CN203586846U - Feeding device for vertical cooling and waste heat recovering furnace for sintering ore - Google Patents
Feeding device for vertical cooling and waste heat recovering furnace for sintering ore Download PDFInfo
- Publication number
- CN203586846U CN203586846U CN201320814396.4U CN201320814396U CN203586846U CN 203586846 U CN203586846 U CN 203586846U CN 201320814396 U CN201320814396 U CN 201320814396U CN 203586846 U CN203586846 U CN 203586846U
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- Prior art keywords
- feeding device
- cooling
- waste heat
- sintering ore
- sintering
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- 238000005245 sintering Methods 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 title claims abstract description 46
- 239000002918 waste heat Substances 0.000 title claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 20
- 238000011068 loading method Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 125000005587 carbonate group Chemical group 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a feeding device for a vertical cooling and waste heat recovering furnace for a sintering ore. The feeding device comprises a feeding hopper arranged at the top of a cooling chamber, wherein a crusher is arranged above the feeding hopper, a discharge opening of the crusher is communicated with a feeding opening of the feeding hopper, and the crusher is internally provided with a crushing device. As the feeding device is equipped with the crusher, hot sintered ore directly enters the feeding hopper of the recovery furnace from a discharge channel of the crusher (no material drawing equipment like a chain plate machine is needed), so that the advantages of high production reliability and small heat loss are achieved, more prominently, the feeding device has the advantages as follows: 1, the particle size of the crushed sintering ore is smaller so as to facilitate sufficient cooling of the sintering ore and increasing of the recovery rate of the waste heat; 2, the descending speed of the sintering ore is slowed down, so as to facilitate the continuous combustion of matters not sufficiently burned in the sintering ore, decomposition of the carbonate, and the improvement of the quality, the size composition and the strength of the sintering ore.
Description
Technical field
The utility model relates to the cooling field of sintering deposit, is specifically related to the feeding device of vertical cooling and waste heat recovery stove for sintering deposit.
Background technology
Sintering ore cooling waste gas sensible heat accounts for 19%～35% of sintering circuit total energy consumption according to statistics, domestic sintering ore cooling waste gas heat recovery mainly contains three kinds of modes: the one, directly using useless flue gas after purification as the combustion air of ignition furnace of sintering machine or for pre-heat mixture, to reduce fuel consumption. this mode is comparatively simple, but UTILIZATION OF VESIDUAL HEAT IN amount is limited, be generally no more than 10% of exhaust gas volumn; The 2nd, useless flue gas is produced to steam by heat-pipe apparatus or waste heat boiler, be incorporated to steam pipe system, Substitute For Partial coal-burning boiler; The 3rd, waste heat boiler is produced to steam and for driving steam turbine group, generate electricity.The UTILIZATION OF VESIDUAL HEAT IN of current domestic sintering deposit more and more comes into one's own, and mainstream technology is for producing steam or generating by utilizing the sensible heat of central cooler high temperature section flue gas to reclaim.How which kind of method no matter, first will solve in cooling sintering deposit high efficiente callback waste heat.The main organic cooling and outer cooling two large classes of machine of sintering deposit process for cooling.The cooling continuous pallettype sintering machine that is mainly used at present on machine, has the advantages that once investment relatively economizes, but because the version of continuous pallettype sintering machine has determined cooling lower with waste heat recovery efficiency; Machine is outer coolingly mainly contains that belt is cooling, ring type is cooling etc.
Machine is cooling outward to be compared and has compared with other method:
1. the about 1.4m of thickness of feed layer, resistance is little, and the blast of cooling blower is low, is conducive to save power consumption.
2. thermal sintering cake is after broken, screening, epigranular, and particle diameter is less, is conducive to the cooling of sintering deposit.
3. adopt air blast cooling, be conducive to heat recovery, do not need to adopt expensive high-temperature blower.
4. cooling working medium is normal temperature air, and the fan rotor life-span is long, is convenient to maintenance, and operating cost is low.
5. air blast cooling have heat exchange fully, cooling effect meets adhesive tape transporting equipment condition, easy to maintenance, waste gas residual heat recoverable.
In view of above-mentioned advantage, sintering main flow cooling means adopts ring type cooling.
But the fault of construction of central cooler has determined bootstrap system and has had more problem, mainly contained:
1. heat exchange is insufficient, in central cooler heat sinter on chassis with cooling-air regeneration, heat transfer effect is poor; Sintering deposit bed of material piling height is generally 1.0m～1.8m, is so limited, and heat sinter and cooling-air regeneration time are short, and heat exchange is insufficient.If increase thickness of feed layer, not only can increase cooling power consumption, and can cause the sintering deposit cannot be fully cooling.
2. sealing effectiveness is poor, and air leak rate of air curtain is high, in sintering deposit cooling procedure, mainly leaks out a little: between chassis and bellows; Between chassis and petticoat pipe; Between petticoat pipe afterbody open section and seal section and middle baffle plate; Ore deposit end petticoat pipe falls; End bellows termination, ore deposit falls; Between chassis and wheel.The quality of sealing effectiveness directly has influence on the efficiency of waste heat recovery, due to the defect of central cooler version, inevitably in use produces and leaks out, average air leak rate of air curtain reaches more than 30%, not only affect waste heat recovery rate, and cause flour dust overflow, environmental pollution is serious.
3. UTILIZATION OF VESIDUAL HEAT IN efficiency is low, in existing sintering machine afterheat generating system, generally by extract front 2 sections of hot flue gases that temperature is higher from central cooler, carry out UTILIZATION OF VESIDUAL HEAT IN, approximately 400 ℃ of first paragraph cigarette temperature, approximately 300 ℃ of second segment cigarette temperature, the lower temperature hot waste gas overwhelming majority of other sections is arranged outward, and heat sinter temperature after sintering is up to 750 ℃, sintering deposit and cooling-air exchange hot junction are poor large, and acting capacity loss is larger, and UTILIZATION OF VESIDUAL HEAT IN efficiency is low.
4. power consumption is high, encircle that between cold cooling-air and sintering deposit, heat-exchange time is short, heat transfer effect is poor, obturation effect is poor, and the air leak rate of air curtain of cooling air is approximately more than 30%, the blow rate required that increases central cooler makes the required cooling air quantity of coolant flat weight sintering deposit large, has increased the cooling power consumption of sintering deposit.
5. cold and hot difference variation is large the circular cooler trolley cycle of operation, cause chassis thermal deformation and running gear rapid wear and the frequent repairing that stops production, cause and after central cooler, configure the frequent stoppage in transit of afterheat generating system and start, reduced generated energy and the life-span that affects generating equipment.
The defective effect waste heat recovery rate of central cooler version, current domestic central cooler cogeneration index is best is about 20 degree electricity/t sintering deposits (net electric generation); Even if use new and effective central cooler, reach at most 25 degree electricity/t sintering deposits (net electric generation).
In view of the above-mentioned shortcoming of central cooler, improve the road that the cooling and waste heat recovery mode of sintering deposit has become the certainty of sintering industry technological progress.
Summary of the invention
The technical problems to be solved in the utility model is to provide the feeding device of vertical cooling and waste heat recovery stove for sintering deposit, not only can delay the falling speed of sintering deposit, not clean-burning fuel in sintering deposit is burnt away, improve the quality of sintering deposit, be conducive to the cooling of sintering deposit, improve the rate of recovery of waste heat.
Technical solution adopted in the utility model is:
The feeding device of vertical cooling and waste heat recovery stove for sintering deposit, comprise the loading hopper that is arranged at cooling chamber top, the top of described loading hopper is provided with disintegrating machine, and the discharging opening of described disintegrating machine is communicated with chute with the charging aperture of loading hopper, in described disintegrating machine, is provided with crushed aggregates device.
The further improvement project of the utility model is, described crushed aggregates device is particle roller, and described particle roller is one or two, and its two ends are movably connected on disintegrating machine, and are furnished with driving power.
The utility model further improvement project is, the roll body surface of described particle roller is provided with blade, the described blade roll body surface that is distributed in particle roller straggly, or described blade extends to the other end of particle roller in the shape of a spiral from one end of particle roller.
The beneficial effects of the utility model are:
The utility model is owing to being equipped with disintegrating machine for feeding device, heat sinter directly enters the loading hopper (not needing to adopt the material drag equipment such as chain mat machine) of recovery furnace from the discharging channel of disintegrating machine, not only there is production reliability high, the advantage that heat loss is little, and more outstanding:
1, the granularity of the sintering deposit after particle is less, is conducive to the fully cooling of sintering deposit, improves the rate of recovery of waste heat;
2, delay the falling speed of sintering deposit, be conducive to not clean-burning material in sintering deposit and burn away, be conducive to carbonate decomposition, improved quality, granularmetric composition and the intensity of sintering deposit.
Accompanying drawing explanation
Fig. 1 is that the master of the utility model structure looks cross-sectional schematic.
The specific embodiment
Embodiment 1
As shown in Figure 1, the utility model comprises that the discharging opening of the loading hopper 2(loading hopper 2 that is arranged at cooling chamber 1 top is communicated with cooling chamber 1), the top of described loading hopper 2 is provided with disintegrating machine 6, the discharging opening of described disintegrating machine 6 is communicated with by chute 8 with the charging aperture of loading hopper 2, in described disintegrating machine 6, is provided with crushed aggregates device.Described crushed aggregates device is particle roller 7, and in the present embodiment, described particle roller 7 is one, and its two ends are movably connected on disintegrating machine 6, and are furnished with driving power.The roll body surface of described particle roller 7 is provided with blade, the described blade roll body surface that is distributed in particle roller 7 straggly.
Claims (5)
1. the feeding device of vertical cooling and waste heat recovery stove for sintering deposit, it is characterized in that: comprise the loading hopper (2) that is arranged at cooling chamber (1) top, the top of described loading hopper (2) is provided with disintegrating machine (6), the discharging opening of described disintegrating machine (6) is communicated with the charging aperture of loading hopper (2), and described disintegrating machine is provided with crushed aggregates device in (6).
2. the feeding device of vertical cooling and waste heat recovery stove for sintering deposit as claimed in claim 1, is characterized in that: described crushed aggregates device is particle roller (7), and described particle roller (7) is one or two, and its two ends are movably connected on disintegrating machine (6).
3. the feeding device of vertical cooling and waste heat recovery stove for sintering deposit as claimed in claim 2, is characterized in that: described particle roller (7) is furnished with driving power.
4. the feeding device of vertical cooling and waste heat recovery stove for sintering deposit as claimed in claim 2, it is characterized in that: the roll body surface of described particle roller (7) is provided with blade, the described blade roll body surface that is distributed in particle roller (7) straggly, or described blade extends to the other end of particle roller (7) in the shape of a spiral from one end of particle roller (7).
5. the feeding device of vertical cooling and waste heat recovery stove for sintering deposit as claimed in claim 1, is characterized in that: between the charging aperture of described loading hopper (2) and the discharging opening of disintegrating machine (6), by chute, be communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814396.4U CN203586846U (en) | 2013-12-12 | 2013-12-12 | Feeding device for vertical cooling and waste heat recovering furnace for sintering ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320814396.4U CN203586846U (en) | 2013-12-12 | 2013-12-12 | Feeding device for vertical cooling and waste heat recovering furnace for sintering ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203586846U true CN203586846U (en) | 2014-05-07 |
Family
ID=50584754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320814396.4U Expired - Lifetime CN203586846U (en) | 2013-12-12 | 2013-12-12 | Feeding device for vertical cooling and waste heat recovering furnace for sintering ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203586846U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482530A (en) * | 2015-08-31 | 2017-03-08 | 宝山钢铁股份有限公司 | A kind of sintering deposit multipot type heat recovering device and sensible heat recovery method |
| CN109269307A (en) * | 2017-11-03 | 2019-01-25 | 山东耀华能源投资管理有限公司 | Totally-enclosed vertical air cooling kiln for sinter and working method thereof |
-
2013
- 2013-12-12 CN CN201320814396.4U patent/CN203586846U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482530A (en) * | 2015-08-31 | 2017-03-08 | 宝山钢铁股份有限公司 | A kind of sintering deposit multipot type heat recovering device and sensible heat recovery method |
| CN106482530B (en) * | 2015-08-31 | 2019-02-05 | 宝山钢铁股份有限公司 | It is a kind of to be sintered mining multipot type heat recovering device and sensible heat recovery method |
| CN109269307A (en) * | 2017-11-03 | 2019-01-25 | 山东耀华能源投资管理有限公司 | Totally-enclosed vertical air cooling kiln for sinter and working method thereof |
| CN109269307B (en) * | 2017-11-03 | 2024-03-08 | 山东耀华能源投资管理有限公司 | Totally-enclosed vertical air cooling kiln for sinter and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JIANGSU PAIER IRON STEEL ENERGY-SAVING TECHNOLOGY Co.,Ltd. Assignor: Wang Zhongying|Han Jianhuai|Zhao Qing Contract record no.: 2015320000219 Denomination of utility model: Feeding device for vertical cooling and waste heat recovering furnace for sintering ore Granted publication date: 20140507 License type: Exclusive License Record date: 20150415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: JIANGSU PAIER IRON STEEL ENERGY-SAVING TECHNOLOGY Co.,Ltd. Assignor: Wang Zhongying|Han Jianhuai|Zhao Qing Contract record no.: 2015320000219 Date of cancellation: 20160803 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160825 Address after: 208 room 18, 223005, science and technology road, Huaian economic and Technological Development Zone, Huaian, Jiangsu Patentee after: HUAIAN CISRI CO.,LTD. Address before: 223002 No. 188 South Xi'an Road, Jiangsu, Huaian Patentee before: Wang Zhongying Patentee before: Han Jianhuai Patentee before: Zhao Qing |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |