CN202321536U - Self-sealing shaft-free spiral conveyor - Google Patents
Self-sealing shaft-free spiral conveyor Download PDFInfo
- Publication number
- CN202321536U CN202321536U CN2011204229280U CN201120422928U CN202321536U CN 202321536 U CN202321536 U CN 202321536U CN 2011204229280 U CN2011204229280 U CN 2011204229280U CN 201120422928 U CN201120422928 U CN 201120422928U CN 202321536 U CN202321536 U CN 202321536U
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- self
- seal device
- coal
- cooling air
- shaft
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Abstract
The utility model discloses a self-sealing shaft-free spiral conveyor and belongs to spiral conveyors. A shaft-free spiral blade of the conveyor is positioned in a conveying pipe; one end of the shaft-free spiral blade is welded on a front shaft of a driving end; a bearing chamber, a speed reducer and a driving motor are sequentially connected to one end of the conveying pipe; the bearing chamber and the speed reducer are connected into a whole; an output shaft of the speed reducer is connected with a bearing in the bearing chamber; a front shaft at the driving end is connected with an output shaft of the speed reducer; the other end of the conveying pipe is connected with a self-sealing device; one end of the self-sealing device extends into a hearth and the other end of the self-sealing device is connected with the surrounding cooling wind and coal spreading air; and the upper end surface horizontally arranged on the conveying pipe is connected with a feed inlet. The self-sealing shaft-free spiral conveyor has the advantages that: materials are directly fed into the hearth, flue gas inside a furnace is prevented from entering the outside, sealing property is ensured, coal is ensured not to accumulate at the bottom, and co-combustion of a large amount of middlings on a circulating fluidized bed boiler is realized; and the self-sealing shaft-free spiral conveyor can convey the coal, such as the middlings and coal slime, which are high in water content, fine in particles and high in viscosity, and is simple in structure and convenient to operate.
Description
Technical field
The utility model relates to a kind of conveyor screw, particularly a kind of self-sealed Shaftless screw conveyor.
Background technology
At present, the equipment of state's internal circulating fluidized-bed boiler coal supply mainly contains belt coal-feeding machine and scraper plate feeder, also has the little unit of part to use screw conveyor shaft is arranged, but all have sticking axle, obstruction and the big problem of maintenance.Existing Shaftless screw conveyor comprises: drive motor, reductor, drive end front bearing, advance material inlet, Shaftless spiral blade, rear bearing, discharging opening, conveying pipeline, drive end front axle, fixed end rear axle; Shaftless spiral blade is positioned at conveying pipeline; End at conveying pipeline is connected with drive end front bearing, reductor, drive motor in turn; The drive end front axle passes the endoporus through drive end front bearing and reductor; The other end of conveying pipeline connects the fixed end rear bearing, and the fixed end rear axle links to each other with the fixed end rear bearing.The two ends of Shaftless spiral blade are welded drive end front axle and fixed end rear axle respectively.Connect the inlet point lower surface in the upper surface of conveying pipeline and connect discharging opening.No center shaft, two ends Fixed Design in the middle of existing Shaftless screw conveyor blade adopts, discharging opening can not directly link to each other with boiler in lower housing portion.Existing Shaftless screw conveyor is prone to the long-pending coal in bottom, the stuck problem of spiral when washing the higher faulty coal of water ratio such as middle coal, coal slime in conveying; During particularly with the boiler hearth of circulating fluidized bed direct connection, high temperature deformation, the hot flue gas also relevant solution of problem such as leak outside.The domestic Shaftless screw conveyor that directly is used for defeated coal is also few, washes also not having of high-moisture faulty coals such as middle coal, coal slime especially for directly carrying before the circulating fluid bed boiler.
The utility model content
The purpose of the utility model is that a kind of self-sealed Shaftless screw conveyor will be provided, and can directly be connected with boiler hearth of circulating fluidized bed, realizes directly being washed middle coal, and has solved sticking axle, obstruction and the big problem of maintenance that has screw conveyor shaft to exist.
The purpose of the utility model is achieved in that this conveyer comprises: drive motor, reductor, bearing chamber, advance material inlet, Shaftless spiral blade, conveying pipeline, drive end front axle and self-seal device; Shaftless spiral blade is positioned at conveying pipeline, and an end of Shaftless spiral blade is welded on the drive end front axle; End at conveying pipeline is connected with bearing chamber, reductor and drive motor in turn, and bearing chamber and reductor connect as one, and the output shaft of reductor is outer to be connected with the interior bearing of bearing chamber; The drive end front axle is connected with the output shaft of reductor, and the other end of conveying pipeline connects self-seal device, and self-seal device one end puts in burner hearth, and the other end connects circumference cooling air and coal spread wind, puts down in the upper surface of conveying pipeline to connect inlet point.
Described self-seal device comprises: self-seal device circumference cooling air interface, self-seal device coal spread wind interface, self sealss interface disc, coal spread wind passage and cooling air passage; Self-seal device is a tubular; Be double-wall structure; In the double wall tube-shaped structure, be divided into up and down two independently passages, last autonomous channel is the cooling air passage, and following autonomous channel is the coal spread wind passage; The self sealss interface disc is positioned at an end of self-seal device, is connected with self-seal device coal spread wind interface and self-seal device circumference cooling air interface respectively in the top and bottom of the outer wall of self sealss interface disc; Coal spread wind passage and cooling air passage be connected with self-seal device coal spread wind interface 7 respectively and communicate with self-seal device circumference cooling air interface.
Beneficial effect; Owing to adopted such scheme, conveyer to adopt the Shaftless spiral blade of dross coal, its feed end links to each other with actuating device; Discharge end is equipped with self-seal device; Self-seal device is the fluid origin annular arrangement housing of heat resisting steel, arranges circumference cooling air passage and coal spread wind passage, and wind regime is all taken from cold wind one time; Shaftless spiral blade is piled up after coal is pushed into this position naturally, forms the sealing coal column, has stopped that inner flue gas of the stove leaks outside from coal filling hole.Circumference cooling wind action is the cooling self-seal device, and it is to guarantee that boiler coal feeding is even that coal spread wind mainly acts on.
Solution has sticking axle, obstruction and the big problem of maintenance of screw conveyor shaft existence, has reached the purpose of the utility model.
Advantage: this conveyer is directly sent material to burner hearth, and stops that inner flue gas of the stove scurries outward, has guaranteed leak tightness, guarantees the long-pending coal in bottom, and coal is mixed burning in a large number in realizing washing on CFBB; This conveyer can be carried high-moisture, thin, the tough coals of particle such as washing middle coal, coal slime, and is simple in structure, easy to operate.
Description of drawings
Fig. 1 is the constructional drawing of the utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional structure chart.
Fig. 3 is the sectional structure chart of self-seal device.
Among the figure, 1, drive motor; 2, reductor; 3, drive end front bearing; 4, advance material inlet; 5, Shaftless spiral blade; 6, self-seal device circumference cooling air interface; 7, self-seal device coal spread wind interface; 8, conveying pipeline; 9, drive end front axle; 10, self-seal device; 11, self sealss interface disc; 12, coal spread wind passage; 13, cooling air passage.
The specific embodiment
Embodiment 1: this conveyer comprises: drive motor 1, reductor 2, bearing chamber 3, advance material inlet 4, Shaftless spiral blade 5, conveying pipeline 8, drive end front axle 9 and self-seal device 10; Shaftless spiral blade 5 is positioned at conveying pipeline 8, and an end of Shaftless spiral blade 5 is welded on the drive end front axle 9; End at conveying pipeline 8 is connected with bearing chamber 3, reductor 2 and drive motor 1 in turn, and bearing chamber 3 connects as one with reductor 2, and the output shaft of reductor 2 is outer to be connected with bearing chamber 3 interior bearings; Drive end front axle 9 is connected with the output shaft of reductor 2, and the other end of conveying pipeline 8 connects self-seal device 10, and self-seal device 10 1 ends put in burner hearth, and the other end connects circumference cooling air 6 and coal spread wind 7, puts down in the upper surface of conveying pipeline 8 to connect inlet point 4.
Described self-seal device 10 comprises: self-seal device circumference cooling air interface 6, self-seal device coal spread wind interface 7, self sealss interface disc 11, coal spread wind passage 12 and cooling air passage 13; Self-seal device is a tubular; Be double-wall structure; In the double wall tube-shaped structure, be divided into up and down two independently passages, last autonomous channel is the cooling air passage, and following autonomous channel is the coal spread wind passage; Self sealss interface disc 11 is positioned at an end of self-seal device, is connected with self-seal device coal spread wind interface 7 and self-seal device circumference cooling air interface 6 respectively in the top and bottom of the outer wall of self sealss interface disc; Coal spread wind passage 12 and cooling air passage 13 be connected with self-seal device coal spread wind interface 7 and self-seal device circumference cooling air interface 6 respectively and communicate.
For overcoming the transporting resistance that self-seal device brings, drive motor should a big grade, and the helicallobe structure is trapezoidal, inblock cast.Self-seal device inblock cast, material are heat resisting steel, and its gap, air channel is not less than 5mm.
Claims (2)
1. self-sealed Shaftless screw conveyor; It is characterized in that: this conveyer comprises: drive motor, reductor, bearing chamber, advance material inlet, Shaftless spiral blade, conveying pipeline, drive end front axle and self-seal device; Shaftless spiral blade is positioned at conveying pipeline, and an end of Shaftless spiral blade is welded on the drive end front axle; End at conveying pipeline is connected with bearing chamber, reductor and drive motor in turn, and bearing chamber and reductor connect as one, and the output shaft of reductor is outer to be connected with the interior bearing of bearing chamber; The drive end front axle is connected with the output shaft of reductor, and the other end of conveying pipeline connects self-seal device, and self-seal device one end puts in burner hearth, and the other end connects circumference cooling air and coal spread wind, puts down in the upper surface of conveying pipeline to connect inlet point.
2. according to the described self-sealed Shaftless screw conveyor of claim 1; It is characterized in that: described self-seal device comprises: self-seal device circumference cooling air interface, self-seal device coal spread wind interface, self sealss interface disc, coal spread wind passage and cooling air passage; Self-seal device is a tubular; Be double-wall structure; In the double wall tube-shaped structure, be divided into up and down two independently passages, last autonomous channel is the cooling air passage, and following autonomous channel is the coal spread wind passage; The self sealss interface disc is positioned at an end of self-seal device, is connected with self-seal device coal spread wind interface and self-seal device circumference cooling air interface respectively in the top and bottom of the outer wall of self sealss interface disc; Coal spread wind passage and cooling air passage be connected with self-seal device coal spread wind interface respectively and self-seal device circumference cooling air interface communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204229280U CN202321536U (en) | 2011-10-31 | 2011-10-31 | Self-sealing shaft-free spiral conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204229280U CN202321536U (en) | 2011-10-31 | 2011-10-31 | Self-sealing shaft-free spiral conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202321536U true CN202321536U (en) | 2012-07-11 |
Family
ID=46433525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204229280U Expired - Fee Related CN202321536U (en) | 2011-10-31 | 2011-10-31 | Self-sealing shaft-free spiral conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202321536U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887340A (en) * | 2012-10-25 | 2013-01-23 | 安徽宜桐机械有限公司 | Shaftless screw conveyor |
| CN106863530A (en) * | 2017-03-01 | 2017-06-20 | 浙江洪利竹木业有限公司 | A kind of bamboo straightening equipment |
| CN108294350A (en) * | 2018-01-24 | 2018-07-20 | 苏州尚梵斯科技有限公司 | A kind of air-cooled water replanishing device of high temperature prepared food and its technique |
| CN109250405A (en) * | 2018-11-22 | 2019-01-22 | 湖南行者环保科技有限公司 | A kind of closed feeding device |
-
2011
- 2011-10-31 CN CN2011204229280U patent/CN202321536U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887340A (en) * | 2012-10-25 | 2013-01-23 | 安徽宜桐机械有限公司 | Shaftless screw conveyor |
| CN106863530A (en) * | 2017-03-01 | 2017-06-20 | 浙江洪利竹木业有限公司 | A kind of bamboo straightening equipment |
| CN106863530B (en) * | 2017-03-01 | 2022-05-17 | 浙江洪利竹木业有限公司 | Bamboo straightening equipment |
| CN108294350A (en) * | 2018-01-24 | 2018-07-20 | 苏州尚梵斯科技有限公司 | A kind of air-cooled water replanishing device of high temperature prepared food and its technique |
| CN109250405A (en) * | 2018-11-22 | 2019-01-22 | 湖南行者环保科技有限公司 | A kind of closed feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |