CN102286668A - Tilting charge and discharge type reducing furnace and reducing method thereof - Google Patents
Tilting charge and discharge type reducing furnace and reducing method thereof Download PDFInfo
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- CN102286668A CN102286668A CN2011102120451A CN201110212045A CN102286668A CN 102286668 A CN102286668 A CN 102286668A CN 2011102120451 A CN2011102120451 A CN 2011102120451A CN 201110212045 A CN201110212045 A CN 201110212045A CN 102286668 A CN102286668 A CN 102286668A
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Abstract
The invention discloses a tilting charge and discharge type reducing furnace and a reducing method thereof. The reducing furnace comprises a furnace body, a reducing tank and a furnace body tilting mechanism; a combustion system is arranged in the furnace body and provides high temperature required by the reducing process; the reducing tank penetrates the furnace body; two ends of the reducing tank extend out of the furnace body, one end of the reducing tank is provided with a charging hole, and the other end of the reducing tank is provided with a slag hole; the furnace body tilting mechanism comprises a rotating shaft serving as a pivot for rotary movement of the furnace, and a lifting mechanism for driving the furnace body to rotate around the rotating shaft; the rotating shaft is horizontally arranged; and the reducing tank at least can rotate between a horizontal position and a tilt position. In the heating and reducing process, the reducing tank of the tilting charge and discharge type reducing furnace is positioned at the horizontal position; in the charging and slagging process, the reducing tank is positioned at the tilt position; and because the slagging can be automatically carried out by means of gravitational attraction, the production speed is improved, manual labor is reduced, and production mechanization is realized.
Description
The application is one and divides an application, and its female case is that application number is 200810239661.4, the applying date is on December 15th, 2008, denomination of invention is the Chinese patent application of " tilting charge and discharge type reducing furnace and method of reducing thereof ".
Technical field
The present invention relates to a kind of metal vacuum smelting reduction furnace, particularly a kind of vacuum smelting reduction furnace that is used for smelting magnesium or calcium.
Background technology
Some vapour pressure higher alkali metal and alkaline-earth metal as clang, inscription, magnesium, calcium etc., can make with metallothermics under the condition of vacuum with silicon, aluminium or their alloy.Difference according to heating means, present magnesium-smelting silicothermic process can be divided into three kinds: a kind of is production of magnesium by pidgeonprocess (The Pidgeon Process), a kind of is the semi-continuous process refining magnesium (The Magnetherm Process) of France, and another kind is gondola Pierre Jia Nuofa refining magnesium (The Bolgano Process).The former belongs to the magnesium-smelting silicothermic process of outer heating, and then two kinds of methods are internal resistance heating magnesium-smelting silicothermic process.
Wherein most popular both at home and abroad is Pidgeon process, reduction jar along continuous straight runs fixed placement is in reduction furnace, and an end of reduction jar is airtight, its the other end is provided with can freely control the opening that opens and closes, pelletizing feed can be put into the reduction jar by described opening, the jar that will reduce again vacuumizes, and makes then under its high temperature (1200 ℃) environment in reduction furnace to react.After for some time, magnesium vapor is separated out from pelletizing feed, and is collected by crystallizer behind the arrival reduction tank top.Separate out finish after, from described opening part the slag of pelletizing feed is discharged.Then, charging again, so circulation is carried out.
Adopting the advantage of production of magnesium by pidgeonprocess is that method is simple, prolongs usefulness for a long time always, but the weak point of its existence pollutes except the energy consumption height, to environment, also has:
1, the charging of traditional reduction furnace and deslagging carry out from same opening part, need separate treatment, make the production cycle prolong;
2, along continuous straight runs is finished charging and deslagging work, and working strength is big, is difficult to realize mechanize production, hand labor dependency height.
3, traditional production method, deslagging operation make the production operation district produce a large amount of dust pollutions, cause the industrial worker easy lung's occupational illness, and have hidden dangers such as the workman scalds, damages, injures by a crashing object.
Therefore, also be necessary the apparatus and method of existing production of magnesium by pidgeonprocess are improved, to meet the needs that modern industry is produced.
Summary of the invention
Purpose of the present invention just provides a kind of tilting charge and discharge type reducing furnace and method of reducing thereof, and the work that exists with the solution prior art collects close type, the problem of environmental pollution, poor benefit.
For achieving the above object, the technical solution used in the present invention comprises:
A kind of tilting charge and discharge type reducing furnace comprises body of heater, reduction jar and body of heater inclining rotary mechanism, it is characterized in that:
Be provided with firing system in the described body of heater, needed high temperature in the reduction process is provided;
Described reduction jar wears and is fixed in the described body of heater, and all stretch out outside the body of heater at its two ends, and a reduction jar end is provided with charging bole, and the other end is provided with slag notch;
Described body of heater inclining rotary mechanism comprises: as body of heater rotatablely move fulcrum rotating shaft and drive the lifting mechanism of body of heater around described rotating shaft rotation, described rotating shaft is horizontally disposed with, and described reduction jar can come back rotation at least between a level attitude and an obliquity;
Described rotating shaft is arranged on the mid-way of body of heater, and described lifting mechanism is connected with an end of body of heater.
In the preferable embodiment: described lifting mechanism is hydro-cylinder or electronic screw mandrel.
In the preferable embodiment: be provided with pit below the slag notch of described reduction jar, described pit place is provided with induced draft fan.
For achieving the above object, the technical solution used in the present invention also comprises:
A kind of tilting charge and discharge type MAGNESIUM METAL or calcium reduction method is characterized in that: may further comprise the steps:
(1) start the body of heater inclining rotary mechanism, will the reduction jar be tilted to the charging position of inclination, open the charging bole of reduction jar, pelletizing feed is packed in the reduction jar, after pelletizing feed is filled, the sealing charging bole;
(2) will reduce the jar backwater mean place that verts, reduction jar will be vacuumized, start the intravital firing system of stove then, and make metallic vapor in pelletizing feed, separate out;
(3) after the metal of pelletizing feed is separated out fully in the reduction jar, will reduce and jar let out vacuum, and open the slag notch of reduction jar then, and restart the body of heater inclining rotary mechanism and will reduce jar position of slagging tap that is tilted to inclination, slag flows out automatically, and slag is closed slag notch after going out only;
(4) repeat above-mentioned steps (1), step (2) and step (3).
In the preferable embodiment: be provided with pit below the slag notch of described reduction jar, described pit place is provided with induced draft fan.
For achieving the above object, the technical solution used in the present invention also comprises:
A kind of tilting charge and discharge type MAGNESIUM METAL or calcium reduction method is characterized in that: may further comprise the steps:
(1) the reduction jar after will feeding is tilted to level attitude, then reduction jar is vacuumized, and starts the intravital firing system of stove then, makes metallic vapor separate out in pelletizing feed;
(2) after the metal of pelletizing feed is separated out fully in the reduction jar, will reduce and jar let out vacuum, and open the slag notch of reduction jar then, and then start the body of heater inclining rotary mechanism, the jar that will reduce is tilted to obliquity, and slag flows out automatically, and slag is closed slag notch after going out only;
(3) open the reduction jar charging bole, with pelletizing feed pack into the reduction jar in, seal charging bole then;
(4) repeat above-mentioned steps (1), step (2) and step (3).
In the preferable embodiment: be provided with pit below the slag notch of described reduction jar, described pit place is provided with induced draft fan.
Compared with prior art, the beneficial effect that has of the present invention is:
1. enhance productivity.The employing mode reduction furnace that verts, a side adopts mechanical charging, opposite side automatic sludge discharge, to increase substantially automatization level, shorten the production cycle, improve magnesium (calcium) steam speed of separating out, reduce and analyse the magnesium time, reduce magnesium (calcium) recovery time, improve production operational availability.The conventional oven magnesium reduction time is wanted 11-12 hour, this time can reduce to recovery time 9.5-10 hour.Improve production operational availability greatly, improve yield in unit time.Improve material magnesium (calcium) and compare level.
2. reduce the labor cost significantly.Need in the original production process to use manually feed in a large number, slag tap, ingot work.Adopt the technology of the present invention can reduce number of workers significantly, can reduce 70-80%.Realize that magnesium (calcium) reduction operation is semicontinuous, mechanize, automatization.The labor cost reduces significantly.
3. help realizing automatization control.Can detect and control each item No. number in the reduction furnace production process by control device.Realize parameter optimized operation scopes such as temperature, pressure, flow, vacuum tightness.Monitoring parameter gone wrong in time handle and report to the police.Ensure the safe operation of system, strengthened efficient administration.
4. protection environment, social benefit is showing.Reducing slag is discharged in the deslagging hole automatically, reduces a large amount of dust pollution in production operation district, significantly reduces the possibility that the industrial worker gets lung's occupational illness.Hidden danger such as significantly reduced workman's scald, damage, injure by a crashing object demonstrates fully enterprise with artificial aim.
5. but make in the reduction furnace strange land that should invent, directly transports the scene to, need not realize reduction furnace commercialization, stdn, mass production in the production scene construction and installation.
6. because required 20% of the traditional reduction furnace that manually is reduced to of reduction furnace of this invention has been broken through MAGNESIUM METAL enterprise and enlarged difficult this first restriction of recruiting of scale personnel, make extensiveization of magnesium industry develop into reality.
Description of drawings
Fig. 1 is the synoptic diagram of reduction furnace of the present invention when being horizontal;
Fig. 2 is the synoptic diagram of reduction furnace of the present invention when being in obliquity (charging);
Fig. 3 is the synoptic diagram of reduction furnace of the present invention when being in obliquity (slagging tap);
Fig. 4 is feed immediately after the slagging tap synoptic diagram of step of reduction furnace of the present invention.
Embodiment
As Fig. 1, Fig. 2, shown in Figure 3, be a kind of tilting charge and discharge type reducing furnace, it comprises body of heater 10, reduction jar 20 and body of heater inclining rotary mechanism 30, wherein:
Be provided with firing system 11 in the described body of heater 10, needed high temperature in the reduction process is provided;
Described reduction jar 20 wears and is fixed in the described body of heater 10, and all stretch out outside the body of heater 10 at its two ends, and reduction jar 20 1 ends are provided with charging bole 21, and the other end is provided with slag notch 22;
Described body of heater inclining rotary mechanism 30 comprises: as body of heater 10 rotatablely move fulcrum rotating shaft 31 and drive the lifting mechanism 32 (as hydro-cylinder or electronic screw mandrel) of body of heater 10 around described rotating shaft 31 rotations, described rotating shaft 31 is horizontally disposed with, and makes reduction jar 20 can come back rotation between level attitude and obliquity at least; When described reduction jar 20 was horizontal, as shown in Figure 1, the axis 23 of reduction jar 20 paralleled with sea line 40; When described reduction jar 20 is in obliquity, as Fig. 2, shown in Figure 3, the axis 23 and sea line 40 obliques of reduction jar 20, and the charging bole 21 of reduction jar 20 is higher than described slag notch 22.
Adopt said structure, in the heating reduction process, the reduction jar 20 of tilting charge and discharge type reducing furnace is horizontal, and in charging and tapping process, reduction jar 20 all is in obliquity (feeding and slagging tap to be in same obliquity, also can be in different obliquitys), because tapping process can utilize terrestrial gravitation to carry out automatically, improve production rate, reduced the hand labor amount, helped realizing production mechanization.
In the above-described embodiments, described rotating shaft 31 is arranged on the mid-way of body of heater 10, and described lifting mechanism 32 is connected with an end of body of heater 10.Such set-up mode makes the center of gravity of reduction furnace can try one's best near rotating shaft 31, and reduces the load of lifting mechanism 32 to greatest extent, saves production cost.Certainly, also rotating shaft 31 can be arranged on an end of body of heater 10 or other position on the body of heater 10, the purpose of the body of heater 10 of can realizing verting.
In addition, in accompanying drawing 1,2, Fig. 3, schematically the tie point with rotating shaft 31 and lifting mechanism 32 and body of heater 10 is illustrated in body of heater 10 belows, and in practical application, also described tie point can be arranged on the top or the middle part of body of heater 10, can produce the effect of pivot equally.
Also have, as shown in Figure 3, below the slag notch 22 of described reduction jar 20, also be provided with pit 50, and be provided with induced draft fan 51 at described pit 50 places.When described reduction jars 20 was in obliquity, the slag 52 of discharging from slag notch 22 directly was discharged in the pit 50, cooperates the dedusting effect of induced draft fan 51 again, can prevent that dust is floating and polluted.
Replenish a bit, air, the coal gas in the reduction furnace, vacuumize with cooling water pipeline and need adopt metal to be flexible coupling in the part, guarantee not influence body of heater 10 with this and normally vert, this belongs to known technology, and its specific implementation method does not repeat them here.
Below cooperate Fig. 1, Fig. 2, Fig. 3 to introduce working process of the present invention, it may further comprise the steps:
(1) as shown in Figure 2, start body of heater inclining rotary mechanism 30, the jar 20 that will reduce is tilted to charging position, open the charging bole 21 of reduction jar 20, pelletizing feed is packed in the reduction jars 20 by a mechanism (being mechanical arm), and described mechanism can guarantee the pelletizing feed charging evenly, and is not broken, after pelletizing feed is filled, sealing charging bole 21;
(2) as shown in Figure 1, to reduce jars 20 backwater mean places that vert, reduction jar 20 is vacuumized, guarantee that reduction jar 20 interior vacuum tightnesss reach technical requirements, start the firing system 11 in the body of heater 10 then, keep body of heater 10 interior temperature between 1200 ℃～1250 ℃, make magnesium (calcium) steam in pelletizing feed, separate out;
(3) as shown in Figure 3, after the magnesium (calcium) of pelletizing feed is separated out fully in the reduction jar 20, the jar 20 that will reduce is let out vacuum, open the slag notch 22 of reduction jar 20 then, restarting body of heater inclining rotary mechanism 30 will reduce and jars 20 be tilted to the position of slagging tap, slag 52 flows out automatically and enters in the pit 50, and slag 52 is closed slag notch 22 after going out only;
(4) repeat above-mentioned steps (1), step (2) and step (3).
In above-mentioned working process, be that different positions is an example with charging position with the position of slagging tap, in fact, also charging position can be become same position with the Position Design of slagging tap, so can further enhance productivity, its engineering that has is as follows:
(1) as Fig. 1, reduction jar 20 after the charging is tilted to level attitude, then reduction jar 20 is vacuumized, guarantee that reduction jar 20 interior vacuum tightnesss reach technical requirements, start the firing system 11 in the body of heater 10 then, keep body of heater 10 interior temperature between 1200 ℃～1250 ℃, make magnesium (calcium) steam in pelletizing feed, separate out;
(2) as Fig. 3, after the magnesium (calcium) of pelletizing feed is separated out fully in the reduction jar 20, the jar 20 that will reduce is let out vacuum, open the slag notch 22 of reduction jar 20 then, then start body of heater inclining rotary mechanism 30, the jar 20 that will reduce is tilted to obliquity, and slag 52 flows out automatically and enters in the pit 50, and slag 52 is closed slag notch 22 after going out only;
(3) as Fig. 4, open the charging bole 21 of reduction jars 20, pelletizing feed is packed in the reduction jars 20 by a mechanism, seal charging bole 21 then;
(4) repeat above-mentioned steps (1), step (2) and step (3).
Below structure of the present invention and method and prior art are done a detailed comparison:
Sum up advantage of the present invention at last:
1. enhance productivity.The employing mode reduction furnace that verts, a side adopts mechanical charging, opposite side automatic sludge discharge, to increase substantially automatization level, shorten the production cycle, improve magnesium (calcium) steam speed of separating out, reduce and analyse the magnesium time, reduce magnesium (calcium) recovery time, improve production operational availability.The conventional oven magnesium reduction time is wanted 11-12 hour, this time can reduce to recovery time 9.5-10 hour.Improve production operational availability greatly, improve yield in unit time.Improve material magnesium (calcium) and compare level.
2. reduce the labor cost significantly.Need in the original production process to use manually feed in a large number, slag tap, ingot work.Adopt the technology of the present invention can reduce number of workers significantly, can reduce 70-80%.Realize that magnesium (calcium) reduction operation is semicontinuous, mechanize, automatization.The labor cost reduces significantly.
3. help realizing automatization control.Can detect and control each item No. number in the reduction furnace production process by control device.Realize parameter optimized operation scopes such as temperature, pressure, flow, vacuum tightness.Monitoring parameter gone wrong in time handle and report to the police.Ensure the safe operation of system, strengthened efficient administration.
4. protection environment, social benefit is showing.Reducing slag is discharged in the deslagging hole automatically, reduces a large amount of dust pollution in production operation district, significantly reduces the possibility that the industrial worker gets lung's occupational illness.Hidden danger such as significantly reduced workman's scald, damage, injure by a crashing object demonstrates fully enterprise with artificial aim.
5. but make in the reduction furnace strange land that should invent, directly transports the scene to, need not realize reduction furnace commercialization, stdn, mass production in the production scene construction and installation.
6. because required 20% of the traditional reduction furnace that manually is reduced to of reduction furnace of this invention has been broken through MAGNESIUM METAL enterprise and enlarged difficult this first restriction of recruiting of scale personnel, make extensiveization of magnesium industry develop into reality.
More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skills understand, under the situation of the spirit and scope that do not break away from claim and limited; can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.
Claims (5)
1. a tilting charge and discharge type reducing furnace comprises body of heater, reduction jar and body of heater inclining rotary mechanism, it is characterized in that:
Be provided with firing system in the described body of heater, needed high temperature in the reduction process is provided;
Described reduction jar wears and is fixed in the described body of heater, and all stretch out outside the body of heater at its two ends, and a reduction jar end is provided with charging bole, and the other end is provided with slag notch;
Described body of heater inclining rotary mechanism comprises: as body of heater rotatablely move fulcrum rotating shaft and drive the lifting mechanism of body of heater around described rotating shaft rotation, described rotating shaft is horizontally disposed with, and described reduction jar can come back rotation at least between a level attitude and an obliquity;
Described rotating shaft is arranged on the mid-way of body of heater, and described lifting mechanism is connected with an end of body of heater.
2. tilting charge and discharge type reducing furnace according to claim 1 is characterized in that: described lifting mechanism is hydro-cylinder or electronic screw mandrel.
3. tilting charge and discharge type reducing furnace according to claim 1 is characterized in that: be provided with pit below the slag notch of described reduction jar, described pit place is provided with induced draft fan.
4. tilting charge and discharge type MAGNESIUM METAL or calcium reduction method is characterized in that: may further comprise the steps:
(1) the reduction jar after will feeding is tilted to level attitude, then reduction jar is vacuumized, and starts the intravital firing system of stove then, makes metallic vapor separate out in pelletizing feed;
(2) after the metal of pelletizing feed is separated out fully in the reduction jar, will reduce and jar let out vacuum, and open the slag notch of reduction jar then, and then start the body of heater inclining rotary mechanism, the jar that will reduce is tilted to obliquity, and slag flows out automatically, and slag is closed slag notch after going out only;
(3) open the reduction jar charging bole, with pelletizing feed pack into the reduction jar in, seal charging bole then;
(4) repeat above-mentioned steps (1), step (2) and step (3).
5. tilting charge and discharge type MAGNESIUM METAL according to claim 4 or calcium reduction method is characterized in that: be provided with pit below the slag notch of described reduction jar, described pit place is provided with induced draft fan.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011102120451A CN102286668A (en) | 2008-12-15 | 2008-12-15 | Tilting charge and discharge type reducing furnace and reducing method thereof |
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| CN2011102120451A CN102286668A (en) | 2008-12-15 | 2008-12-15 | Tilting charge and discharge type reducing furnace and reducing method thereof |
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| CN2008102396614A Division CN101748292B (en) | 2008-12-15 | 2008-12-15 | Tilting charge and discharge type reducing furnace and reducing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899507A (en) * | 2012-09-27 | 2013-01-30 | 河南中孚实业股份有限公司 | Large-volume refined aluminum segregation furnace purifying plant |
| CN115821062A (en) * | 2022-10-24 | 2023-03-21 | 中国铝业股份有限公司 | Magnesium reduction device, system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060523A (en) * | 1991-07-29 | 1992-04-22 | 天津钢厂 | Tilter for electric furnace body |
| CN1097060A (en) * | 1993-06-28 | 1995-01-04 | 工业保养及合约服务公司 | The method and apparatus of control slag |
| CN101289708A (en) * | 2008-05-13 | 2008-10-22 | 辛卫亚 | Semi-continuous metallothermic reduction process |
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2008
- 2008-12-15 CN CN2011102120451A patent/CN102286668A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060523A (en) * | 1991-07-29 | 1992-04-22 | 天津钢厂 | Tilter for electric furnace body |
| CN1097060A (en) * | 1993-06-28 | 1995-01-04 | 工业保养及合约服务公司 | The method and apparatus of control slag |
| CN101289708A (en) * | 2008-05-13 | 2008-10-22 | 辛卫亚 | Semi-continuous metallothermic reduction process |
Non-Patent Citations (1)
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| 印协世: "《钨丝生产原理、工艺及其性能》", 31 May 1998, 冶金工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102899507A (en) * | 2012-09-27 | 2013-01-30 | 河南中孚实业股份有限公司 | Large-volume refined aluminum segregation furnace purifying plant |
| CN115821062A (en) * | 2022-10-24 | 2023-03-21 | 中国铝业股份有限公司 | Magnesium reduction device, system and method |
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Application publication date: 20111221 |