CN205528868U - Blast furnace gas uses multipurposely facility - Google Patents
Blast furnace gas uses multipurposely facility Download PDFInfo
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- CN205528868U CN205528868U CN201620229718.2U CN201620229718U CN205528868U CN 205528868 U CN205528868 U CN 205528868U CN 201620229718 U CN201620229718 U CN 201620229718U CN 205528868 U CN205528868 U CN 205528868U
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Abstract
The utility model provides a blast furnace gas uses multipurposely facility, including the blast furnace, pass through coal gas generating set, hot -blast furnace and the aided industrial stove that gas piping is connected with the blast furnace, still include a sintering machine and provide the buggy torch firing system of fuel for the sintering machine. This facility in with blast furnace gas comprehensive utilization system of iron and steel enterprise the used fuel of sintering deposit production change the buggy into by blast furnace gas, reduced the gaseous pollutants emission, reduced sintering machine power consumption, improved low heat value blast furnace gas's value greatly, increased the profit of iron and steel enterprise.
Description
Technical field
This utility model relates to blast furnace process production technical field, particularly relates to a kind of blast furnace gas multiplex utilization facilities being applied to iron and steel enterprise.
Background technology
Blast furnace produces a large amount of low-calorie blast furnace gas in smelting process, and the fully recycling to blast furnace gas resource is that iron and steel enterprise increases economic efficiency, it is achieved the key link of target for energy-saving and emission-reduction.At present majority iron and steel enterprise of China be 40% in blast furnace coal gas is used for sintering deposit produce, 40% be used for heat supply wind furnace use, 10 be used for other industrial furnaces such as annealing furnace, more than needed 10 for generating electricity, have become as the pith of blast furnace smelting process for this gas-driven generator group.In actual applications, the gas-fired temperature of sintering deposit production and application is low, large usage quantity, because being affected by blast furnace gas Dryland crops, the operation of gas-driven generator group is difficult to ensure that.During producing sintering deposit furthermore with blast furnace gas; Main Ingredients and Appearance co2L, N2 of blast furnace gas are not involved in chemical reaction substantially, and almost all is transferred to burn in produced waste gas, produces a large amount of harmful gas; disposal of pollutants is significantly larger than burnt raw coal, is unfavorable for environmental conservation.Blast furnace gas combustion needs to use the main induced draft fan of high intensity, and power consumption is big, has increased the weight of sintering cost.According to statistics, using blast furnace gas as sintering fuel, 1 ton of sintering deposit about produces 4000-6000 cubic meter flue gas, an iron and steel enterprise producing 3000000 tons per year, the sintering deposit needing nearly 5,000,000 tons in a year, needs burnup 3 billion cubic meter coal gas.Power Generation by BF Gas compares tradition thermal power plant, and stokehold device is simple, and energy utilization rate is high, if above-mentioned sintering Gas Resource can replace for generating electricity, just can generate electricity 75,000,000 degree of electricity, and generated energy is significantly larger than the generated energy of equal value coal dust, and dusty gas discharge is few.Iron and steel enterprise, if the blast furnace gas of sintering deposit production will be used for then for generating electricity, utilizes low cost and more environmentally-friendly coal dust to be sintered ore deposit and produces, it will be greatly improved the profit margin of iron and steel enterprise.Therefore, it is necessary to existing blast furnace gas multiplex utilization facilities is improved, meet the demand in market and user.
Summary of the invention
This utility model provides a kind of blast furnace gas multiplex utilization facilities, and thoroughly solving existing iron and steel enterprise blast furnace gas can not make full use of, and energy waste is serious, the problem that disposal of pollutants is many, the beneficially realization of China's target for energy-saving and emission-reduction.
nullFor solving above-mentioned technical problem，This utility model adopts the following technical scheme that a kind of blast furnace gas multiplex utilization facilities，Including blast furnace、The gas-driven generator group being connected by gas piping with blast furnace、Air stove and support industry stove，It is characterized in that: also include a sintering machine and the coal dust torch firing system of fuel is provided for sintering machine，It is sintering feed bed bottom described sintering machine，Sintering feed bed it is provided above fireguard groove，Fireguard groove is the cuboid that lower surface is uncovered，Fireguard groove upper surface arranges exhanst gas outlet，Exhanst gas outlet is connected with discharge flue，Described coal dust torch firing system includes coal powder distribation blowing device、The coal burner being connected by coal dust transfer pipeline with coal powder distribation blowing device，Coal burner is evenly distributed on fireguard groove upper surface，Fireguard groove upper end is additionally provided with the combustion air dispenser connected with coal burner，Described sintering feed bed lower section is provided with bottom drawing device.
Further described combustion air dispenser includes the most combustion-supporting airduct, secondary combustion-supporting airduct, combustion air house steward and the combustion fan connected with coal burner, and the most combustion-supporting described airduct and secondary combustion-supporting airduct are equipped with regulation valve.
Further described coal powder distribation blowing device includes coal dust intermediate bin that fuel pulverizing plant connected by conveyer device with fuel pulverizing plant, is positioned at the pulverized coal injection blow head bottom coal dust intermediate bin, pulverized coal injection blow head rear is provided with breeze blowing blower fan, and pulverized coal injection blow head is connected with coal burner by coal dust transfer pipeline.
Compared with prior art, sintering deposit in iron and steel enterprise's blast furnace gas utilization system is produced and fuel used is changed into coal dust by blast furnace gas by this utility model, decrease dusty gas discharge capacity, decrease sintering machine power consumption, substantially increase the value of low combustion value furnace gas, add the profit of iron and steel enterprise.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of blast furnace gas multiplex utilization facilities described in the utility model.
Fig. 2 is sintering machine described in the utility model, coal dust torch firing system and combustion air dispenser connection figure.
Component names corresponding in figure is: 1 blast furnace, 2 gas-driven generator groups, 3 air stovees, 4 support industry stoves, 5 sintering machines, 6 coal dust torch firing systems, 7 combustion air dispensers, 51 is sintering feed bed, 52 fireguard grooves, 53 discharge flues, 61 coal burners, 62 bottom drawing devices, 63 coal powder distribation blowing devices, 71 the most combustion-supporting airducts, 72 secondary combustion-supporting airducts, 73 combustion air house stewards, 74 combustion fans, 75 regulation valves, 631 fuel pulverizing plants, 632 coal dust intermediate bins, 633 pulverized coal injection blow heads, 634 breeze blowing blower fans.
Detailed description of the invention
nullRefer to Fig. 1、Shown in Fig. 2，This utility model provides a kind of blast furnace gas multiplex utilization facilities，A kind of blast furnace gas multiplex utilization facilities，Including blast furnace 1、The gas-driven generator group 2 being connected by gas piping with blast furnace、Air stove 3 and support industry stove 4，Also include a sintering machine 5 and the coal dust torch firing system 6 of fuel is provided for sintering machine，It is sintering feed bed 51 bottom described sintering machine，Sintering feed bed it is provided above fireguard groove 52，Fireguard groove is the cuboid that lower surface is uncovered，Fireguard groove upper surface arranges exhanst gas outlet，Exhanst gas outlet is connected with discharge flue 53，Described coal dust torch firing system includes coal powder distribation blowing device 63、The coal burner 61 being connected by coal dust transfer pipeline with coal powder distribation blowing device，Coal burner is evenly distributed on fireguard groove 52 upper surface，Fireguard groove upper end is additionally provided with the combustion air dispenser 7 connected with coal burner，Described sintering feed bed lower section is provided with bottom drawing device 62.Described combustion air dispenser includes the most combustion-supporting airduct 71, secondary combustion-supporting airduct 72, combustion air house steward 73 and the combustion fan 74 connected with coal burner, and the most combustion-supporting described airduct and secondary combustion-supporting airduct are equipped with regulation valve 75.Described coal powder distribation blowing device includes coal dust intermediate bin 632 that fuel pulverizing plant 631 connected by conveyer device with fuel pulverizing plant, is positioned at the pulverized coal injection blow head 633 bottom coal dust intermediate bin, pulverized coal injection blow head rear is provided with breeze blowing blower fan 634, and pulverized coal injection blow head 633 is connected with coal burner 61 by coal dust transfer pipeline.
In the specific implementation, sintering machine generates electricity for gas-driven generator group not in use by blast furnace gas fuel, 50% in the blast furnace gas that blast furnace produces, and 40% is used for blast furnace process air stove, and 10% is used for support industry stove；Pulverized Coal used instead by sintering machine, utilizes coal dust torch firing system to provide fuel to be sintered ore deposit for sintering machine and produces, and gas-driven generator group is generated electricity and can be used for sintering machine and blast furnace process electricity consumption or grid-connected output.Ground coal dust is transported to coal dust intermediate bin 632 through conveyance conduit by fuel pulverizing plant 631, recycling pulverized coal injection blow head 633 and breeze blowing blower fan 634 are by breeze blowing to each coal burner 61, and coal burner 61 is by the fireguard groove above the breeze blowing lighted to sintering feed bed 51.According to low-temp low-pressure, medium temperature and medium pressure, the technique adjustment coal burner 61 of High Temperature High Pressure three road sintering and combustion air dispenser 7, one low-temperature and low-pressure sintering arranges torch firing temperature 1250---1300 degree, sprays 6kpa, make sintering charge level form preliminary sinter layer；Two road medium temperature and medium pressure sintering, arrange torch firing temperature 1300---1380 degree, spray 8kpa, make sintering charge level form sintering charge level waste heat layer；Three road High Temperature High Pressure sintering, arrange torch firing temperature 1380---1500 degree, spray 9kpa, reach finally to sinter the purpose of charge level, make sintering charge level form drying layer, after sintering feed surface is burned, taking out high temperature under wind action under bottom drawing device is continuous constantly to move down, ramming material burns till as sintering deposit；The flue gas that sintering produces is discharged outside sintering machine by exhanst gas outlet.
The above; it it is only most preferred embodiment of the present utility model; not this utility model is made any pro forma restriction; any those of ordinary skill in the art; without departing under technical solutions of the utility model ambit; technical solutions of the utility model are made many possible variations and modification by the method content utilizing the disclosure above, belong to the scope of claims protection.
Claims (3)
- null1. a blast furnace gas multiplex utilization facilities，Including blast furnace、The gas-driven generator group being connected by gas piping with blast furnace、Air stove and support industry stove，It is characterized in that: also include a sintering machine and the coal dust torch firing system of fuel is provided for sintering machine，It is sintering feed bed bottom described sintering machine，Sintering feed bed it is provided above fireguard groove，Fireguard groove is the cuboid that lower surface is uncovered，Fireguard groove upper surface arranges exhanst gas outlet，Exhanst gas outlet is connected with discharge flue，Described coal dust torch firing system includes coal powder distribation blowing device、The coal burner being connected by coal dust transfer pipeline with coal powder distribation blowing device，Coal burner is evenly distributed on fireguard groove upper surface，Fireguard groove upper end is additionally provided with the combustion air dispenser connected with coal burner，Described sintering feed bed lower section is provided with bottom drawing device.
- A kind of blast furnace gas multiplex utilization facilities the most according to claim 1, it is characterized in that: described combustion air dispenser includes the most combustion-supporting airduct, secondary combustion-supporting airduct, combustion air house steward and the combustion fan connected with coal burner, the most combustion-supporting described airduct and secondary combustion-supporting airduct are equipped with regulation valve.
- A kind of blast furnace gas multiplex utilization facilities the most according to claim 1, it is characterized in that: described coal powder distribation blowing device includes coal dust intermediate bin that fuel pulverizing plant connected by conveyer device with fuel pulverizing plant, is positioned at the pulverized coal injection blow head bottom coal dust intermediate bin, pulverized coal injection blow head rear is provided with breeze blowing blower fan, and pulverized coal injection blow head is connected with coal burner by coal dust transfer pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229718.2U CN205528868U (en) | 2016-03-24 | 2016-03-24 | Blast furnace gas uses multipurposely facility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620229718.2U CN205528868U (en) | 2016-03-24 | 2016-03-24 | Blast furnace gas uses multipurposely facility |
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| CN205528868U true CN205528868U (en) | 2016-08-31 |
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| CN201620229718.2U Expired - Fee Related CN205528868U (en) | 2016-03-24 | 2016-03-24 | Blast furnace gas uses multipurposely facility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112831652A (en) * | 2020-12-30 | 2021-05-25 | 安徽工业大学 | Carbon-free sintering system adopting high air temperature to provide heat |
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2016
- 2016-03-24 CN CN201620229718.2U patent/CN205528868U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112831652A (en) * | 2020-12-30 | 2021-05-25 | 安徽工业大学 | Carbon-free sintering system adopting high air temperature to provide heat |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20180324 |