CN219120552U - Coal dropping port of circulating fluidized bed boiler - Google Patents
Coal dropping port of circulating fluidized bed boiler Download PDFInfo
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- CN219120552U CN219120552U CN202222911633.0U CN202222911633U CN219120552U CN 219120552 U CN219120552 U CN 219120552U CN 202222911633 U CN202222911633 U CN 202222911633U CN 219120552 U CN219120552 U CN 219120552U
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Abstract
The utility model discloses a coal dropping port of a circulating fluidized bed boiler, which comprises a furnace body, a vertically arranged feed pipe, a obliquely arranged coal inlet pipe, a crushing mechanism arranged on the feed pipe and used for crushing coal blocks, and a driving mechanism which is arranged on the feed pipe and used for driving the two crushing shafts, wherein one end of the coal inlet pipe, which is connected with the furnace body, is lower than one end of the coal inlet pipe, which is connected with the feed pipe, and the crushing mechanism comprises two crushing shafts which are rotationally connected on the feed pipe and are symmetrically arranged, a plurality of crushing blades are arranged on the two crushing shafts, and a driving mechanism which is used for driving the two crushing shafts is arranged on the feed pipe. According to the utility model, through the arrangement of the crushing mechanism, the crushing blades on the crushing shaft are driven to rotate under the driving action of the driving mechanism, and the agglomerated coal is crushed under the crushing action of the crushing blades, so that the blockage of the coal block on the coal inlet pipe is avoided, the sufficiency of the furnace body fuel is ensured, and the working efficiency of the furnace body is improved.
Description
Technical Field
The utility model relates to the technical field of circulating fluidized bed boilers, in particular to a coal dropping port of a circulating fluidized bed boiler.
Background
The circulating fluidized bed boiler is a device for burning various dyes to generate heat energy, adopts fluidized combustion, has a main structure comprising a combustion chamber and a circulating furnace, well solves the basic problems of heat, mechanics, materialics and the like and the engineering problems of expansion, abrasion, overtemperature and the like, and becomes an advanced technology for utilizing energy of flame-retardant solid fuel (such as coal gangue, oil shale, municipal refuse, silt and other wastes).
In the process of adding coal, the circulating fluidized bed boiler contains moisture in the coal, so that a large amount of coal is crowded together when the coal is added from the coal inlet pipe, and the coal is agglomerated in the coal inlet pipe under the action of extrusion, so that the coal inlet pipe is easy to be blocked.
There is therefore a need for a circulating fluidized bed boiler coal drop port that addresses the above-described problems.
Disclosure of Invention
The utility model aims to provide a coal dropping port of a circulating fluidized bed boiler, which aims to solve the problem that coal in the background technology is agglomerated in a coal inlet pipe and is easy to cause blockage of the coal inlet pipe.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the coal dropping port of the circulating fluidized bed boiler comprises a furnace body, a vertically arranged feed pipe, a obliquely arranged coal inlet pipe, a crushing mechanism arranged on the feed pipe and used for crushing coal blocks, a conveying mechanism arranged on the feed pipe and used for conveying coal materials, and a knocking mechanism arranged on the feed pipe and used for knocking the coal materials attached to the inner wall of the feed pipe, wherein one end of the coal inlet pipe connected with the furnace body is lower than one end of the coal inlet pipe connected with the feed pipe;
the crushing mechanism comprises two crushing shafts which are connected to the feeding pipe in a rotating mode and are symmetrically arranged, a plurality of crushing blades are arranged on the two crushing shafts, and a driving mechanism used for driving the two crushing shafts is arranged on the feeding pipe.
The driving mechanism comprises a U-shaped plate fixedly connected to the side wall of the feeding pipe, a first motor is arranged on the U-shaped plate, one end of each crushing shaft penetrates through the feeding pipe and is fixedly connected with a first gear and a second gear, the first gear and the second gear are mutually meshed, and the output end of the first motor is connected with one of the two crushing shafts.
The conveying mechanism comprises a rotating shaft which is rotationally connected to the coal inlet pipe, a spiral blade is arranged on the rotating shaft, a mounting plate is fixedly connected to the coal inlet pipe, a second motor is arranged on the mounting plate, and the output end of the second motor is connected with the rotating shaft.
And a conical diversion port is arranged below the two crushing shafts and is positioned above the spiral blades.
The utility model discloses a novel structure of a T-shaped rod, including the L-shaped plate of first motor one side is kept away from to the striking mechanism, sliding connection has T-shaped rod on the L-shaped plate, be equipped with the impeller block on the T-shaped rod lateral wall, the inclined plane has been seted up on the impeller block, two the other end of one of them broken axle runs through the inlet pipe setting to fixedly connected with cam, the cam slides on the inclined plane, the cover is equipped with the spring on the T-shaped rod, the both ends of spring are connected with the lateral wall of L-shaped plate and T-shaped rod respectively, sliding connection has the guide bar on the lateral wall that the L-shaped plate is close to the cam, the other end of guide bar is connected with the lateral wall of T-shaped rod.
And a buffer cushion is arranged on the lower bottom wall of the coal inlet pipe.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the arrangement of the crushing mechanism, the crushing blades on the crushing shaft are driven to rotate under the driving action of the driving mechanism, and the agglomerated coal is crushed under the crushing action of the crushing blades, so that the blockage of the coal block on the coal inlet pipe is avoided, the sufficiency of the furnace body fuel is ensured, and the working efficiency of the furnace body is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged view of the coal drop port of the present utility model;
FIG. 3 is a schematic view of the internal structure of the feed pipe and the coal feed pipe of the present utility model;
fig. 4 is an enlarged view at a in fig. 2.
In the figure: 101. a furnace body; 102. a feed pipe; 103. a coal inlet pipe; 201. a crushing shaft; 202. crushing the blades; 301. a U-shaped plate; 302. a first motor; 303. a first gear; 304. a second gear; 401. a rotating shaft; 402. a helical blade; 403. a mounting plate; 404. a second motor; 5. a diversion port; 601. an L-shaped plate; 602. a T-shaped rod; 603. a pushing block; 604. an inclined plane; 605. a cam; 606. a spring; 607. a guide rod; 7. and a cushion pad.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the coal dropping port of the circulating fluidized bed boiler provided by the utility model comprises a furnace body 101, a vertically arranged feed pipe 102, a obliquely arranged coal inlet pipe 103, a crushing mechanism arranged on the feed pipe 102 and used for crushing coal blocks, a conveying mechanism arranged on the feed pipe 103 and used for conveying coal materials, and a knocking mechanism arranged on the feed pipe 102 and used for knocking the coal materials attached to the inner wall of the feed pipe 102, wherein one end of the coal inlet pipe 103 connected with the furnace body 101 is lower than one end of the coal inlet pipe 103 connected with the feed pipe 102;
the crushing mechanism comprises two crushing shafts 201 which are connected to the feeding pipe 102 in a rotating manner and are symmetrically arranged, a plurality of crushing blades 202 are arranged on the two crushing shafts 201, a driving mechanism for driving the two crushing shafts 201 is arranged on the feeding pipe 102, the crushing blades 202 on the crushing shafts 201 are driven to rotate under the driving action of the driving mechanism, and caking coal is crushed under the crushing action of the crushing blades 202, so that the coal briquette is prevented from blocking the coal feeding pipe 103, the fuel sufficiency of the furnace body 101 is ensured, and the working efficiency of the furnace body 101 is improved.
The driving mechanism comprises a U-shaped plate 301 fixedly connected to the side wall of the feeding pipe 102, a first motor 302 is arranged on the U-shaped plate 301, one ends of two crushing shafts 201 penetrate through the feeding pipe 102 and are fixedly connected with a first gear 303 and a second gear 304, the first gear 303 and the second gear 304 are meshed with each other, the output end of the first motor 302 is connected with one of the two crushing shafts 201, the two crushing shafts 201 are driven to rotate through the arrangement of the driving mechanism, and the rotation directions of the two crushing shafts 201 are opposite, so that coal blocks are crushed more fully.
The conveying mechanism comprises a rotating shaft 401 which is rotationally connected to the coal inlet pipe 103, a spiral blade 402 is arranged on the rotating shaft 401, a mounting plate 403 is fixedly connected to the coal inlet pipe 103, a second motor 404 is arranged on the mounting plate 403, the output end of the second motor 404 is connected with the rotating shaft 401, and broken coal blocks are prevented from adhering to the inner wall of the coal inlet pipe 103 through the arrangement of the conveying mechanism, so that the channel of the coal inlet pipe 103 is reduced, and the coal inlet speed of the furnace body 101 is influenced.
The below of two crushing axles 201 is equipped with the water conservancy diversion mouth 5 that the toper set up, and water conservancy diversion mouth 5 is located helical blade 402's top, and the setting of water conservancy diversion mouth 5 plays the effect of drainage.
The knocking mechanism comprises an L-shaped plate 601 fixedly connected to one side of the feeding pipe 102 far away from the first motor 302, a T-shaped rod 602 is slidably connected to the L-shaped plate 601, a pushing block 603 is arranged on the side wall of the T-shaped rod 602, an inclined surface 604 is formed in the pushing block 603, the other end of one of the two crushing shafts 201 penetrates through the feeding pipe 102 and is fixedly connected with a cam 605, the cam 605 slides on the inclined surface 604, a spring 606 is sleeved on the T-shaped rod 602, two ends of the spring 606 are respectively connected with the L-shaped plate 601 and the side wall of the T-shaped rod 602, one end of the T-shaped rod 602 abuts against the side wall of the feeding pipe 102 under the elastic force of the spring 606, a guide rod 607 is slidably connected to the side wall of the L-shaped plate 601 close to the cam 605, and the other end of the guide rod 607 is connected with the side wall of the T-shaped rod 602, and through the setting of the knocking mechanism, on one hand, the large amount of coal is prevented from being attached to the side wall of the feeding pipe 102, the blocking of the feeding pipe 102 is caused, and on the other hand, the speed of the coal falling into the feeding pipe 103 is accelerated, and the fuel sufficiency of the furnace body 101 is ensured.
The buffer cushion 7 is arranged on the lower bottom wall of the coal inlet pipe 103, so that direct impact of coal on the bottom wall of the coal inlet pipe 103 is avoided, and the service life of the coal inlet pipe 103 is prolonged.
Working principle: when the furnace body 101 is required to be charged with coal, the coal is added from the mouth of the feed pipe 102, and because the coal contains moisture, a large amount of coal is crowded together in the process of charging the coal, and the caking phenomenon of the coal is caused under the action of extrusion, so that the coal is prevented from blocking the coal inlet pipe 103, the coal is required to be crushed in advance, in the crushing process, the crushing blades 202 on the crushing shaft 201 are driven to rotate by starting the first motor 302, and the caking coal is crushed under the crushing action of the crushing blades 202, so that the blockage of the coal to the coal inlet pipe 103 is avoided;
after the coal briquette is crushed, the coal briquette falls into the coal inlet pipe 103 from the cone-shaped guide port 5 under the action of gravity, the second motor 404 is started to drive the spiral blade 402 to rotate, so that the coal briquette falling into the coal inlet pipe 103 is fed into the furnace body 101, and the crushed coal briquette is prevented from adhering to the inner wall of the coal inlet pipe 103 by the arrangement of the spiral blade 402, so that the channel of the coal inlet pipe 103 is reduced, and the coal inlet speed of the furnace body 101 is influenced;
in the process of crushing coal blocks by the crushing shaft 201, the cam 605 is driven to rotate, when the cam 605 is abutted against the inclined plane 604 on the pushing block 603 in the process of rotating the cam 605, the T-shaped rod 602 is pushed to move away from the feeding pipe 102 under the action of interaction force and the guiding action of the guide rod 607, at the moment, the spring 606 is stressed to deform to form elastic force, when the cam 605 is not abutted against the pushing block 603 any more, the T-shaped rod 602 is pushed to reset under the elastic force of the spring 606, so that the side wall of the feeding pipe 102 is knocked, the T-shaped rod 602 is driven to continuously knock the side wall of the feeding pipe 102 along with the continuous rotation of the crushing shaft 201, the coal attached to the side wall of the feeding pipe 102 is shaken into the coal pipe 103, on one hand, the phenomenon that a large amount of coal is attached to the side wall of the feeding pipe 102 is avoided, the blockage of the feeding pipe 102 is caused, on the other hand, the speed that the coal falls into the coal pipe 103 is accelerated, and the sufficiency of the fuel of the furnace body 101 is ensured.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. A circulating fluidized bed boiler coal drop port comprising:
the device comprises a furnace body (101), a vertically arranged feed pipe (102) and a coal inlet pipe (103) which is obliquely arranged, wherein one end of the coal inlet pipe (103) connected with the furnace body (101) is lower than one end of the coal inlet pipe (103) connected with the feed pipe (102);
characterized by further comprising:
the crushing mechanism is arranged on the feeding pipe (102) and used for crushing coal blocks;
the conveying mechanism is arranged on the coal inlet pipe (103) and used for conveying coal;
the knocking mechanism is arranged on the feeding pipe (102) and used for knocking the coal attached to the inner wall of the feeding pipe (102);
the crushing mechanism comprises two crushing shafts (201) which are connected to the feeding pipe (102) in a rotating mode and are arranged symmetrically, a plurality of crushing blades (202) are arranged on the two crushing shafts (201), and a driving mechanism used for driving the two crushing shafts (201) is arranged on the feeding pipe (102).
2. A circulating fluidized bed boiler coal drop port of claim 1, wherein: the driving mechanism comprises a U-shaped plate (301) fixedly connected to the side wall of the feeding pipe (102), a first motor (302) is arranged on the U-shaped plate (301), one end of each crushing shaft (201) penetrates through the feeding pipe (102) and is fixedly connected with a first gear (303) and a second gear (304), the first gear (303) and the second gear (304) are mutually meshed, and the output end of each first motor (302) is connected with one of the two crushing shafts (201).
3. A circulating fluidized bed boiler coal drop port of claim 1, wherein: the conveying mechanism comprises a rotating shaft (401) which is rotationally connected to the coal inlet pipe (103), a spiral blade (402) is arranged on the rotating shaft (401), a mounting plate (403) is fixedly connected to the coal inlet pipe (103), a second motor (404) is arranged on the mounting plate (403), and the output end of the second motor (404) is connected with the rotating shaft (401).
4. A circulating fluidized bed boiler coal drop port according to claim 3, characterized in that: and a conical diversion port (5) is arranged below the two crushing shafts (201), and the diversion port (5) is positioned above the spiral blades (402).
5. A circulating fluidized bed boiler coal drop port of claim 1, wherein: the utility model provides a strike mechanism includes L template (601) of fixed connection in inlet pipe (102) one side of keeping away from first motor (302), sliding connection has T type pole (602) on L template (601), be equipped with on the lateral wall of T type pole (602) and promote piece (603), offer inclined plane (604) on promoting piece (603), two the other end of one of them broken axle (201) runs through inlet pipe (102) setting to fixedly connected with cam (605), cam (605) slide on inclined plane (604), the cover is equipped with spring (606) on T type pole (602), the both ends of spring (606) are connected with the lateral wall of L type pole (601) and T type pole (602) respectively, sliding connection has guide bar (607) on the lateral wall that L type pole (601) is close to cam (605), the other end of guide bar (607) is connected with the lateral wall of T type pole (602).
6. A circulating fluidized bed boiler coal drop port of claim 1, wherein: and a buffer cushion (7) is arranged on the lower bottom wall of the coal inlet pipe (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222911633.0U CN219120552U (en) | 2022-11-02 | 2022-11-02 | Coal dropping port of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222911633.0U CN219120552U (en) | 2022-11-02 | 2022-11-02 | Coal dropping port of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219120552U true CN219120552U (en) | 2023-06-02 |
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ID=86530110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222911633.0U Active CN219120552U (en) | 2022-11-02 | 2022-11-02 | Coal dropping port of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219120552U (en) |
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2022
- 2022-11-02 CN CN202222911633.0U patent/CN219120552U/en active Active
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