CN102944118A - Method for forming furnace eye for submerged arc furnace - Google Patents
Method for forming furnace eye for submerged arc furnace Download PDFInfo
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- CN102944118A CN102944118A CN2012104570700A CN201210457070A CN102944118A CN 102944118 A CN102944118 A CN 102944118A CN 2012104570700 A CN2012104570700 A CN 2012104570700A CN 201210457070 A CN201210457070 A CN 201210457070A CN 102944118 A CN102944118 A CN 102944118A
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Abstract
The invention discloses a method for forming a furnace eye of a submerged arc furnace. The method comprises the following steps of (1) filling coke and mud balls into an embedded pipe; (2) inserting the embedded pipe into a slag removing channel which is arranged at the bottom of a submerged arc furnace so that the outlet of the embedded pipe can extend to a furnace eye close to the submerged arc furnace, wherein the inlet of the embedded pipe is communicated with a liquid phase area of the submerged arc furnace; and (3) enabling the liquid in the liquid phase area to flow into the embedded pipe from the inlet of the embedded pipe, and melting the coke and mud balls in the embedded pipe. In such way, according to the method provided by the invention, as the embedded pipe is preset before blowing in, and the high temperature liquid in the liquid phase area is diverted to the furnace eye, the time for forming the furnace eye can be greatly shortened, the labor intensity for forming the furnace eye can be reduced, the production efficiency of the submerged arc furnace can be ensured, and the cost for the blowing-in furnace is reduced; in addition, the method further can be used for avoiding the condition that the wall of the submerged arc furnace is damaged as the furnace eye is easily formed in an inclined way by the conventional furnace eye forming method, therefore, the potential safety hazards are prevented.
Description
Technical field
The present invention relates to the ore smelting technical field, particularly relate to a kind of method of mineral hot furnace blow-on eye.
Background technology
When so-called mineral hot furnace eye is normal smelting operation owing to organizing after extraneous factor or the plant issue blowing out and get through stove eye and slagging channel in the again blow-on process.If stove eye and slagging channel can not in time be got through, can not in time the liquid waste residue in time be discharged after can causing open circuit, therefore cause load reduction, have a strong impact on the normal operation of mineral hot furnace.
Need in traditional technique to block stove eye and slagging channel with mud ball, to prevent forming solid with stove eye and slagging channel obstruction after the furnace charge cooling.Because intensity is large under the mud ball high temperature, must use oxygen lance blow-on eye (before the stove, hold and light combustibles, combustion-supporting by the high pressure oxygen in the oxygen lance, the mud ball of stove intraocular is burnt, stretch into from the stove eye again and cut a hole an instrument and get through the stove eye).
So operate not only longly between blow-on at the moment, labour intensity is large, and easily the stove eye is beaten tiltedly, destroyed the stability of furnace wall, the increase potential safety hazard.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.
For this reason, one object of the present invention is to propose a kind of method of quick and easy mineral hot furnace blow-on eye.
According to the method for the mineral hot furnace blow-on eye of the embodiment of the invention, comprise the steps: that (1) will insert coke and mud ball in the built-in pipe; (2) described built-in pipe is inserted in the slagging channel that is located at described mineral hot furnace bottom, so that the outlet of described built-in pipe extends to the stove eye place near described mineral hot furnace, the entrance of described built-in pipe is connected with the liquid phase region of described mineral hot furnace; And (3) make the liquid in the liquid phase region flow in the described built-in pipe from the entrance of described built-in pipe, melts coke and mud ball in the described built-in pipe.
Thus, method according to the mineral hot furnace blow-on eye of the embodiment of the invention, by before blow-on, setting in advance built-in pipe, high-temp liquid in the liquid phase region is guided to stove eye place, can greatly shorten the time of blow-on eye and the labour intensity that reduces the blow-on eye, guarantee the production efficiency of mineral hot furnace and reduced the blow-on cost.In addition, adopt the method for mineral hot furnace blow-on eye of the present invention can also avoid traditional blow-on eye method easily the stove eye to be beaten tiltedly, the mineral hot furnace wall is caused damage, therefore stopped potential safety hazard.
In addition, the method for mineral hot furnace blow-on eye according to the above embodiment of the present invention can also have following additional technical feature:
According to one embodiment of present invention, after step (2) was finished, plugged made the heterogeneous electrode discharge of described mineral hot furnace, was liquid in order to melt the furnace charge of described liquid phase region.
According to one embodiment of present invention, the interior length of described electrode insertion furnace charge is at least 1.6 meters.
According to one embodiment of present invention, the part in described electrode inserts furnace charge around set in advance coke.
According to one embodiment of present invention, the amount of the described coke that sets in advance is double centner.
According to one embodiment of present invention, described built-in pipe comprises the horizontal pipeline section that inserts in the described slagging channel and the inclination pipeline section that is connected with described liquid phase region, and described horizontal pipeline section and described inclination pipeline section are logical by being weldingly connected.
According to one embodiment of present invention, described built-in pipe is iron pipe.
According to one embodiment of present invention, described coke and mud ball section gap are inserted in the described built-in pipe, and fill mud ball in described built-in pipe exit.
According to one embodiment of present invention, described mud ball is made by broken electrode paste, graphite powder, fire clay and tar.
According to one embodiment of present invention, in described step (3), further comprise, in described built-in pipe, cut a hole eye at described stove eye place.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram that arranges according to the built-in pipe of the method for the mineral hot furnace blow-on eye of the embodiment of the invention;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1; And
Fig. 3 is the schematic diagram of built-in pipe of the method for mineral hot furnace blow-on eye according to an embodiment of the invention.
The specific embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " " center "; " vertically "; " laterally "; " on "; D score; " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only be for convenience of description the present invention and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, need to prove, unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected with, connect integratedly, also can be to removably connect; Can be mechanical connection or electrical connection, also can be the connection of two element internals; Can be directly to link to each other, also can indirectly link to each other by intermediary, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Below with reference to Fig. 1 and Fig. 2 method according to the mineral hot furnace blow-on eye of the embodiment of the invention is described.
As Figure 1-3, the method according to the mineral hot furnace blow-on eye of the embodiment of the invention comprises the steps:
The first step will be inserted the lower solid-state coke 11 of fusing point and mud ball 12, and made coke 11 and mud ball 12 be full of built-in pipe in the built-in pipe 1.
Second step is located at built-in pipe 1 insertion in the slagging channel 21 of mineral hot furnace 2 one side bottoms, so that the outlet 12 of built-in pipe 1 extends to stove eye 22 places of contiguous mineral hot furnace 2, the entrance 14 of built-in pipe 1 is connected with the liquid phase region 31 of mineral hot furnace 2.
Before blow-on, can be only the furnace charge 3 of mineral hot furnace 2 interior corresponding positions be cleared, the furnace charge 3 that is about to slagging channel 21 tops and periphery clears, and with convenient built-in pipe 1 is inserted in the slagging channel 21.Built-in pipe 1 is inserted slagging channel 21 interior after, furnace charge 3 is being filled out back in the mineral hot furnace 2.
As shown in Figure 1, the liquid phase region 31 of mineral hot furnace 2 is formed in heterogeneous electrode 4 furnace charge 3 on every side, furnace charge 3 in liquid phase region 31 is owing to the discharge generation high temperature of heterogeneous electrode 4 becomes liquid state, even after blowing out a period of time, it is liquid that the furnace charge 3 in the liquid phase region 31 still can keep.
In the 3rd step, the liquid in the liquid phase region 31 flows in the built-in pipe 1 from the entrance 13 of built-in pipe 1, coke 11 and mud ball 12 in the fusing built-in pipe 1.Particularly, when the outlet 13 of built-in pipe 1 extends to contiguous stove eye 22 places, and after the liquid phase region 31 in the entrance 14 of built-in pipe 1 and the mineral hot furnace 2 is connected, liquid furnace charge 3 in the liquid phase region 31 can flow in the built-in pipe 1 with coke 11 and mud ball 12 in the fusing built-in pipe 1 by the entrance 14 of built-in pipe 1, form outlet 14 places that mixing material flows and flow to along built-in pipe 1 built-in pipe 1, to melt gradually the furnace charge 3 that stops up stove eye 22 places.Can be easily that stove eye 22 is clear and coherent after the furnace charge 3 at stove eye 22 places is melted, so that slag charge can be discharged outside the mineral hot furnace 2 through slagging channel 21 and stove eye 22.
As shown in Figure 3, preferably, coke 11 and mud ball 12 section gaps are inserted in the built-in pipe 1, the temperature that melts gradually and keep flowing into the high-temp liquid in the built-in pipe 1 to reach coke 11 and mud ball 12.In addition, mud ball 12 is filled at 14 places in built-in pipe 1 outlet, with coke 11 shutoff in built-in pipe 1.
Thus, method according to the mineral hot furnace blow-on eye of the embodiment of the invention, by before blow-on, setting in advance built-in pipe 1, high-temp liquid in the liquid phase region is guided to stove eye 22 places, can greatly shorten the time of blow-on eye and the labour intensity that reduces the blow-on eye, guarantee the production efficiency of mineral hot furnace and reduced the blow-on cost.In addition, adopt the method for mineral hot furnace blow-on eye of the present invention can also avoid traditional blow-on eye method easily the stove eye to be beaten tiltedly, the mineral hot furnace wall is caused damage, therefore stopped potential safety hazard.
As shown in Figure 1, according to one embodiment of present invention, mineral hot furnace 2 furnace outage times are long, may cause the furnace charge 3 in the liquid phase region 31 to change to solid mineral gradually, thereby cause not having the high-temp liquid mineral aggregate to flow to stove eye 22 places by built-in pipe 1.
Therefore, after second step was finished, plugged made the heterogeneous electrode 4 discharge generation high temperature of mineral hot furnace 2, take the furnace charge 3 of melt phase region 31 as liquid.
Preferably, the length that electrode 4 inserts in the furnace charge 3 is at least 1.6 meters, with the temperature of fast lifting liquid phase region 31.
In addition, for fuel is provided, prolong the higher temperature in the liquid phase region 31, and the resistance that reduces furnace charge 3, can set in advance coke 32 on every side what electrode 4 inserted part in the furnace charges 3.The amount of the coke that preferably, sets in advance around every electrode 4 is double centner.
As shown in Figure 2, according to another embodiment of the invention, in the 3rd step, further comprise, when the furnace charge of stove eye 22 is stopped up in the high-temp liquid fusing, can be from mineral hot furnace 2 lateral stove eyes 22 cutter eyes, to accelerate the process of blow-on eye.The furnace charge that stop up stove eye 22 this moment has been at least the semi-molten state, therefore need not require great effort very much and namely can get through stove eye 22, can not cause the furnace wall and damage and deflect the stove eye.
Because liquid phase region 31 is positioned at the top of slagging channel 21 and stove eye 22, preferably, built-in pipe 1 can comprise the horizontal pipeline section 15 that inserts in the slagging channel and the inclination pipeline section 16 that is connected with liquid phase region 31.Built-in pipe 1 can adopt iron pipe, and horizontal pipeline section 15 and inclination pipeline section 16 can be logical by being weldingly connected.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or the example in conjunction with specific features, structure, material or the characteristics of this embodiment or example description.In this manual, the schematic statement of above-mentioned term not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or characteristics can be with suitable mode combinations in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim can be carried out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. the method for a mineral hot furnace blow-on eye is characterized in that, comprises the steps:
(1) coke and mud ball will be inserted in the built-in pipe;
(2) described built-in pipe is inserted in the slagging channel that is located at described mineral hot furnace bottom, so that the outlet of described built-in pipe extends to the stove eye place near described mineral hot furnace, the entrance of described built-in pipe is connected with the liquid phase region of described mineral hot furnace; And
(3) the interior liquid of liquid phase region is flowed in the described built-in pipe from the entrance of described built-in pipe, melt coke and mud ball in the described built-in pipe.
2. the method for mineral hot furnace blow-on eye according to claim 1 is characterized in that, after step (2) was finished, plugged made the heterogeneous electrode discharge of described mineral hot furnace, is liquid in order to melt the furnace charge of described liquid phase region.
3. the method for mineral hot furnace blow-on eye according to claim 2 is characterized in that, the length that described electrode inserts in the furnace charge is at least 1.6 meters.
4. the method for mineral hot furnace blow-on eye according to claim 3 is characterized in that, sets in advance coke around the part in described electrode inserts furnace charge.
5. the method for mineral hot furnace blow-on eye according to claim 4 is characterized in that, the amount of the described coke that sets in advance is double centner.
6. the method for mineral hot furnace blow-on eye according to claim 1, it is characterized in that, described built-in pipe comprises the horizontal pipeline section that inserts in the described slagging channel and the inclination pipeline section that is connected with described liquid phase region, and described horizontal pipeline section and described inclination pipeline section are logical by being weldingly connected.
7. the method for mineral hot furnace blow-on eye according to claim 6 is characterized in that, described built-in pipe is iron pipe.
8. the method for mineral hot furnace blow-on eye according to claim 1 is characterized in that, described coke and mud ball section gap are inserted in the described built-in pipe, and fills mud ball in described built-in pipe exit.
9. the method for mineral hot furnace blow-on eye according to claim 1 is characterized in that, described mud ball is made by broken electrode paste, graphite powder, fire clay and tar.
10. the method for each described mineral hot furnace blow-on eye is characterized in that according to claim 1-9, further comprises in described step (3), cuts a hole eye at described stove eye place in described built-in pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210457070.0A CN102944118B (en) | 2012-11-14 | 2012-11-14 | Method for forming furnace eye for submerged arc furnace |
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| CN201210457070.0A CN102944118B (en) | 2012-11-14 | 2012-11-14 | Method for forming furnace eye for submerged arc furnace |
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| CN102944118B CN102944118B (en) | 2014-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974459A (en) * | 2017-12-28 | 2019-07-05 | 蓝星硅材料有限公司 | A kind of method that electrode paste repairs furnace eye |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07292403A (en) * | 1994-04-22 | 1995-11-07 | Nippon Steel Corp | Brick structure of iron tapping hole of blast furnace |
| CN1345409A (en) * | 1999-04-01 | 2002-04-17 | 艾克米特技术公司 | Metallurgical vessel comprising tapping device and method for controlled, slag-free extraction of mol ten metal from said vessel |
| CN101240978A (en) * | 2007-02-09 | 2008-08-13 | 江西铜业集团公司 | Slag cleaning furnace once electricity-feeding temperature-raising method |
| US20110180173A1 (en) * | 2008-08-07 | 2011-07-28 | Klaus Spies | Tapping Channel for Draining Iron and Metal Melts and Liquid Slags from Metallurgical Containers Such as Blast Furnaces and Melt Furnaces |
| CN102177260A (en) * | 2008-08-07 | 2011-09-07 | Tmt出铁测量技术有限公司 | Method and melt channels for interrupting and restoring the melt stream of iron and metal melts in tap hole channels of blast furnaces and drainage channels of melt furnaces |
| CN102252526A (en) * | 2011-07-06 | 2011-11-23 | 成都高威节能科技有限公司 | Device and method for drilling tap hole on submerged-arc furnace through oriented plasma |
-
2012
- 2012-11-14 CN CN201210457070.0A patent/CN102944118B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07292403A (en) * | 1994-04-22 | 1995-11-07 | Nippon Steel Corp | Brick structure of iron tapping hole of blast furnace |
| CN1345409A (en) * | 1999-04-01 | 2002-04-17 | 艾克米特技术公司 | Metallurgical vessel comprising tapping device and method for controlled, slag-free extraction of mol ten metal from said vessel |
| CN101240978A (en) * | 2007-02-09 | 2008-08-13 | 江西铜业集团公司 | Slag cleaning furnace once electricity-feeding temperature-raising method |
| US20110180173A1 (en) * | 2008-08-07 | 2011-07-28 | Klaus Spies | Tapping Channel for Draining Iron and Metal Melts and Liquid Slags from Metallurgical Containers Such as Blast Furnaces and Melt Furnaces |
| CN102177260A (en) * | 2008-08-07 | 2011-09-07 | Tmt出铁测量技术有限公司 | Method and melt channels for interrupting and restoring the melt stream of iron and metal melts in tap hole channels of blast furnaces and drainage channels of melt furnaces |
| CN102252526A (en) * | 2011-07-06 | 2011-11-23 | 成都高威节能科技有限公司 | Device and method for drilling tap hole on submerged-arc furnace through oriented plasma |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109974459A (en) * | 2017-12-28 | 2019-07-05 | 蓝星硅材料有限公司 | A kind of method that electrode paste repairs furnace eye |
| CN109974459B (en) * | 2017-12-28 | 2020-04-03 | 蓝星硅材料有限公司 | Method for repairing furnace eye by using electrode paste |
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| CN102944118B (en) | 2014-12-10 |
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