CN206177050U - Large -scale suspension kiln - Google Patents
Large -scale suspension kiln Download PDFInfo
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- CN206177050U CN206177050U CN201621140072.7U CN201621140072U CN206177050U CN 206177050 U CN206177050 U CN 206177050U CN 201621140072 U CN201621140072 U CN 201621140072U CN 206177050 U CN206177050 U CN 206177050U
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- cyclone separator
- cooling
- separator
- per group
- group
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Abstract
The utility model relates to a large -scale suspension kiln, its system of calcining by the multistage cyclone of preheating, calcine reactor, middle separator and multistage cooling cyclone and constitute, the multistage cyclone of preheating on average divides into the multiunit, and every inter block admission line, exhaust duct that preheat between cyclone at different levels be the series connection, the group and organize between preheat the admitting air of cyclone, exhaust duct is parallel connection, multistage cooling cyclone on average divides into the multiunit, and admitting air between every inter block cyclone at different levels, exhaust, feeding and ejection of compact pipeline all adopt the series connection, and the group all adopts parallel connection with the admitting air of cooling cyclone, exhaust, feeding and ejection of compact pipeline between organizing. The utility model discloses a plurality of small dimension cyclone divide into groups, and, the mode that combines together of establishing ties realizes the maximization of suspension kiln, is ensureing under separation efficiency's the prerequisite that effective totality height that reduces the suspension kiln reduces the resistance to motion of system to control construction and running cost.
Description
Technical field
This utility model is related to cement and refractories industry suspension roasting kiln, more particularly to a kind of large-scale suspension
Kiln.
Background technology
Suspension roasting technology is widely used for the calcining technology of cement industry and refractories industry.With sending out for industry
Exhibition and science and technology progress, the continuous increase of industrial production scale, manufacturing enterprise to furnace equipment specification, ability requirement also by
Gradually improve.Therefore, the technological development of large-scale suspension kiln is trend of the times.
Suspension kiln calcination system is mainly by pre- hot cyclone separator, calcination reactor, intermediate separator and cooling whirlwind point
From device composition.According to traditional large-scale kiln design be accustomed to, be carry out by the specification of existing small scale equipment it is scaling,
Rearrange again.But for suspension kiln, after the increase of multicyclone apparatus size, decline can separation efficiency, make
Waste into system energy.Gas pipeline between cyclone separator at different levels increases with equipment and lengthens so that whole kiln system
Drag losses increases, and increased the power consumption of blower fan.Because each equipment is arranged in a vertical direction in suspension kiln, kiln body and Factory Building are all very
Height, and the increase of equipment size can greatly increase the factory building height of suspension kiln, for super-high buildings, height often increases by one meter
Its construction cost also can be increased considerably, therefore in large-scale suspension kiln development process, rationally control kiln body height is that control is built
It is set as this key.
The content of the invention
This utility model provide a kind of large-scale suspension kiln, using multiple small dimension cyclone separator be grouped, and and, series connection
The mode for combining on the premise of separation efficiency is guaranteed, effectively reduces the totality of suspension kiln realizing the maximization of suspension kiln
Highly, system operation resistance is reduced, so as to control to build and operating cost.
In order to achieve the above object, this utility model employs the following technical solutions realization：
A kind of large-scale suspension kiln, the suspension kiln is removed by source material delivery system, calcination system, Finished Product Transport System and smoke evacuation
Dirt system is constituted；The calcination system is revolved by multistage pre- hot cyclone separator, calcination reactor, intermediate separator and multistage cooling
Wind separator is constituted；Wherein：
Multistage pre- hot cyclone separator is divided into multigroup, is made up of some pre- hot cyclone separators per group；Feedstock transportation
The feeding device of system is connected with the feed pipe before the pre- hot cyclone separator of one-level, the feed pipe of multistage pre- hot cyclone separator
Road is sequentially connected in series；And in per group pre- hot cyclone separators at different levels feed pipe respectively with the row of the pre- hot cyclone separator of next stage
Feed channel connects；Drainage line in per group between cyclone separator at different levels is connected in series, the aerofluxuss of the pre- hot cyclone separator of each group
Sack cleaner, induced-draft fan and chimney are sequentially connected after pipe end parallel connection, are separated in the middle of connection after the parallel connection of admission line head end
The smoke discharging pipe of device；
It is multistage cooling cyclone separator be divided into it is multigroup, if being made up of dry cooling cyclone separator per group；It is each in per group
Feed pipe and discharge pipe between level cooling cyclone separator is and is connected in series, and each cooling cyclone separator in per group
The feed pipe that discharge duct cools down cyclone separator with upper level respectively is connected, and final stage cooling cyclone separator goes out in per group
Pipe material connects respectively the discharging belt conveyer of Finished Product Transport System；The admission line connection of final stage cooling cyclone separator in per group
Outside cooling duct road；Connect calcination reactor burner after the discharge duct parallel connection of first order cooling cyclone separator in each group
Secondary wind entrance；In each group the first order cooling cyclone separator feed pipe respectively with the discharge pipe of intermediate separator
Connection.
First order preheating cyclonic separation in effusion meter, per group is set on admission line before per group of pre- hot cyclone separator
Regulating valve is set on the discharge duct of device.
Connected by inverted U pipeline between the calcination reactor and intermediate separator.
Level-sensing device is mounted on the pre- hot cyclone separator, cooling cyclone separator, is respectively mounted back on discharge pipe
Turn discharge valve, thermometric, pressure instrumentation are respectively mounted on admission line and discharge duct.
Compared with prior art, the beneficial effects of the utility model are：
1) by preheating, cool down cyclone separator packet, the gas into each group cyclone separator is shunted, drop
Low gas flow, reduces the physical dimension of every grade of cyclone separator, and the separation efficiency of the cyclone separator of small dimension is higher,
And groups of small dimension cyclone separator can effectively reduce the overall height of suspension kiln；
2) air-flow is parallel flowing between preheating, cooling cyclone separator each group, and total pressure head is in each group cyclone separator
Maximum differential pressure, rather than each group pressure reduction summation, and the pressure reduction of small dimension cyclone separator is less, therefore, groups of little rule in parallel
Lattice cyclone separator total pressure head is less, and SR is lower；
3) pre- hot cyclone separator adopts the flowing heat transfer mode of high solid-gas ratio, therefore kiln discharge EGT is lower；
4) flowing heat transfer mode of the cyclone separator using low solid-gas ratio is cooled down, therefore kiln discharge temperature of charge is lower.
Description of the drawings
Fig. 1 is a kind of structural representation of large-scale suspension kiln described in the utility model.
Fig. 2 is a kind of dimensional structure diagram of large-scale suspension kiln described in the utility model.
Fig. 3 is the instrumentation points scattergram of the pre- hot cyclone separator of single group.
In figure：The pre- hot cyclone separator 4.4# of the pre- hot cyclone separator 3.3# of the pre- hot cyclone separator 2.2# of 1.1# are pre-
The pre- intermediate separators of 7. calcination reactor of hot cyclone separator 8. of the pre- hot cyclone separator 6.6# of hot cyclone separator 5.5#
9.1# cooling cyclone separator 10.2# cooling cyclone separator 11.3# cooling cyclone separator 12.4# cooling cyclonic separations
Device 13.5# cooling cyclone separator 14.6# cooling cyclone separator 15.7# cooling cyclone separator 16.8# cooling whirlwind
The bag-type dust of 20. regulating valve of separator 17.9# cooling revolution 19. discharging belt conveyers of discharge valve of cyclone separator 18. 21.
The inverted U pipeline T1. temperature instrumentation P1. pressure instrumentation FT. flows of 24. feeding device of device 22. induced-draft fan, 23. chimney 25.
Meter LA. level-sensing devices
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, a kind of large-scale suspension kiln described in the utility model, the suspension kiln by source material delivery system,
Calcination system, Finished Product Transport System and smoke discharging dust removing system composition；The calcination system by multistage pre- hot cyclone separator 1-6,
Calcination reactor 7, intermediate separator 8 and multistage cooling cyclone separator 9-17 compositions；Wherein：
Multistage pre- hot cyclone separator 1-6 is divided into multigroup, is made up of some pre- hot cyclone separators per group；Raw material is defeated
The feeding device 24 for sending system is connected with the feed pipe before the pre- hot cyclone separator of one-level, multistage pre- hot cyclone separator 1-6
Feed pipe be sequentially connected in series；And the feed pipe of pre- hot cyclone separators at different levels divides respectively with next stage preheating whirlwind in per group
Discharge duct from device connects；Drainage line in per group between cyclone separator at different levels is connected in series, each group preheating cyclonic separation
Sack cleaner 21, induced-draft fan 22 and chimney 23 are sequentially connected after the discharge duct end parallel connection of device, admission line head end is in parallel
Connect the smoke discharging pipe of intermediate separator 8 afterwards；
Multistage cooling cyclone separator 9-17 be divided into it is multigroup, if being made up of dry cooling cyclone separator per group；Per group
Feed pipe and discharge pipe between interior cooling cyclone separator at different levels is and is connected in series, and each cooling cyclonic separation in per group
The feed pipe that the discharge duct of device cools down cyclone separator with upper level respectively is connected, final stage cooling cyclone separator in per group
Discharge pipe connect the discharging belt conveyer 19 of Finished Product Transport System respectively；Final stage cools down the air inlet pipe of cyclone separator in per group
The outside cooling duct road of road connection；Connect calcination reactor after the discharge duct parallel connection of first order cooling cyclone separator in each group
The secondary wind entrance of 7 burners；In each group the first order cooling cyclone separator feed pipe respectively with intermediate separator 8
Discharge pipe connects.
Effusion meter FT is set on admission line before per group of pre- hot cyclone separator, first order preheating whirlwind point in per group
Regulating valve 20 is set on the discharge duct of device.
Connected by inverted U pipeline 25 between the calcination reactor and intermediate separator.
Level-sensing device LA is mounted on the pre- hot cyclone separator, cooling cyclone separator, is respectively mounted on discharge pipe
Revolution discharge valve 18, is respectively mounted thermometric, pressure instrumentation T1, P1 on admission line and discharge duct.
A kind of production technology of large-scale suspension kiln described in the utility model, gas flows from bottom to top in system, finally by
Kiln crown is discharged；Material is added by kiln crown, is flowed from top to bottom, is finally discharged from kiln bottom；Material and gas flow in kiln in adverse current
It is dynamic；Detailed process is as follows：
1) material is added by kiln crown, after pre- hot cyclone separator 1-6 preheatings at different levels, by the pre- hot cyclone separator of final stage
6 discharge nozzle is flow in calcination reactor 7；
2) material after preheating is entered in calcination reactor 7, and fuel is supplied by the burner installed in the bottom of calcination reactor 7
Enter and burn；The flue gas that material is produced with burning in calcination reactor 7 is fully contacted heat exchange, completes calcining；Flue gas drives material
Flow up together, intermediate separator 8 is entered into after inverted U pipeline 25；
3) material is together completed after cyclonic separation with flue gas into intermediate separator 8, and material is more by the bottom of intermediate separator 8
Individual discharge nozzle is branched in each group cooling cyclone separator；Heat smoke is diverted to each group by the smoke exhausting pipe at top road of intermediate separator 8
In pre- hot cyclone separator；
4) cooling air is pumped in cooling cyclone separator by system negative pressure, and material is in each group cooling cyclone separator
Discharge Jing after the cooling air eddy flow cooling in cooling cyclone separator at different levels, into Finished Product Transport System；Each group cools down whirlwind
After the cooling air cooling material of separator, finally collect in calcination reactor 7, participate in burning as auxiliary air；
5) in system operation, the pressure reduction in front and back that each group preheated/cooled down cyclone separator is adjusted by regulating valve 20, is protected
The gas flow that card flows through per group of preheating/cooling cyclone separator is consistent.
The computational methods of each specification of equipment size of suspension kiln calcination system are as follows：
1) suspension kiln systematic air flow is calculated according to suspension kiln yield, heat consumption, fuel value, according to raw meal particle size, severe
And gas severe determines the air conveying flow velocity of material, and then determine the internal diameter of calcination reactor 7；Forged according to material of different grain size
The time of staying needed for burning, determine the height of calcination reactor 7.
2) according to system off gas amount and pre- hot cyclone separator 1-6 packet counts, it is determined that per group of pre- hot cyclone separator enters
Throughput, according to the air inlet operating mode of the pre- hot cyclone separator of suspension kiln, gas flow rate generally takes 18~25m/s, thereby determines that pre-
The inlet size of hot cyclone separator 1-6, pre- hot cyclone separator 1-6 adopts efficient cyclone separator, according to inlet size and
The proportionality coefficient of each several part, it may be determined that the physical dimension of remainder.
3) according to the load and cooling air quantity needed for temperature computation of per group of cooling cyclone separator, cooling rotation is tried to achieve in the same manner
The import of wind separator 9-17 and remaining physical dimension.
As shown in figure 3, being respectively mounted level-sensing device LA on cyclone separator at different levels, revolution discharge valve is respectively mounted on discharge pipe
18, according to material position situation in cyclone separator at different levels, suitably adjust the discharging speed of its revolution discharge valve 18.Admission line, row
Temperature instrumentation T1, pressure instrumentation P1 are respectively mounted in feed channel, by the inlet and outlet pressure for detecting cyclone separator at different levels, can be true
Whether fixed its Gas-particle Flows are smooth, and by temperature detection fuel quantity, air capacity and feeding quantity can be suitably adjusted.
Effusion meter FT, the row of per group of most upper level cyclone separator are installed on the admission line of per group of pre- hot cyclone separator
Regulating valve 20 is mounted in feed channel, the pressure reduction in front and back of the pre- hot cyclone separator of each group is adjusted by regulating valve 20, it is ensured that stream
The gas flow for crossing the pre- hot cyclone separator of each group is consistent.
Following examples are implemented under premised on technical solutions of the utility model, give detailed embodiment
With specific operating process, but protection domain of the present utility model is not limited to following embodiments.Side used in following embodiments
Method is if no special instructions conventional method.
【Embodiment】
As shown in Figure 1 and Figure 2, in the present embodiment, (1#-6# is pre- for the at different levels pre- hot cyclone separator in suspension kiln calcination system
Hot cyclone separator) 3 groups are divided into, it is made up of 2 cyclone separator per group；The pre- hot cyclone separators of wherein 1# and 6# are one
Group, the pre- hot cyclone separators of 2# and 5# are one group, and the pre- hot cyclone separators of 3# and 4# are one group.Preheating whirlwind point at different levels in per group
Admission line, discharge duct between device is to be connected in series, admission line, the aerofluxuss of the pre- hot cyclone separator between group and group
Pipeline is to be connected in parallel.
Cooling cyclone separator at different levels are also divided into 3 groups, are made up of 3 cooling cyclone separator per group；Wherein 1#,
2#, 3# cooling cyclone separator is one group, and 4#, 5#, 6# cooling cyclone separator is one group, 7#, 8#, 9# cooling cyclone separator
For one group.Admission line, discharge duct, feed pipe and discharge pipe in per group between cyclone separator at different levels is using series connection
Connection, the admission line for cooling down cyclone separator, discharge duct, feed pipe and discharge pipe between group and group is using simultaneously
Connection connection.
Material sends into the pre- air inlets of hot cyclone separator 1 of 1# by feeding device, with heat smoke in the pre- hot cyclone separators of 1#
Inward turning flow separation, after discharging from the pre- hot cyclone separator discharge nozzles of 1#, sequentially passes through the pre- hot cyclone separators 2~6 of 2#~6#, complete
Into preheating.Enter after preheating in calcination reactor 7, with the burn flue gas of generation in calcination reactor heat exchange is fully contacted, complete
Calcining.Fuel is fed by the burner installed in calcination reactor bottom, and the flue gas for producing that burns drives material together to upstream
It is dynamic, intermediate separator 8 is entered into after inverted U pipeline.After material completes cyclonic separation with flue gas in intermediate separator 8,
Material is branched in each group cooling cyclone separator again by the multiple discharge nozzles in bottom.Cooling rotation of the material of shunting in respective group
With the cooling of cooling air eddy flow in wind separator, discharged by discharging belt conveyer 19 Jing after cooling cyclone separator coolings at different levels, entered
Enter Finished Product Transport System.
Cooling air is pumped into each group and cools down in cyclone separator by system negative pressure, finally collects to enter after cooling material and forges
Burn in reactor, participate in burning as auxiliary air.Flue gas and material in calcination reactor after burning together enters middle point
It is diverted in the pre- hot cyclone separator of each group by intermediate separator smoke exhausting pipe at top road from heat smoke after device, cyclonic separation.Each
Collect from after group inward eddy preheating and expel from kiln, Jing sack cleaners 21, induced-draft fan 22 are emitted into air from chimney 23.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
Be confined to this, any those familiar with the art in the technical scope that this utility model is disclosed, according to this practicality
New technical scheme and its utility model design in addition equivalent or change, all should cover in protection model of the present utility model
Within enclosing.
Claims (4)
1. a kind of large-scale suspension kiln, the suspension kiln is by source material delivery system, calcination system, Finished Product Transport System and smoke evacuation dedusting
System is constituted；Characterized in that, the calcination system by multistage pre- hot cyclone separator, calcination reactor, intermediate separator and
Multistage cooling cyclone separator composition；Wherein：
Multistage pre- hot cyclone separator is divided into multigroup, is made up of some pre- hot cyclone separators per group；Source material delivery system
Feeding device be connected with the feed pipe before the pre- hot cyclone separator of one-level, the feed pipe of multistage pre- hot cyclone separator according to
Secondary series connection；And in per group pre- hot cyclone separators at different levels feed pipe respectively with the exhaustor of the pre- hot cyclone separator of next stage
Road connects；Drainage line in per group between cyclone separator at different levels is connected in series, the discharge duct of the pre- hot cyclone separator of each group
Sack cleaner, induced-draft fan and chimney are sequentially connected after the parallel connection of end, after the parallel connection of admission line head end intermediate separator is connected
Smoke discharging pipe；
It is multistage cooling cyclone separator be divided into it is multigroup, if being made up of dry cooling cyclone separator per group；It is at different levels cold in per group
But the feed pipe and discharge pipe between cyclone separator is and is connected in series, and each aerofluxuss for cooling down cyclone separator in per group
The feed pipe that pipeline cools down cyclone separator with upper level respectively is connected, and final stage cools down the discharge nozzle of cyclone separator in per group
Road connects respectively the discharging belt conveyer of Finished Product Transport System；The admission line connection of final stage cooling cyclone separator is outside in per group
Cooling duct road；Connect the two of calcination reactor burner after the discharge duct parallel connection of first order cooling cyclone separator in each group
Secondary wind entrance；The feed pipe of the cooling cyclone separator of the first order connects respectively with the discharge pipe of intermediate separator in each group
Connect.
2. a kind of large-scale suspension kiln according to claim 1, it is characterised in that before per group of pre- hot cyclone separator
Effusion meter is set on admission line, regulating valve is set on the discharge duct of the pre- hot cyclone separator of the first order in per group.
3. a kind of large-scale suspension kiln according to claim 1, it is characterised in that the calcination reactor and intermediate separator
Between connected by inverted U pipeline.
4. a kind of large-scale suspension kiln according to claim 1, it is characterised in that the pre- hot cyclone separator, cooling rotation
Level-sensing device is mounted on wind separator, revolution discharge valve is respectively mounted on discharge pipe, pacified on admission line and discharge duct
Dress thermometric, pressure instrumentation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140072.7U CN206177050U (en) | 2016-10-19 | 2016-10-19 | Large -scale suspension kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621140072.7U CN206177050U (en) | 2016-10-19 | 2016-10-19 | Large -scale suspension kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206177050U true CN206177050U (en) | 2017-05-17 |
Family
ID=58680470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621140072.7U Withdrawn - After Issue CN206177050U (en) | 2016-10-19 | 2016-10-19 | Large -scale suspension kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206177050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568331A (en) * | 2016-10-19 | 2017-04-19 | 中冶焦耐(大连)工程技术有限公司 | Large suspension kiln and production process thereof |
-
2016
- 2016-10-19 CN CN201621140072.7U patent/CN206177050U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568331A (en) * | 2016-10-19 | 2017-04-19 | 中冶焦耐(大连)工程技术有限公司 | Large suspension kiln and production process thereof |
| CN106568331B (en) * | 2016-10-19 | 2018-08-21 | 中冶焦耐(大连)工程技术有限公司 | A kind of large size suspension kiln and its production technology |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170517 Effective date of abandoning: 20180821 |