CN103884617A - Device for dynamically detecting weight loss of coke reaction - Google Patents
Device for dynamically detecting weight loss of coke reaction Download PDFInfo
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- CN103884617A CN103884617A CN201410114057.4A CN201410114057A CN103884617A CN 103884617 A CN103884617 A CN 103884617A CN 201410114057 A CN201410114057 A CN 201410114057A CN 103884617 A CN103884617 A CN 103884617A
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Abstract
The invention provides a device for dynamically detecting the weight loss of a coke reaction. According to the device, a reactor is suspended in an electric furnace by a hook; the hook is suspended on a mounting frame; the mounting frame is placed on an electronic scale. Coke, nitrogen and carbon dioxide react in the reactor; the electric furnace is used for keeping the coke in the reactor at temperature needed by reaction in a blast furnace, so that the device can simulate a dynamic condition of the coke reaction in the blast furnace and the dynamic detection on the weight loss condition of the reaction is realized when thermal state performance detection on the coke for the blast furnace is carried out; furthermore, an actual reaction condition of the coke in the blast furnace can be really reflected and a change principle of the coke can be intuitively reflected, so as to provide guide effects on the operation of the blast furnace.
Description
Technical field
The present invention relates to a kind of device of detection of dynamic coke gasification reaction weightlessness, by this pick-up unit, blast furnace coke is carried out to hot performance and react weightless detection of dynamic.
Background technology
The coke that blast furnace ironmaking uses, enters stokehold and generally need to carry out hot performance detection.At present, conventional pick-up unit is that the pressure environment in atmospheric pressure state or analog blast furnace stove detects, and this detection method can only record a result data.Therefore, can not clearly reflect the real reaction situation of coke in blast furnace, even can not judge well the variation that coke occurs in smelting process, sometimes coke quality has declined, it detects index and but reflects not obviously, particularly when coke quality degradation, can cause conditions of blast furnace not normal, and cannot analyze afterwards clear, the existing weak point of prior art that Here it is.
Summary of the invention
The technical problem to be solved in the present invention, be exactly for the existing deficiency of prior art, and provide a kind of device of detection of dynamic coke gasification reaction weightlessness, by the detection of this device, can reflect intuitively the current intelligence of coke in high reaction in furnace, so that better for blast furnace operating provides valuable reference, instruct better coking to produce.
This programme is achieved by the following technical measures: the device of this detection of dynamic coke gasification reaction weightlessness comprises and is placed on the reactor in electric furnace and is placed on the electronic scales on support, electric furnace is stretched out in the upper end of reactor, on described reactor, be connected with draft tube and escape pipe, on electronic scales, be placed with erecting frame, the upper end of described reactor is connected with hook, and hook is suspended on erecting frame.
Above-mentioned erecting frame comprises crossbeam, vertical beam and triangle crossbeam, and the lower end of vertical beam is fixedly connected with crossbeam, upper end is fixedly connected with triangle crossbeam.
The lower end of above-mentioned support is fixedly connected with shockproof plank, and to prevent that support, electronic scales and reactor from rocking, thereby guarantee detects the accuracy of data.
The upper end of above-mentioned reactor leads to thermopair, by the temperature in thermopair Real-Time Monitoring reactor, to ensure that the temperature in reactor remains at the needed temperature of reaction, ensures to react and can normally and fully carry out.
In above-mentioned draft tube, be provided with flowmeter, by the accurate reacting gas entering in reactor of controlling of flowmeter.
Above-mentioned flowmeter is connected with respectively nitrogen cylinder and carbon dioxide cylinder by flexible pipe, reacts needed gas by nitrogen cylinder and carbon dioxide cylinder for reactor provides.
The upper cover of above-mentioned reactor is apart from the table 22-28mm of electric furnace, preferably 25mm; The upper end of support is apart from the table 480-520mm of electric furnace, preferably 500mm, and for refractory brick reserves thermal expansion space, on the other hand, the spacing of 500mm can ensure that thermopair has enough spaces, is also unlikely to make electronic scales to cross heat affecting accuracy on the one hand.
Below above-mentioned electronic scales, be lined with insulating brick, to prevent that electric furnace from exerting an influence to the performance of electronic scales.The range of electronic scales is 0-15Kg, and error is ± 0.2g.
Between above-mentioned reactor and electric furnace, adopt insulating brick insulation, to reduce scattering and disappearing of electric furnace heat, maintain constant temperature of reaction with the reactor that ensures to be suspended in electric furnace.
The beneficial effect of this programme can learn according to the narration to such scheme, and in the device of this detection of dynamic coke gasification reaction weightlessness, reactor is suspended in electric furnace by hook, and hook is suspended on erecting frame, and erecting frame is placed on electronic scales.Coke and carbon dioxide react in reactor, electric furnace makes to maintain coke in the needed temperature of high reaction in furnace in reactor, thereby make this device can analog blast furnace stove in the current intelligence of coke gasification reaction, realize the detection of dynamic of blast furnace coke being carried out to the weightless situation of reacting when hot performance detects, therefore, can reflect more truly the real reaction situation of coke in blast furnace, can reflect intuitively the Changing Pattern of coke, provide directive function to blast furnace operating.As can be seen here, the present invention compared with prior art, has outstanding substantive distinguishing features and significant progressive, and the beneficial effect of its enforcement is also apparent.
Brief description of the drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the curve map that 89# coke and 125# coke carry out constant temperature test at 1100 DEG C.
Fig. 3 is the curve map that 89# coke, 125# coke and the 89# coke picked carry out caloric test.
In figure, 1-electric furnace, 2-reactor, 3-thermopair, 4-draft tube, 5-escape pipe, 6-hook, 7-bolt, 8-insulating brick, 9-flowmeter, 10-support, 11-insulating brick, 12-electronic scales, 13-triangle crossbeam, 14-vertical beam, 15-crossbeam, 16-insulating brick, 17-bolt, the shockproof plank of 18-;
A-flexible pipe, b-flexible pipe, c-nitrogen cylinder, d-carbon dioxide cylinder, e-reduction valve;
The loss of weight amount of A-125# coke, the loss of weight amount of B-89# coke, the loss of weight amount of the 89# coke that C-picks.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
A kind of device of detection of dynamic coke gasification reaction weightlessness, as shown in Figure 1, it comprises the reactor 2 being placed in electric furnace 1 and is placed on the electronic scales 12 on support 10, is lined with insulating brick 11 below electronic scales 12, and insulating brick 11 is positioned on support 10, the range of electronic scales 12 is 0-15Kg, error is ± 0.2g, in order to ensure the true property of number of data, to be fixedly connected with shockproof plank 18 in the lower end of support 10, by shockproof plank 18 damping vibrations, to prevent that shaking the device 2 that induces reaction rocks.
Electric furnace 1 is stretched out in the upper end of reactor 2, make reactor 2 keep being suspended on the state in electric furnace 1, the upper end of described reactor 2 leads to thermopair 3, measure in real time the temperature in reactor 2 by thermopair 3, on reactor 2, be connected with draft tube 4 and escape pipe 5, specifically, draft tube 4 is connected with the lower end of reactor 2, escape pipe 5 is connected with the upper end of reactor 2, make carbon dioxide and coke, under the protective effect of nitrogen, chemical reaction can fully occur, in draft tube 4, be provided with flowmeter 9, flowmeter 9 is connected with respectively nitrogen cylinder c and carbon dioxide cylinder d by the flexible pipe b with reduction valve e and flexible pipe a, nitrogen cylinder c and carbon dioxide cylinder d react needed nitrogen and carbon dioxide for reactor 2 provides, and accurately control by flowmeter 9 nitrogen and the carbon dioxide that enter in reactor 2.
On electronic scales 12, be placed with erecting frame, this erecting frame comprises crossbeam 15, vertical beam 14 and triangle crossbeam 13, and the lower end of vertical beam 14 is fixedly connected with crossbeam 15, upper end is connected with triangle crossbeam 13 by adjusting bolt 17, and triangle crossbeam 13 lies in a horizontal plane on electronic scales 12.The upper end of described reactor 2 is connected with metal hanger 6, on hook 6 crossbeams 15 that are suspended in erecting frame, the upper cover of reactor 2 is fixedly connected with by the bolt 7 of band with the housing of reactor 2, the lower end of hook 6 hangs on the bolt 7 of band, thereby by linking up with 6, reactor 2 is suspended in electric furnace 1, between reactor 2 and electric furnace 1, adopt insulating brick 8 and insulating brick 16 to be incubated, in the time that the coke in reactor 2 reacts its mass change, on electronic scales 12, show in real time the variation of data.
The upper cover of reactor 2 is apart from the table 22-28mm of electric furnace 1, preferably 25mm, the upper end of support 10 is apart from the table 480-520mm of electric furnace 1, preferably 500mm, on the one hand for refractory brick reserves thermal expansion space, on the other hand, the spacing of 500mm can ensure that thermopair has enough spaces, is also unlikely to make electronic scales to cross heat affecting accuracy.
When detection, nitrogen cylinder c and carbon dioxide cylinder d to the interior supplying nitrogen of reactor 2 and carbon dioxide, and monitor the flow of nitrogen and carbon dioxide by flexible pipe b and flexible pipe a by flowmeter 9.The furnace chamber of electric furnace 1 is by fireproof insulation brick 16 sealing thermal insulations, the inner chamber of reactor 2 is by insulating brick 8 sealing thermal insulations, make reactor 2 maintain the needed temperature of reaction, carbon dioxide and coke generation chemical reaction, in course of reaction, the weight change of reactor 2 entirety shows in real time on electronic scales 12, reflects the dynamic change of coke gasification reaction by the variation of data.
Choose 89# coke and 125# coke and in reactor, carry out constant temperature test, temperature of reaction is 1100 DEG C, and its experimental result as shown in Figure 2.
Choose 89# coke and 125# coke is tested in reactor, temperature of reaction is 1200 DEG C, and test findings is as follows:
The 89# coke of choosing 89# coke, 125# coke and pick carries out caloric test in reactor, test structure as shown in Figure 3:
Wherein, 89# coke is 700 DEG C in the temperature of reaction of 0-6min, is 800 DEG C in the temperature of reaction of 8-20min, is 900 DEG C in the temperature of reaction of 22-32min, is 1000 DEG C in the temperature of reaction of 34-56min, is 1100 DEG C in the temperature of reaction of 58-300min;
125# coke is 700 DEG C in the temperature of reaction of 0-6min, is 800 DEG C in the temperature of reaction of 8-16min, is 900 DEG C in the temperature of reaction of 18-32min, is 1000 DEG C in the temperature of reaction of 34-58min, is 1100 DEG C in the temperature of reaction of 60-300min;
The 89# coke of picking is 700 DEG C in the temperature of reaction of 0-6min, is 800 DEG C in the temperature of reaction of 8-14min, is 900 DEG C in the temperature of reaction of 16-28min, is 1000 DEG C in the temperature of reaction of 30-52min, is 1100 DEG C in the temperature of reaction of 54-300min.
The test findings of the coke of choosing different model in a period of time in reactor, test figure is as follows:
Above-mentioned data declaration: by this device, detected online coke strenth loss speed and coke gasification reaction speed; When online detection, when coke weightless 25%, experiment stops, and from table, data see that coke strenth loss speed is large, and reaction rate is very fast, and meanwhile, from analysis of experimental data, 67# coke strenth loss speed is relatively high, and 125# coke gasification reaction speed is relatively very fast.
The advantage of technical solution of the present invention: this device can analog blast furnace stove in the current intelligence of coke gasification reaction, blast furnace coke is carried out to the detection of dynamic of the weightless situation of reacting when hot performance detects, therefore, can reflect more truly the real reaction situation of coke in blast furnace, can reflect intuitively the Changing Pattern of coke, provide directive function to blast furnace operating, be conducive to reduce or avoid conditions of blast furnace not normal, be conducive to improve the economic benefit of blast furnace.
In the present invention, can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned embodiment; variation, remodeling, interpolation or replacement that those of ordinary skill in the art makes in essential scope of the present invention, also should belong to protection scope of the present invention.
Claims (9)
1. the device of a detection of dynamic coke gasification reaction weightlessness, it is characterized in that: it comprises and is placed on the reactor in electric furnace and is placed on the electronic scales on support, electric furnace is stretched out in the upper end of reactor, on described reactor, be connected with draft tube and escape pipe, on electronic scales, be placed with erecting frame, the upper end of described reactor is connected with hook, and hook is suspended on erecting frame.
2. the device of detection of dynamic coke gasification reaction weightlessness according to claim 1, is characterized in that: described erecting frame comprises crossbeam, vertical beam and triangle crossbeam, and the lower end of vertical beam is fixedly connected with crossbeam, upper end is fixedly connected with triangle crossbeam.
3. the device of detection of dynamic coke gasification reaction weightlessness according to claim 2, is characterized in that: the lower end of described support is fixedly connected with shockproof plank.
4. the device of detection of dynamic coke gasification reaction weightlessness according to claim 3, is characterized in that: the upper end of described reactor leads to thermopair.
5. the device of detection of dynamic coke gasification reaction weightlessness according to claim 4, is characterized in that: in described draft tube, be provided with flowmeter.
6. the device of detection of dynamic coke gasification reaction weightlessness according to claim 5, is characterized in that: described flowmeter is connected with respectively nitrogen cylinder and carbon dioxide cylinder by flexible pipe.
7. the device of detection of dynamic coke gasification reaction weightlessness according to claim 5, is characterized in that: the upper cover of described reactor is apart from the table 22-28mm of electric furnace, and the upper end of support is apart from the table 480-520mm of electric furnace.
8. the device of detection of dynamic coke gasification reaction weightlessness according to claim 5, is characterized in that: below described electronic scales, be lined with insulating brick, the range of electronic scales is 0-15Kg, and error is ± 0.2g.
9. the device of detection of dynamic coke gasification reaction weightlessness according to claim 8, is characterized in that: between described reactor and electric furnace, adopt insulating brick insulation.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018155A (en) * | 2016-08-16 | 2016-10-12 | 王宏铭 | System for evaluating nickel catalyst inactivation performance |
| CN106053280A (en) * | 2016-06-12 | 2016-10-26 | 东南大学 | Micro fixed-bed reactor capable of realizing online thermal-state weighing and method |
| CN107860680A (en) * | 2017-12-19 | 2018-03-30 | 武汉钢铁有限公司 | A kind of blast-furnace tuyere Jiao granularmetric composition and the analysis method of slag hold-up |
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| CN202599779U (en) * | 2012-05-17 | 2012-12-12 | 重庆科技学院 | Iron ore reduction, pulverization and expansion metallurgy properties test device |
| CN203929549U (en) * | 2014-03-26 | 2014-11-05 | 济钢集团有限公司 | A kind of device of detection of dynamic coke gasification reaction weightlessness |
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2014
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Patent Citations (7)
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| JPS6153556A (en) * | 1984-08-22 | 1986-03-17 | Mitsubishi Electric Corp | Thermogravimetric analyzer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053280A (en) * | 2016-06-12 | 2016-10-26 | 东南大学 | Micro fixed-bed reactor capable of realizing online thermal-state weighing and method |
| CN106053280B (en) * | 2016-06-12 | 2019-09-03 | 东南大学 | A kind of miniature fixed-bed reactor that hot online weighing can be achieved and method |
| CN106018155A (en) * | 2016-08-16 | 2016-10-12 | 王宏铭 | System for evaluating nickel catalyst inactivation performance |
| CN107860680A (en) * | 2017-12-19 | 2018-03-30 | 武汉钢铁有限公司 | A kind of blast-furnace tuyere Jiao granularmetric composition and the analysis method of slag hold-up |
| CN107860680B (en) * | 2017-12-19 | 2020-07-03 | 武汉钢铁有限公司 | Analysis method for blast furnace tuyere coke granularity composition and slag retention |
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Application publication date: 20140625 |