CN104879774A - Tilting furnace drying method - Google Patents
Tilting furnace drying method Download PDFInfo
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- CN104879774A CN104879774A CN201510188867.9A CN201510188867A CN104879774A CN 104879774 A CN104879774 A CN 104879774A CN 201510188867 A CN201510188867 A CN 201510188867A CN 104879774 A CN104879774 A CN 104879774A
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- natural gas
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- heater
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- tilting furnace
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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Abstract
The invention discloses a tilting furnace drying method. The tilting furnace drying method includes (1), opening a feed door, extending a baking natural gas pipe into a tilting furnace body from a sampling hole and the feed door after ignition, controlling natural gas flow in the baking natural gas pipe within 100-200Nm<3>/h, and increasing the temperature to 400 DEG C at the speed of 40 DEG C/h; (2), drawing out the baking natural gas pipe, closing the feed door, keeping a tilting furnace at the constant temperature of 400 DEG C for 24 hours, and frequently tilting the furnace back and forth; (3), injecting natural gas and combustion-supporting oxygen into a combustor, igniting the combustor, adjusting flow ratio of the natural gas to the combustion-supporting oxygen in the combustor, and increasing the temperature of the furnace body to 1350 DEG C, wherein the temperature of a newly-built tilting furnace is increased at the speed of 4 DEG C/h, and the temperature of a patched or cold-repaired tilting furnace is increased at the speed of 13 DEG C/h. By the tilting furnace drying method suitable for structural characteristics of the tilting furnace, service life of the furnace body can be prolonged.
Description
Technical field
The present invention relates to tilting-type anode furnace metallurgical technology field, especially the furnace drying method of tilting furnace.
Background technology
Cooling cold repair or the tilting-type anode furnace (or being tilting furnace) of newly building by laying bricks or stones, as will be again put into production, all need the baker heating process that experience one is very long.The tilting furnace of particularly newly building by laying bricks or stones, can add a large amount of moisture when building by laying bricks or stones, causes material moisture a lot, and baker can get rid of free water, the crystallization water in refractory material construction backsight body, to obtain the applied at elevated temperature performance of refractory material.
Baker is a vital link, and baker should strictly carry out according to the architectural feature of body of heater, the water content of body of heater and material property.If body of heater furnace drying method select incorrect, material internal vapour pressure will inevitably be made excessive, cause material structure to peel off or material internal thermal stress damage, have a strong impact on the safe operation of body of heater and the service life of refractory material.
Summary of the invention
The present invention aims to provide a kind of furnace drying method of tilting furnace, and the suitable tilting furnace architectural feature of this furnace drying method, can extend the service life of body of heater.
In order to solve the problem, the technical solution used in the present invention is:
The furnace drying method of tilting furnace, described tilting furnace comprises body of heater, is located at the feed door of body of heater front end, is located at the burner of body of heater headwall, thief hole, and described body of heater can rotate within the scope of-30 ° ~+30 °, and described furnace drying method comprises the following steps:
(1) open described feed door, stretch in the body of heater of tilting furnace from thief hole and feed door after baking natural gas airduct is lighted, the gas discharge in baking natural gas airduct is controlled to be 100 ~ 200Nm
3/ h, is warmed up to 400 DEG C with the speed of 40 DEG C/h;
(2) extract baking natural gas airduct out, close feed door, make tilting furnace constant temperature 24 hours at 400 DEG C of temperature, and the stove that often verts back and forth, make body of heater thermally equivalent;
(3) in described burner, pass into natural gas and combustion oxygen and ignition combustion device, in adjustment burner, the flow-rate ratio of natural gas and combustion oxygen, makes body of heater be warmed up to 1350 DEG C; The tilting furnace of newly building by laying bricks or stones heats up with the speed of 4 DEG C/h, mends by replacing a damaged part, the tilting furnace of cold repair heats up with the speed of 13 DEG C/h.
Preferably, in described step (3), natural gas and combustion oxygen flow-rate ratio are 1:2.
Preferably, during described step (1) ~ step (3), baking natural gas airduct or burner, once stop working and should light in time, are lighted a fire when the burnout time is less than 1 minute immediately; Burnout time is uncertain or light a fire after the oxygen be detained in body of heater, natural gas all need being discharged when being greater than 1 minute again.
The suitable tilting furnace architectural feature of this furnace drying method, after furnace body temperature reaches 400 DEG C, it is more even that the body of heater that verts frequently makes body of heater be heated, thus extend the service life of body of heater.
Accompanying drawing explanation
Fig. 1 is the structural representation of tilting furnace of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the invention will be further described:
Embodiment 1
As shown in Figure 1, the tilting furnace furnace drying method of newly building by laying bricks or stones, this tilting furnace comprises body of heater 200, is located at the feed door 100 of body of heater 200 front end, is located at the burner 300 of body of heater 200 headwall, thief hole 400, and body of heater 200 can rotate within the scope of-30 ° ~+30 °.
This tilting furnace furnace drying method comprises the following steps:
Step one, opens feed door 100, stretches in the body of heater 200 of tilting furnace, controlled to be 100 ~ 200Nm by the gas discharge in baking natural gas airduct after being lighted by baking natural gas airduct from thief hole 400 and feed door 100
3/ h, is warmed up to 400 DEG C with the speed of 40 DEG C/h;
Step 2, extracts baking natural gas airduct out, closes feed door 100, makes tilting furnace constant temperature 24 hours at 400 DEG C of temperature, and the stove that often verts back and forth, make body of heater 200 thermally equivalent;
Step 3, natural gas and combustion oxygen is passed into and ignition combustion device 300 in burner 300, the flow of natural gas and combustion oxygen in adjustment burner 300, natural gas and combustion oxygen flow-ratio control are 1:2, make body of heater 200 be warmed up to 1350 DEG C with the speed of 4 DEG C/h.
In above-mentioned baker process, baking natural gas airduct or burner 300, once stop working and should light in time, are lighted a fire when the burnout time is less than 1 minute immediately; Burnout time is uncertain or the oxygen be detained in body of heater 200, natural gas need be lighted a fire after all discharging again when being greater than 1 minute.
Embodiment 2
This embodiment is that the present embodiment is the furnace drying method of the tilting furnace after a kind of cold repair with implementing 1 difference, and this tilting furnace furnace drying method comprises the following steps:
Step one, opens feed door 100, stretches in the body of heater 200 of tilting furnace, controlled to be 100 ~ 200Nm by the gas discharge in baking natural gas airduct after being lighted by baking natural gas airduct from thief hole 400 and feed door 100
3/ h, is warmed up to 400 DEG C with the speed of 40 DEG C/h;
Step 2, extracts baking natural gas airduct out, closes feed door 100, makes tilting furnace constant temperature 24 hours at 400 DEG C of temperature, and the stove that often verts back and forth, make body of heater 200 thermally equivalent;
Step 3, natural gas and combustion oxygen is passed into and ignition combustion device 300 in burner 300, the flow of natural gas and combustion oxygen in adjustment burner 300, natural gas and combustion oxygen flow-ratio control are 1:2, make body of heater 200 be warmed up to 1350 DEG C with the speed of 13 DEG C/h.
In above-mentioned baker process, baking natural gas airduct or burner 300, once stop working and should light in time, are lighted a fire when the burnout time is less than 1 minute immediately; Burnout time is uncertain or the oxygen be detained in body of heater 200, natural gas need be lighted a fire after all discharging again when being greater than 1 minute.
Although describe embodiments of the present invention by reference to the accompanying drawings; but patent owner can make various distortion or amendment within the scope of the appended claims; as long as be no more than the protection domain described by claim of the present invention, all should within protection scope of the present invention.
Claims (3)
1. the furnace drying method of tilting furnace, described tilting furnace comprises body of heater, is located at the feed door of body of heater front end, be located at the burner of body of heater headwall, thief hole, described body of heater can rotate within the scope of-30 ° ~+30 °, it is characterized in that, described furnace drying method comprises the following steps:
(1) open described feed door, stretch in the body of heater of tilting furnace from thief hole and feed door after baking natural gas airduct is lighted, the gas discharge in baking natural gas airduct is controlled to be 100 ~ 200Nm
3/ h, is warmed up to 400 DEG C with the speed of 40 DEG C/h;
(2) extract baking natural gas airduct out, close feed door, make tilting furnace constant temperature 24 hours at 400 DEG C of temperature, and the stove that often verts back and forth, make body of heater thermally equivalent;
(3) in described burner, pass into natural gas and combustion oxygen and ignition combustion device, in adjustment burner, the flow-rate ratio of natural gas and combustion oxygen, makes body of heater be warmed up to 1350 DEG C; The tilting furnace of newly building by laying bricks or stones heats up with the speed of 4 DEG C/h, mends by replacing a damaged part, the tilting furnace of cold repair heats up with the speed of 13 DEG C/h.
2. the furnace drying method of tilting furnace according to claim 1, is characterized in that, in described step (3), natural gas and combustion oxygen flow-rate ratio are 1:2.
3. the furnace drying method of tilting furnace according to claim 1, is characterized in that, during described step (1) ~ step (3), baking natural gas airduct or burner, once flame-outly should light in time, are lighted a fire when the burnout time is less than 1 minute immediately; Burnout time is uncertain or light a fire after the oxygen be detained in body of heater, natural gas all need being discharged when being greater than 1 minute again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188867.9A CN104879774B (en) | 2015-04-21 | 2015-04-21 | The furnace drying method of tilting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188867.9A CN104879774B (en) | 2015-04-21 | 2015-04-21 | The furnace drying method of tilting furnace |
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| Publication Number | Publication Date |
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| CN104879774A true CN104879774A (en) | 2015-09-02 |
| CN104879774B CN104879774B (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510188867.9A Expired - Fee Related CN104879774B (en) | 2015-04-21 | 2015-04-21 | The furnace drying method of tilting furnace |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617710A (en) * | 2019-10-09 | 2019-12-27 | 安徽楚江科技新材料股份有限公司 | Furnace drying method of walking beam furnace |
| CN115418433A (en) * | 2022-09-09 | 2022-12-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-temperature furnace drying method for new converter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116294A (en) * | 1994-08-03 | 1996-02-07 | 鞍山钢铁公司 | Quick drying technology for heating furnace |
| CN101880896A (en) * | 2010-06-10 | 2010-11-10 | 索通发展有限公司 | Method for drying carbon anode roasting furnace |
| CN102374773A (en) * | 2010-08-08 | 2012-03-14 | 中国铝业股份有限公司 | Modification method for carbon rotary kiln settling chamber |
| JP2013040721A (en) * | 2011-08-17 | 2013-02-28 | Nippon Steel & Sumitomo Metal Corp | Drying method of lining |
-
2015
- 2015-04-21 CN CN201510188867.9A patent/CN104879774B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116294A (en) * | 1994-08-03 | 1996-02-07 | 鞍山钢铁公司 | Quick drying technology for heating furnace |
| CN101880896A (en) * | 2010-06-10 | 2010-11-10 | 索通发展有限公司 | Method for drying carbon anode roasting furnace |
| CN102374773A (en) * | 2010-08-08 | 2012-03-14 | 中国铝业股份有限公司 | Modification method for carbon rotary kiln settling chamber |
| JP2013040721A (en) * | 2011-08-17 | 2013-02-28 | Nippon Steel & Sumitomo Metal Corp | Drying method of lining |
Non-Patent Citations (2)
| Title |
|---|
| ZHONGZHI414: "烘炉曲线", 《烘炉曲线》 * |
| 袁剑平: "倾动炉述评", 《铜业工程2004年第2期》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110617710A (en) * | 2019-10-09 | 2019-12-27 | 安徽楚江科技新材料股份有限公司 | Furnace drying method of walking beam furnace |
| CN115418433A (en) * | 2022-09-09 | 2022-12-02 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-temperature furnace drying method for new converter |
| CN115418433B (en) * | 2022-09-09 | 2023-09-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | High-temperature furnace drying method for opening new converter |
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| CN104879774B (en) | 2017-05-31 |
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Inventor after: Wu Mingzuan Inventor before: Zou Tiemei |
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Effective date of registration: 20170322 Address after: 362199 Quanzhou City, Huian Province, Yang Zhen Town, West Village under the star No. 121 Applicant after: Quanzhou Groat mechanical and Electrical Equipment Co., Ltd. Address before: Room four, building A-5, Donghua Industrial Zone, Wuzhou Industrial Park, the Guangxi Zhuang Autonomous Region, 543100, China Applicant before: Wuzhou Hai Bang Science and Technology Ltd. |
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