CN2331858Y - Screw underfeed anti-coke coal-fired machine - Google Patents
Screw underfeed anti-coke coal-fired machine Download PDFInfo
- Publication number
- CN2331858Y CN2331858Y CN 98227206 CN98227206U CN2331858Y CN 2331858 Y CN2331858 Y CN 2331858Y CN 98227206 CN98227206 CN 98227206 CN 98227206 U CN98227206 U CN 98227206U CN 2331858 Y CN2331858 Y CN 2331858Y
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- CN
- China
- Prior art keywords
- coal
- chamber
- air compartment
- outer ring
- screw
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- Expired - Fee Related
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Abstract
The utility model relates to a screw underfeed anti-coke coal-fired machine which is provided with a motor, a coal bucket and a screw coal conveying shaft arranged in a coal barrel, wherein the upper side of the other end of the coal barrel of which the upper side of one end is provided with the coal bucket is provided with a coal chamber with an inner and an outer ring-shaped wind chambers; a baffle of the inner ring-shaped wind chamber with a wind inlet is provided with an air port communicated with the outer ring-shaped wind chamber; the top of the inner ring-shaped wind chamber and the upper part of the baffle of the coal chamber are provided with air outlet holes; the top of the outer ring-shaped wind chamber is also provided with an air outlet hole; an ash port of the lower part of the inner ring-shaped wind chamber is provided a movable drawing plate. The utility model has the characteristics of causing the coal to be sufficiently combusted, eliminating smoke, reducing dust, saving energy and preventing from coking; the utility model is suitable for various industrial kilns, civil coal ranges and coal-fired devices matched with boilers.
Description
The utility model relates to a kind of coal-burning installation that is suitable for various industrial furnaces, civilian coal kitchen range and boiler.
At present, raising machine under the employed flat spin on various industrial furnaces, civilian coal kitchen range and the boiler, with the coal delivery shaft that has spiral plate, coal is pushed into the combustion chamber internal combustion, but in use also has following point: one adopts the air supply mode of the no pressure reduction of tradition, and coal is in combustion process, the coal that makes the coal seam of different thickness and different combustion phases all can not completing combustion, reduce burning of coal efficient, make carbon content of cinder higher, cause black smoke and dust and contaminated environment.Secondly unreasonable because of burning condition, easily produce coking in the combustion process, and being bonded in cinder grain on the chamber wall can't in time get rid of also and can form coking, so the active combustion area is reduced, thereby increased the resistance of delivering coal of spiral coal convey axis, when serious, make the spiral coal convey axis fracture, influence the normal operation of burner.
The purpose of this utility model provides a kind of principle of utilizing the pressure reduction air feed, makes the more abundant burning of coal, eliminate smoke to subtract dirt, energy-conservation, and the screw underfeed type device of energy anti-coking.
The utility model is that the technical scheme that achieves the above object is: the anti-scorch coal burning machine of a kind of screw underfeed type, have motor, coal bunker and be contained in the interior spiral coal convey axis of coal tube, it is characterized in that: its other end upside of coal tube that an end upside is equipped with coal bunker is fitted with the coal chamber with inside and outside annular air compartment, have on the dividing plate of interior annular air compartment of air inlet and have the gas port that is communicated with the outer ring air compartment, and the top of interior annular air compartment and dividing plate top, coal chamber have venthole, also have venthole on the top of outer ring air compartment, the ash mouth of interior annular air compartment bottom is equipped with movable pumping board.
The utility model adopts the advantage before the technique scheme to be: because of in the coal chamber has; the outer ring air compartment; enter the outer ring air compartment again after making wind be introduced into interior annular air compartment; wind has had certain pressure reduction after entering the coal chamber; make the coal seam of different-thickness and the fire coal of different combustion phases obtain rational intake; coal is carried out the abundant burning of science in the outside moving process by the center in the combustion district; make it can not produce the whole coking of bulk; and be bonded at cinder grain on the wall externally under the cooling effect of cold wind; can Yin Wendu low and the big coke block wall sticking phenomenon can not occur; guaranteeing that coal is constantly delivered in the combustion chamber fully burns; improved burning of coal efficient; energy savings, having reached simultaneously initiatively eliminates smoke subtracts dirt; the purpose of protection atmospheric environment.Secondly set up ash-removing mouth in the bottom of air compartment, made the dust stratification in the air compartment be able to timely eliminating, guaranteed that the air channel is unimpeded.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Fig. 1 is a structural representation of the present utility model
The anti-scorch combustor of screw underfeed type as shown in Figure 1, have motor (1), coal bunker (3), coal tube (9) and spiral coal convey axis (10), the motor (1) that is contained on the frame (13) passes through shaft coupling (2) and spiral coal convey axis (10) load, have transport screw blade (10-1) and reverse acting spiral blade (10-2) on the spiral coal convey axis (10), spiral coal convey axis (10) is installed on the frame (13) by forward and backward bearing and forward and backward bearing, wheel shaft and wheel are equipped with in frame (13) bottom, move very convenient.Coal tube (9) is sleeved on the spiral coal convey axis (10), one end upside of coal tube (9) is equipped with coal bunker (3), the other end upside of coal tube (9) is equipped with in the band, outer ring air compartment (7), (8) coal chamber (6), have on the dividing plate (7-2) of interior annular air compartment (7) of air inlet (5) and have the gas port (7-1) that communicates with outer ring air compartment (8), enter outer ring air compartment (8) again after making wind enter interior annular air compartment (7), the top of interior annular air compartment (7) and dividing plate top, coal chamber (6) have venthole (7-3), for wind can tangentially be entered in the coal chamber (6), coal chamber (6) can be pyramid.The top of outer ring air compartment (8) also has venthole (8-1), plays a reversed role and reduces the resistance that coal is outwards moved by the center in the combustion zone for preventing naked light, and the top of outer ring air compartment (8) and the angle of horizontal plane are 0 °～30 °.Just have certain pressure reduction so wind enters in the coal chamber (6) from venthole (7-3), (8-1) of inside and outside annular air compartment (7), (8), make that the coal of different coal and different combustion phases carries out rationally, the burning of science.The bottom of interior annular air compartment (7) has several ashes mouthful (7-4), movable pumping board (11) is equipped with in ash mouthful (7-4) bottom, and there is limited block (12) spacing, on the movable pumping board (11) draw ring (4) is housed also, movable pumping board (11) is moved and the interior lime-ash of eliminating air compartment, guarantee the unimpeded of air channel.
For the further resistance of delivering coal that reduces spiral coal convey axis (10), the floor space of dwindling whole device, spiral coal convey axis (10) can be 0 °～30 ° with the angle of horizontal plane.
As shown in Figure 1, when coal enters coal bunker (3), motor (1) advances coal in the coal chamber (6) by positive and negative helical blade (10-1), (10-2) that shaft coupling (2) drives on the spiral coal convey axis (10), along with wind enters coal chamber (6) from venthole (7-3), (8-1) of inside and outside annular air compartment (7), (8), make coal fully be helped burning scientific and reasonable under the situation of oxygen on top, coal chamber (6).
Claims (4)
1, the anti-scorch coal burning machine of a kind of screw underfeed type, has motor (1), coal bunker (3) and be contained in spiral coal convey axis (10) in the coal tube (9), it is characterized in that: its other end upside of coal tube (9) that an end upside is equipped with coal bunker (3) is fitted with in the band, outer ring air compartment (7), (8) coal chamber (6), have on the dividing plate (7-2) of interior annular air compartment (7) of air inlet (5) and have the gas port (7-1) that is communicated with outer ring air compartment (8), and the top of interior annular air compartment (7) and dividing plate top, coal chamber have venthole (7-3), also have venthole (8-1) on the top of outer ring air compartment (8), the ash mouthful (7-4) of interior annular air compartment (7) bottom is equipped with movable pumping board (11).
2, the anti-scorch coal burning machine of screw underfeed type according to claim 1 is characterized in that: the top of outer ring air compartment (8) becomes 0 °～30 ° with horizontal plane angle.
3, the anti-scorch coal burning machine of screw underfeed type according to claim 1 is characterized in that coal chamber (6) is pyramid.
4, according to claim 1, the anti-scorch coal burning machine of 2 or 3 described screw underfeed types, it is characterized in that: spiral coal convey axis (10) becomes 0 °～30 ° with the angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227206 CN2331858Y (en) | 1998-06-25 | 1998-06-25 | Screw underfeed anti-coke coal-fired machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98227206 CN2331858Y (en) | 1998-06-25 | 1998-06-25 | Screw underfeed anti-coke coal-fired machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331858Y true CN2331858Y (en) | 1999-08-04 |
Family
ID=33977563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98227206 Expired - Fee Related CN2331858Y (en) | 1998-06-25 | 1998-06-25 | Screw underfeed anti-coke coal-fired machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331858Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471126A (en) * | 2013-08-30 | 2013-12-25 | 江苏太湖锅炉股份有限公司 | Double-fuel feeding device |
-
1998
- 1998-06-25 CN CN 98227206 patent/CN2331858Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471126A (en) * | 2013-08-30 | 2013-12-25 | 江苏太湖锅炉股份有限公司 | Double-fuel feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |