CN203223913U - Anti-blocking sweeping device of coal drop pipe - Google Patents
Anti-blocking sweeping device of coal drop pipe Download PDFInfo
- Publication number
- CN203223913U CN203223913U CN 201320179800 CN201320179800U CN203223913U CN 203223913 U CN203223913 U CN 203223913U CN 201320179800 CN201320179800 CN 201320179800 CN 201320179800 U CN201320179800 U CN 201320179800U CN 203223913 U CN203223913 U CN 203223913U
- Authority
- CN
- China
- Prior art keywords
- coal
- blocking
- coal drop
- pipe
- coal spout
- 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
Landscapes
- Coke Industry (AREA)
Abstract
The utility model discloses an anti-blocking sweeping device of a coal drop pipe. The anti-blocking sweeping device is used for solving the technical problem that the current coal drop pipe is liable to block. The anti-blocking sweeping device comprises a coal drop pipe (1) with a rectangular cross section and an annular sweeping air pipe (2) with a rectangular cross section, wherein the coal drop pipe (1) penetrates through a center hole of the annular sweeping air pipe (2) with a rectangular cross section, and a branch sweeping air pipe (3) is arranged between the side wall of the coal drop pipe (1) and the annular sweeping air pipe (2). The anti-blocking sweeping device disclosed by the utility model is simple in structure, convenient to maintain and capable of completely solving severe blockage occurring below the vertical coal drop segment and the inclined segment interface of the coal drop pipe and improving the working efficiency of a circulating fluidized bed group.
Description
Technical field
The utility model relates to a kind of blow device, particularly a kind of blow device of coal breakage pipeline of CFBB.
Background technology
The coal-feeding mode of existing CFBB institute adapted is most of to be passed through the coal breakage lower flashboard for the one-level Gravimetric Coal Feeders and is directly fed in the stove by coal spout.Coal spout divides two sections, one section vertical section for feeder outlet and coal breakage lower flashboard, and second section is the coal breakage pipeline access burner hearth of an inclination.In actual motion, when going into the big and coal supply particle diameter of stove coal humidity when thin partially, serious clogging occurs through the below of be everlasting coal breakage vertical section and tilting section interface, and then coal supply continues upwards to block up, last whole coal spout and feeder head all stop up, and feeder is forced to stop transport.After coal spout stops up, because it is longer between mediation, coal spout is in the oven dry of coal spread wind and help under the oxygen effect, coal supply in the coal spout burns, coal spout burns red, coal supply in the coal spout forms coke button in combustion process, if dredge, its coke button enters and causes the burner hearth coking in the burner hearth easily.
Summary of the invention
The utility model provides a kind of coal spout anti-blocking blow device, has solved existing coal spout and has occurred the technical problem stopped up easily.
The utility model overcomes the above problems by the following technical programs:
The anti-blocking blow device of a kind of coal spout, comprise that cross section is that rectangular coal spout and rectangular annular sweeping wind pipe coal spout are to pass from the mesopore of rectangular annular sweeping wind pipe, between the sidewall of coal spout and annular sweeping wind pipe, be provided with the branch road sweeping wind pipe.
Angle between the sidewall of branch road sweeping wind pipe and coal spout is 30 degree, is provided with three branch road sweeping wind pipes equally spacedly between the coal spout outside each sidewall of coal spout and this sidewall.
The utility model is simple in structure, and is easy to maintenance, thoroughly solved the serious obstruction that coal spout occurs below coal breakage vertical section and tilting section interface, improved the operating efficiency of Properties of CFB.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The anti-blocking blow device of a kind of coal spout, comprise that cross section is rectangular coal spout 1 and rectangular annular sweeping wind pipe 2, coal spout 1 is to pass from the mesopore of rectangular annular sweeping wind pipe 2, is provided with branch road sweeping wind pipe 3 between the sidewall of coal spout 1 and annular sweeping wind pipe 2.
Angle between the sidewall of branch road sweeping wind pipe 3 and coal spout 1 is 30 degree, is provided with three branch road sweeping wind pipes 3 equally spacedly between the coal spout 1 outside each sidewall of coal spout 1 and this sidewall.
Coal spout of the present utility model tilts this system by installing purging wind additional around the tilting section rectangle coal breakage pipeline below 100 millimeters in section and vertical section interface, and blowing medium is station-service compressed air.The purging wind that installs additional is interior wind cutting, install 2 branch roads up and down on each side additional, 200 millimeters at interval of two branch roads, each branch road divides 12 little branch roads, 3 branch roads in each cross section, each little branch road is 30 ° with the angle of corresponding coal spout wall, whole in wind cutting see to be and be rotated counterclockwise from putting down, and the direction of rotation unanimity of two branch roads up and down.Two branch road design annular mothers manage up and down, the female pipe of two branch roads annular finally converges and to the female pipe of air feed, on the main line of air feed magnetic valve is housed, and its control loop inserts master control system, undertaken regularly inwall being purged all around by default, purge time can be determined according to operation coal experience.The caliber of each branch road is Φ 20 millimeters * 2, and material is ordinary carbon steel, and welding manner is all adopted in the interface section.
Claims (2)
1. anti-blocking blow device of coal spout, comprise that cross section is rectangular coal spout (1) and rectangular annular sweeping wind pipe (2), it is characterized in that, coal spout (1) is to pass from the mesopore of rectangular annular sweeping wind pipe (2), is provided with branch road sweeping wind pipe (3) between the sidewall of coal spout (1) and annular sweeping wind pipe (2).
2. the anti-blocking blow device of a kind of coal spout according to claim 1, it is characterized in that, angle between the sidewall of branch road sweeping wind pipe (3) and coal spout (1) is 30 degree, is provided with three branch road sweeping wind pipes (3) equally spacedly between the coal spout (1) outside each sidewall of coal spout (1) and this sidewall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320179800 CN203223913U (en) | 2013-04-11 | 2013-04-11 | Anti-blocking sweeping device of coal drop pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320179800 CN203223913U (en) | 2013-04-11 | 2013-04-11 | Anti-blocking sweeping device of coal drop pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203223913U true CN203223913U (en) | 2013-10-02 |
Family
ID=49250916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320179800 Expired - Lifetime CN203223913U (en) | 2013-04-11 | 2013-04-11 | Anti-blocking sweeping device of coal drop pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203223913U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728530A (en) * | 2021-02-07 | 2021-04-30 | 西安交通大学 | Anti-blocking system for coal dropping pipe of circulating fluidized bed boiler |
-
2013
- 2013-04-11 CN CN 201320179800 patent/CN203223913U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728530A (en) * | 2021-02-07 | 2021-04-30 | 西安交通大学 | Anti-blocking system for coal dropping pipe of circulating fluidized bed boiler |
| CN112728530B (en) * | 2021-02-07 | 2022-03-01 | 西安交通大学 | Anti-blocking system for coal dropping pipe of circulating fluidized bed boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101475814B (en) | Multi-directional air distribution fixed bed biomass gasification stoves | |
| CN203857473U (en) | Ash discharge delivery system of coal economizer | |
| CN103395745B (en) | Prevent hydrogen chloride gas from crossing the interlocking signal system and method for chlorine | |
| CN208799963U (en) | A kind of multi-point injection anti-settling dry desulfurizing tower | |
| CN203223913U (en) | Anti-blocking sweeping device of coal drop pipe | |
| CN105347040A (en) | Pressure feed type high-pressure dense-phase pneumatic conveying device and pneumatic conveying method | |
| CN204097418U (en) | A kind of vapourizing furnace feed system | |
| CN103912871B (en) | For the seal valve revert system of burning chemistry chains system | |
| CN202687982U (en) | Gas distribution device for silane fluidized beds | |
| CN101776261B (en) | Granulation sowing device | |
| CN218902164U (en) | Material conveying structure for preventing material piling of material conveying pipeline of V-shaped powder selecting machine | |
| CN205689774U (en) | A kind of online cleaning type butterfly valve for blast furnace gas pipeline | |
| CN204739578U (en) | Adjustable fluidized bed boiler of combustion efficiency | |
| CN105114946B (en) | A kind of fluid bed mixing charging (feeding) equipment of coal and biomass | |
| CN105333420B (en) | Biological particle gasification burner | |
| CN205191053U (en) | A spherical pipe fitting for strength ash removal system pipeline | |
| CN204372915U (en) | Fluidized-bed combustion boiler open type gas spiral coal supply system | |
| CN201172649Y (en) | Adjustable coal distributing device for gas stove | |
| CN203116049U (en) | Soot blowing system of boiler hot air box | |
| CN203699445U (en) | Material uniformizing device with airflow for bulk grain entering silo | |
| CN203037086U (en) | Closed cell perlite stock bin device | |
| CN201344543Y (en) | Chain grate for air scoop type uniform air distribution in intermediate air chamber of large air bin | |
| CN207778428U (en) | A kind of desulfuration in furnace device of optimization material returning device operation | |
| CN204063023U (en) | Air-cushion type coal spread wind device | |
| CN204693395U (en) | A kind of Anti-blockage fluidized-bed combustion boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131002 |