CN100363516C - Method and device for shortening pidgeon method reduction cycle and extending reduction jug durability - Google Patents
Method and device for shortening pidgeon method reduction cycle and extending reduction jug durability Download PDFInfo
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- CN100363516C CN100363516C CNB2004100701169A CN200410070116A CN100363516C CN 100363516 C CN100363516 C CN 100363516C CN B2004100701169 A CNB2004100701169 A CN B2004100701169A CN 200410070116 A CN200410070116 A CN 200410070116A CN 100363516 C CN100363516 C CN 100363516C
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- tank
- reinforcing equipment
- pidgeon
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Abstract
The present invention provides a strengthening device which can be arranged in a reaction region of a horizontal Pidgeon method. The device with good heat-conducting property can rapidly transmit the heat provided by reduction pot walls to a low temperature region at the pot center, so all raw materials can be more rapidly and more uniformly heated to hotter than reaction temperature, and therefore, the reduction time of the Pidgeon method is shortened. Meanwhile, the device can increase the creep resistance and the service life of the reduction pot according to the air pressure balancing action applied on the pot wall. The present invention provides a double-bottom charge chute and a method for discharging with precast cinder leakage through holes on a reinforced plate, so the reduction pot with the strengthening device can charge and discharge materials by a conventional method.
Description
Affiliated technical field
The present invention relates to improvement to traditional Pidgeon process metal smelting technology and equipment, or rather, it shortens the metallic reducing cycle by a kind of method and apparatus that can strengthen reduction jar heat transfer efficiency and creep resistance simultaneously is provided, prolongation is reduced a jar work-ing life, thereby effectively improves the production efficiency and the economic benefit of Pidgeon process.
Description of the invention will be example with the refining of MAGNESIUM METAL.But it also is applicable to other volatile metal of refining fully, as calcium, strontium, zinc etc.
Background technology
Inventing Pijiang metal process for extracting the forties in last century (U.S. Patent number 2330143, Canadian Patent number 415764,415765 and 463416) is a kind of pyrometallurgy technology that is applicable to the multiple volatile metal of refining (as magnesium, calcium, strontium, zinc etc.).Its technological process comprises the steps: 1) powder mixes that will contain the mineral aggregate of given metallic element and reductive agent is pressed into the vacuum reducing jar internal heating that load level is placed behind the raw material ball, 2) under high temperature and vacuum state, interior metal reduction reaction generation metallic vapor, 3 of taking place of raw material ball) metallic vapor is condensed into solid metal at a crystallization tube that is positioned at reduction jar mouth.Because its technological process is simple and refine the purity height, Pidgeon process has been widely used in the suitability for industrialized production of multiple metal.With the MAGNESIUM METAL is example, just has in the Gross World Product up to 60% at present to be to use Pidgeon process to produce.But traditional skin river processing method still has a series of shortcomings that can not be ignored.What wherein economic benefit is had the greatest impact is that reduction cycle is long and the reduction jar life-span is short.Be example again with the MAGNESIUM METAL, the reduction cycle of traditional skin river refining magnesium method usually will be more than 10 hours.The long major cause of reduction cycle is the poor thermal conductivity of raw material ball.Therefore, need the sufficiently long time pellet that is positioned at reduction jar central section could to be heated to more than the temperature of reaction.On the other hand, because Pidgeon process reduces jar long term operation under high temperature and vacuum state, its tank skin can subside gradually owing to high temperature creep, and then loses efficacy.Only there be 2-3 month the mean life of reduction jar at present.
Summary of the invention
For overcoming the above-mentioned shortcoming of traditional Pidgeon process, this paper author discloses a kind of method that can strengthen Pidgeon process reduction jar heat transfer efficiency and creep resistance simultaneously in Chinese patent application that he submits to recently numbers 2004100426405.The objective of the invention is provides a kind of reduction tank reinforcing equipment device for implementing aforesaid method at present widely used horizontal reduction jar, do not changing existing technical process of Pidgeon process and equipment and do not increasing under the prerequisite of loading and unloading material operation easier, shortening the metallic reducing cycle significantly and prolong reduction jar work-ing life.
Above-mentioned reduction tank reinforcing equipment device by three radial, be mutually 120 degree angles, constitute with the tight stiffening plate that contacts of reduction jar inwall the end separately at it.The reaction section that the reduction tank reinforcing equipment device is installed in reduction jar will reduce a jar cross section and will be divided into three five equilibrium covering of the fans, react pellet and be received in therebetween.The reduction tank reinforcing equipment device has dual function: 1) its good heat-conducting can be delivered to the reduction heat that jar tank skin provided rapidly the lower jar central section of temperature and makes all pellets can both be by faster and be heated to more equably more than the temperature of reaction, thus the shortening reduction cycle; 2) its supporting role to tank skin can be offset the barometric point that the reduction jar is born, thus the creep resistance and the work-ing life of improving the reduction jar.Meanwhile, have benefited from a kind of charge chute of particular design and the leakage slag through hole on the stiffening plate, operation does not cause excessive obstacle to the loading and unloading material in the use of reduction tank reinforcing equipment.
In sum, reduction tank reinforcing equipment device provided by the present invention can bring following important improvement for it not changing existing technical process of Pidgeon process and equipment and do not increase under the situation of loading and unloading material difficulty:
1. because reduction tank reinforcing equipment has strengthened the creep resistance of tank skin, the reduction jar can be worked under comparatively high temps and tool longer work-ing life.
2. higher reduction temperature has improved the utilization ratio of reductive agent, has reduced raw material consumption, has improved metal output.
3. thereby the higher reduction temperature and the conductive force of reduction tank reinforcing equipment make heat that tank skin provides by faster and be delivered to more equably and remove to have shortened the Pidgeon process reduction cycle in all pellets.
Description of drawings
The present invention is described further below in conjunction with accompanying drawing.
Fig. 1 is the plane of structure sectional view of one of reduction tank reinforcing equipment embodiment.
Fig. 2 is the vertical face sectional view of reduction tank reinforcing equipment shown in Figure 1, shows that it is pressed on state on the tank skin by drift.
Fig. 3 is the vertical face sectional view of reduction tank reinforcing equipment shown in Figure 1, shows that it is by the state after getting loose from tank skin.
Fig. 4 is the front view (a) and the left view (b) of charge chute.
Fig. 5 is two the plane of structure sectional view of reduction tank reinforcing equipment embodiment.
Embodiment
The present invention overcomes the long and short shortcoming of reduction jar life-span of traditional Pidgeon process reduction cycle by a kind of reduction tank reinforcing equipment device is provided for horizontal reduction jar.Yet the present invention does not change the existing technical process and the equipment of Pidgeon process, does not increase the difficulty of loading and unloading material yet.
Fig. 1 and Fig. 2 are respectively the plane of structure and the vertical face sectional views of reduction tank reinforcing equipment (one of embodiment).Reduction tank reinforcing equipment (100) by three be radial, be mutually 120 the degree stiffening plate angle, that make by the good conductor heat-stable material of heat constitute.Wherein a stiffening plate (101) has an inclined-plane, is shaped on some leakage slag through holes (103) in advance on two stiffening plates (102) in addition.During installation, inclined-plane stiffening plate (101) must be in vertical state, and the inclined-plane on it will be towards jar mouth direction simultaneously.The drift (104) that is placed on this inclined-plane stiffening plate (101) can slide along it, thereby intensifier (100) can be pressed on reduction jar (10) tank skin, or it is got loose from tank skin.Fig. 2 shows that drift (104) is pressed on the reduction jar tank skin in inclined-plane, effect lower edge stiffening plate (101) rising of thrust F and with intensifier (100).Fig. 3 shows that then the tensile force f F that is applied on the drift removal hole (105) makes drift (104) get loose from tank skin along inclined-plane stiffening plate (101) decline and with intensifier (100).
Reduction tank reinforcing equipment (100) will reduce a jar cross section and be divided into three five equilibrium covering of the fans, and the reaction pellet is loaded between its stiffening plate.The charging process can be finished by means of charge chute shown in Figure 4 (200).The structure and the conventional charge chute of this charge chute (200) are basic identical, and unique difference is that it subsidiary has removable " V " shape base plate (201) that falls.This base plate (201) be one along its longitudinal midline be bent into 120 the degree, with the isometric steel plate of charge chute.The charging process is carried out in two steps." V " shape base plate (201) that at first will fall takes off, and feeds for the covering of the fan space of reduction jar bottom according to a conventional method.After finishing, " V " shape base plate (201) that will fall is loaded onto, and feeds for two covering of the fan spaces on reduction jar top again.Because fall two parallel linkings that are mutually upper surface with the upper surface of two stiffening plates (102) that constitute reduction jar lower fan space of planes at 120 degree angles of " V " base plate (210), the pellet of toppling on it can unhinderedly be pushed in two covering of the fan spaces on reduction jar top.Discharge process and routine operation are basic identical.Unique difference is the defective material ball that only need draw off reduction jar lower fan space of planes here.Along with drawing off of defective material ball in the reduction jar lower fan space of planes, being positioned at two last covering of the fan spatial defective material balls originally will fall down by the leakage slag through hole (103) on two stiffening plates (102).So the defective material ball that only needs working method routinely to continue to draw off the lower fan space of planes can be finished the discharging operation to whole reduction jar.
Reduction tank reinforcing equipment after the installation (100) will link up and occupy whole reduction jar reaction zone length.Note keeping the unanimity of each intensifier setting angle.Location between the intensifier and linking are realized by locating slot (106).The installation of reduction tank reinforcing equipment (100) begins to carry out successively to jar mouth direction from the reduction pot bottom.
The advantage of above-mentioned reduction tank reinforcing equipment (100) is an installation flexibility.It can be directly mounted in the reduction jar that internal diameter size changes within the specific limits without change, comprises the reduction jar of a little distortion.
Another embodiment of reduction tank reinforcing equipment is shown in Fig. 5.This intensifier (110) is radial by three, is mutually 120 degree angles, and the identical in structure stiffening plate is formed.Because there is not drift, intensifier (110) can only be installed on the new reduction jar of certain internal diameter.Same because there is not drift, intensifier (110) need be by being installed to such as the method for shrink-on or welding on the reduction jar.In the embodiment shown in fig. 5, intensifier (110) is by the welding hole (111) that bores system in reduction jar in advance that itself and tank skin is welded together again after earlier being installed in the reduction jar (10) by shrink-on.Because do not use drift, the length of single intensifier (110) can suitably be strengthened-even it is isometric to make and reduce jar reaction zone.Like this, every reduction jar only needs to install an intensifier.Although the Installation Flexibility of this intensifier (110) is intensifier (100) as described above not, the welding of it and tank skin can increase the diastrophic restraint force to the latter, thereby has further improved the creep resistance and the work-ing life of reduction jar.
Reduction tank reinforcing equipment device provided by the present invention has dual improvement to Pidgeon process: 1) its good heat-conducting can be delivered to the reduction heat that jar tank skin provided rapidly the lower jar central section of temperature and makes all pellets can both be by faster and be heated to more equably more than the temperature of reaction, thus shortening Pidgeon process reduction cycle; 2) its supporting role to tank skin can be offset the barometric point that the reduction jar is born, thus the creep resistance and the work-ing life of improving the reduction jar.This paper author has provided detailed theoretical proof to above-mentioned improvement in its Chinese patent application of submitting to recently numbers 2004100426405.
It is pointed out that the reduction tank reinforcing equipment device specific embodiment that provides above is only for conveniently setting forth the present invention's principle of work.The principle of work that the implementer can use the present invention above-mentioned specific embodiment is carried out diversified modification and details perfect.But all embodiment mutation that so produce all belong to the particular embodiment of the present invention's principle of work, therefore also are comprised in claims of the present invention in the desired interest field.
Claims (4)
1. one kind is installed in the interior reduction tank reinforcing equipment device of horizontal Pidgeon process reduction jar reaction zone, it is characterized in that by three radial, be mutually 120 degree angles, closely contact with reduction jar tank skin or the stiffening plate that is combined as a whole, made by the good conductor heat-stable material of heat is constituted the end separately at it, its function is to be delivered to the barometric point that jar center cold zone and balance tank skin are born rapidly with reducing the jar heat that tank skin provided.
2. reduction tank reinforcing equipment device according to claim 1 is characterized in that installing in back three stiffening plates one and must be in vertical state and will reduce jar reaction zone cross section evenly to be divided into a following covering of the fan that is positioned at the bottom, cross section and two be the last covering of the fan of symmetrical minute surface with above-mentioned vertical stiffening plate.
3. reduction tank reinforcing equipment device according to claim 2 is characterized in that described vertical stiffening plate has an inclined-plane towards jar mouth direction, be equipped with on it one can slide along it, in order to intensifier is pressed on the drift on the reduction jar tank skin.
4. reduction tank reinforcing equipment device according to claim 2 is characterized in that having a series of leakage slag through holes on described two non-vertical stiffening plates; Described two defective material balls of going up in the covering of the fan space are fallen in the described lower fan space of planes by these leakage slag through holes and are discharged from there.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100701169A CN100363516C (en) | 2004-08-02 | 2004-08-02 | Method and device for shortening pidgeon method reduction cycle and extending reduction jug durability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100701169A CN100363516C (en) | 2004-08-02 | 2004-08-02 | Method and device for shortening pidgeon method reduction cycle and extending reduction jug durability |
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| Publication Number | Publication Date |
|---|---|
| CN1733951A CN1733951A (en) | 2006-02-15 |
| CN100363516C true CN100363516C (en) | 2008-01-23 |
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| CNB2004100701169A Expired - Fee Related CN100363516C (en) | 2004-08-02 | 2004-08-02 | Method and device for shortening pidgeon method reduction cycle and extending reduction jug durability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609438A (en) * | 2015-02-13 | 2015-05-13 | 中国科学院青海盐湖研究所 | Hydrothermal purification method of lithium tetraborate |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101191155B (en) * | 2006-11-22 | 2012-07-18 | 贵州世纪天元矿业有限公司 | Electric heating method for reduction pot and reduction pot used for the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0889142A1 (en) * | 1997-07-02 | 1999-01-07 | Logistik Zentrum Institut für Materialfluss, Logistik und Expertensysteme GmbH | Retort furnace for the production of magnesium |
| CN1311342A (en) * | 2001-02-08 | 2001-09-05 | 银川市兰天实用技术研究所 | Vertical magnesium refining furnace by reducing method |
| CN2624147Y (en) * | 2003-03-26 | 2004-07-07 | 鞍山科技大学科信公司 | Automatic control device for fused magnesia furnace |
-
2004
- 2004-08-02 CN CNB2004100701169A patent/CN100363516C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0889142A1 (en) * | 1997-07-02 | 1999-01-07 | Logistik Zentrum Institut für Materialfluss, Logistik und Expertensysteme GmbH | Retort furnace for the production of magnesium |
| CN1311342A (en) * | 2001-02-08 | 2001-09-05 | 银川市兰天实用技术研究所 | Vertical magnesium refining furnace by reducing method |
| CN2624147Y (en) * | 2003-03-26 | 2004-07-07 | 鞍山科技大学科信公司 | Automatic control device for fused magnesia furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609438A (en) * | 2015-02-13 | 2015-05-13 | 中国科学院青海盐湖研究所 | Hydrothermal purification method of lithium tetraborate |
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| CN1733951A (en) | 2006-02-15 |
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Granted publication date: 20080123 Termination date: 20090902 |