CN106053285A - Apparatus for detecting high-temperature thermal properties of coke - Google Patents
Apparatus for detecting high-temperature thermal properties of coke Download PDFInfo
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- CN106053285A CN106053285A CN201610364009.XA CN201610364009A CN106053285A CN 106053285 A CN106053285 A CN 106053285A CN 201610364009 A CN201610364009 A CN 201610364009A CN 106053285 A CN106053285 A CN 106053285A
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- coke
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
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Abstract
The invention discloses an apparatus for detecting high-temperature thermal properties of coke, comprising an electronic balance and a furnace body reversely placed on the electronic balance; a heater and a reactor are disposed in the furnace body; the reactor comprises a crucible; a screen plate, high-aluminum balls and coke are arranged sequentially from bottom to top in the crucible; the lower end of the crucible is provided with an intake pipe that is connected respectively with a first pipe and a second pipe, the first pipe is connected respectively with CO, CO2 and N2 sources, and the N2 source is connected with the second pipe; a first thermocouple is vertically disposed in the center of the reactor, the sidewall of the furnace body is provided with a second thermocouple; the first thermocouple and the second thermocouple transmit acquired temperatures to a control system; the control system monitors in real time weighing data of the electronic balance; the furnace body is lifted through a lifting mechanism. The apparatus can detect thermal properties of coke at a segment of less than 1600 DEG C below a blast furnace cohesive zone.
Description
Technical field
The invention belongs to metallurgical coking technology field, be specifically related to a kind of hot quality detecting device of coke high-temperature, for Jiao
The detection of charcoal high-temperature hot character.
Background technology
In steel and iron industry, coke plays the important function of reducing agent, thermal source and skeleton.Therefore, along with blast furnace technology
Development, the requirement of Coke Quality gradually rises.By (usual to coke cold strength and coke hot performance in coking industry
Represent with reactive CRI and post reaction strength CSR) as the important indicator of measurement coke quality, especially with blast furnace
Maximize, improve coke property and become an important topic.
At present, what each iron-smelter was widely used is to characterize coke in blast furnace from CRI, CSR index of Japan's introduction
Thermal property, CRI, CSR index is to propose under the background of full coke for smelting.Along with the development in epoch, blast furnace have employed injection coal
Technology and coal powder injection ratio are more and more higher.After maximizing along with the increase of injecting coal quantity and blast furnace, CRI, CSR index STRENGTH ON COKE is at height
Deterioration process simulation in stove is worse and worse.
The brainstrust of iron industry is all trying to explore new thermal property of coke quality index in recent years, but by condition, hands
Section is limited, and is only limitted to more than blast furnace the soft melt zone hot and cold state experimental of 1100 DEG C of temperature below section coke, and to height
The smelting behavior few people that high-temperature area coke below stove soft melt zone is showed take into account.Therefore, we are in the urgent need to one
The hot quality detecting device of new coke high-temperature, to detect the thermal property of the high-temperature area coke of below blast furnace soft melt zone, to fill up
Domestic in this blank on the one hand.
Summary of the invention
It is an object of the invention to provide a kind of hot quality detecting device of coke high-temperature, this device can to blast furnace soft melt zone with
The hot performance of lower 1600 DEG C of temperature below section coke detects.
The technical solution adopted in the present invention is:
A kind of hot quality detecting device of coke high-temperature, including electronic balance and the body of heater tipped upside down on electronic balance；Described
Heater and reactor it is provided with in body of heater；
Described reactor includes crucible；Sieve plate, high aluminium ball, coke it is sequentially provided with from the bottom up in described crucible；Crucible
Lower end is provided with air inlet pipe, and air inlet pipe is connected with 1# pipeline, 2# pipeline respectively, 1# pipeline respectively with CO, CO2、N2Source of the gas connects, institute
State N2Source of the gas is connected with 2# pipeline；
It is vertically provided with the first thermocouple at the center of reactor, the sidewall of body of heater is provided with the second thermocouple；The
One thermocouple, the second thermocouple by gather temperature transfer to control system；Control system monitors weighing of electronic balance in real time
Data；
Described body of heater is lifted by elevating mechanism.
In course of reaction, control system real-time reception the first thermocouple, the temperature data of the second thermocouple, control to heat up；
Control system monitors the weight of electronic balance in real time, draws the weight-loss ratio curve of coke, weight loss rate curve, calculates coke
Initial reaction temperature, vigorous reaction temperature, real-time weight-loss ratio, weight loss rate；After experiment terminates, it is cooled to room temperature, takes out coke
Carry out rotating drum experiments, calculate intensity after rotary drum.
Further scheme is, described body of heater includes furnace shell and is positioned at the thermal insulator of furnace shell.
Further scheme is, described thermal insulator is made up of glass fibre cotton.
Further scheme is, described heater is Si-Mo rod, and this Si-Mo rod is circumferentially provided on the outside of reactor.
Further scheme is, described reactor is vertically arranged with electronic balance.
Further scheme is, described elevating mechanism includes that base, base are provided with column, and column is provided with lifting
Frame, crane is suitable with the elevating bracket on body of heater, and crane is connected with screw lifting device, and screw lifting device drives lifting
Frame moves, and crane drives body of heater to move up and down.
Further scheme is, a diameter of 10cm of described high aluminium ball.
Further scheme is, described 1# pipeline is provided with blending tank.
Further scheme is, described CO, CO2、N2The outfan of source of the gas is provided with effusion meter.
Further scheme is, the range of described electronic balance is 10kg, and weighing precision is 0.1g.
Further scheme is, is provided with fixing supporting plate between electronic balance and body of heater.
The beneficial effects of the present invention is:
The hot performance of 1600 DEG C of temperature below section coke below blast furnace soft melt zone can be detected；
Coke (room temperature～1600 DEG C) under hot weighs basically identical with (room temperature) weighing result under cold conditions, it is possible to monitoring
The real-time deterioration process of coke under high temperature；
The initial reaction temperature of coke, vigorous reaction temperature can be measured, using as characterizing blast furnace indirect reduction district with straight
Connect the coke quality index of reducing zone change；
The thermal property of coke under different weight-loss ratio can be measured, to characterize the coke quality index under different rate of driving；
Can be with gas change in analog blast furnace, the impact of furnace temperature change STRENGTH ON COKE thermal property；
Using Si-Mo rod as heater, resistant to elevated temperatures glass fibre cotton does thermal insulator, makes body of heater can be heated to 1600
DEG C, and its temperature can be kept；
Employing range is 10kg, and weighing precision is the electronic balance of 0.1g, to reduce weighing error；Electronic balance is placed in
Lower portion of furnace body, and separated by fixing supporting plate, the impact that balance is weighed by variations in temperature can be reduced, improve the use of electronic balance
Life-span；
Reactor is vertically fallen within electronic balance, utilizes screw lifting device to promote body of heater, can not only conveniently fill sample, take
Sample, moreover it is possible to reduce reactor and rock the impact that balance is weighed, improve accuracy in detection；
Use CO, CO2、N2Gas cylinder is as source of the gas, and three kinds of gases control its flow by effusion meter, when experiment starts respectively
Use 1# gas handling system (connection 1# pipeline), be passed through reactor after being mixed by blending tank as reacting gas, reaction knot
It is immediately switched to 2# gas handling system (connection 2# pipeline) after bundle and is passed through protective gas N2, it is to avoid the tail gas in blending tank is to experiment knot
The impact of fruit；
First thermocouple gathers reactor center temperature, and the second thermocouple gathers sidewall of the furnace body temperature, and the temperature that will gather
Degrees of data passes to control system, and the temperature data that control system transmits according to the first thermocouple and the second thermocouple accurately controls
Heater generates heat, thus realizes the accurate control of stove body temperature, improves experiment accuracy；
Adding the high aluminium ball of a diameter of 10cm on sieve plate in reactor, sieve plate can make the reacting gas of entrance reactor
Being evenly distributed, high aluminium ball carries out quadratic distribution to the reacting gas entered in reactor, to improve the uniformity of gas distribution, carries
High reacting gas and the reaction efficiency of coke；
Body of heater is tipped upside down on electronic balance, facilitate feeding and the blowing of coke, by crane by the body of heater of back-off
Lift, it is to avoid body of heater impact on reactor when lifting, ensure that the accuracy of data.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the hot quality detecting device of coke high-temperature of the present invention；
Fig. 2 is sieve plate in reactor, the structural representation of the first thermocouple；
Fig. 3 is the control schematic diagram of the hot quality detecting device of coke high-temperature.
Wherein: 1, base footing；2, bedframe；3, base panel；4, electronic balance；5, fixing supporting plate；6, corundum props up
Pipe；7, the first thermocouple；8, arm base；9, tube boot is propped up；10, stove substrate segments；11, honeycomb ceramics；12, furnace lining stage casing；13, earthenware
Crucible base；14, the second thermocouple；15, galvanic couple sheath；16, corundum crucible；17, crucible cover；18, furnace lining epimere；19, furnace shell；
20, steam vent；21, elevating bracket；22, crane；23, column；24, flange；25, Si-Mo rod；26,1# pipeline；27,2# pipeline；
28, blending tank；29, control system；30, sieve plate, 33, body of heater.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, not
For limiting the present invention.
Seeing Fig. 1-Fig. 3, a kind of hot quality detecting device of coke high-temperature, including electronic balance 4 with tip upside down on electronic balance 4
On body of heater 33；Being provided with Si-Mo rod 25 and reactor in body of heater 33, arranging of Si-Mo rod 25 can make body of heater be heated to 1600 DEG C；Silicon
Molybdenum bar circumference is uniformly arranged on the outside of reactor, to guarantee that reactor is heated evenly；Body of heater 33 is provided with steam vent 20, should
The axis of steam vent 20 overlaps with the axis of reactor；
Body of heater 33 include furnace shell 19 and be positioned at furnace shell 19 made thermal insulator by glass fibre cotton, thermal insulator from from lower toward
On the stove substrate segments 10 that sets gradually, furnace lining stage casing 12, furnace lining epimere 18 constitute, the setting of thermal insulator can ensure that the work of body of heater
Temperature is all the time at 1600 DEG C；
Reactor includes corundum crucible 16；The upper end of corundum crucible 16 is provided with crucible cover 17, and the lower end of corundum crucible 16 sets
There is stool 13；In corundum crucible 16, it is sequentially provided with sieve plate 30, the high aluminium ball of a diameter of 10cm, coke from the bottom up；Just
The lower end of beautiful crucible 16 is provided with corundum arm 6 (air inlet pipe), and corundum arm 6 is connected with 1# pipeline 26,2# pipeline 27 respectively, and 1# manages
Road 26 respectively with CO, CO2、N2Source of the gas connects, 2# pipeline 27 and N2Source of the gas connects；It is provided with blending tank 28 at 1# pipeline 26；CO、
CO2、N2Source of the gas controls its flow by effusion meter；
The first thermocouple 7 it is vertically provided with, for measuring the temperature in reactor at the center of corundum crucible 16；At body of heater
The sidewall of 33 is provided with the second thermocouple 14, for measuring the temperature in body of heater 33；First thermocouple the 7, second thermocouple 14 hangs down
Straight setting；Second thermocouple 14 is provided with galvanic couple sheath 15；The temperature gathered is passed by first thermocouple the 7, second thermocouple 17
Pass control system 29；Control system 29 controls heating schedule；
Feeding and blowing for convenience, body of heater 33 is lifted by elevating mechanism, and this structure can reduce reactor and rock
The impact that balance is weighed；Elevating mechanism includes base；Base includes base panel 3, base panel 3 by bedframe 2 with
Base footing 1 connects；Base panel 3 is provided with column 23, and column 23 is fixed on base panel 3, on column 23 by flange 24
Being provided with crane 22, crane 22 is connected with the elevating bracket 21 on body of heater 33, and crane 22 is connected with screw lifting device, spiral
Lifting device drives crane 22 to move, and crane 22 drives body of heater 33 to move up and down.
In order to ensure weighing precision, reducing weighing error, employing range is 10kg, and weighing precision is the electronic balance of 0.1g
4；Fixing supporting plate 5 is set between electronic balance 4 and body of heater 33, to reduce the impact that electronic balance 4 is weighed by variations in temperature, with
The service life of Shi Tigao electronic balance 4；Reactor is made to be vertically arranged with electronic balance 4, it is ensured that in electronic balance, reactor
Dead in line.
In order to fix the first thermocouple 7, it is provided with in corundum arm 6 and the honeycomb ceramics 11 of refractory material support.In order to solid
Determine corundum arm 6, be outside equipped with a tube boot 9 at corundum arm 6, be externally provided with arm base 8 at a tube boot 9.
In course of reaction, control system real-time reception the first thermocouple, the temperature data of the second thermocouple, control to heat up；
Control system monitors the weight of electronic balance in real time, draws the weight-loss ratio curve of coke, weight loss rate curve, calculates coke
Initial reaction temperature, vigorous reaction temperature, real-time weight-loss ratio, weight loss rate；After experiment terminates, it is cooled to room temperature, takes out coke
Carry out rotating drum experiments, calculate intensity after rotary drum.
In the present invention, coke (room temperature～1600 DEG C) under hot weighs and (room temperature) weighing result basic under cold conditions
Cause, it is possible to the real-time deterioration process of coke under monitoring high temperature；The initial reaction temperature of coke, vigorous reaction temperature can be measured,
Using as characterizing blast furnace indirect reduction district and the coke quality index of direct-reduction district change；Can measure under different weight-loss ratio
Thermal property of coke, to characterize the coke quality index under different rate of driving；Can be with gas change in analog blast furnace, furnace temperature change
The impact of STRENGTH ON COKE thermal property.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (9)
1. the hot quality detecting device of coke high-temperature, it is characterised in that: include electronic balance and tip upside down on electronic balance
Body of heater；Heater and reactor it is provided with in described body of heater；
Described reactor includes crucible；Sieve plate, high aluminium ball, coke it is sequentially provided with from the bottom up in described crucible；The lower end of crucible
Being provided with air inlet pipe, air inlet pipe is connected with 1# pipeline, 2# pipeline respectively, 1# pipeline respectively with CO, CO2、N2Source of the gas connects, described N2
Source of the gas is connected with 2# pipeline；
It is vertically provided with the first thermocouple at the center of reactor, the sidewall of body of heater is provided with the second thermocouple；First heat
Galvanic couple, the second thermocouple by gather temperature transfer to control system；Control system monitors the weighing data of electronic balance in real time；
Described body of heater is lifted by elevating mechanism.
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described body of heater include furnace shell and
It is positioned at the thermal insulator of furnace shell.
The hot quality detecting device of coke high-temperature the most according to claim 2, it is characterised in that: described thermal insulator is by glass fibers
Vinylon and cotton blend is made.
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described heater is silicon molybdenum
Rod, this Si-Mo rod is circumferentially provided on the outside of reactor.
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described reactor and electronics sky
Put down and be vertically arranged.
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described elevating mechanism includes the end
Seat, base is provided with column, and column is provided with crane, and crane is suitable with the elevating bracket on body of heater, crane and spiral
Lifting device connects, and screw lifting device drives crane to move, and crane drives body of heater to move up and down.
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described high aluminium ball a diameter of
10cm。
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described 1# pipeline is provided with mixed
Close tank.
The hot quality detecting device of coke high-temperature the most according to claim 1, it is characterised in that: described CO, CO2、N2Source of the gas
Outfan is provided with effusion meter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610364009.XA CN106053285A (en) | 2016-05-27 | 2016-05-27 | Apparatus for detecting high-temperature thermal properties of coke |
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| CN201610364009.XA CN106053285A (en) | 2016-05-27 | 2016-05-27 | Apparatus for detecting high-temperature thermal properties of coke |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593700A (en) * | 2018-05-11 | 2018-09-28 | 武汉钢铁有限公司 | It is a kind of simulation coke blast furnace melting with soft deterioration process test method and simulator |
| CN110314634A (en) * | 2019-06-28 | 2019-10-11 | 陕西延长石油（集团）有限责任公司 | A kind of system applied to tubular reactor reactiveness real time monitoring |
| CN112229942A (en) * | 2020-09-27 | 2021-01-15 | 北京今日中科智能科技有限公司 | Coke reactivity tester |
| CN115015518A (en) * | 2022-06-18 | 2022-09-06 | 首钢集团有限公司 | Coke reaction back strength performance detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108593700A (en) * | 2018-05-11 | 2018-09-28 | 武汉钢铁有限公司 | It is a kind of simulation coke blast furnace melting with soft deterioration process test method and simulator |
| CN108593700B (en) * | 2018-05-11 | 2020-12-11 | 武汉钢铁有限公司 | Test method and simulation device for simulating degradation process of coke in blast furnace reflow zone |
| CN110314634A (en) * | 2019-06-28 | 2019-10-11 | 陕西延长石油（集团）有限责任公司 | A kind of system applied to tubular reactor reactiveness real time monitoring |
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| CN112229942A (en) * | 2020-09-27 | 2021-01-15 | 北京今日中科智能科技有限公司 | Coke reactivity tester |
| CN115015518A (en) * | 2022-06-18 | 2022-09-06 | 首钢集团有限公司 | Coke reaction back strength performance detection device |
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Effective date of registration: 20170707 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Applicant after: Wuhan iron and Steel Company Limited Address before: 430083 Wuhan factory in Hubei Province before the door No. 2 Applicant before: WUHAN IRON AND STEEL CORPORATION |
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