CN106702146A - Energy-saving environment-protecting method for steel and iron plant sintering - Google Patents
Energy-saving environment-protecting method for steel and iron plant sintering Download PDFInfo
- Publication number
- CN106702146A CN106702146A CN201510766875.7A CN201510766875A CN106702146A CN 106702146 A CN106702146 A CN 106702146A CN 201510766875 A CN201510766875 A CN 201510766875A CN 106702146 A CN106702146 A CN 106702146A
- Authority
- CN
- China
- Prior art keywords
- sintering
- energy
- solid fuel
- waste heat
- environment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses an energy-saving environment-protecting method for steel and iron plant sintering. The energy-saving environment-protecting method for steel and iron plant sintering comprises the following steps that (1) solid fuel consumption is reduced by adopting thick bed sintering; (2) solid fuel consumption is reduced through recycling production and the burning effect and performance of solid fuels improvement; (3) the burning effect and performance of solid fuels are improved; (4) the temperature of a sintering material can be improved through hot returning ores and quick lime and hot gas sintering and by injecting steam through a drum mixer before the fuels are mixed, and thus waste heat can be utilized; (5) energy consumption of ignition is reduced by applying an energy-saving type igniter and by means of the method of preheating combustion air; (6) electricity consumption is reduced by reducing air leakage and by adopting a frequency conversion technology; and (7) waste heat is recycled by applying a waste heat boiler and by adopting a waste heat boiler and a waste gas sintering technology. Energy saving and environment protection of the sintering process is actually achieved through the energy-saving environment-protecting method for steel and iron plant sintering provided by the invention.
Description
Technical field
The present invention relates to a kind of energy-conserving and environment-protective method of steel works sintering, belong to environmental protection and energy saving technical field.
Background technology
The sintering of steel plant is the important step that raw material are processed into steel, it will add certain flux, fuel by sintering machine the need for various ores foundation blast furnace, burnt by igniter fuel, under draft effect, there is provided under heat in fuel, various ores are bonded by liquid phase to form the sintering deposit with certain particle size, is used for blast furnace.In general, the sintering process flow of steel plant mainly includes the links such as the premix treatment of raw material before sintering, dispensing, mixing and water adding, cloth, igniting, sintering, cooling, whole grain.Major part steel plant of China are all the main furnace charges using sintering deposit as blast furnace, and sintering energy consumption is the pith of steel and iron industry power consumption, mainly including solid fuel, igniter fuel, power consumption etc..Existing sintering method is fairly simple, implementation is relatively easy to, but there is inevitable shortcoming, the energy consumption of sintering is excessive, negative effect to environment is also larger, the requirement of contemporary energy-conserving and environment-protective is much run counter in the epoch of present this energy shortage traditional sintering processing demonstration class, and the consumption of the energy and material influences also very big for enterprise；Therefore it is badly in need of a kind of new sintering processing of invention, sintering link is truly realized energy-conserving and environment-protective.
The content of the invention
（One）The technical problem to be solved
To solve the above problems, the present invention proposes a kind of energy-conserving and environment-protective method of steel works sintering；Breakthrough is made from the links of sintering, the consumption of the energy is reduced to minimum level by each link.
（Two）Technical scheme
The energy-conserving and environment-protective method of steel works sintering of the invention；Comprise the following steps
The first step, takes deep-bed sintering reduction solid fuel consumption；
Second step, recycles production and takes combustion efficiency and performance the reduction solid fuel consumption for improving solid fuel；
3rd step, takes the combustion efficiency and performance for improving solid fuel；
4th step, the temperature of sintering feed can be improved to utilize waste heat before fuel combination using hot returning ore, quick lime and by the logical people's steam of trommel mixer, hot gas sintering；
The mode of the 5th step, applicating energy-saving type ignition furnace and warm-up combustion-supporting air and reduction igniting power consumption；
6th step, reduction leak out and use converter technique reduce power consumption；
7th step, waste heat is recycled using waste heat boiler and using waste heat waste gas sintering technology.
Further, described deep-bed sintering technology need to progressively increase the thickness of sintering machine ramming material layer.
Further, the combustion efficiency and performance of described improvement solid fuel are used in sintering link using modes such as blending ore, pellet sinterings, instead of a part of solid fuel, reclaim iron, carbon source materials.
Further, the combustion efficiency and performance of described improvement solid fuel, it is combustion-supporting using catalyst so that solid fuel fully burns.
Further, the ignition furnace in described reduction igniting energy consuming methods employs linear, many seams, face combustion burner.
（Three）Beneficial effect
Compared with prior art, the energy-conserving and environment-protective method of steel works sintering of the invention is innovated in terms of reducing solid fuel consumption, reducing igniting power consumption, reduction power consumption, recycling of waste heat etc., the consumption of links a very low state has been reduced to, it is compared with the prior art, sintering method of the invention fundamentally reduces consumption, is truly realized the energy-conserving and environment-protective of sintering process.
Specific embodiment
Comprise the following steps
The first step, takes deep-bed sintering reduction solid fuel consumption；
Second step, recycles production and takes combustion efficiency and performance the reduction solid fuel consumption for improving solid fuel；
3rd step, takes the combustion efficiency and performance for improving solid fuel；
4th step, the temperature of sintering feed can be improved to utilize waste heat before fuel combination using hot returning ore, quick lime and by the logical people's steam of trommel mixer, hot gas sintering；
The mode of the 5th step, applicating energy-saving type ignition furnace and warm-up combustion-supporting air and reduction igniting power consumption；
6th step, reduction leak out and use converter technique reduce power consumption；
7th step, waste heat is recycled using waste heat boiler and using waste heat waste gas sintering technology.
Wherein, described deep-bed sintering technology need to progressively increase the thickness of sintering machine ramming material layer.The combustion efficiency and performance of described improvement solid fuel are used in sintering link using modes such as blending ore, pellet sinterings, instead of a part of solid fuel, reclaim iron, carbon source materials；The combustion efficiency and performance of described improvement solid fuel, it is combustion-supporting using catalyst so that solid fuel fully burns.Ignition furnace in described reduction igniting energy consuming methods employs linear, many seams, face combustion burner.The frequency of described converter technique has auto-conversion function, can according to needed for production needs Reasonable adjustment equipment frequency, reduce machinery equipment idle running.
Embodiment described above is only that the preferred embodiment of the present invention is described, and not the spirit and scope of the present invention are defined.On the premise of design concept of the present invention is not departed from; the all variations and modifications that this area ordinary person makes to technical scheme; protection scope of the present invention all should be dropped into, claimed technology contents of the invention have all been recorded in detail in the claims.
Claims (5)
1. a kind of energy-conserving and environment-protective method of steel works sintering, it is characterised in that comprise the following steps：
The first step, takes deep-bed sintering reduction solid fuel consumption；
Second step, recycles production and takes combustion efficiency and performance the reduction solid fuel consumption for improving solid fuel；
3rd step, takes the combustion efficiency and performance for improving solid fuel；
4th step, the temperature of sintering feed can be improved to utilize waste heat before fuel combination using hot returning ore, quick lime and by the logical people's steam of trommel mixer, hot gas sintering；
The mode of the 5th step, applicating energy-saving type ignition furnace and warm-up combustion-supporting air and reduction igniting power consumption；
6th step, reduction leak out and use converter technique reduce power consumption；
7th step, waste heat is recycled using waste heat boiler and using waste heat waste gas sintering technology.
2. the energy-conserving and environment-protective method of steel works sintering according to claim 1, it is characterised in that：Described deep-bed sintering progressively increases the thickness of sintering machine ramming material layer.
3. the energy-conserving and environment-protective method of steel works sintering according to claim 1, it is characterised in that：The combustion efficiency and performance of described improvement solid fuel are used in sintering link using modes such as blending ore, pellet sinterings, instead of a part of solid fuel, reclaim iron, carbon source materials.
4. the energy-conserving and environment-protective method of steel works sintering according to claim 1, it is characterised in that：The combustion efficiency and performance of described improvement solid fuel, it is combustion-supporting using catalyst so that solid fuel fully burns.
5. the energy-conserving and environment-protective method of steel works sintering according to claim 1, it is characterised in that：Ignition furnace in described reduction igniting energy consuming methods employs linear, many seams, face combustion burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766875.7A CN106702146A (en) | 2015-11-12 | 2015-11-12 | Energy-saving environment-protecting method for steel and iron plant sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510766875.7A CN106702146A (en) | 2015-11-12 | 2015-11-12 | Energy-saving environment-protecting method for steel and iron plant sintering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106702146A true CN106702146A (en) | 2017-05-24 |
Family
ID=58918849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510766875.7A Pending CN106702146A (en) | 2015-11-12 | 2015-11-12 | Energy-saving environment-protecting method for steel and iron plant sintering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106702146A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112725615A (en) * | 2020-12-22 | 2021-04-30 | 中冶长天国际工程有限责任公司 | Soaking sintering method based on layered composite heat supply |
-
2015
- 2015-11-12 CN CN201510766875.7A patent/CN106702146A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112725615A (en) * | 2020-12-22 | 2021-04-30 | 中冶长天国际工程有限责任公司 | Soaking sintering method based on layered composite heat supply |
| WO2022134322A1 (en) * | 2020-12-22 | 2022-06-30 | 中冶长天国际工程有限责任公司 | Layered compound heat supply-based heat-balanced sintering method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103755171B (en) | A kind of nsp kiln works in coordination with activating coal gangue technique | |
| CN100510120C (en) | Method for producing metallized iron-smelting raw material | |
| CN106521144A (en) | Method and system for reducing content of CO and nitric oxide in sintering waste gas | |
| CN112229205A (en) | Active lime calcining system | |
| CN104745757B (en) | A kind of microwave fuel combined heat formula coal-based direct reduction method and rotary hearth furnace | |
| CN203615314U (en) | New energy-saving system of semi-hermetic submerged arc furnace | |
| CN106702146A (en) | Energy-saving environment-protecting method for steel and iron plant sintering | |
| CN104891831A (en) | Energy-saving environment-friendly active lime roasting shaft kiln | |
| CN102788501A (en) | Energy-saving environment-friendly type high-temperature fluidized bed calcinator | |
| CN202792954U (en) | Energy-saving and environment-friendly high temperature fluidized bed roasting oven | |
| CN105112606A (en) | Steelmaking system | |
| CN205784634U (en) | A kind of waste heat recycling system of ceramic production line | |
| CN204848755U (en) | Belt pyrolysis oven | |
| CN209386780U (en) | A kind of rotary kiln burner | |
| CN107162443A (en) | A kind of new boiling limekiln | |
| CN210215414U (en) | Blast furnace coal powder injection and hot blast stove air/coal gas series preheating system | |
| CN203807414U (en) | Household garbage pyrolyzing and gasifying furnace | |
| CN202450141U (en) | Non-ferrous metal recovery reacting device | |
| Yongwei et al. | Analysis of the energy efficiency in the large enterprises from an industrial ecology perspective: Case study from BaoGang group | |
| CN205980715U (en) | Device is burned with waste gas to heating of natural gas direct combustion in synthetic leather processing | |
| CN102364280A (en) | Secondary combustion reduction heating furnace for layered furnace gas | |
| CN105177292B (en) | A kind of method of utilization high-temperature oxydation pelletizing sensible heat direct-reduction production metallized pellet | |
| CN204714712U (en) | Energy-saving environment protection active lime roasting shaft kiln | |
| CN204285450U (en) | Air single-preheating integral type sintering ignition furnace | |
| CN203878183U (en) | Heat self-accumulating type double-side heating reduction equipment for refractory iron ores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |
|
| WD01 | Invention patent application deemed withdrawn after publication |