CN207378809U - 300MW circulating fluidized bed boiler center feeders prevent the knife system that floats - Google Patents
300MW circulating fluidized bed boiler center feeders prevent the knife system that floats Download PDFInfo
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- CN207378809U CN207378809U CN201721480404.0U CN201721480404U CN207378809U CN 207378809 U CN207378809 U CN 207378809U CN 201721480404 U CN201721480404 U CN 201721480404U CN 207378809 U CN207378809 U CN 207378809U
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- coal
- plough
- unloading arm
- coal column
- fixing piece
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Abstract
The utility model is related to a kind of 300MW circulating fluidized bed boiler center feeders to prevent the knife system that floats.The utility model composition includes：Unloading arm（4）, cylinder（12）, the arc-shaped outer surface of unloading arm and one group of coal plough（14）Welding, the lower end of cylinder have a circle groove（13）, the end of unloading arm is located at the inside of groove, and coal plough includes fixing piece（15）, plough coal column（16）Lower end pass through fixing piece circular hole, the upper end for ploughing coal column is cased with adjusting nut successively（17）And protective cover（18）, plough coal column has an external screw thread, all has the internal thread to match with ploughing the external screw thread of coal column in the circular hole of fixing piece and on adjusting nut and protective cover.It overcomes in the prior art due to not blowing the coal-fired of blade bottom all off in unloading arm base plane rotary course, bottom fire coal is compacted by unloading arm rotation, is just present with unloading arm bending, knife phenomenon of floaing.
Description
Technical field：
The utility model is related to a kind of 300MW circulating fluidized bed boiler center feeders to prevent the knife system that floats.
Background technology：
Current center feeder all includes unloading arm, interior cone, fixed cross beam, discharging bottom plate, transmission mechanism, center
Discharge port, electric control system, also have lubricating system composition, due in unloading arm base plane rotary course by blade bottom
Coal-fired all to blow off, unloading arm rotation is compacted bottom is coal-fired, as the continuation bottom fire coal of rotation is rolled more real, is treated
During beyond unloading arm strength degree, just it is present with unloading arm bending, knife phenomenon of floaing.
Utility model content：
The purpose of the utility model is to overcome the coal-fired compactings in existing center feeder bottom, discharging brachiocylloosis occur, float knife
The problem of, it provides that one kind prevents discharging brachiocylloosis, float knife, while prevents the coal-fired 300MW circulating fluidized bed boiler center being compacted
Batcher prevents the knife system that floats.
Above-mentioned purpose is realized by following technical scheme：
A kind of 300MW circulating fluidized bed boiler center feeder prevents the knife system that floats, and composition includes：Unloading arm, cylinder, institute
The arc-shaped outer surface for the unloading arm stated is welded with one group of coal plough, and the lower end of the cylinder has a circle groove, described
The end of unloading arm is located at the inside of the groove, and the coal plough includes fixing piece, ploughs the lower end of coal column described in
Fixing piece circular hole, the upper end of the plough coal column is cased with adjusting nut and protective cover successively, and the plough coal column has outer
Screw thread, all has and the plough coal column in the circular hole of the fixing piece and on the adjusting nut and the protective cover
The internal thread that matches of external screw thread.
The 300MW circulating fluidized bed boiler center feeders prevent the knife system that floats, the lower end of the plough coal column and institute
The distance between discharging bottom plate of cylinder lower end stated is 3-8mm.
Advantageous effect：
1. the utility model sets a circle groove in cylinder lower end, the end of unloading arm is located at the inside of groove, can be to prevent
Only unloading arm occur floaing knife the phenomenon that, ensure operation safety.
The utility model sets coal plough, can effectively prevent and unloading arm fire coal plate is caused in unloading arm rotary course
Knot plays the role of the hardened coal of loose unloading arm bottom.
The adjusting nut that the utility model is set can adjust bottom plate with ploughing the distance between coal column, can be according to hardened
Situation come adjust height.
The utility model sets protective cover, can effectively prevent plough coal column abrasion, can protect the screw thread of plough coal column not
It is worn.
Description of the drawings：
Attached drawing 1 is the structure diagram of the utility model plough coal column；
Attached drawing 2 is the top view of the utility model；
Attached drawing 3 is the front view of the utility model；
Attached drawing 4 is the enlarged drawing in A portions in attached drawing 3；
In figure：1st, internal vertebral body；2nd, fixed cross beam；3rd, discharging bottom plate；4th, unloading arm；5th, transmission mechanism；6th, driving gear；
7th, retarder；8th, motor；9th, blanking port；10th, Circular Plate；11st, bearing；12nd, cylinder；13rd, groove；14th, coal plough；15th, it is fixed
Part；16th, coal column is ploughed；17th, adjusting nut；18th, protective cover.
Specific embodiment：
Embodiment 1：
A kind of 300MW circulating fluidized bed boiler center feeder prevents the knife system that floats, and composition includes：Unloading arm 4, cylinder
12, the arc-shaped outer surface of the unloading arm is welded with one group of coal plough 14, can ensure the steady of connection using welding form
Qualitative, the lower end of the cylinder has a circle groove 13, and the end of the unloading arm is located at the inside of the groove, can
With prevent unloading arm occur floaing knife the phenomenon that, the coal plough includes fixing piece 15, and the lower end of plough coal column 16 is through described
The circular hole of fixing piece, the upper end of the plough coal column are cased with adjusting nut 17 and protective cover 18 successively, and the plough coal column has
External screw thread, all has and the plough coal in the circular hole of the fixing piece and on the adjusting nut and the protective cover
The internal thread that the external screw thread of column matches.
The distance between the lower end of the plough coal column and the discharging bottom plate 3 of cylinder lower end are 3-8mm, plough coal column
The distance between discharging bottom plate can be adjusted according to the thickness of the coal on discharging bottom plate.
The agent structure of center feeder is：
Center feeder includes cylinder, and the inner barrel is connected with internal vertebral body 1 by fixed cross beam 2, described
Cylinder lower end sets discharging bottom plate, and the discharging bottom plate lower end is connected with Circular Plate 10 by bearing 11, the discharging bottom
Plate upper end is fixedly connected with unloading arm, and the discharging bottom plate lower part left and right ends set transmission mechanism 5, the transmission mechanism
Including motor 8, retarder 7, driving gear 6 is set, and driving gear on the outside of the Circular Plate with nibbling on the transmission mechanism
It closes, Circular Plate lower end is bolted to connection with blanking port 9.
Operation principle：
Coal is placed between cylinder and internal vertebral body, starts motor, by retarder driving gear is driven to rotate, driving tooth
Wheel is meshed with Circular Plate, and Circular Plate rotates therewith, so as to which unloading arm be driven to rotate so that coal is dropped out by blanking port.
Claims (2)
1. a kind of 300MW circulating fluidized bed boiler center feeder prevents the knife system that floats, composition includes：Unloading arm, cylinder, it is special
Sign is：The arc-shaped outer surface of the unloading arm is welded with one group of coal plough, and the lower end of the cylinder has a circle groove,
The end of the unloading arm is located at the inside of the groove, and the coal plough includes fixing piece, and the lower end for ploughing coal column is worn
The circular hole of the fixing piece is crossed, the upper end of the plough coal column is cased with adjusting nut and protective cover, the plough coal column successively
With external screw thread, all have in the circular hole of the fixing piece and on the adjusting nut and the protective cover with it is described
The internal thread that the external screw thread of plough coal column matches.
2. 300MW circulating fluidized bed boiler center feeder according to claim 1 prevents the knife system that floats, it is characterized in that：Institute
The distance between the lower end for the plough coal column stated and the discharging bottom plate of cylinder lower end are 3-8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480404.0U CN207378809U (en) | 2017-11-08 | 2017-11-08 | 300MW circulating fluidized bed boiler center feeders prevent the knife system that floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480404.0U CN207378809U (en) | 2017-11-08 | 2017-11-08 | 300MW circulating fluidized bed boiler center feeders prevent the knife system that floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207378809U true CN207378809U (en) | 2018-05-18 |
Family
ID=62334713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721480404.0U Active CN207378809U (en) | 2017-11-08 | 2017-11-08 | 300MW circulating fluidized bed boiler center feeders prevent the knife system that floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207378809U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827171A (en) * | 2019-03-15 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | A kind of petroleum coke combustion desulfurization fluidized-bed combustion boiler |
-
2017
- 2017-11-08 CN CN201721480404.0U patent/CN207378809U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827171A (en) * | 2019-03-15 | 2019-05-31 | 镇江东亚碳素焦化有限公司 | A kind of petroleum coke combustion desulfurization fluidized-bed combustion boiler |
| CN109827171B (en) * | 2019-03-15 | 2024-03-08 | 镇江东亚碳素焦化有限公司 | Fluidized bed boiler for petroleum coke combustion desulfurization |
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