CN106907931A - Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln - Google Patents
Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln Download PDFInfo
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- CN106907931A CN106907931A CN201611246444.9A CN201611246444A CN106907931A CN 106907931 A CN106907931 A CN 106907931A CN 201611246444 A CN201611246444 A CN 201611246444A CN 106907931 A CN106907931 A CN 106907931A
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- sintering
- cold kiln
- waste heat
- kiln
- main exhauster
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- 238000005245 sintering Methods 0.000 title claims abstract description 114
- 239000002918 waste heat Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000002912 waste gas Substances 0.000 claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000007599 discharging Methods 0.000 claims description 20
- 239000012716 precipitator Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 15
- 239000011449 brick Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 4
- 229910000914 Mn alloy Inorganic materials 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 3
- 238000006392 deoxygenation reaction Methods 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 239000000872 buffer Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 13
- 238000010248 power generation Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009291 secondary effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0286—Cooling in a vertical, e.g. annular, shaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/04—Sintering
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Perpendicular cold kiln is used to reclaim process and system that sintering deposit waste heat drags main exhauster the present invention relates to a kind of, heat sinter exchanges heat in perpendicular cold kiln with cold air, send the superheated steam of waste heat boiler, generation to deliver to steam turbine after waste gas removing dust；Steam turbine directly drags main exhauster of sintering and operates by speed change clutch and synchronous motor.The present invention can to greatest extent improve the waste heat recovery rate of sintering deposit using the perpendicular cold kiln of new structure；The complementation of steam turbine power generation and power network electric energy is realized by synchronous motor, it is ensured that main exhauster of sintering runs well；Complete sintering plant energy utilization process system is constituted by perpendicular cold kiln, waste heat boiler, steam turbine and main exhauster of sintering, steam turbine directly provides power to main exhauster, reduce to power network power taking, and steam turbine power generation in routine techniques can be avoided to be connected to the grid, main exhauster of sintering from power network power taking when mechanical energy be converted to electric energy, electric energy is reconverted into the secondary efficiency loss caused by mechanical energy, significant to energy-conservation wound effect.
Description
Technical field
The present invention relates to sintering deposit waste heat recovery and technical field is utilized, more particularly to a kind of perpendicular cold kiln reclaims sintering deposit
Waste heat drags the process and system of main exhauster.
Background technology
Main exhauster is the maximum energy consumption equipment of sintering plant, and its power consumption is about the 30% of full plant total electricity consumption；With
265m2As a example by sintering machine (95% operating rate), its supporting main exhauster power be 8000kW, whole year about power consumption 56630MWh,
Calculated by 0.547 yuan/kWh, need to paid tariff every year 30980000 yuan.
About 700~750 DEG C of sintering deposit temperature, supply blast furnace is cold ore deposit, central cooler with belt-cooling machine because of chips washing system,
About 30% waste-gas heat can only be reclaimed；Heat recovery rate, therefore mesh can be improved using vertical cooling kiln (erecting cold kiln) equipment
Preceding many R＆D institutions and enterprise reclaim sintering deposit waste heat using perpendicular cold kiln.Such as Patent No. 201310127744.5《Sintering
Ore deposit furnace type cooling device》, Patent No. 93117175.X《Vertical agglomerate cooling machine》, Patent No. 201310672967.X
's《Sintering deposit vertical cooling and waste heat recovery furnace》Etc., and existing 1 set of perpendicular cold kiln plant is in Tianjin Tian Feng steel operation fortune
OK, waste heat recovery rate is greatly improved.
It is current Normal practice to reclaim high-temp waste gas using steam boiler, and steam is incorporated into heat distribution pipe network and steam is utilized
It is also energy conversion mode more conventional at present that dragging steam turbine power generation is connected to the grid.Such as Patent No. 201520756682.9
's《Sintering mine sensible heat retracting device》, Patent No. 201610150596.2《One kind is efficient for sintering deposit cooling and sensible heat
Recycling system》, Patent No. 201310127764.2《A kind of sintering deposit waste heat high efficiente callback electrification technique with jig
And equipment》Employ the mode of perpendicular cold kiln+waste heat boiler+steam turbine.The terminal of above-mentioned process route is steam turbine power generation
It is grid-connected, and main exhauster of sintering is needed from power network power taking, in steam turbine power generation, mechanical energy is converted to electric energy and sinters main exhausting
During electric energy is converted to the conversion process of energy twice of mechanical energy during machine power taking, it is necessary to there is energy loss, and due to power consumption
Huge, it is also very surprising that energy waste and corresponding fund caused by the energy loss are wasted.
The sealing for erecting cold kiln determines waste gas recovery rate, and it leaks out and is a little mainly feeding and discharge system.It is domestic current
The perpendicular cold kiln material-uploading style for using has：Skew bridge+umbrella cloth form (patent No. 201511002240.6,《Polygonal multiaspect multilayer
360 degree of air-supply sintering deposit cooling towers》)；Chain scraper conveyor+rotation cloth form (patent No. 201320185479.1,《One kind is burnt
Knot ore deposit stove formula cooling heat exchange device》；The patent No. 201520756682.9,《Sintering mine sensible heat retracting device》)；Discharged with sintering machine
End direct-connected+clock-type/umbrella cloth form (patent No. 201310127744.5,《Sintering deposit furnace type cooling device》；The patent No.
93117175.X,《Vertical agglomerate cooling machine》；Patent No. 201310672967.X,《Sintering deposit is returned with vertical cooling and waste heat
Receive stove》)；Wherein skew bridge feeding is interruption operation, and monobucket tumbles, but the top seal of kiln top work continuously not as carrier bar, head
The effect for rolling discharging is good.The material-uploading style direct-connected with sintering machine discharge end is to the sintering machine of preceding working procedure and the height cloth of shaft furnace
It is equipped with significant limitation.
At present erect cold kiln frequently with discharge way have：Star-like unloader (patent No. 201220491407.5,《It is a kind of high
Effect heat quantity reclaiming type sintered ore cooling system》；The patent No. 201610150596.2,《One kind is high for sintering deposit cooling and sensible heat
Effect recycling system》；The patent No. 200910074513.6,《It is a kind of can high efficiente callback sintering mine sensible heat vertical sintering deposit it is cold
But machine》)；Electromagnetic vibration feeder (patent No. 93117175.X,《Vertical agglomerate cooling machine》)；Electricity shakes quantitative removal device+rotary rowed
Material valve (patent No. 201320185290.2,《Sintering deposit cools down the device for discharging of stove》), (patent No. 201520756682.9《Burn
Knot ore deposit heat recovering device》).Because the sintering deposit for entering perpendicular cold kiln is required to granularity, it is impossible to too small, star-like/rotation discharging sets
Although standby good airproof performance, have because material extruding makes particulate material snap in equipment gap, the situation of the normal operation of influence occurs, compares
For electromagnetic vibration feeder do not exist particle situation, but sealing stock column to consider suitable height.
The height for erecting cold kiln heat recovery heating rate is relevant with solid and gas heat exchange situation, and cloth and cloth wind mode are crucial.It is domestic
The perpendicular cold kiln distributing mode for using at present has：Rotation cloth (patent No. 201520756682.9,《Sintering mine sensible heat reclaims dress
Put》；The patent No. 201310127797.7,《Sintering deposit cooling stove rotation charging gear》)；Vertical screw feeding apparatus, clock-type cloth
(patent No. 201320185480.4,《A kind of sintering deposit cools down stove suspension type distributing device》；Patent No. 93117175.X,《Vertical burning
Knot ore deposit cooler》；The patent No. 201511002240.6,《360 degree of air-supply sintering deposit cooling towers of polygonal multiaspect multilayer》；The patent No.
201320814396.4,《Sintering deposit vertical cooling and the feeding device of waste heat recovery furnace》) etc..The cloth wind mode of use has：
If the air-supply of multiple air compartment peripheries (patent No. 201310128026.X,《A kind of sintering deposit cools down stove》)；Center air-supply (the patent No.
201320814379.0,《Sintering deposit send cooling air unit with vertical cooling and waste heat recovery furnace》), center (multilayer umbrella shape) and week
Side (vane) mutually blow with reference to (patent No. 201520756682.9,《Sintering mine sensible heat retracting device》)；Louvre ventilation lattice are (specially
Profit number 201511002240.6,《360 degree of air-supply sintering deposit cooling towers of polygonal multiaspect multilayer》)；Many Fans circumference (patents
Numbers 200910074513.6,《It is a kind of can high efficiente callback sintering mine sensible heat vertical sinter cooler》), (patent No.
93117175.X,《Vertical agglomerate cooling machine》) etc..Existing apparatus for distributing makes big material edge distribution, by changing material
Stocking angle improves distribution situation, can not accomplish material being uniformly distributed on kiln cross section.Air supply mode using periphery with
The form that center is combined is adapted to the shaft furnace in large scale section, ensure that cold wind is uniform with material and fully contacts.
In sum, it is existing erect that cold kiln generally existing sealing is poor, material skewness the problems such as, cause site environment
Difference, drop temperature is high, and recovery EGT is low, directly affects operation and heat recovery rate and the calorific value of discharging conveying equipment,
Its consequence is that created economic benefit is not good, and equipment maintenance cost is high.
The content of the invention
Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln the invention provides a kind of, is adopted
Sintering deposit is cooled down with the cold kiln of Novel vertical, the waste heat recovery rate of sintering deposit can be to greatest extent improved, improves production environment；Erect cold kiln
The waste gas of generation generates steam and send steam turbine by waste heat boiler, and the mechanical energy that steam turbine is produced directly drags main exhauster of sintering
Operation, and the complementation of steam turbine power generation and power network electric energy is realized by synchronous motor, it is ensured that the normal operation of main exhauster of sintering；
By erecting the complete sintering plant energy utilization process system that cold kiln, waste heat boiler, steam turbine and main exhauster of sintering are constituted, by vapour
Turbine directly provides power to main exhauster, reduces to power network power taking, and steam turbine power generation is incorporated to electricity in can avoiding routine techniques
Net, main exhauster of sintering from power network power taking when mechanical energy be converted to electric energy, electric energy is reconverted into the secondary effect caused by mechanical energy
Rate is lost, significant to energy-conservation wound effect.
In order to achieve the above object, the present invention is realized using following technical scheme：
The process that sintering deposit waste heat drags main exhauster is reclaimed with perpendicular cold kiln, is comprised the following steps：
1) sintering machine production more than 700 DEG C heat sinter through single roll crusher crush after fall into chute, by electricity shake to
Material machine one is given to bucket chain conveyor, is then lifted out feeding and erects cold kiln；The top for erecting cold kiln sets revolving top and distributor, distributes
Device is constituted by along the multiple feeding chutes for erecting cold kiln circumference uniform distribution；Sintering deposit is slipped from bucket chain conveyor head discharge by material feeding
Groove enters revolving top, and along distributor circumference cloth, feeding chute is used for blanking and buffers and by heat sinter revolving top
It is distributed on perpendicular cold kiln cross section；The cold wind erected in cold kiln is provided by air blower, and cold wind is located at the centre wind for erecting cold kiln bottom
Road air outlet and annular passage air outlet, it is ensured that cold wind is erecting the uniformity of distribution in cold kiln；
2) in cold kiln is erected, sintering deposit carries out countercurrent flow with cold air, and the sintering deposit of 135 DEG C of temperature ＜ is by kiln after cooling
The uniform multiple discharging chutes in bottom and electric vibrating feeder two unload to ribbon conveyer outward transport；In kiln more than 586 DEG C of waste gas by
Kiln top row enters gravitational precipitator carries out one-time dedusting, and the waste gas after dedusting introduces waste heat boiler by pipeline；
3) in waste heat boiler, waste gas carries out heat exchange with water, and the superheated steam of generation delivers to steam turbine；It is low after heat exchange
Warm waste gas carries out final dusting into sack cleaner, the powder that the dust after sedimentation is collected together with gravitational precipitator and waste heat boiler
Dirt is concentrated by chain scraper conveyor transport outward together；After the purification of waste gas removing dust is up to standard, it is sent to outside chimney by air-introduced machine and is arranged；
4) heat energy of superheated steam is converted into mechanical energy by steam turbine, drives speed change clutch to rotate and drive synchronous motor
Operating, synchronous motor drives the blade rotation of main exhauster of sintering to realize the operating of main exhauster of sintering；When steam turbine energy StrongmenGroup
Yu Shi, synchronous motor dump energy is connected to the grid and uses；When steam turbine scarce capacity, synchronous motor is from power network power taking for sintering
Main exhauster is used, and ensures that main exhauster of sintering runs well；
5) cooling steam after dragging steam turbine is into realizing recycling in waste heat boiler；Condensed by condenser first,
Condensate delivers to sweet-water tank by condensate pump, is sent after heating, deoxygenation in being sequentially sent to heater, oxygen-eliminating device through low pressure feed water pump
To feedwater drum, then superheated steam is produced to be sent to steam turbine after evaporator and superheater.
The revolving top, air blower, electric vibrating feeder one, the drive device of electric vibrating feeder two are frequency conversion control
System, it is ensured that erect the adequacy and uniformity of stability and the heat sinter cooling of charge level in cold kiln.
Use for realizing the process is erected cold kiln and reclaims the process system that sintering deposit waste heat drags main exhauster, bag
Include perpendicular cold kiln, gravitational precipitator, waste heat boiler, steam turbine, speed change clutch, the synchronous motor being sequentially connected according to process route
And main exhauster of sintering；The heat sinter charging aperture top erected at the top of cold kiln sets material acceptance glide chute, and the single roller after sintering machine breaks
Broken machine connects material acceptance glide chute by chute, electric vibrating feeder one and bucket chain conveyor；The bottom of material acceptance glide chute is by rotating cloth
Device connects distributor, and revolving top is made up of distributing device body, rotation distributing trough and motor, and rotation distributing trough is in cloth
The tilted setting of device body, its top is located at distributing device bodies top edge and transmission is connected with motor, and bottom is located to be divided
Orchestration upper center position, distributing trough is rotated under motor drive and is rotated around perpendicular cold kiln axis；Distributor is by top cylinder
The feeding chute composition that body and bottom multiple are evenly distributed, feeding chute is the downward pyramidal structure for expanding, and its discharge end sets
Erecting the upper space of cold kiln；The bottom for erecting cold kiln sets center duct outlet and annular passage air outlet, annular passage air-out
The outer ledge that opening's edge erects cold kiln sets multiple, and center air channel and annular passage connect air blower by airduct respectively；Erect cold kiln
Bottom is provided with multiple along the circumferential direction uniform discharging chutes, discharging chute bottom connection ribbon conveyer；Erect the top of cold kiln
Waste gas outlet connects gravitational precipitator, the evaporator in high-temp waste gas pipeline connection waste heat boiler after gravitational precipitator, low temperature
Exhaust piping connects chimney by sack cleaner and air-introduced machine.
The dust outlet of the gravitational precipitator, sack cleaner and waste heat boiler connects chain scraper conveyor respectively.
Evaporator, superheater, condenser, heater and oxygen-eliminating device are provided with the waste heat boiler, the evaporator passes through
Superheater connects the superheated steam entrance of steam turbine；The cooling steam outlet connection condenser of steam turbine, condenser is by condensing
Water pump connects sweet-water tank, and sweet-water tank connects heater and oxygen-eliminating device, the superheat steam pipeline after oxygen-eliminating device by feed pump
By feeding water, drum connects evaporator.
The chute, material acceptance glide chute, rotation distributing trough, distributor, discharging chute body by boiler plate or it is heat-resisting not
Rust steel is made, and sets as needed or does not set liner, and liner is made up of high abrasion manganese alloy steel plate or refractory material.
The perpendicular inwall of the cold kiln from more than annular passage air outlet sets lining, and lining is incubated by inner operative layer and outer layer
Layer composition, by laying fireproof bricks, outer layer heat-insulation layer fire-proof spray coating is formed inner operative layer, and lining is by support brick ring support.
The bucket chain conveyor sets sealing thermal insulation cover.
The motor includes being symmetricly set on 2 motors at distributing device bodies top edge, distributing device bodies top
Edge sets gear ring, and gear ring is rotated by motor, and be located at rotation distributing trough at the top of meshed transmission gear, be rotated
Distributing trough is moved along distributing device bodies top edge and realizes rotating distributing trough around the rotation for erecting cold kiln central axis.
The quantity of the feeding chute and discharging chute is 6.
Compared with prior art, the beneficial effects of the invention are as follows：
1) using the cold kiln cooling sintering deposit of Novel vertical, material particles being uniformly distributed in kiln, and charge level in kiln are capable of achieving
Good stability, hot ore deposit cooling fully, uniformly, improves the waste heat recovery rate of sintering deposit to greatest extent, and overall tightness is good,
Production environment can be improved；
2) waste gas for erecting cold kiln generation send steam turbine by waste heat boiler generation steam, and the mechanical energy that steam turbine is produced is direct
Dragging main exhauster of sintering operation, the complementation of steam turbine power generation and power network electric energy is realized by synchronous motor, it is ensured that sintering master take out
The normal operation of blower fan；Its principle is unique, structure is novel, be skillfully constructed, flexible operation mode；
3) by erecting the complete sintering plant energy utilization work that cold kiln, waste heat boiler, steam turbine and main exhauster of sintering are constituted
Process system, directly power is provided from steam turbine to main exhauster, is reduced to power network power taking, and can avoid steam turbine in routine techniques
Generating is connected to the grid, main exhauster of sintering from power network power taking when mechanical energy be converted to electric energy, electric energy is reconverted into mechanical energy and is made
Into secondary efficiency loss, to energy-conservation wound effect it is significant.
Brief description of the drawings
Fig. 1 is that perpendicular cold kiln of the present invention reclaims the flow that sintering deposit waste heat drags the process of main exhauster
Figure.
Fig. 2 is the facade structures schematic diagram for erecting cold kiln of the present invention.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is the top view of distributor.
In figure：1. the material feeding of 2. single roll crusher of sintering machine, 3. chute, 4. electric vibrating feeder, one 5. bucket chain conveyor 6.
The cylinder of 8. distributor of rotation 73. motor of distributing trough of 7. revolving top of chute, 71. distributing trough body 72. 81.
82. feeding chutes 9. erect the discharging of 93. refractory brick of Leng Yao 91. center duct outlet, 92. annular passage air outlets 10. and slip
The chain scraper conveyor 16. of 14. waste heat boiler of groove 11. electric vibrating feeder, 2 12. ribbon conveyer, 13. gravitational precipitator 15.
Chimney
Specific embodiment
Specific embodiment of the invention is described further below in conjunction with the accompanying drawings：
As shown in figure 1, perpendicular cold kiln of the present invention reclaims the process that sintering deposit waste heat drags main exhauster, including
Following steps：
1) heat sinter of more than 700 DEG C of the production of sintering machine 1 falls into chute 3 after being crushed through single roll crusher 2, is shaken by electricity
Batcher 1 is given to bucket chain conveyor 5, is then lifted out the perpendicular cold kiln 9 of feeding；The top of perpendicular cold kiln 9 sets revolving top 7 and distribution
Device 8, distributor 8 is made up of the multiple feeding chutes 82 along the perpendicular circumference uniform distribution of cold kiln 9；Sintering deposit is unloaded from the head of bucket chain conveyor 5
Material, by material acceptance glide chute 6 enter revolving top 7, revolving top 7 along the circumference cloth of distributor 8, under feeding chute 82 is used for
Simultaneously be distributed on heat sinter on the perpendicular cross section of cold kiln 9 by material buffering；Cold wind in perpendicular cold kiln 9 is provided by air blower, and cold wind is setting
Center duct outlet 91 and the air-out of annular passage air outlet 92 in the perpendicular bottom of cold kiln 9, it is ensured that cold wind distribution in perpendicular cold kiln 9
Uniformity；
2) in perpendicular cold kiln 9, sintering deposit carries out countercurrent flow with cold air, after cooling the sintering deposit of 135 DEG C of temperature ＜ by
The uniform multiple discharging chutes 10 of kiln bottom and electric vibrating feeder 2 11 unload to ribbon conveyer 12 outward transport；More than 586 DEG C in kiln
Waste gas gravitational precipitator 13 entered by kiln top row carry out one-time dedusting, the waste gas after dedusting introduces waste heat boiler 14 by pipeline；
3) in waste heat boiler 14, waste gas carries out heat exchange with water, and the superheated steam of generation delivers to steam turbine；After heat exchange
Low temperature waste gas carry out final dusting into sack cleaner, and the dust after sedimentation is received together with gravitational precipitator 13 and waste heat boiler 14
The dust of collection concentrates outward transport by chain scraper conveyor 15 together；After the purification of waste gas removing dust is up to standard, it is sent to outside chimney 16 by air-introduced machine
Row；
4) heat energy of superheated steam is converted into mechanical energy by steam turbine, drives speed change clutch to rotate and drive synchronous motor
Operating, synchronous motor drives the blade rotation of main exhauster of sintering to realize the operating of main exhauster of sintering；When steam turbine energy StrongmenGroup
Yu Shi, synchronous motor dump energy is connected to the grid and uses；When steam turbine scarce capacity, synchronous motor is from power network power taking for sintering
Main exhauster is used, and ensures that main exhauster of sintering runs well；
5) cooling steam after dragging steam turbine is recycled into realization in waste heat boiler 14；It is cold by condenser first
Solidifying, condensate delivers to sweet-water tank by condensate pump, heating, deoxygenation in being sequentially sent to heater, oxygen-eliminating device through low pressure feed water pump
After deliver to feedwater drum, then produce superheated steam to be sent to steam turbine after evaporator and superheater.
The revolving top 7, air blower, electric vibrating feeder 1, the drive device of electric vibrating feeder 2 11 are frequency conversion
Control, it is ensured that the stability of charge level and the adequacy and uniformity of heat sinter cooling in perpendicular cold kiln 9.
As shown in Figure 1 and Figure 2, the sintering deposit waste heat main exhausting of dragging is reclaimed for realizing that the use of the process erects cold kiln
The process system of machine, including perpendicular cold kiln 9, gravitational precipitator 13, the waste heat boiler 14, steamer being sequentially connected according to process route
Machine, speed change clutch, synchronous motor and main exhauster of sintering；The heat sinter charging aperture top for erecting the top of cold kiln 9 sets to be received
Material chute 6, the single roll crusher 2 after sintering machine 1 connects material feeding and slips by chute 3, electric vibrating feeder 1 and bucket chain conveyor 5
Groove 6；As shown in figure 3, the bottom of material acceptance glide chute 6 connects distributor 8 by revolving top 7, revolving top 7 is by distributing device sheet
Body 71, rotation distributing trough 72 and motor 73 are constituted, and rotate distributing trough 72 in the tilted setting of distributing device body 71, its top
Transmission is connected positioned at the top sides of distributing device body 71 edge and with motor 73, bottom is located at the upper center position of distributor 8,
Motor 73 drives lower rotation distributing trough 72 to be rotated around the perpendicular axis of cold kiln 9；Distributor 8 is multiple by top cylinder 81 and bottom
The feeding chute 82 being evenly distributed is constituted (as shown in Figure 4), and feeding chute 82 is the pyramidal structure for expanding downwards, its discharge end
It is located at the upper space of perpendicular cold kiln 9；The bottom of perpendicular cold kiln 9 sets center duct outlet 91 and annular passage air outlet 92, annular
Duct outlet 92 sets multiple along the outer ledge of perpendicular cold kiln 9, and center air channel and annular passage are connected by airduct rouse respectively
Blower fan；The perpendicular bottom of cold kiln 9 is provided with multiple along the circumferential direction uniform discharging chutes 10, the bottom of discharging chute 10 connection belt conveying
Machine 12；The top waste gas outlet connection gravitational precipitator 13 of perpendicular cold kiln 9, the high-temp waste gas pipeline connection after gravitational precipitator 13 is remaining
Evaporator in heat boiler 14, low temperature waste gas pipeline connects chimney 16 by sack cleaner and air-introduced machine.
The dust outlet of the gravitational precipitator 13, sack cleaner and waste heat boiler 14 connects chain scraper conveyor respectively
15。
Evaporator, superheater, condenser, heater and oxygen-eliminating device are provided with the waste heat boiler 14, the evaporator leads to
Cross the superheated steam entrance that superheater connects steam turbine；The cooling steam outlet connection condenser of steam turbine, condenser is by solidifying
Pump connection sweet-water tank is born water, sweet-water tank connects heater and oxygen-eliminating device, the overheated steam pipe after oxygen-eliminating device by feed pump
Road connects evaporator by the drum that feeds water.
The chute 3, material acceptance glide chute 6, rotation distributing trough 72, distributor 8, the body of discharging chute 10 by boiler plate or
Heat-resistance stainless steel is made, and sets as needed or does not set liner, and liner is made up of high abrasion manganese alloy steel plate or refractory material.
The perpendicular cold kiln 9 sets lining from the inwall of annular passage air outlet more than 92, and lining is by inner operative layer and outer layer
Heat-insulation layer is constituted, and by laying fireproof bricks, outer layer heat-insulation layer fire-proof spray coating is formed inner operative layer, and lining is by support brick ring support.
The bucket chain conveyor 5 sets sealing thermal insulation cover.
The motor 73 includes being symmetricly set on 2 motors on the top sides edge of distributing device body 71, distributing device body
Along setting gear ring, gear ring is rotated by 71 top sides in motor, and be located at the meshed transmission gear at the top of rotation distributing trough 72,
Distributing trough 72 is rotated along the movement of the top sides of distributing device body 71 edge and realizes rotation distributing trough 72 around the perpendicular central axis of cold kiln 9
Rotation.
The quantity of the feeding chute 82 and discharging chute 10 is 6.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (10)
1. the process that sintering deposit waste heat drags main exhauster of sintering is reclaimed with perpendicular cold kiln, it is characterised in that including following step
Suddenly：
1) heat sinter of more than 700 DEG C of sintering machine production falls into chute after being crushed through single roll crusher, by electric vibrating feeder
One gives to bucket chain conveyor, is then lifted out feeding and erects cold kiln；The top for erecting cold kiln sets revolving top and distributor, distributor by
Along the multiple feeding chutes composition for erecting cold kiln circumference uniform distribution；Sintering deposit is entered from bucket chain conveyor head discharge by material acceptance glide chute
Enter revolving top, along distributor circumference cloth, feeding chute is used for blanking and buffers and heat sinter is uniform revolving top
On cold kiln cross section is erected；The cold wind erected in cold kiln is provided by air blower, and cold wind is said located at the centre wind for erecting cold kiln bottom
Air port and annular passage air outlet, it is ensured that cold wind is erecting the uniformity of distribution in cold kiln；
2) in cold kiln is erected, sintering deposit carries out countercurrent flow with cold air, and the sintering deposit of 135 DEG C of temperature ＜ is equal by kiln bottom after cooling
Multiple discharging chutes and electric vibrating feeder two of cloth unload to ribbon conveyer outward transport；More than 586 DEG C of waste gas is by kiln top in kiln
Entering gravitational precipitator carries out one-time dedusting, and the waste gas after dedusting introduces waste heat boiler by pipeline；
3) in waste heat boiler, waste gas carries out heat exchange with water, and the superheated steam of generation delivers to steam turbine；Low temperature after heat exchange gives up
Gas carries out final dusting into sack cleaner, the dust one that the dust after sedimentation is collected together with gravitational precipitator and waste heat boiler
Rise to be concentrated by chain scraper conveyor and transport outward；After the purification of waste gas removing dust is up to standard, it is sent to outside chimney by air-introduced machine and is arranged；
4) heat energy of superheated steam is converted into mechanical energy by steam turbine, drives speed change clutch to rotate and drive synchronous motor to transport
Turn, synchronous motor drives the blade rotation of main exhauster of sintering to realize the operating of main exhauster of sintering；When steam turbine ability is more than needed
When, synchronous motor dump energy is connected to the grid and uses；When steam turbine scarce capacity, synchronous motor is led from power network power taking for sintering
Air exhauster is used, and ensures that main exhauster of sintering runs well；
5) cooling steam after dragging steam turbine is into realizing recycling in waste heat boiler；Condensed by condenser first, condensed
Water delivers to sweet-water tank by condensate pump, heating in being sequentially sent to heater, oxygen-eliminating device through low pressure feed water pump, deliver to after deoxygenation to
Steam bag, then produce superheated steam to be sent to steam turbine after evaporator and superheater.
2. perpendicular cold kiln according to claim 1 reclaims the process that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, the revolving top, air blower, electric vibrating feeder one, the drive device of electric vibrating feeder two are frequency conversion control
System, it is ensured that erect the adequacy and uniformity of stability and the heat sinter cooling of charge level in cold kiln.
3. it is used to realize that the use of process described in claim 1 is erected cold kiln and reclaims sintering deposit waste heat dragging main exhauster of sintering
Process system, it is characterised in that including the perpendicular cold kiln, gravitational precipitator, waste heat boiler, the steamer that are sequentially connected according to process route
Machine, speed change clutch, synchronous motor and main exhauster of sintering；The heat sinter charging aperture top erected at the top of cold kiln sets material feeding
Chute, the single roll crusher after sintering machine connects material acceptance glide chute by chute, electric vibrating feeder one and bucket chain conveyor；Material feeding is slipped
The bottom of groove connects distributor by revolving top, and revolving top is by distributing device body, rotation distributing trough and motor
Constitute, rotation distributing trough is in the tilted setting of distributing device body, and its top is positioned at distributing device bodies top edge and electric with driving
Machine connection transmission, bottom is located at distributor upper center position, and distributing trough is rotated under motor drive around perpendicular cold kiln axis
Line is rotated；Distributor is made up of the feeding chute that top cylinder and bottom multiple are evenly distributed, and feeding chute is expansion downwards
Pyramidal structure, its discharge end is located at the upper space of perpendicular cold kiln；The bottom for erecting cold kiln sets center duct outlet and annular wind
Road air outlet, annular passage air outlet sets multiple along the outer ledge for erecting cold kiln, and center air channel and annular passage pass through respectively
Airduct connects air blower；Erect cold kiln bottom portion and be provided with multiple along the circumferential direction uniform discharging chutes, discharging chute bottom connect band
Formula conveyer；The top waste gas outlet connection gravitational precipitator of cold kiln is erected, the high-temp waste gas pipeline connection after gravitational precipitator is remaining
Evaporator in heat boiler, low temperature waste gas pipeline connects chimney by sack cleaner and air-introduced machine.
4. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, the dust outlet of the gravitational precipitator, sack cleaner and waste heat boiler connects chain scraper conveyor respectively.
5. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, evaporator, superheater, condenser, heater and oxygen-eliminating device are provided with the waste heat boiler, and the evaporator passes through
Superheater connects the superheated steam entrance of steam turbine；The cooling steam outlet connection condenser of steam turbine, condenser is by condensing
Water pump connects sweet-water tank, and sweet-water tank connects heater and oxygen-eliminating device, the superheat steam pipeline after oxygen-eliminating device by feed pump
By feeding water, drum connects evaporator.
6. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
Be characterised by, the chute, material acceptance glide chute, rotation distributing trough, distributor, discharging chute body by boiler plate or it is heat-resisting not
Rust steel is made, and sets as needed or does not set liner, and liner is made up of high abrasion manganese alloy steel plate or refractory material.
7. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, the perpendicular inwall of the cold kiln from more than annular passage air outlet sets lining, lining is protected by inner operative layer and outer layer
Warm layer composition, by laying fireproof bricks, outer layer heat-insulation layer fire-proof spray coating is formed inner operative layer, and lining is by support brick ring support.
8. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, the bucket chain conveyor sets sealing thermal insulation cover.
9. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, the motor includes being symmetricly set on 2 motors at distributing device bodies top edge, distributing device bodies top
Edge sets gear ring, and gear ring is rotated by motor, and be located at rotation distributing trough at the top of meshed transmission gear, be rotated
Distributing trough is moved along distributing device bodies top edge and realizes rotating distributing trough around the rotation for erecting cold kiln central axis.
10. perpendicular cold kiln according to claim 3 reclaims the process system that sintering deposit waste heat drags main exhauster of sintering, its
It is characterised by, the quantity of the feeding chute and discharging chute is 6.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246444.9A CN106907931A (en) | 2016-12-29 | 2016-12-29 | Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln |
| JP2019535806A JP6854899B2 (en) | 2016-12-29 | 2017-12-29 | Bulk material cooling |
| EP17889512.4A EP3563108B1 (en) | 2016-12-29 | 2017-12-29 | Device, comprising a shaft cooler and an input device, and method for cooling hot sinter |
| CN201780081582.2A CN110678711B (en) | 2016-12-29 | 2017-12-29 | Cooling of bulk material |
| KR1020197018675A KR102389265B1 (en) | 2016-12-29 | 2017-12-29 | Cooling of bulk materials |
| UAA201907182A UA125441C2 (en) | 2016-12-29 | 2017-12-29 | Cooling of bulk material |
| PL17889512T PL3563108T3 (en) | 2016-12-29 | 2017-12-29 | Device, comprising a shaft cooler and an input device, and method for cooling hot sinter |
| RU2019119849A RU2762953C2 (en) | 2016-12-29 | 2017-12-29 | Cooling of bulk material |
| PCT/CN2017/119855 WO2018121733A1 (en) | 2016-12-29 | 2017-12-29 | Cooling of bulk material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246444.9A CN106907931A (en) | 2016-12-29 | 2016-12-29 | Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln |
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| Publication Number | Publication Date |
|---|---|
| CN106907931A true CN106907931A (en) | 2017-06-30 |
Family
ID=59207199
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246444.9A Pending CN106907931A (en) | 2016-12-29 | 2016-12-29 | Process and system that sintering deposit waste heat drags main exhauster are reclaimed with perpendicular cold kiln |
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| CN (1) | CN106907931A (en) |
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| CN107726868A (en) * | 2017-09-29 | 2018-02-23 | 中冶焦耐(大连)工程技术有限公司 | A kind of efficient cooling means of sintering deposit |
| CN107957200A (en) * | 2017-12-22 | 2018-04-24 | 中冶焦耐(大连)工程技术有限公司 | A kind of sinter multicell uprightly cools down furnace side and goes out formula feeding system |
| WO2018121733A1 (en) * | 2016-12-29 | 2018-07-05 | Primetals Technologies Austria GmbH | Cooling of bulk material |
| CN108759476A (en) * | 2018-06-15 | 2018-11-06 | 中冶东方工程技术有限公司 | Sinter erects the system that cold drives the direct Driving Fan recovery waste heat of steam turbine |
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| WO2018121733A1 (en) * | 2016-12-29 | 2018-07-05 | Primetals Technologies Austria GmbH | Cooling of bulk material |
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| CN107957200A (en) * | 2017-12-22 | 2018-04-24 | 中冶焦耐(大连)工程技术有限公司 | A kind of sinter multicell uprightly cools down furnace side and goes out formula feeding system |
| CN108759476A (en) * | 2018-06-15 | 2018-11-06 | 中冶东方工程技术有限公司 | Sinter erects the system that cold drives the direct Driving Fan recovery waste heat of steam turbine |
| CN108759476B (en) * | 2018-06-15 | 2019-12-06 | 中冶东方工程技术有限公司 | system for vertical cold machine of sintering deposit drives steam turbine and directly drags fan to retrieve waste heat |
| CN109268079A (en) * | 2018-09-30 | 2019-01-25 | 西安陕鼓动力股份有限公司 | The duty control method of steam turbine in Rotation Process drops in SHRT unit frequency-conversion |
| CN109268079B (en) * | 2018-09-30 | 2020-11-20 | 西安陕鼓动力股份有限公司 | Load control method of steam turbine in variable-frequency and rotational-speed-reduction process of SHRT unit |
| CN109443015A (en) * | 2018-11-20 | 2019-03-08 | 天津正元合科技开发有限公司 | A kind of kiln integral structure and the process system using the kiln integral structure |
| CN110081723A (en) * | 2019-04-25 | 2019-08-02 | 山东山大华特环保工程有限公司 | Sinter vertical multi-return cooling tower Exposure degree electricity generation system and its method |
| CN110180287A (en) * | 2019-05-31 | 2019-08-30 | 宜昌鸿昌电子有限责任公司 | A kind of energy saving and environment friendly ladle revolving burner exhaust emission device |
| CN110180287B (en) * | 2019-05-31 | 2024-04-05 | 宜昌鸿昌电子有限责任公司 | Energy-saving and environment-friendly type steel ladle rotary furnace exhaust emission device |
| CN112240710A (en) * | 2020-11-02 | 2021-01-19 | 胡锡文 | Vertical flow annular cooler for cement clinker |
| CN112524958A (en) * | 2021-01-15 | 2021-03-19 | 广西柳钢新材料科技有限公司 | Negative pressure air inlet cooling device for suspension cylinder of Maerz kiln |
| CN114718682A (en) * | 2022-04-13 | 2022-07-08 | 中冶东方工程技术有限公司 | Sintering steam dragging system and method |
| CN114718682B (en) * | 2022-04-13 | 2024-02-09 | 中冶东方工程技术有限公司 | Sintering steam dragging system and method |
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Effective date of registration: 20180305 Address after: 114000 Tiexi District, Anshan City, No. 1 Ring Road, No. Applicant after: ANSTEEL ENGINEERING TECHNOLOGY Corp.,Ltd. Applicant after: SIEMENS VAI METALS TECHNOLOGIES GmbH Address before: 114000 Tiexi District, Anshan City, No. 1 Ring Road, No. Applicant before: ANSTEEL ENGINEERING TECHNOLOGY Corp.,Ltd. |
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