CN107699684A - A kind of method of sintering machine start production - Google Patents
A kind of method of sintering machine start production Download PDFInfo
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- CN107699684A CN107699684A CN201710784115.8A CN201710784115A CN107699684A CN 107699684 A CN107699684 A CN 107699684A CN 201710784115 A CN201710784115 A CN 201710784115A CN 107699684 A CN107699684 A CN 107699684A
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- sintering
- grate
- sintering machine
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/16—Sintering; Agglomerating
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- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of method of sintering machine start production, comprise the following steps：1) storage of grate-layer material ore deposit groove is completely continued to employ before production is shut down；2) before start produces, grate-layer material is covered with sintering machine empty station car, grate-layer material forms choke band, to hinder air-flow to flow through；3) dispensing ore deposit groove reduces dosage of coke, and dosage of coke is the 70%~85% of normal producting proportion, prevents sintering deposit from gluing chassis；Mixture moisture percentage by weight is controlled 6.6%~6.8%；Proportioning of returning mine 10%~15%；4) started shooting after more than 1/3 compound is maintained in mixture ore trough, and to cloth sintering feed on chassis；5) it is the 50%~60% of normal engine speed to control sintering machine machine speed.Advantage is：Sintering machine start production efficiency is improved, small sintering ore amount when reducing sintering machine start, improves sinter quality, the time that start material influences on sintering production is reduced, saves production material, save the available machine time.
Description
Technical field
The invention belongs to the sintering technology field in steel and iron industry, more particularly to one kind quickly to realize sintering machine start production
Method.
Background technology
Sintering machine start shooting production process in, sintering pallet cloth is a very crucial step, due to start when, sintering
Machine trolley is in empty station car state, negative pressure can not be formed below sintering pallet, so the combustion zone of sinter bed can not be downward
Motion, causes sinter mixture to form sintering deposit band.
Number of patent application：201310077373.4 disclosing a kind of method of sintering machine start production, produced in start
Before, the empty station car upper berth grate-layer material before igniter, the empty station car upper berth choke band after igniter, to hinder air-flow stream
Cross, form negative pressure.But this method needs to spread choke band, typically regards choke band using plastic cloth, before tail unloads ore deposit, needs
Manually plastic cloth is withdrawn, prevent from causing ore deposit groove to block.Personnel stand and in main exhauster exhausting on the chassis of operation
In the state of, personnel once drop in bellows, are in peril of one's life.Further, when personnel collect choke material, in main exhauster
Under powerful negative pressure, choke material is close to chassis double-edged fine-toothed comb, and recovery is extremely difficult, be with so sintering machine is not uniform motion
Reclaim the progress operation of choke material.So, the sintering deposit of first table top of sintering machine start, which can produce, largely returns
Ore deposit, sinter strength can also be influenceed by very big.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of method of sintering machine start production, improve
Sintering machine start production efficiency, small sintering ore amount when reducing sintering machine start, saves the sintering machine available machine time.
To achieve the above object, the present invention is achieved through the following technical solutions：
A kind of method of sintering machine start production, comprises the following steps：
1) storage of grate-layer material ore deposit groove is completely continued to employ before production is shut down；
2) before start produces, grate-layer material is covered with sintering machine empty station car, grate-layer material forms choke band, to hinder air-flow
Flow through；
3) dispensing ore deposit groove reduces dosage of coke, and dosage of coke is the 70%~85% of normal producting proportion, prevents sintering deposit
Viscous chassis；Mixture moisture percentage by weight is controlled 6.6%~6.8%；Proportioning of returning mine 10%~15%；
4) started shooting after more than 1/3 compound is maintained in mixture ore trough, and to cloth sintering feed, sintering feed on chassis
Thickness degree is the 50%~60% of chassis height of baffle plate；
5) it is the 50%~60% of normal engine speed to control sintering machine machine speed；
6) after sintering deposit discharging, can normally produce.
Before start produces, if central cooler or grate-layer material ore deposit groove participate in maintenance, central cooler and grate-layer material ore deposit groove are emptied
In the case of, sintering machine start does not have enough grate-layer materials to be connected when producing, and at this moment step 2) is suspended, and directly carries out step
3), when central cooler starts to unload sintering deposit, can normally produce.
Compared with prior art, the beneficial effects of the invention are as follows：
The method of sintering machine start production can improve sintering machine start production efficiency, sintering deposit when reducing sintering machine start
Quantity of return mines, sinter quality is improved, reduce the time that start material influences on sintering production, production material is saved, when saving start
Between, support personnel's safety.Choke band is formed using the grate-layer material on sintering machine empty station car, prevents from causing ore deposit groove to block, realizes
Safety in production.
Embodiment
The present invention is described in detail below, it should be noted that the implementation of the present invention is not limited to following embodiment party
Formula.
A kind of method of sintering machine start production, comprises the following steps：
1) storage of grate-layer material ore deposit groove is completely continued to employ before production is shut down；
2) before start produces, grate-layer material is covered with sintering machine empty station car, grate-layer material forms choke band, to hinder air-flow
Flow through；
3) dosage of coke is reduced in dispensing ore deposit groove, dosage of coke is the 70%~85% of normal producting proportion, prevents from sintering
Ore deposit glues chassis；Mixture moisture percentage by weight is controlled 6.6%~6.8%；Return mine and match by weight 10%~15%；
4) started shooting after more than 1/3 compound is maintained in mixture ore trough, and to cloth sintering feed, sintering feed on chassis
Thickness degree is the 50%~60% of chassis height of baffle plate；
5) it is the 50%~60% of normal engine speed to control sintering machine machine speed；
6) after sintering deposit discharging, can normally produce.
Before start produces, if central cooler or grate-layer material ore deposit groove participate in maintenance, central cooler and grate-layer material ore deposit groove are emptied
In the case of, sintering machine start does not have enough grate-layer materials to be connected when producing, and at this moment step 2) is suspended, and directly carries out step
3), when central cooler starts to unload sintering deposit, can normally produce.
Embodiment 1：
Exemplified by smelting iron head factory West and sinter 328 ㎡ sintering machines：
The method of sintering machine start production, comprises the following steps：
1) when scheduled overhaul is shut down, sintering machine is unloaded after ore deposit finishes, and grate-layer material ore deposit groove is collected together full；
2) during start production, start cloth grate-layer material, during cloth to rear of sintering machine, stop cloth grate-layer material, now grate-layer material ore deposit
Remaining not a half groove (the 35%~45% of the grate-layer material ore deposit groove volume) grate-layer material of groove；
3) dosage of coke is reduced in dispensing ore deposit groove, dosage of coke (by weight) is changed to coke powder by normally produce 3.4% and matched somebody with somebody
Than 2.4%, mixture moisture percentage by weight is controlled 6.8%.Return mine and match by weight 13%.
4) after more than 4 meters of compound is maintained in mixture ore trough (mixture ore trough total high 6 meters), start and to
Cloth on chassis, thickness of feed layer 400mm, it is the 50% of chassis height of baffle plate；
5) it is 1.2m/min to control sintering machine machine speed；
6) after sintering deposit unloads ore deposit in rear of sintering machine, machine speed is gradually adjusted to normal 2m/min, dosage of coke
2.8%, mixture moisture is adjusted to 7.0%, proportioning of returning mine 12%.
Embodiment 2：
Exemplified by smelting iron head factory three and burn 360 ㎡ sintering machines：
The method of sintering machine start production, comprises the following steps：
1) when scheduled overhaul is shut down, sintering machine is unloaded after ore deposit finishes, and grate-layer material ore deposit groove is collected together full；
2) during start production, start cloth grate-layer material, during cloth to rear of sintering machine, stop cloth grate-layer material, now grate-layer material ore deposit
Remaining not a half groove (the 35%~45% of the grate-layer material ore deposit groove volume) grate-layer material of groove；
3) dosage of coke is reduced in dispensing ore deposit groove, dosage of coke (by weight) is changed to coke powder by normally produce 3.0% and matched somebody with somebody
Than 2.2%, mixture moisture percentage by weight is controlled 6.7%.Return mine and match by weight 12%.
4) after more than 4 meters of compound is maintained in mixture ore trough (mixture ore trough total high 6 meters), start and to
Cloth on chassis, thickness of feed layer 450mm, it is the 60% of chassis height of baffle plate；
5) it is 1.3m/min to control sintering machine machine speed；
6) after sintering deposit unloads ore deposit in rear of sintering machine, machine speed is gradually adjusted to normal 2m/min, dosage of coke 3%,
Mixture moisture is adjusted to 6.9%, proportioning of returning mine 13%.
Embodiment 3：
Exemplified by smelting iron head factory three and burn 360 ㎡ sintering machines：
The method of sintering machine start production, comprises the following steps：
1) when scheduled overhaul is shut down, sintering machine is unloaded after ore deposit finishes, and grate-layer material ore deposit groove is collected together full；
2) during start production, start cloth grate-layer material, during cloth to rear of sintering machine, stop cloth grate-layer material, now grate-layer material ore deposit
Remaining not a half groove (the 35%~45% of the grate-layer material ore deposit groove volume) grate-layer material of groove；
3) dosage of coke is reduced in dispensing ore deposit groove, dosage of coke (by weight) is changed to coke powder by normally produce 3.2% and matched somebody with somebody
Than 2.6%, mixture moisture percentage by weight is controlled 6.9%.Return mine and match by weight 11%.
4) after more than 4 meters of compound is maintained in mixture ore trough (mixture ore trough total high 6 meters), start and to
Cloth on chassis, thickness of feed layer 350mm, it is the 50% of chassis height of baffle plate；
5) it is 1.5m/min to control sintering machine machine speed；
6) after sintering deposit unloads ore deposit in rear of sintering machine, machine speed is gradually adjusted to normal 2m/min, dosage of coke
3.2%, mixture moisture is adjusted to 6.8%, proportioning of returning mine 13%.
The method of sintering machine start production can improve sintering machine start production efficiency, sintering deposit when reducing sintering machine start
Quantity of return mines, sinter quality is improved, reduce the time that start material influences on sintering production, production material is saved, when saving start
Between 20-30min, support personnel safety.Choke material recovery difficulty phenomenon will not occur, it is ensured that sintering machine normal operation, sintering
The sintering deposit of first table top of machine start, which will not produce, largely returns mine, and sinter strength is unaffected.
Claims (2)
- A kind of 1. method of sintering machine start production, it is characterised in that comprise the following steps：1) storage of grate-layer material ore deposit groove is completely continued to employ before production is shut down；2) before start produces, grate-layer material is covered with sintering machine empty station car, grate-layer material forms choke band, to hinder air-flow stream Cross；3) dosage of coke is reduced in dispensing ore deposit groove, dosage of coke is the 70%~85% of normal producting proportion, prevents sintering deposit from gluing Chassis；Mixture moisture percentage by weight is controlled 6.6%~6.8%；Return mine and match by weight 10%~15%；4) started shooting after more than 1/3 compound is maintained in mixture ore trough, and to cloth sintering feed on chassis, sintering feed thickness Spend for the 50%~60% of chassis height of baffle plate；5) it is the 50%~60% of normal engine speed to control sintering machine machine speed；6) after sintering deposit discharging, can normally produce.
- 2. the method for a kind of sintering machine start production according to claim 1, it is characterised in that before start produces, such as Fruit central cooler or grate-layer material ore deposit groove participate in maintenance, in the case that central cooler and grate-layer material ore deposit groove are emptied, sintering machine start production When there is no enough grate-layer materials to be connected, at this moment step 2) suspend, directly progress step 3), treat that central cooler starts to unload sintering deposit When, can normally it produce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784115.8A CN107699684A (en) | 2017-09-04 | 2017-09-04 | A kind of method of sintering machine start production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710784115.8A CN107699684A (en) | 2017-09-04 | 2017-09-04 | A kind of method of sintering machine start production |
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| CN107699684A true CN107699684A (en) | 2018-02-16 |
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| CN201710784115.8A Pending CN107699684A (en) | 2017-09-04 | 2017-09-04 | A kind of method of sintering machine start production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880423A (en) * | 2021-01-26 | 2021-06-01 | 广东韶钢松山股份有限公司 | Method for controlling shutdown and startup in sintering machine overhauling process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114199A (en) * | 2013-03-12 | 2013-05-22 | 攀钢集团攀枝花钢钒有限公司 | Starting-up production method of sintering machine |
| CN204881183U (en) * | 2015-08-18 | 2015-12-16 | 邯钢集团邯宝钢铁有限公司 | A grate -layer material sharing device for two sintering machines |
-
2017
- 2017-09-04 CN CN201710784115.8A patent/CN107699684A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103114199A (en) * | 2013-03-12 | 2013-05-22 | 攀钢集团攀枝花钢钒有限公司 | Starting-up production method of sintering machine |
| CN204881183U (en) * | 2015-08-18 | 2015-12-16 | 邯钢集团邯宝钢铁有限公司 | A grate -layer material sharing device for two sintering machines |
Non-Patent Citations (1)
| Title |
|---|
| 曹继礼 等: "浅谈烟气脱硫对烧结生产的影响", 《天津冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112880423A (en) * | 2021-01-26 | 2021-06-01 | 广东韶钢松山股份有限公司 | Method for controlling shutdown and startup in sintering machine overhauling process |
| CN112880423B (en) * | 2021-01-26 | 2021-11-16 | 广东韶钢松山股份有限公司 | Method for controlling shutdown and startup in sintering machine overhauling process |
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Application publication date: 20180216 |
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