CN209084797U - A kind of dry deslagging protection system - Google Patents
A kind of dry deslagging protection system Download PDFInfo
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- CN209084797U CN209084797U CN201821790020.3U CN201821790020U CN209084797U CN 209084797 U CN209084797 U CN 209084797U CN 201821790020 U CN201821790020 U CN 201821790020U CN 209084797 U CN209084797 U CN 209084797U
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- dry
- slag
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- pressure air
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Abstract
The utility model discloses a kind of dry deslagginves to protect system, including burner hearth, slag cooling bucket, dry-type slag extractor, slag storehouse, negative-pressure air fan, deduster and flapper；The bottom of burner hearth is provided with dry bottom hopper, the entrance of slag cooling bucket is connected with the outlet of dry bottom hopper, the outlet of slag cooling bucket is connected with the entrance of dry-type slag extractor, the outlet of dry-type slag extractor is connected with the cinder notch that enters in slag storehouse, the slag charge of deduster filtering is back in dry-type slag extractor through flapper, the entrance of negative-pressure air fan is connected through deduster with dry-type slag extractor, cooling air flap and head air door are provided on dry-type slag extractor, the outlet of negative-pressure air fan is connected with burner hearth, its interface is located at coal burner lower zone, the system can be when slag cooling bucket be blocked because of lime-ash, cooling wind regime is provided to dry-type slag extractor, so that lime-ash cools off, protect dry-type slag extractor safety.
Description
Technical field
The utility model belongs to field of thermal power, is related to a kind of dry deslagging protection system.
Background technique
To save water, the coal unit using dry dreg removing system increases.To save fuel cost, coal unit is matched
Coal, which is mixed, burns economic coal, often increases the quantity of slag, and part power plant occurs in overdrying dreg removing system forced shutdown maintenance process, because
Dry bottom hopper, slag cooling bucket accumulate lime-ash, block the lost pressure cooling channel of dry slag-removing machine.After dry-type slag extractor troubleshooting,
Restore the dry-type slag extractor process that puts into operation, because dry-type slag extractor lacks cooling wind regime, high-temperature ash leads to dry type after entering slag drying machine
Slag extractor temperature drift, or even blowing out is needed to handle, it is therefore desirable to a kind of dry-type slag extractor protection system is developed, for cold
When slag bucket is blocked because of lime-ash, cooling wind regime is provided to dry-type slag extractor, cools off lime-ash, so that dry-type slag extractor be protected to fill
It sets.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of dry deslagging protection system,
The system can provide cooling wind regime to dry-type slag extractor when slag cooling bucket is blocked because of lime-ash, so that lime-ash cools off, protection
Dry-type slag extractor safety.
In order to achieve the above objectives, dry deslagging protection system described in the utility model includes burner hearth, slag cooling bucket, dried slag removing
Machine, slag storehouse, negative-pressure air fan, deduster and flapper；
The bottom of burner hearth is provided with dry bottom hopper, and the entrance of slag cooling bucket is connected with the outlet of dry bottom hopper, the outlet of slag cooling bucket
It is connected with the entrance of dry-type slag extractor, the outlet of dry-type slag extractor is connected with the cinder notch that enters in slag storehouse, the entrance of negative-pressure air fan
It is connected through deduster with dry-type slag extractor, cooling air flap and head air door is provided on dry-type slag extractor, negative-pressure air fan goes out
Mouth is connected with burner hearth.
Negative-pressure air fan entrance controllable register is provided between the entrance and deduster of negative-pressure air fan.
The outlet of negative-pressure air fan is connected with burner hearth by negative-pressure air fan outlet conduits.
Negative-pressure air fan outlet damper is provided on negative-pressure air fan outlet conduits.
Cooling air flap and head air door are separately positioned on the side of dry-type slag extractor and its side of outlet.The utility model
It has the advantages that
Dry deslagging protection system described in the utility model is when specific operation, when slag cooling bucket because slag charge blocks, negative pressure wind
Machine sucks cold air in dry-type slag extractor through cooling air flap and head air door, to reduce the temperature in dry-type slag extractor, makes to fall
The slag for entering dry-type slag extractor is normally cooled down, and until the lime-ash discharge safely accumulated in furnace, is avoided boiler shutdown, is guaranteed dry
Formula slag extractor safety, while the slag charge drawn is after deduster filters, through flapper back in dry-type slag extractor, absorption it is cold
Air enters in burner hearth after deduster filters, convenient and simple for operation, and practicability is extremely strong.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 it is burner hearth, 2 be dry bottom hopper, 3 be slag cooling bucket, 4 be dry-type slag extractor, 5 be cooling air flap, 6 is head wind
Door, 7 be negative-pressure air fan, 8 be negative-pressure air fan outlet conduits, 9 be negative-pressure air fan entrance controllable register, 10 be negative-pressure air fan exit catch
Plate, 11 be deduster, 12 be flapper, 13 be slag storehouse, 14 be coal burner.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, dry deslagging protection system described in the utility model include burner hearth 1, slag cooling bucket 3, dry-type slag extractor 4,
Slag storehouse 13, negative-pressure air fan 7, deduster 11 and flapper 12；The bottom of burner hearth 1 is provided with dry bottom hopper 2, the entrance of slag cooling bucket 3 with
The outlet of dry bottom hopper 2 is connected, and the outlet of slag cooling bucket 3 is connected with the entrance of dry-type slag extractor 4, the outlet of dry-type slag extractor 4
It is connected with the cinder notch that enters in slag storehouse 13, the entrance of negative-pressure air fan 7 is connected through deduster 11 with dry-type slag extractor 4, deduster 11
The slag charge of filtering is back in dry-type slag extractor 4 through flapper 12, and cooling air flap 5 and head wind are provided on dry-type slag extractor 4
Door 6, the outlet of negative-pressure air fan 7 is connected with burner hearth 1, and interface is located at 14 lower zone of coal burner.
Negative-pressure air fan entrance controllable register 9 is provided between the entrance and deduster 11 of negative-pressure air fan 7；Negative-pressure air fan 7
Outlet is connected with burner hearth 1 by negative-pressure air fan outlet conduits 8, and interface is located at 14 lower zone of coal burner；Negative pressure wind
Negative-pressure air fan outlet damper 10 is provided on machine outlet conduits 8；Cooling air flap 5 and head air door 6 are separately positioned on dried slag removing
The side of machine 4 and the side of outlet.
The specific operation process of the utility model are as follows:
After slag cooling bucket 3 is blocked because of slag charge, negative-pressure air fan entrance controllable register 9 is closed, by negative-pressure air fan outlet damper
10 close, and restart negative-pressure air fan 7, open negative-pressure air fan outlet damper 10 after negative-pressure air fan 7 starts 10s, open negative pressure wind
Machine entrance controllable register 9 adjusts air quantity, and cold air is sucked dry-type slag extractor through cooling air flap 5 and head air door 6 by negative-pressure air fan 7
In 4, to reduce the temperature in dry-type slag extractor 4, guarantee 4 safety of dry-type slag extractor, cold air carries slag charge through 11 mistake of deduster
After filter, through flapper 12 back to the cold air that in dry-type slag extractor 4, negative-pressure air fan 7 is sucked through negative-pressure air fan outlet conduits 8 into
Enter into burner hearth 1, interface is located at 14 lower zone of coal burner, and the slag charge that deduster 11 filters is back to through flapper 12
In dry-type slag extractor 4, and enter eventually into slag storehouse 13.
After the lime-ash blocked in furnace is dredged, after dry-type slag extractor 4 establishes cooling air quantity, then system switching is carried out, born
Pressure fan 7 can stop working, and close negative-pressure air fan entrance controllable register 9 and negative-pressure air fan outlet damper 10.
Claims (5)
1. a kind of dry deslagging protects system, which is characterized in that including burner hearth (1), slag cooling bucket (3), dry-type slag extractor (4), slag storehouse
(13), negative-pressure air fan (7), deduster (11) and flapper (12)；
The bottom of burner hearth (1) is provided with dry bottom hopper (2), and the entrance of slag cooling bucket (3) is connected with the outlet of dry bottom hopper (2), cold slag
The outlet of bucket (3) is connected with the entrance of dry-type slag extractor (4), and the outlet of dry-type slag extractor (4) enters cinder notch with slag storehouse (13)
It is connected, the entrance of negative-pressure air fan (7) is connected through deduster (11) with dry-type slag extractor (4), and dry-type slag extractor is arranged on (4)
There are cooling air flap (5) and head air door (6), the outlet of negative-pressure air fan (7) is connected with burner hearth (1).
2. dry deslagging according to claim 1 protects system, which is characterized in that the entrance and deduster of negative-pressure air fan (7)
(11) negative-pressure air fan entrance controllable register (9) is provided between.
3. dry deslagging according to claim 2 protects system, which is characterized in that the outlet and burner hearth (1) of negative-pressure air fan (7)
It is connected by negative-pressure air fan outlet conduits (8).
4. dry deslagging according to claim 3 protects system, which is characterized in that negative-pressure air fan outlet conduits are arranged on (8)
There are negative-pressure air fan outlet damper (10).
5. dry deslagging according to claim 1 protects system, which is characterized in that cooling air flap (5) and head air door (6) point
It She Zhi not be in the side of dry-type slag extractor (4) and its side of outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821790020.3U CN209084797U (en) | 2018-10-31 | 2018-10-31 | A kind of dry deslagging protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821790020.3U CN209084797U (en) | 2018-10-31 | 2018-10-31 | A kind of dry deslagging protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084797U true CN209084797U (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821790020.3U Active CN209084797U (en) | 2018-10-31 | 2018-10-31 | A kind of dry deslagging protection system |
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| Country | Link |
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| CN (1) | CN209084797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373339A (en) * | 2018-10-31 | 2019-02-22 | 西安热工研究院有限公司 | A kind of dry deslagging protection system and its working method |
-
2018
- 2018-10-31 CN CN201821790020.3U patent/CN209084797U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373339A (en) * | 2018-10-31 | 2019-02-22 | 西安热工研究院有限公司 | A kind of dry deslagging protection system and its working method |
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