CN103245392A - Cabin and tube plugging detection method of airtight submerged arc furnace - Google Patents
Cabin and tube plugging detection method of airtight submerged arc furnace Download PDFInfo
- Publication number
- CN103245392A CN103245392A CN2013101837979A CN201310183797A CN103245392A CN 103245392 A CN103245392 A CN 103245392A CN 2013101837979 A CN2013101837979 A CN 2013101837979A CN 201310183797 A CN201310183797 A CN 201310183797A CN 103245392 A CN103245392 A CN 103245392A
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- feed bin
- computing machine
- putty
- material pipe
- furnace charge
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a cabin and tube plugging detection method of an airtight submerged arc furnace. A set of force sensor is installed on the supporting portion of the lower portion of each cabin of the airtight submerged arc furnace to measure the real-time total weight of the cabin in real time, then the material weight variable quantity within unit time and the furnace charge amount consumed by unit quantity of electricity within the unit time are calculated, and finally the furnace charge amount consumed by unit quantity of electricity within the unit time is compared with a set severe plugging alarming value and a slight plugging alarming value for judgment, so that whether the phenomenon of material plugging exists on a material outlet tube can be distinguished. Simultaneously, alarming and corresponding treatment can be carried out according to the distinguishing results, accurate solutions can be adopted conveniently in time, major explosion accidents caused by furnace gas leakage due to material tube blocking can be avoided, and safe and reliable operation of the airtight submerged arc furnace can be ensured.
Description
Technical field
The present invention relates to the detection method of a kind of closed submerged furnace charge storehouse material pipe plug material.
Background technology
Closed submerged stove, various resistance electric arc furnaces such as furnace of calcium carbide, ferro-alloy furnace, yellow phosphorus stove have been contained, the product of smelting has products such as calcium carbide, yellow phosphorus, ferrochrome, silicomanganese, ferronickel, corundum, ferrotianium, plumbous zinc, the core theory that it is smelted is: form directed high temperature ion stream-electric arc by furnace charge current preheating furnace charge, ionization furnace gas, convert electric energy to heat energy, for reduction reaction provides sufficiently high temperature field.
Closed submerged stove all is furnished with automatic feeding device, and main member has the storehouse that connects material on distributing device around the electrode, distributing device top binder pipe, the material pipe.Material pipe and feed bin all are to be tightly connected, and the feed, also have an important function is sealing function to its function in giving stove, prevent that the inflammable gas CO in the stove from being revealed by ease on material pipe and the feed bin, cause blast, or cause field personnel's intoxication accident.Existing closed submerged stove adopt feed bin install level-sensing device detect in the feed bin material stock what, avoid feed bin to lack the accident that material causes furnace gas to reveal and take place.This kind method can only detect the material level in the feed bin, and according to the material level height, determines reinforced time and feeding quantity, still, can't detect the problem that whether has local putty in the material pipe.When putty takes place the material pipe, can cause expecting that the sealing property of managing with feed bin descends, furnace gas still can occur from changing the problem that material pipe feed bin is revealed.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the invention provides the detection method of a kind of closed submerged furnace charge storehouse material pipe plug material, efficiently solve closed submerged stove industry and often expect to manage the difficult problem that feed bin is revealed furnace gas and is difficult to accurate judgement; Simultaneously, determine reinforced time and feeding quantity according to the real-time general assembly (TW) of feed bin material pipe.
The technical solution adopted for the present invention to solve the technical problems is: the detection method of a kind of closed submerged furnace charge storehouse material pipe plug material comprises the steps:
Step 1, a cover power sensor is installed at each feed bin lower support place of closed submerged stove;
Step 2, every cover power sensor are exported feed bin weight data electric signal in real time and are given computing machine;
Step 3, computing machine respectively overlap the feed bin of sensor groups correspondence at sampling instant T according to the magnification ratio coefficient calculations of each cover power sensor
iReal-time general assembly (TW) W
i
Step 4, be calculated as follows material weight change amount △ W in the unit interval
Material:
△ W
Material=(W
I+1– W
i)/(T
I+1-T
i);
Step 5, computing machine are according to material weight change amount △ W in the unit interval
MaterialWith the power consumption Q of mine heat furnace smelting in the same time period, the furnace charge amount △ W that be calculated as follows in the unit interval, unit quantity of electricity consumes
Consumption:
△ W
Consumption=△ W
Material/ Q;
Step 6, computing machine in the unit interval, the furnace charge amount △ W that consumes of unit quantity of electricity
ConsumptionJudge:
If the serious putty alarming value of X1 for setting, a small amount of putty alarming value of X2 for setting, and X2〉X1,
(1) as △ W
ConsumptionDuring X2, and the no putty phenomenon of explanation material pipe then, computing machine continues judgement: W
iWhether smaller or equal to the feed bin general assembly (TW) lower limit X3 that sets, if then computing machine sends reinforced signal, charging system begin to this feed bin be dosed to full till; Otherwise, return step 3;
(2) as X1＜△ W
ConsumptionDuring＜X2, then a small amount of putty phenomenon appears in explanation material pipe, and computing machine sends a small amount of putty alerting signal, sends the reduction load signal simultaneously, and alert is handled material pipe plug material; Return step 3 then;
(3) as △ W
ConsumptionDuring＜X1, then serious putty phenomenon appears in explanation material pipe, and computing machine sends serious putty alerting signal, sends the blowing out signal simultaneously, and alert is handled material pipe plug material immediately.
Compared with prior art, good effect of the present invention is: by a cover power sensor is installed at each feed bin lower support place of closed submerged stove, the real-time general assembly (TW) in real-time detecting material storehouse, calculate material weight change amount in the unit interval then, and the furnace charge amount that the unit interval is interior, unit quantity of electricity consumes, at last with in the unit interval, furnace charge amount that unit quantity of electricity consumes and the serious putty alarming value of setting, a small amount of putty alarming value compare judgement, thereby whether the identification discharge nozzle exists the putty phenomenon; Make according to recognition result simultaneously and reporting to the police and respective handling, be convenient in time take counter-measure accurately, stopped to guarantee that closed submerged stove can safe and reliable operation because material pipe plug material causes furnace gas to reveal the generation that causes the significant explosion accident.According to feed bin material pipe general assembly (TW) what, determine reinforced time of feed bin and feeding quantity simultaneously.
Embodiment
The detection method of a kind of closed submerged furnace charge storehouse material pipe plug material comprises the steps:
Step 1, install at each feed bin lower support place of closed submerged stove a cover power sensor (by be installed in four four power sensor bridges that support on the steel column of feed bin close to integrate form);
Step 2, every cover power sensor are exported feed bin weight data electric signal DC4 ~ 20mA(or DC0 ~ 5V) in real time and are given computing machine;
Step 3, computing machine respectively overlap the feed bin of sensor groups correspondence at sampling instant T according to the magnification ratio coefficient calculations of each cover power sensor
iReal-time general assembly (TW) W
i
Step 4, be calculated as follows material weight change amount △ W in the unit interval
Material:
△ W
Material=(W
I+1– W
i)/(T
I+1-T
i);
Step 5, computing machine are according to material weight change amount △ W in the unit interval
MaterialWith the power consumption Q of mine heat furnace smelting in the same time period, the furnace charge amount △ W that be calculated as follows in the unit interval, unit quantity of electricity consumes
Consumption:
△ W
Consumption=△ W
Material/ Q;
Step 6, computing machine in the unit interval, the furnace charge amount △ W that consumes of unit quantity of electricity
ConsumptionJudge:
If the serious putty alarming value of X1 for setting, a small amount of putty alarming value of X2 for setting, and X2〉X1; X2 and X1 consume historical data according to smelting furnace material in power, feed bin charging data and the stove of the hot stove in ore deposit and set.
(1) as △ W
ConsumptionDuring X2, and the no putty phenomenon of explanation material pipe then, computing machine continues judgement: W
iThe feed bin general assembly (TW) lower limit of setting smaller or equal to X3(whether), if then computing machine sends reinforced signal, charging system begin to this feed bin be dosed to full till; Otherwise, return step 3;
(2) as X1＜△ W
ConsumptionDuring＜X2, then a small amount of putty phenomenon appears in explanation material pipe, and computing machine sends a small amount of putty alerting signal, sends the reduction load signal simultaneously, and alert is handled material pipe plug material; Return step 3 then;
(3) as △ W
ConsumptionDuring＜X1, then serious putty phenomenon appears in explanation material pipe, and computing machine sends serious putty alerting signal, sends the blowing out signal simultaneously, and alert is handled material pipe plug material immediately.
Claims (3)
1. the detection method of a closed submerged furnace charge storehouse material pipe plug material is characterized in that: comprise the steps:
Step 1, a cover power sensor is installed at each feed bin lower support place of closed submerged stove;
Step 2, every cover power sensor are exported feed bin weight data electric signal in real time and are given computing machine;
Step 3, computing machine respectively overlap the feed bin of sensor groups correspondence at sampling instant T according to the magnification ratio coefficient calculations of each cover power sensor
iReal-time general assembly (TW) W
i
Step 4, be calculated as follows material weight change amount △ W in the unit interval
Material:
△ W
Material=(W
I+1– W
i)/(T
I+1-T
i);
Step 5, computing machine are according to material weight change amount △ W in the unit interval
MaterialWith the power consumption Q of mine heat furnace smelting in the same time period, the furnace charge amount △ W that be calculated as follows in the unit interval, unit quantity of electricity consumes
Consumption:
△ W
Consumption=△ W
Material/ Q;
Step 6, computing machine in the unit interval, the furnace charge amount △ W that consumes of unit quantity of electricity
ConsumptionJudge:
If the serious putty alarming value of X1 for setting, a small amount of putty alarming value of X2 for setting, and X2〉X1,
(1) as △ W
ConsumptionDuring X2, and the no putty phenomenon of explanation material pipe then, computing machine continues judgement: W
iWhether smaller or equal to the feed bin general assembly (TW) lower limit X3 that sets, if then computing machine sends reinforced signal, charging system begin to this feed bin be dosed to full till; Otherwise, return step 3;
(2) as X1＜△ W
ConsumptionDuring＜X2, then a small amount of putty phenomenon appears in explanation material pipe, and computing machine sends a small amount of putty alerting signal, sends the reduction load signal simultaneously, and alert is handled material pipe plug material; Return step 3 then;
(3) as △ W
ConsumptionDuring＜X1, then serious putty phenomenon appears in explanation material pipe, and computing machine sends serious putty alerting signal, sends the blowing out signal simultaneously, and alert is handled material pipe plug material immediately.
2. the detection method of closed submerged furnace charge according to claim 1 storehouse material pipe plug material is characterized in that: described every cover power sensor closes to integrate and forms by being installed in four four power sensor bridges that support on the steel column of feed bin.
3. the detection method of closed submerged furnace charge according to claim 1 storehouse material pipe plug material, it is characterized in that: described feed bin weight data electric signal is DC4 ~ 20mA or DC0 ~ 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183797.9A CN103245392B (en) | 2013-05-17 | 2013-05-17 | The detection method of closed submerged furnace charge storehouse material pipe plug material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310183797.9A CN103245392B (en) | 2013-05-17 | 2013-05-17 | The detection method of closed submerged furnace charge storehouse material pipe plug material |
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| CN103245392A true CN103245392A (en) | 2013-08-14 |
| CN103245392B CN103245392B (en) | 2015-08-05 |
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|---|---|---|---|
| CN201310183797.9A Expired - Fee Related CN103245392B (en) | 2013-05-17 | 2013-05-17 | The detection method of closed submerged furnace charge storehouse material pipe plug material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325308A (en) * | 2020-11-20 | 2021-02-05 | 浙江蓝太能源工程有限公司 | Stokehole fine feeding control method for melting device |
| CN113636363A (en) * | 2021-07-27 | 2021-11-12 | 三一汽车制造有限公司 | Ingredient abnormity detection method and device, mixing station and computer readable storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58198729A (en) * | 1982-05-14 | 1983-11-18 | Kawasaki Steel Corp | Measuring method of discharge weight in closed and pressurized tank for powdery and granular material |
| CN101487664A (en) * | 2009-02-12 | 2009-07-22 | 中冶长天国际工程有限责任公司 | Material flow control apparatus and method for sintered batching ore storage bin |
| CN101807062A (en) * | 2010-03-11 | 2010-08-18 | 中钢集团鞍山热能研究院有限公司 | Stock bin control system |
| CN102616551A (en) * | 2012-05-22 | 2012-08-01 | 太原理工大学 | Blockage prevention detection control device |
| CN103043340A (en) * | 2012-12-07 | 2013-04-17 | 江苏永钢集团有限公司 | Wharf steel silo loading flow monitoring system and method |
-
2013
- 2013-05-17 CN CN201310183797.9A patent/CN103245392B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58198729A (en) * | 1982-05-14 | 1983-11-18 | Kawasaki Steel Corp | Measuring method of discharge weight in closed and pressurized tank for powdery and granular material |
| CN101487664A (en) * | 2009-02-12 | 2009-07-22 | 中冶长天国际工程有限责任公司 | Material flow control apparatus and method for sintered batching ore storage bin |
| CN101807062A (en) * | 2010-03-11 | 2010-08-18 | 中钢集团鞍山热能研究院有限公司 | Stock bin control system |
| CN102616551A (en) * | 2012-05-22 | 2012-08-01 | 太原理工大学 | Blockage prevention detection control device |
| CN103043340A (en) * | 2012-12-07 | 2013-04-17 | 江苏永钢集团有限公司 | Wharf steel silo loading flow monitoring system and method |
Non-Patent Citations (2)
| Title |
|---|
| 李延民等: "煤仓低料位检测与防堵装置的研制", 《工矿自动化》 * |
| 许忠扬等: "微机控制的多路皮带秤调速定量投料系统", 《电子测量与仪器学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325308A (en) * | 2020-11-20 | 2021-02-05 | 浙江蓝太能源工程有限公司 | Stokehole fine feeding control method for melting device |
| CN113636363A (en) * | 2021-07-27 | 2021-11-12 | 三一汽车制造有限公司 | Ingredient abnormity detection method and device, mixing station and computer readable storage medium |
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| Publication number | Publication date |
|---|---|
| CN103245392B (en) | 2015-08-05 |
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Granted publication date: 20150805 Termination date: 20190517 |