CN204141572U - Sow formula coal feeder - Google Patents
Sow formula coal feeder Download PDFInfo
- Publication number
- CN204141572U CN204141572U CN201420592263.1U CN201420592263U CN204141572U CN 204141572 U CN204141572 U CN 204141572U CN 201420592263 U CN201420592263 U CN 201420592263U CN 204141572 U CN204141572 U CN 204141572U
- Authority
- CN
- China
- Prior art keywords
- coal
- wind
- coal spout
- air
- sows
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 60
- 238000009331 sowing Methods 0.000 claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims abstract description 10
- 238000007084 catalytic combustion reaction Methods 0.000 abstract description 4
- 238000004939 coking Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Abstract
The utility model discloses one and sow formula coal feeder.Comprise combustion chamber furnace wall and coal spout, coal spout outside is provided with sows wind apparatus, this is sowed wind apparatus and comprises arc plate, side seal board, make between arc plate and coal spout outer wall, to form the uncovered circular arc interlayer air duct in lower end, coal spout upper end is provided with sows wind inlet, this is sowed wind inlet and is connected with circular arc interlayer air duct, sows wind inlet and is connected with boiler First air airduct by the wind air compartment of sowing being arranged at coal spout outside.The utility model sows wind apparatus by increasing on coal spout, after fire coal enters into combustion chamber by coal spout, sowing under wind action, fire coal moves forward certain distance, and direct catalytic combustion room furnace wall, avoid coal-fired directly catalytic combustion room furnace wall and the generation of the coking phenomenon that occurs to bond.
Description
Technical field
The utility model relates to a kind of coal supply apparatus for boiler, particularly relates to a kind of formula of sowing coal feeder of boiler, belongs to Sector of Cfb Boilers.
Background technology
Coal Feeding in Circulating Fluidized Bed Furnace is adopt stokehold coal-feeding mode mostly, and fire coal is sent in coal spout by feeder, is entered in combustion chamber under gravity by coal spout.Because combustion chamber furnace wall is incline structure, after fire coal enters combustion chamber from coal spout, first hot combustion chamber furnace wall is touched, form a Ge Fumei district in coal feeding hole bottom, under the effect of high temperature, coal-fired (especially volatile matter be greater than 20% fire coal) easily sticks together on the furnace wall of coal feeding hole bottom, cause coking, with the passage of time adhesion progressively increases, and by affecting the fluidisation of material in combustion chamber, forces shutdown of boiler.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of formula of sowing coal feeder preventing coal spout bottom furnace wall from occurring coal-fired adhesion coking phenomenon.
The technical scheme that the utility model is adopted for achieving the above object is:
One sows formula coal feeder, comprise combustion chamber furnace wall and coal spout, it is characterized in that: described coal spout outside is provided with sows wind apparatus, this is sowed wind apparatus and comprises arc plate, side seal board and sow wind air compartment, arc plate is connected with side seal board, the both sides of arc plate are connected with the outer wall of coal spout by side seal board, make between arc plate and coal spout outer wall, to form the uncovered circular arc interlayer air duct in lower end, coal spout upper end is provided with sows wind inlet, this is sowed wind inlet and is connected with circular arc interlayer air duct, sow wind inlet to be connected with boiler First air airduct, described arc plate is positioned at combustion chamber stove wall surface to its lower end of downward-extension.
In order to easy to connect, wind inlet of sowing described in the utility model is connected by sowing wind air compartment with boiler First air airduct, described wind air compartment of sowing is arranged at coal spout outside, the one end of sowing wind air compartment is connected with the wind inlet of sowing that described coal spout upper end is arranged, the other end is provided with air compartment air inlet, and air compartment air inlet is connected with boiler First air airduct.
The good effect that the utility model compared with prior art has is:
Wind apparatus is sowed by increasing in coal spout outside, after fire coal enters into combustion chamber by coal spout, sowing under wind action, fire coal moves forward certain distance, and direct catalytic combustion room furnace wall, avoid coal-fired directly catalytic combustion room furnace wall and the generation of the coking phenomenon that occurs to bond.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of prior art coal feeder.
Fig. 2 is the schematic diagram that the utility model sows formula coal feeder.
Fig. 3 is the A-A cross-sectional schematic in Fig. 2.
Fig. 4 is the B-B cross-sectional schematic in Fig. 2.
In figure: the furnace wall of 1-combustion chamber, 2-coal spout, the import of 3-coal, 4-coal export, 5-sows wind air compartment, 6-air compartment air inlet, and 7-sows wind inlet, and 8-sows wind outlet, 9-arc plate, 10-side seal board, 11-circular arc interlayer air duct.
Detailed description of the invention
Also by reference to the accompanying drawings the utility model is described further below by non-limiting embodiment.
As shown in Figures 2 to 4, one sows formula coal feeder, comprise combustion chamber furnace wall 1 and coal spout 2, outside coal spout 2, and be positioned at coal spout 2 upper end and be provided with and sow wind apparatus, this is sowed wind apparatus and comprises arc plate 9, side seal board 10, arc plate 9 is connected by side seal board 10 with the outer wall of coal spout 2, side seal board 10 is connected with the outer wall of coal spout 2, make between arc plate 9 and coal spout 2 outer wall, to form the uncovered circular arc interlayer air duct 11 in lower end, circular arc interlayer air duct 11 upper end is provided with sows wind inlet 7, this is sowed wind inlet 7 and is connected with circular arc interlayer air duct 11, sow wind inlet 7 to be connected by sowing wind air compartment 5 with boiler First air airduct, described wind air compartment 5 of sowing is arranged at coal spout 2 outside, the one end of sowing wind air compartment 5 is connected with the wind inlet 7 of sowing that described coal spout 2 upper end is arranged, the other end is provided with air compartment air inlet 6, air compartment air inlet 6 is connected with boiler First air airduct.It is surperficial within the walls that described arc plate 9 is positioned at combustion chamber stove to its lower end of downward-extension.
Cited above embodiment is only for understanding the utility model; it is not the restriction to the technical scheme described by the utility model; the those of ordinary skill of related fields; on the basis of technical scheme described in claim; can also make multiple change or distortion, all equivalent changes or distortion all should be encompassed within claims of the present utility model.
Claims (2)
1. sow formula coal feeder for one kind, comprise combustion chamber furnace wall and coal spout, it is characterized in that: described coal spout outside is provided with sows wind apparatus, this is sowed wind apparatus and comprises arc plate, side seal board and sow wind air compartment, arc plate is connected with side seal board, the both sides of arc plate are connected with the outer wall of coal spout by side seal board, make between arc plate and coal spout outer wall, to form the uncovered circular arc interlayer air duct in lower end, coal spout upper end is provided with sows wind inlet, this is sowed wind inlet and is connected with circular arc interlayer air duct, sow wind inlet to be connected with boiler First air airduct, it is surperficial within the walls that described arc plate is positioned at combustion chamber stove to its lower end of downward-extension.
2. according to claim 1ly sow formula coal feeder, it is characterized in that: described wind inlet of sowing is connected by sowing wind air compartment with boiler First air airduct, described wind air compartment of sowing is arranged at coal spout outside, the one end of sowing wind air compartment is connected with the wind inlet of sowing that described coal spout upper end is arranged, the other end is provided with air compartment air inlet, and air compartment air inlet is connected with boiler First air airduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592263.1U CN204141572U (en) | 2014-10-14 | 2014-10-14 | Sow formula coal feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420592263.1U CN204141572U (en) | 2014-10-14 | 2014-10-14 | Sow formula coal feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204141572U true CN204141572U (en) | 2015-02-04 |
Family
ID=52418255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420592263.1U Expired - Lifetime CN204141572U (en) | 2014-10-14 | 2014-10-14 | Sow formula coal feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204141572U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266181A (en) * | 2014-10-14 | 2015-01-07 | 济南锅炉集团有限公司 | Scattering type coal supply device |
-
2014
- 2014-10-14 CN CN201420592263.1U patent/CN204141572U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266181A (en) * | 2014-10-14 | 2015-01-07 | 济南锅炉集团有限公司 | Scattering type coal supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |