CN1113519A - Continuous measuring unit for smelting process of blast furnace and method therefor - Google Patents
Continuous measuring unit for smelting process of blast furnace and method therefor Download PDFInfo
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- CN1113519A CN1113519A CN 95101055 CN95101055A CN1113519A CN 1113519 A CN1113519 A CN 1113519A CN 95101055 CN95101055 CN 95101055 CN 95101055 A CN95101055 A CN 95101055A CN 1113519 A CN1113519 A CN 1113519A
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- gauge head
- blast furnace
- measuring
- gas
- conduit
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Abstract
The continuous measuring apparatus is composed of at least 2 measuring systems that consists of probe, metallic flexible conduit, guide tube, branch pipe, thermocouple, multi-point thermodetector and gas analyzer and a back flushing system consisting of gas source and connecting pipeline. More than 2 probe distributed radically in the blast furnace drop down along with the charge to measure the radial and longitudinal temp., pressure and gas components in furnace.
Description
The invention belongs to the operation of blast furnace proofing unit.Mainly be applicable to and measure the blast furnace changing conditions of the interior parameters of its stove in process of production.
The blast-furnace smelting pig iron is a continuously process of operation, and it is that solid-state, liquid state and gaseous state three-phase are carrying out the complex physico-chemical process in an airtight container.By detecting, understand its inner solid, liquid, gas three-phase operation situation and working order, grasp it and smelt rule, make blast furnace production reach high yield, high-quality and low consumption, significant, particularly more be of practical significance for the blast furnace of implementing high oxygen enrichment big coal injection.Because of blast furnace under high oxygen enrichment big coal injection smelting condition, because load increases, simultaneously, bosh coal gas amount changes, this makes interior temperature field of stove and coal gas distributions and cohesive zone change undoubtedly, so just needs to understand the various parameters in the stove, the understanding working condition.Otherwise will bring adverse influence to furnace campaign and operation.
For this reason, the ironmaking worker has carried out a large amount of scientific researches both at home and abroad, except carrying out a large amount of laboratory studyes, also utilize dissimilar probes that part in the stove is measured, even spare no expense the blast furnace in producing is dissected research the blast furnace in producing.
" STEEL TIMES " 1988 the 4th phase the 199th～200 faces provide a kind of technology of utilizing temperature, gas and pressure parameter in the probe measurement State of Blast Furnace.It is the hole of holing from outside to inside from the side wall of blast furnace, then probe is inserted temperature, gas and the pressure measured in the stove in the stove.This method punches from the limited position boring of blast furnace side wall, measures, so the data of measuring can only be the parameters of the fixed position of horizontal direction.Aforesaid method still has its limitation, all can't to the high furnace interior under the production status vertically and radially each point measure parameters more continuously and change, as the distribution of temperature field in furnace, pressure field, Changing Pattern and utilization ratio, the speed of material descent etc. of gas composition, and the mutual relationship between them etc.
The object of the present invention is to provide and a kind ofly can measure longitudinally and the radially blast furnace ironmaking process continuous measuring device and the method that change of the parameters such as temperature, pressure, gaseous constituent of each point of high furnace interior continuously.
The technical scheme of blast furnace ironmaking process method for continuous measuring of the present invention is as follows:
At first form measuring system by gauge head, heating resisting metal flexible pipe, conduit, arm, thermopair, temperature measurer, pressure measurement and gas analysis apparatus; the gauge head of measuring system and the heating resisting metal flexible pipe that is attached thereto stretch in the State of Blast Furnace by protective casing by in the hole pre-drilled on the following side wall of blast furnace top bell.The measuring system that stretches in the State of Blast Furnace is more than two groups at least, promptly has at least plural gauge head to be distributed in radially different sites of blast furnace, so just can measure the parameter of the interior Different Diameter of stove to the position; Because the continuous adding of blast furnace burden, the gauge head that puts in the stove is then buried by furnace charge, and along with the continuous fusing decline of furnace charge, gauge head and the metallic hose that is attached thereto also descend thereupon.Along with the continuous decline of gauge head, then measure in the stove longitudinally the not parameter of coordination portion serially.The hot junction of the thermopair that thermometric is used is contained in the gauge head, and cold junction is connected on the multi-point temperature measurement instrument by compensation wire, can measure the temperature of each point continuously for this reason; Gas in the stove enters pressure measurement and gas analysis apparatus by gauge head, metallic hose, conduit and arm, gathers the coal gas sample, and the analytical gas composition is measured furnace inner gas pressure simultaneously then.Because organizing probe more, radial distribution vertically constantly descends, so just can be in the smelting process of blast furnace, understand distribution, gas composition Changing Pattern and the speed of material descent etc. of temperature field in furnace, pressure field, being convenient to control and in time adjusting has related parameter, makes it to reach the good quality and high output low consumption.
The present invention has connected source of the gas in the stove outer end of measuring system by conduit in order to guarantee the unimpeded and stable of measuring system, forms blowback system.When measuring system hinders barrier, connect source of the gas, make gas enter conduit, the metallic hose of measuring system by conduit, until gauge head, utilize gas to eliminate and hinder barrier, make measuring system unimpeded.
Now, blast furnace ironmaking process continuous measuring device of the present invention and method are described further by accompanying drawing.
Accompanying drawing 1 is blast furnace ironmaking process continuous measuring device synoptic diagram of the present invention.
Accompanying drawing 2 and 3 is longitudinally coal gas and a temperature profile in the blast furnace ironmaking process.
Accompanying drawing 4 is furnace charge downcurve figure in the blast furnace ironmaking process.
Accompanying drawing 5 is a State of Blast Furnace internal pressure distribution plan.
In accompanying drawing 1,1 is blast furnace, and A is a gauge head, and 2 is the heating resisting metal flexible pipe; 3 is protective casing, and 4 is sealing-ring, and 5 is dolly, and 6 is drive-motor; 7 is guide plate, and 8 is pulley, and 9 is guide rail, and 10 is thermocouple wire or compensating lead wire; 12,13 is arm, and 14,15,16,17 is valve, and 18 is the multi-point temperature measurement instrument; 19 for pressure measurement and gas analysis apparatus, and 20 for returning the air blowing source, and 21 lead mouth for protective casing; 22 is the belt chain, and 23 is conduit, and 24 is the hole on the side wall of blast furnace top.
Wherein, gauge head A is the cavity of porous, and communicating with metal hose 2 links to each other; Metal hose 2 passes protective casing 3, and protective casing 3 is fixed on again on the dolly 5, and dolly 5 links to each other with drive motors 6 with pulley 8 by belt chain 22; Conduit 23 joins with metal hose 2; One end and the conduit 23 of pipe 12,13 join, and the other end links to each other with pressure measurement and gas analyzing apparatus 19; The hot junction of thermocouple 10 is contained in the gauge head A, and cold junction or compensating wire link to each other with multi-point thermo detector; Blowback source of the gas 20 also links to each other with conduit 23 by arm 12,13; The top at blast furnace is opened in hole 24 on the blast furnace side wall.
Form temp measuring system by gauge head A, metal hose 2, conduit 23, thermocouple 10 and multi-point thermo detector 18; By gauge head A, metal hose 2, conduit 23, arm 12,13 and pressure measurement and gas analyzing apparatus 19 form pressure measurement and gas analysis system; By gauge head A, metal hose 2, conduit 23, arm 12,13 and return air blowing source 20 and form blowback system. Be that gauge head A links to each other with temp measuring system, pressure measurement and gas analysis system, blowback system respectively.
Have the i.e. two groups of above measuring systems of plural gauge head A at least. A plurality of gauge head A lead mouth 21 along the blast furnace radial distribution by protective casing 4.
Form the seal protection system by sealing ring 4, protective casing 3.
Form transfer system by drive motors 6, dolly 5, pulley 8, belt chain 22.
Concrete measuring method is as follows:
The measuring system that elder generation is made up of gauge head A, metallic hose 2, conduit 23, arm 12,13, thermopair 10 and multi-point temperature measurement instrument 18, pressure measurement and gas analysis apparatus 19; then gauge head A and metallic hose 2 are placed in the protective casing 4; open drive-motor 6 and drive dolly 5; gauge head A and metallic hose 2 are sent in the blast furnace by the side wall hole 24 on blast furnace top with protective casing 4, and a plurality of gauge head A are respectively by the radially different sites that mouth 21 enters blast furnace of leading on the protective casing 4.
By gauge head A
1, A
2, open multi-point temperature measurement instrument 18, can measure gauge head A
1, A
2The temperature of position is opened pressure measurement and gas analysis apparatus, Open valve 14, and valve-off 15 then can be measured gauge head A
1The air pressure of position reaches the composition to gas; Open valve 15, close, then can go out gauge head A for door 14
2The stove internal gas pressure of position and the composition of gas.
After gauge head A enters in the blast furnace by blast furnace top, owing to constantly add furnace charge, make it to be embedded in the furnace charge, along with the continuous decline of furnace charge, gauge head A also descends thereupon.Along with gauge head A
1, A
2Continuous decline, then can measure in the blast furnace different radial positions longitudinally temperature, gaseous tension and the gaseous constituent of (blast furnace short transverse) each point continuously.
As needs blowback gauge head A
1When reaching tie-in amount system of institute, then open valve 16, open source of the gas 20, then can realize.Blowback gauge head A
2When reaching tie-in amount system of institute, open valve 17 and source of the gas 20, then can reach blowback.
The present invention compared with prior art, its major advantage is the distribution that can longitudinally measure temperature, gaseous tension and gas composition in different radial positions continuously, can be at any time with grasp the temperature field in the stove, the variation of coal gas distributions, be beneficial to the smelting process of control blast furnace.Measuring apparatus of the present invention in addition is simple in structure, is easy to realize and operation.
Embodiment.
According to the method for blast furnace ironmaking process continuous measuring device of the present invention, at 120 meters
3Blast furnace on carried out twice continuously measured work.At first on the side wall under this blast furnace top bell, open a hole; then with gauge head; metallic hose; rubber hose; conduit; thermopair and multi-point temp instrument; pressure measurement and gas analysis apparatus are formed measuring system; and gauge head and metallic hose placed protective casing; by protective casing gauge head is sent in the blast furnace; continuous decline along with blast furnace burden; gauge head also constantly descends; multi-point temp instrument and pressure measurement and gas analysis apparatus are then measured continuously along the temperature of height each point; gas composition; gaseous tension and speed of material descent, its result lists Fig. 2 respectively in; Fig. 3; Fig. 4 and Fig. 5.
In Fig. 2 and Fig. 3, abscissa has three marks, be respectively temperature (℃), CO and CO
2Gas content (%); Ordinate is a height, and the position that this height is led mouth 21 with protective casing is 0 point (basic point), puts computed altitude vertically downward thus.Curve T, CO and CO among Fig. 2 and Fig. 3
2Be respectively measured temperature, CO and the CO of first, second time of embodiment test
2Gaseous constituent is along the distribution curve of height.
Among Fig. 4, abscissa be the time (minute), ordinate is speed of material descent (rice/10 minutes), curve b
1, b
2Be respectively the first time, test measured speed of material descent for the second time.
Among Fig. 5, abscissa is gaseous tension (KPa/cm
2), ordinate is a height (m), and is the same with ordinate implication among Fig. 2,3.Among the figure, curve C
1, C
2Be respectively embodiment for the first time, test measured pressure distribution curve for the second time.
Claims (5)
1, a kind of blast furnace ironmaking process continuous measuring device comprises gauge head and testing tool, it is characterized in that:
[1], this device is made up of temp measuring system, pressure measurement and gas analysis system, blowback system, tightness system and transfer system; And by gauge head (A), metallic hose (2), conduit (23) and arm (12,13) multi-point temperature measurement instrument (18), pressure measurement and gas analysis apparatus (19) are connected as a single entity, form measuring system;
[2], form temp measuring system by gauge head (A), metallic hose (2), conduit (23), thermopair (10) and multi-point temperature measurement instrument (18);
[3], form pressure measurement and gas analysis system by gauge head (A), metallic hose (2), conduit (23), arm (12,13) and pressure measurement and gas analysis apparatus (19);
[4], form blowback system by gauge head (A), metallic hose (2), conduit (23), arm (16,17) and source of the gas (20);
[5], form the seal protection system by sealing-ring (4) and protective casing (3);
[6], form transfer system by drive-motor (6), dolly (5), pulley (8), belt chain (22);
[7], protective casing (3) is fixed on the dolly (5), dolly (5) links to each other with drive-motor by belt chain (22), pulley (8).
2, measuring apparatus according to claim 1 is characterized in that having at least plural gauge head, i.e. two groups of above measuring systems.
3, measuring apparatus according to claim 1, the front end that it is characterized in that protective casing (4) have downward lead mouthful (21) more than 2.
4, a kind of blast furnace ironmaking process method for continuous measuring that utilizes the described survey device of claim 1 comprises and utilizes gauge head and testing instrument, it is characterized in that:
[1], adopted the measuring system formed by gauge head (A), metallic hose (2), conduit (23), arm (12,13), thermopair (10), temperature measurer (18), pressure measurement and gas analysis apparatus to measure in the blast furnace radially and temperature, gaseous tension and gas composition longitudinally;
[2], gauge head (A) is sent in the blast furnace by blast furnace upper side porthole (24) with protective casing (4) with metallic hose (2);
[3], plural gauge head (A) radially distributes in blast furnace;
[4], gauge head (A) longitudinally descends with furnace charge in blast furnace;
5, measuring method according to claim 4 is characterized in that utilizing blow-back to eliminate the barrier that hinders of the interior existence of measuring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95101055A CN1041217C (en) | 1995-01-11 | 1995-01-11 | Continuous measuring unit for smelting process of blast furnace and method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95101055A CN1041217C (en) | 1995-01-11 | 1995-01-11 | Continuous measuring unit for smelting process of blast furnace and method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1113519A true CN1113519A (en) | 1995-12-20 |
| CN1041217C CN1041217C (en) | 1998-12-16 |
Family
ID=5073767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95101055A Expired - Fee Related CN1041217C (en) | 1995-01-11 | 1995-01-11 | Continuous measuring unit for smelting process of blast furnace and method therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041217C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718594B (en) * | 2009-11-30 | 2011-01-26 | 南京钢铁股份有限公司 | Multifunctional internal tester of flame furnace |
| CN102690916A (en) * | 2012-06-19 | 2012-09-26 | 冶金自动化研究设计院 | Real-time monitoring system and method of CO2 discharging amount of blast furnace |
| CN103833036A (en) * | 2014-01-08 | 2014-06-04 | 福建兴朝阳硅材料股份有限公司 | Low-cost method for corundum crucible slagging and boron removal |
| CN111664957A (en) * | 2020-07-13 | 2020-09-15 | 广东韶钢松山股份有限公司 | Temperature detection system and method for detecting temperature of material column in blast furnace body |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU836106A1 (en) * | 1979-01-05 | 1981-06-07 | Институт черной металлургии | Sound of blast furnace |
| SU1250577A1 (en) * | 1984-04-18 | 1986-08-15 | Киевское Научно-Производственное Объединение "Аналитприбор" | Gas-analytic system for checking gas composition on blast furnace radii |
| SU1328382A2 (en) * | 1985-12-16 | 1987-08-07 | Институт черной металлургии | Probe for measuring temperature in blast furnace shaft |
-
1995
- 1995-01-11 CN CN95101055A patent/CN1041217C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718594B (en) * | 2009-11-30 | 2011-01-26 | 南京钢铁股份有限公司 | Multifunctional internal tester of flame furnace |
| CN102690916A (en) * | 2012-06-19 | 2012-09-26 | 冶金自动化研究设计院 | Real-time monitoring system and method of CO2 discharging amount of blast furnace |
| CN102690916B (en) * | 2012-06-19 | 2013-07-31 | 冶金自动化研究设计院 | Real-time monitoring system and method of CO2 discharging amount of blast furnace |
| CN103833036A (en) * | 2014-01-08 | 2014-06-04 | 福建兴朝阳硅材料股份有限公司 | Low-cost method for corundum crucible slagging and boron removal |
| CN103833036B (en) * | 2014-01-08 | 2016-05-11 | 福建兴朝阳硅材料股份有限公司 | A kind of method of low cost corundum crucible slagging boron removal |
| CN111664957A (en) * | 2020-07-13 | 2020-09-15 | 广东韶钢松山股份有限公司 | Temperature detection system and method for detecting temperature of material column in blast furnace body |
| CN111664957B (en) * | 2020-07-13 | 2022-10-14 | 广东韶钢松山股份有限公司 | Temperature detection system and method for detecting temperature of material column in blast furnace body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041217C (en) | 1998-12-16 |
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