charge of with said gas transmission in the centre of said kiln hood and is communicated with, and the other end connects a gas distribution plate; Said gas transmission is in charge of that to be arranged in said flame retardant coating inner, with the said shower nozzle UNICOM of giving vent to anger.
According to the rotary kiln of the arbitrary described continuous temperature control of claim 1 to 3 with addition of the molten smelting system that divides stove, it is characterized in that: stove also comprised discharging opening, slag notch in said molten minute, was provided with refractory material in the said molten minute stove furnace wall; Between the furnace wall at the burner place of said molten minute stove and said refractory material, be provided with first cooling jacket, said first cooling jacket comprises first water inlet pipe and first outlet pipe.
5. the rotary kiln of continuous temperature control according to claim 4 is characterized in that: an ion torch is set in the cavity of said molten minute stove with addition of the molten smelting system that divides stove.
6. the rotary kiln of continuous temperature control according to claim 5 is with addition of the molten smelting system that divides stove, and it is characterized in that: said ion torch is penetrated in the cavity by the furnace roof of said molten minute stove, and is arranged at said slag notch top.
7. the rotary kiln of continuous temperature control according to claim 6 is with addition of the molten smelting system that divides stove, and it is characterized in that: the burner place of said molten minute stove is provided with gas gun.
8. the rotary kiln of continuous temperature control according to claim 7 is with addition of the molten smelting system that divides stove, and it is characterized in that: the stove tail place of said molten minute stove is provided with gas gun.
9. the rotary kiln of continuous temperature control according to claim 8 is with addition of the molten smelting system that divides stove; It is characterized in that: between the two side of said molten minute stove and said refractory material, be provided with second cooling jacket, said second cooling jacket comprises second water inlet pipe and second outlet pipe.
10. the rotary kiln of continuous temperature control according to claim 9 is with addition of the molten smelting system that divides stove; It is characterized in that: between the furnace wall at the stove tail place of said molten minute stove and said refractory material, be provided with the 3rd cooling jacket, said the 3rd cooling jacket comprises the 3rd water inlet pipe and the 3rd outlet pipe.
11. the rotary kiln of continuous temperature control according to claim 10 is with addition of the molten smelting system that divides stove, it is characterized in that: said first cooling jacket is more than one; Said second cooling jacket is more than two; Said the 3rd cooling jacket is more than one.
12. the rotary kiln of continuous temperature control according to claim 11 is characterized in that with addition of the molten smelting system that divides stove: the molten height that divides furnace hearth wall of said slag notch distance is greater than the molten height that divides furnace hearth wall of said discharging opening distance.
13. the rotary kiln of continuous temperature control according to claim 12 is characterized in that with addition of the molten smelting system that divides stove: 0.1～1 meter of the said slag notch of said ion torch distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200421986U CN202470757U (en) | 2012-01-21 | 2012-01-21 | Continuous temperature controlled smelting system with rotary kiln and melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200421986U CN202470757U (en) | 2012-01-21 | 2012-01-21 | Continuous temperature controlled smelting system with rotary kiln and melting furnace |
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| Publication Number | Publication Date |
|---|---|
| CN202470757U true CN202470757U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200421986U Expired - Lifetime CN202470757U (en) | 2012-01-21 | 2012-01-21 | Continuous temperature controlled smelting system with rotary kiln and melting furnace |
Country Status (1)
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| CN (1) | CN202470757U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564130A (en) * | 2012-01-21 | 2012-07-11 | 胡长春 | Continuous temperature control smelting system integrating rotary kiln with melting furnace |
| CN103344107A (en) * | 2013-05-17 | 2013-10-09 | 周海彬 | Device and method for respectively producing metal and fire-resistant materials or construction materials through one-time heating |
| CN104215066A (en) * | 2014-09-04 | 2014-12-17 | 郴州杉杉新材料有限公司 | Horizontal-tube carbon intermediate continuous thermal treatment device |
-
2012
- 2012-01-21 CN CN2012200421986U patent/CN202470757U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564130A (en) * | 2012-01-21 | 2012-07-11 | 胡长春 | Continuous temperature control smelting system integrating rotary kiln with melting furnace |
| CN102564130B (en) * | 2012-01-21 | 2014-05-07 | 胡长春 | Continuous temperature control smelting system integrating rotary kiln with melting furnace |
| CN103344107A (en) * | 2013-05-17 | 2013-10-09 | 周海彬 | Device and method for respectively producing metal and fire-resistant materials or construction materials through one-time heating |
| CN103344107B (en) * | 2013-05-17 | 2014-11-26 | 周海彬 | Device and method for respectively producing metal and fire-resistant materials or construction materials through one-time heating |
| CN104215066A (en) * | 2014-09-04 | 2014-12-17 | 郴州杉杉新材料有限公司 | Horizontal-tube carbon intermediate continuous thermal treatment device |
| CN104215066B (en) * | 2014-09-04 | 2015-12-09 | 郴州杉杉新材料有限公司 | A kind of horizontal tube carbonaceous intermediate apparatus for continous heat treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121003 Effective date of abandoning: 20140507 |
|
| RGAV | Abandon patent right to avoid regrant |