CN202297629U - Simulation combustion device for testing combustion performance of injection coal of blast furnace - Google Patents
Simulation combustion device for testing combustion performance of injection coal of blast furnace Download PDFInfo
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- CN202297629U CN202297629U CN2011203722976U CN201120372297U CN202297629U CN 202297629 U CN202297629 U CN 202297629U CN 2011203722976 U CN2011203722976 U CN 2011203722976U CN 201120372297 U CN201120372297 U CN 201120372297U CN 202297629 U CN202297629 U CN 202297629U
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Abstract
The utility model discloses a simulation combustion device for testing the combustion performance of injection coal of a blast furnace, which is used for solving the problem that the powdered coal combustion performance of injection coal of the blast furnace cannot be detected conveniently by using the conventional testing under various conditions. The top of a coal injection tank (6) is communicated with one end of an upper pressure pipeline (15); the bottom of the coal injection tank (6) is communicated with one end of a lower pressure pipeline (14); the upper and lower pressure pipelines are communicated with the output end of a total pressure pipeline (13); the input end of the total pressure pipeline (13) is communicated with a gas storage tank (7); a compressor (8) is communicated with the gas storage tank (7) of a compressed air input valve (10); the bottom of the coal injection tank (6) is provided with a coal injection pipe (17) and a coal injection gun (3); and the outlet of a preheated air output pipe (16) of an air preheating furnace (4) is formed at the inlet of a combustion furnace (2). A reasonable coal distribution scheme and process parameters are provided for a blast furnace coal injection process.
Description
Technical field
The utility model relates to a kind of simulator of testing coal powder performance, particularly a kind of device that is used for the pulverized coal injection into blast furna combustionproperty is carried out simulation test.
Background technology
The burning behavior of pulverized coal injection into blast furna in blast furnace directly has influence on coal-to-coke replacement, and then influences pig iron cost.Therefore, the combustioncharacteristics of injection coal has fundamental influence to industrial production.The burning of pulverized coal injection in blast furnace is the rapid combustion in the finite space, can improve the rate of combustion of coal dust under the blast furnace blowing condition through ratio, raising wind-warm syndrome and the oxygen enrichment percentage, the granularity of reduction coal dust, the interpolation coal dust promotor that increase the mixed coal powder metabituminous coal.Existing testing apparatus can not detect the coal powder performance of pulverized coal injection in blast furnace under variant conditions such as mixed injection, raising wind-warm syndrome or oxygen enrichment percentage, reduction coal powder size, interpolation promotor quickly and easily.
Summary of the invention
The utility model provides a kind of simulated combustion device that is used for the pulverized coal injection into blast furna combustibility test, has solved the problem that existing testing apparatus can not detect the coal powder performance of pulverized coal injection in blast furnace under variant conditions such as mixed injection, raising wind-warm syndrome or oxygen enrichment percentage, reduction coal powder size, interpolation promotor quickly and easily.
The utility model overcomes the above problems through following scheme:
A kind of simulated combustion device that is used for the pulverized coal injection into blast furna combustibility test; Comprise electric control gear, roasting kiln, preheating of air stove and coal powder injection jar, the top of coal powder injection jar is communicated with an end of upward pressure pipeline, and the other end of upward pressure pipeline is communicated with the output terminal in pressure main(header) road; The bottom of coal powder injection jar is communicated with an end of overdraft pipeline; The other end of overdraft pipeline is communicated with the output terminal in pressure main(header) road, and the input terminus in pressure main(header) road is communicated with gas-holder, and the pressure main(header) road is provided with the pressure air output SV that is electrically connected with electric control gear; Compressor is communicated with gas-holder through the pressurized air transfer valve; The pressurized air transfer valve is electrically connected with electric control gear, is provided with the injection coal pipe in the bottom of coal powder injection jar, and the coal spouting gun that is communicated with the injection coal pipe is arranged on the ingress of roasting kiln; The cold air inlet of preheating of air stove is provided with the cold wind control SV that is electrically connected with electric control gear; The outlet of the preheated air output tube of preheating of air stove is arranged on the ingress of roasting kiln, is provided with ash collection slot in the bottom of roasting kiln, in gas-holder, is provided with the transmitter that is electrically connected with electric control gear.
In roasting kiln, be provided with the globars of heating usefulness, in the preheating of air stove, be provided with and add the tantnickel rod that warm air uses.
Be provided with PC in the electric control gear, in PC, be provided with the computer program that automatic control simulator makes an experiment.
Invent this device and can detect the coal powder performance of pulverized coal injection into blast furna branch under variant conditions such as mixed injection, raising wind-warm syndrome or oxygen enrichment percentage, reduction coal powder size, interpolation promotor quickly and easily, for blast furnace PCI technology provides rational coal blending scheme and processing parameter.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Specific embodiment
A kind of simulated combustion device that is used for the pulverized coal injection into blast furna combustibility test; Comprise electric control gear 12, roasting kiln 2, preheating of air stove 4 and coal powder injection jar 6; The top of coal powder injection jar 6 is communicated with an end of upward pressure pipeline 15; The other end of upward pressure pipeline 15 is communicated with the output terminal in pressure main(header) road 13, and the bottom of coal powder injection jar 6 is communicated with an end of overdraft pipeline 14, and the other end of overdraft pipeline 14 is communicated with the output terminal in pressure main(header) road 13; The input terminus in pressure main(header) road 13 is communicated with gas-holder 7; Pressure main(header) road 13 is provided with the pressure air output SV 9 that is electrically connected with electric control gear 12, and compressor 8 is communicated with gas-holder 7 through pressurized air transfer valve 10, and pressurized air transfer valve 10 is electrically connected with electric control gear 12; Be provided with injection coal pipe 17 in the bottom of coal powder injection jar 6; The coal spouting gun 3 that is communicated with injection coal pipe 17 is arranged on the ingress of roasting kiln 2, and the cold air inlet 5 of preheating of air stove 4 is provided with the cold wind control SV that is electrically connected with electric control gear 12, and the outlet of the preheated air output tube 16 of preheating of air stove 4 is arranged on the ingress of roasting kiln 2; Be provided with ash collection slot 1 in the bottom of roasting kiln 2, in gas-holder 7, be provided with the transmitter 11 that is electrically connected with electric control gear 12.
In roasting kiln 2, be provided with the globars of heating usefulness, in preheating of air stove 4, be provided with and add the tantnickel rod that warm air uses.
Be provided with PC in the electric control gear 12, in PC, be provided with the computer program that automatic control simulator makes an experiment.
The system of the utility model not only can accurately be controlled the intensification of cold wind pre-heating system, makes it accurately be warmed up to 1200 ± 5 ℃ at the appointed time, and keeps in this temperature.And can carry out accurate temperature controlling to the heating system of roasting kiln and make it be rapidly heated 1500 ± 5 ℃, and remain unchanged in this temperature, also can make its temperature rise rate adjustable in 5-20 ℃/min and 5-25 ℃/min scope respectively.Air, pressure transmitter and SV are formed the power system of breeze blowing; When the high pressure vessel internal pressure reaches certain value; Pressure transmitter 11 is transferred to numerical value the system of electric control gear 12; System provides instruction, and compressor 8 quits work and opens SV 9, and it is 0.5 second that SV 9 is opened duration.Article two, pressure pipeline, one of upper end be to the coal-storage pot pressurization, and the lower end makes from the coal-storage pot bottom that coal dust is unsettled can not to stop up coal spraying pipeline.After the coal dust of coal-storage pot ejection meets with the hot blast after the preheating, make its temperature rising, under the hot environment of roasting kiln, burn then, lime-ash falls in the ash collection slot.After finishing, experiment calculates its rate of combustion through analytical results contrast to cindery assay result and former coal sample.Temperature control system is to having better controlled in temperature rise rate and the accuracy; Automatic press and automatic spraying system make whole plant automation degree that large increase arranged; Avoid human factor to produce the variation of pressure change and winding-up power, thereby made circulation ratio and accuracy increase.
This device has adopted advanced automatic and accurate temperature control technique aspect intensification; Doing the fluidisation facility aspect the coal dust conveying; Make the operating ratio of total system near actual production technology like this; So use this device to test fast the rate of combustion of coal dust under the conditions such as different material, different wind-warm syndrome, different oxygen-enriched rate, different combustion improvers easily, the coal dust firing situation when obtaining being similar to the blast furnace actual production.Therefore, the invention of this device has been avoided using blast furnace itself to do the shortcoming that experiment has a big risk, cost is high, the cycle is long.
Claims (3)
1. simulated combustion device that is used for the pulverized coal injection into blast furna combustibility test; Comprise electric control gear (12), roasting kiln (2), preheating of air stove (4) and coal powder injection jar (6); It is characterized in that the top of coal powder injection jar (6) is communicated with an end of upward pressure pipeline (15), the other end of upward pressure pipeline (15) is communicated with the output terminal of pressure main(header) road (13); The bottom of coal powder injection jar (6) is communicated with an end of overdraft pipeline (14); The other end of overdraft pipeline (14) is communicated with the output terminal of pressure main(header) road (13), and the input terminus of pressure main(header) road (13) is communicated with gas-holder (7), and pressure main(header) road (13) are provided with the pressure air output SV (9) that is electrically connected with electric control gear (12); Compressor (8) is communicated with gas-holder (7) through pressurized air transfer valve (10); Pressurized air transfer valve (10) is electrically connected with electric control gear (12), is provided with injection coal pipe (17) in the bottom of coal powder injection jar (6), and the coal spouting gun (3) that is communicated with injection coal pipe (17) is arranged on the ingress of roasting kiln (2); The cold air inlet (5) of preheating of air stove (4) is provided with the cold wind control SV that is electrically connected with electric control gear (12); The outlet of the preheated air output tube (16) of preheating of air stove (4) is arranged on the ingress of roasting kiln (2), is provided with ash collection slot (1) in the bottom of roasting kiln (2), in gas-holder (7), is provided with the transmitter (11) that is electrically connected with electric control gear (12).
2. a kind of simulated combustion device that is used for the pulverized coal injection into blast furna combustibility test according to claim 1 is characterized in that, in roasting kiln (2), is provided with the globars of heating usefulness, in preheating of air stove (4), is provided with to add the tantnickel rod that warm air is used.
3. a kind of simulated combustion device that is used for the pulverized coal injection into blast furna combustibility test according to claim 1 is characterized in that electric control gear is provided with computingmachine in (12), in computingmachine, is provided with the computer program that automatic control simulator makes an experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203722976U CN202297629U (en) | 2011-10-08 | 2011-10-08 | Simulation combustion device for testing combustion performance of injection coal of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203722976U CN202297629U (en) | 2011-10-08 | 2011-10-08 | Simulation combustion device for testing combustion performance of injection coal of blast furnace |
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| Publication Number | Publication Date |
|---|---|
| CN202297629U true CN202297629U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203722976U Expired - Fee Related CN202297629U (en) | 2011-10-08 | 2011-10-08 | Simulation combustion device for testing combustion performance of injection coal of blast furnace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571989A (en) * | 2013-10-31 | 2014-02-12 | 北京科技大学 | Ultra-high temperature pulverized coal combustion experiment device |
| CN104237452A (en) * | 2014-10-15 | 2014-12-24 | 中国科学院山西煤炭化学研究所 | Continuous combustion device for solid powder |
| CN104764852A (en) * | 2015-03-27 | 2015-07-08 | 辽宁科技大学 | Visual detection method of pulverized coal combustion ratio |
| RU2555486C2 (en) * | 2013-07-11 | 2015-07-10 | Андрей Владимирович Палицын | Gas-generator |
| CN108414388A (en) * | 2018-02-02 | 2018-08-17 | 西部矿业股份有限公司 | The assay method and its sensing equipment of gold, silver in a kind of copper ashes |
| CN110646163A (en) * | 2019-09-30 | 2020-01-03 | 东北大学 | Thermal state blast furnace assembly system |
-
2011
- 2011-10-08 CN CN2011203722976U patent/CN202297629U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2555486C2 (en) * | 2013-07-11 | 2015-07-10 | Андрей Владимирович Палицын | Gas-generator |
| CN103571989A (en) * | 2013-10-31 | 2014-02-12 | 北京科技大学 | Ultra-high temperature pulverized coal combustion experiment device |
| CN103571989B (en) * | 2013-10-31 | 2015-01-28 | 北京科技大学 | Ultra-high temperature pulverized coal combustion experiment device |
| CN104237452A (en) * | 2014-10-15 | 2014-12-24 | 中国科学院山西煤炭化学研究所 | Continuous combustion device for solid powder |
| CN104237452B (en) * | 2014-10-15 | 2015-10-28 | 中国科学院山西煤炭化学研究所 | A kind of pressed powder continuous combustion apparatus |
| CN104764852A (en) * | 2015-03-27 | 2015-07-08 | 辽宁科技大学 | Visual detection method of pulverized coal combustion ratio |
| CN108414388A (en) * | 2018-02-02 | 2018-08-17 | 西部矿业股份有限公司 | The assay method and its sensing equipment of gold, silver in a kind of copper ashes |
| CN110646163A (en) * | 2019-09-30 | 2020-01-03 | 东北大学 | Thermal state blast furnace assembly system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |