CN113154434A - Coal feeding device - Google Patents
Coal feeding device Download PDFInfo
- Publication number
- CN113154434A CN113154434A CN202110458187.XA CN202110458187A CN113154434A CN 113154434 A CN113154434 A CN 113154434A CN 202110458187 A CN202110458187 A CN 202110458187A CN 113154434 A CN113154434 A CN 113154434A
- Authority
- CN
- China
- Prior art keywords
- coal
- hopper
- bunker
- scraper
- coal bunker
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/10—Supply line fittings
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
The invention relates to a coal feeding device, which comprises a coal bunker, a coal hopper and a coal dropping pipe, wherein the coal hopper is rotatably arranged relative to the coal bunker and the coal dropping pipe, the coal hopper rotates along the axis line of the coal hopper, the lower part of the coal bunker extends into the upper part of the coal hopper, the coal feeding device also comprises a sealing structure arranged between the lower part of the coal bunker and the upper part of the coal hopper, a supporting component arranged between the coal bunker and the upper part of the coal hopper, a driving component arranged between the coal dropping pipe and the lower part of the coal hopper and a scraper component arranged in the coal hopper, the scraper component comprises a plurality of scrapers, each scraper is provided with a connecting edge connected to the inner wall surface of the coal hopper, a scraper edge opposite to the connecting edge and a cutter surface connecting the connecting edge and the scraper edge, and when the coal hopper rotates, the coal hopper drives the scrapers to synchronously rotate. The invention reduces heavy dredging work such as manual beating of the wall of the coal bunker, coal drawing and the like, overcomes the problem that the traditional blockage clearing methods such as a coal hopper air cannon, a rapping device and the like can not effectively clear blockage, enables the coal supply system to enter a normal working state, enables the raw coal bunker to smoothly discharge coal, and ensures the safe operation of the power station boiler.
Description
Technical Field
The invention relates to the field of coal-fired power plants, in particular to a coal feeding device.
Background
The traditional coal bunker of the raw coal bunker is easy to form a raw coal sticky blocking or coal arch structure due to reasons of raw coal moisture, too large coal blocks and the like, so that the effect of the blockage clearing method of the raw coal blocking in the coal bunker, an air cannon, a rapping device and the like is not obvious, the traditional rotary coal bunker also has the problem of design of an internal blade, and the rotary coal bunker must run uninterruptedly, has poor effect on serious blockage of sticking and high-position arch blocking due to the design of the single blade, and only needs to knock the bunker wall by manpower, dig coal and other heavy dredging works. The manual blockage clearing and coal dropping pipe clearing is dangerous work, the labor intensity of workers is high, great potential safety hazards exist for the safe operation of a power plant, and personal casualty accidents can happen when a coal bin is cleared and blocked carelessly. In the prior art, the urban sludge is commonly mixed and burned in the coal-fired boiler, the coal blockage problem of a coal hopper is more serious after the sludge is mixed into raw coal, and a coal feeding device capable of better solving the coal blockage problem is urgently needed.
Disclosure of Invention
The invention aims to provide a coal feeding device.
In order to achieve the purpose, the invention adopts the technical scheme that:
a coal feeding device comprises a coal bunker, a coal bunker and a coal dropping pipe, wherein the coal bunker is communicated with the upper part of the coal bunker, the coal dropping pipe is communicated with the lower part of the coal bunker, the coal bunker and the coal dropping pipe are fixedly arranged, the coal bunker is rotatably arranged relative to the coal bunker and the coal dropping pipe, the coal bunker rotates along the axis of the coal bunker, the lower part of the coal bunker extends into the upper part of the coal bunker,
the coal feeding device also comprises a sealing structure arranged between the lower part of the coal bunker and the upper part of the coal bunker, a supporting component arranged between the coal bunker and the upper part of the coal bunker, a driving component arranged between the coal dropping pipe and the lower part of the coal bunker and a scraper component arranged in the coal bunker,
the scraper subassembly include the polylith scraper, the scraper have connect the limit, with the scraper limit that is relative on connection limit and connect the connection limit with the knife face on scraper limit, the connection limit connect the internal face of coal scuttle on, work as the coal scuttle rotatory, the coal scuttle drive the synchronous rotation of scraper.
Preferably, the length direction of the scraper extends spirally along the axial direction of the coal bucket.
Further preferably, a plurality of said doctor blades extend in the same direction.
Preferably, the lower ends of the plurality of scrapers are encircled to form a circle.
Preferably, the blade face and the inner wall face of the coal bucket form an included angle of 0-45 degrees.
Preferably, the thickness of the blade surface gradually decreases along the connecting edge towards the blade edge.
Preferably, the upper end of the scraper extends into the coal bunker, and the upper end of the scraper is provided with a notch matched with the shape of the part of the coal bunker extending into the coal bunker.
Further preferably, the width of the scraper except for the notch at the upper end of the scraper is gradually narrowed from top to bottom.
Further preferably, a V-shaped connecting portion is provided between the upper end of the connecting edge and the upper end of the scraper edge, and the V-shaped connecting portion forms the notch.
More preferably, the surface of one side of the V-shaped connecting part connected with the connecting edge is an arc, so that the problem of raw coal accumulation is reduced to the greatest extent, and the side of the V-shaped connecting part connected with the scraper edge is attached to the inner wall surface of the coal bunker, so that raw coal or coal dust attached to the lower part of the coal bunker can be scraped better.
Preferably, the upper end of the scraper edge is an arc-shaped edge, and the joint of the upper end of the scraper edge and the scraper face is a round angle, so that the smoothness of coal falling during normal unblocking can be balanced.
Preferably, the coal hopper is provided with a circular truncated cone section connected with the coal bunker, the scraper is arranged on the circular truncated cone section, and the lower end of the scraper extends to the lower end of the circular truncated cone section.
Further preferably, the diameter of the circular truncated cone section is gradually reduced from top to bottom.
Preferably, a plurality of scrapers are uniformly distributed on the inner wall surface of the coal hopper.
Preferably, the sealing structure comprises a first sealing part formed by a part of the coal bunker, which extends into the coal bunker, and a second sealing part formed by an upper part of the coal bunker, which is positioned outside the first sealing part, wherein the first sealing part and the second sealing part are matched to form a sealing area.
Further preferably, the sealing structure further comprises a sealing member, and the sealing member is disposed in the sealing region.
Still more preferably, the material of the sealing element comprises rubber and wool felt.
More preferably, a lower convex portion is formed at a lower end of the first sealing portion, the lower convex portion extends toward the second sealing portion, and/or an upper convex portion is formed at an upper end of the first sealing portion, the upper convex portion extends toward the second sealing portion, and/or an upper portion of the coal bucket protrudes inward to form the second sealing portion.
Still further preferably, the diameter of the first sealing portion is gradually reduced from top to bottom, the diameter of the second sealing portion is gradually reduced from top to bottom, the bunker and the bunker are concentrically arranged, the maximum diameter of the lower convex portion is not greater than the minimum diameter of the second sealing portion, and the maximum diameter of the upper convex portion is not less than the maximum diameter of the second sealing portion.
Preferably, the coal feeding device further comprises a coal bunker bracket, and the coal bunker is arranged on the coal bunker bracket.
Preferably, the driving assembly drives the coal hopper to rotate, the driving assembly comprises a power source, a rack arranged on the periphery of the coal hopper, and a gear assembly in transmission connection with the power source, the gear assembly comprises at least three gears meshed with the rack simultaneously, and the at least three gears are uniformly distributed.
Further preferably, when only one power source is provided, one of the at least three gears is sleeved at the output end of the power source; when the power source is provided with a plurality of power sources, the number of the power sources is not more than the number of the gears, and each power source is correspondingly provided with one gear.
Further preferably, the coal feeding device further comprises a fixed seat, the fixed seat is arranged on the outer peripheral surface of the coal dropping pipe, and the power source and the gear are both arranged on the fixed seat.
Still further preferably, only one of the power sources is disposed on the fixing base, and/or only one of the gears is disposed through the rotating shaft.
Preferably, the support assembly comprises a first support frame arranged on the coal bunker, a second support frame arranged on the coal bunker, and a pulley assembly, wherein the pulley assembly comprises at least three pulleys capable of rotating automatically, the at least three pulleys are uniformly distributed, and the at least three pulleys are arranged between the first support frame and the second support frame.
Further preferably, the pulley is arranged on the second support frame and simultaneously abuts against the side surface of the first support frame.
Further preferably, the first support frame and the coal bunker are integrally arranged, and/or the second support frame and the coal hopper are integrally arranged.
Preferably, the outer peripheral surface of the lower part of the coal hopper is provided with a step surface, the lower part of the coal hopper is inserted into the upper end of the coal dropping pipe, the step surface of the coal hopper is positioned on the upper end surface of the coal dropping pipe, and an annular bearing is arranged between the step surface of the coal hopper and the upper end surface of the coal dropping pipe.
Preferably, the coal feeding device further comprises a coal feeder, and the coal feeder is communicated with the coal dropping pipe and arranged below the coal dropping pipe.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the invention reduces heavy dredging work such as manual beating of the coal bunker wall, coal drawing and the like, overcomes the problem that the traditional blockage clearing methods such as a coal hopper air cannon, a rapping device and the like can not effectively clear blockage, enables a coal supply system to enter a normal working state, enables a raw coal bunker to smoothly discharge coal, and ensures the safe operation of a power station boiler.
Drawings
FIG. 1 is a schematic structural view of a coal feeder (a partial cross-section around a coal hopper) according to this embodiment;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is an enlarged schematic view of portion B of FIG. 2;
FIG. 4 is an enlarged schematic view of portion C of FIG. 2;
FIG. 5 is a detailed view of the upper end of the scraper in the present embodiment in cooperation with the sealing structure;
FIG. 6 is a top view of the drive assembly (not shown) of this embodiment;
FIG. 7 is a top view of the drive assembly (shown as a protective cover) of the present embodiment;
fig. 8 is a top view of the support assembly of this embodiment.
In the above drawings: 1. a coal bunker; 2. a coal hopper; 21. a step surface; 3. a coal dropping pipe; 4. a coal feeder; 51. a first seal portion; 511. an upper convex portion; 512. a lower convex portion; 52. a second seal portion; 53. a seal member; 6. a scraper; 61. a connecting edge; 62. scraping the edge of the knife; 63. a knife face; 64. a V-shaped connecting part; 71. a power source; 72. racks, 73, gears; 74. a protective cover; 81. a first support frame; 82. a second support frame; 83. a pulley; 91. a fixed seat; 92. a coal bunker support; 93. and a ring bearing.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a coal feeding device comprises a coal bunker 1, a coal hopper, a coal dropping pipe 3, a coal feeder 4, a sealing structure, a supporting assembly, a driving assembly, a scraper assembly, a fixing seat 91 and a coal bunker support 92. The coal feeding device is used for the anti-blocking dredging field after irregular particles or solid fuel with stronger viscosity forms a viscous or arch-shaped structure in the feeding device, and is particularly suitable for the anti-blocking field of a coal bunker 1 coal hopper of a coal-fired power plant.
As shown in fig. 1 and 2, a coal bunker 1, a coal bunker 2 and a coal dropping pipe 3 are concentrically and coaxially arranged, the coal bunker 1 is communicated with the upper part of the coal bunker 2, the lower part of the coal bunker 1 extends into the upper part of the coal bunker 2, the coal dropping pipe 3 is communicated with the lower part of the coal bunker 2, the lower part of the coal bunker 2 extends into the upper part of the coal dropping pipe 3, a coal feeder 4 is communicated with the coal dropping pipe 3 and is arranged at the lower part of the coal dropping pipe 3, the coal bunker 1 and the coal dropping pipe 3 are fixedly arranged, the coal bunker 2 is rotatably arranged relative to the coal bunker 1 and the coal dropping pipe 3, and the specific coal bunker 2 can rotate along the self axial lead. The coal hopper 2 comprises a circular table section 21 and a cylinder section 22, the circular table section 21 is connected with the coal bunker 1, the cylinder section 22 is connected with the coal dropping pipe 3, the diameter of the circular table section 21 is gradually reduced from top to bottom, and the diameter of the lower part of the coal bunker 1 is also gradually reduced from top to bottom.
As shown in fig. 2 and 3, the sealing structure is arranged between the lower part of the coal bunker 1 and the upper part of the coal bunker 2, the supporting component is arranged between the coal bunker 1 and the upper part of the coal bunker 2, the driving component is arranged between the lower parts of the coal bunker 3 and the coal bunker 2 and drives the coal bunker 2 to rotate, the scraper component is arranged in the coal bunker 2, the fixing seat 91 is used for installing the driving component and is arranged on the peripheral surface of the coal bunker 3, the coal bunker 1 is arranged on the coal bunker support 92, and the coal bunker support 92 supports the coal bunker 1 to prevent the coal bunker 1 from excessively extruding the coal bunker 2 to influence the rotation of the coal bunker 2.
As shown in fig. 3, the sealing structure includes a first sealing portion 51 formed by a portion of the lower portion of the coal bunker 1 extending into the coal bunker 2, a second sealing portion 52 formed by the upper portion of the coal bunker 2 and located outside the first sealing portion 51, and a sealing member 53, the first sealing portion 51 and the second sealing portion 52 are matched to form a sealing area, and the sealing member 53 is disposed in the sealing area to reduce the overflow of coal dust in operation, thereby effectively solving the problem that the traditional sealing wind consumes energy and being beneficial to energy conservation. The diameter of the first sealing part 51 is gradually reduced from top to bottom, and is consistent with the shape of the lower part of the coal bunker 1; the diameter of the second sealing portion 52 is gradually reduced from the top to the bottom, and is identical to the shape of the upper portion of the coal hopper 2. The sealing member 53 is a wear-resistant soft sealing ring made of rubber, felt, or the like.
The lower end of the first sealing part 51 is formed with a lower convex part 512, the lower convex part 512 extends towards the second sealing part 52, the maximum diameter of the lower convex part 512 is not larger than the minimum diameter of the second sealing part 52, so as to ensure smooth butt joint during installation. The upper end of the first sealing part 51 is provided with an upper convex part 511, the upper convex part 511 extends towards the second sealing part 52, the maximum diameter of the upper convex part 511 is not smaller than the maximum diameter of the second sealing part 52, and the depth of the coal bunker 1 extending downwards into the coal bunker 2 can be limited. The upper portion of the coal bucket 2 protrudes inward to form a second seal portion 52, and forms a seal region in cooperation with the upper convex portion 511 and the lower convex portion 512 of the first seal portion 51, so that the seal 53 can be firmly fitted without dropping.
The first sealing part 51 is integrated with the coal bunker 1, namely, the lower part of the coal bunker 1 is expanded outwards for a circle, the second sealing part 52 is integrated with the coal hopper 2, namely, the upper part of the coal hopper 2 is protruded inwards for a circle, large-particle raw coal smoothly falls to the coal hopper 2 under the action of gravity, the falling part is a little away from the seam between the coal bunker 1 and the coal hopper 2, and the situation that the raw coal is not accumulated at the seam is ensured.
As shown in fig. 2 and 5, the scraper assembly includes a plurality of scrapers 6, each scraper 6 has a connecting edge 61, a scraper edge 62 opposite to the connecting edge 61, and a scraper surface 63 connecting the connecting edge 61 and the scraper edge 62, the connecting edge 61 is connected (in this embodiment, by welding) to an inner wall surface of the coal bucket 2, and when the coal bucket 2 rotates, the coal bucket 2 drives the scrapers 6 to rotate synchronously. The coal hopper 2 drives the scraper component to periodically rotate in the forward and reverse directions, so that raw coal is forced to fall to the coal dropping pipe 3, and the purposes of thoroughly breaking arches and smoothly discharging are achieved.
The length direction of the scraper 6 extends along the axial direction of the coal hopper 2, and the scraper 6 extends spirally along the inner wall surface of the coal hopper 2 in the length direction, so that the strength and the coal scraping efficiency of the scraper can be ensured. The knife surface 63 and the inner wall surface of the coal bucket 2 form an included angle of 0-45 degrees, and the thickness of the knife surface 63 gradually decreases along the connecting edge 61 towards the scraper edge 62.
The upper end of the scraper 6 is provided with a notch matched with the shape of the part of the coal bunker 1 extending into the coal bunker 2, and the width of the part of the scraper 6 except the notch at the upper end is gradually narrowed from top to bottom. A V-shaped connecting part 64 is arranged between the upper end of the connecting edge 61 and the upper end of the scraper edge 62, and the V-shaped connecting part 64 forms the notch. The surface of one side of the V-shaped connecting part 64 connected with the connecting edge 61 is an arc, and two sides of the arc surface are connected with two sides of the cutter surface 63, so that the problem of raw coal accumulation is reduced to the greatest extent. One side of the V-shaped connecting part 64 connected with the scraper edge 62 is attached to the inner wall surface of the coal bunker 1, so that raw coal or coal dust attached to the lower part of the coal bunker 1 can be better scraped. The upper end of the scraper edge 62 is an arc-shaped edge, and the joint of the upper end of the scraper edge 62 and the cutter face 63 is a round angle, so that smoothness of coal falling during normal blockage can be balanced.
As shown in fig. 6 and 7, the driving assembly includes a power source 71, a rack 72 disposed on the outer circumference of the coal bucket 2, and a gear assembly drivingly connected to the power source 71, the gear assembly includes at least three gears 73 simultaneously engaged with the rack 72, and the at least three gears 73 are uniformly distributed. The uniform distribution of the gears 73 can help to limit the position of the coal hopper 2, wherein three gears 73 are optimally distributed in a 'pin' shape, the support of three points is most stable, and the gears 73 tightly engage with the racks 72 to enable the coal hopper 2, the coal bunker 1 and the coal dropping pipe 3 to be positioned on a concentric circle, so that the rotation is more stable. The rack 72 and gear 73 assembly is covered with a protective cover 74, so that the rack 72 and gear 73 assembly is protected from being interfered by foreign objects to influence normal operation, and meanwhile, the safety of maintenance personnel can be ensured.
The power source 71 is mounted on the fixing seat 91, the power source 71 can adopt a mode of combining an integrated driving motor and a speed reducer, and the power source 71 can drive the coal hopper 2 to rotate bidirectionally through transmission. When only one power source 71 is arranged, one gear 73 in the gear 73 assembly is sleeved at the output end of the power source 71; when the power source 71 is provided in plural, one gear 73 is provided for each power source 71, but the number of power sources 71 does not exceed the number of gears 73. The gear 73 connected with the power source 71 is arranged at the output end of the power source 71, and the gears 73 not connected with the power source 71 are arranged on the fixed seat 91 through rotating shafts. One fixing seat 91 is provided with no more than one power source 71, and one fixing seat 91 is provided with no more than one gear 73.
As shown in fig. 8, the support assembly includes a first support frame 81 disposed on the coal bunker 1, a second support frame 82 disposed on the coal bunker 2, and a pulley 83 assembly, where the pulley 83 assembly includes at least three pulleys 83 capable of rotating, the at least three pulleys 83 are uniformly distributed, and the at least three pulleys 83 are disposed between the first support frame 81 and the second support frame 82, in this embodiment, a rotation center line of the pulley 83 extends in an up-and-down direction, which is equivalent to transferring an internal bearing to the outside, ensuring that the bearing is not blocked by internal coal dust, and changing sliding friction between the coal bunker 1 and the coal bunker 2 into rolling friction. The uniform distribution of the pulleys 83 can help to limit the position of the coal hopper 2, wherein three pulleys 83 are optimally distributed in a shape like a Chinese character 'pin', the support of three points is most stable, and the coal hopper 2, the coal bunker 1 and the coal dropping pipe 3 are positioned on a concentric circle, so that the rotation is more stable. The first support frame 81 is an annular support ring and is integrally arranged with the coal bunker 1 to reinforce the strength of the coal bunker 1 body, and the second support frame 82 is an annular support ring and is integrally arranged with the coal bunker 2 to reinforce the strength of the coal bunker 2 body. The pulley 83 is fixedly arranged on the second support frame 82 and abuts against the side face of the first support frame 81, and the rolling surface of the side face of the pulley 83 is attached to the side face of the first support frame 81. In the present embodiment, the first support frame 81 and the upper projection 511 are shown as having the same structure.
As shown in fig. 4, the outer peripheral surface of the lower portion of the coal hopper 2 has a step surface 23, the step surface 23 surrounds the outer peripheral surface of the coal hopper 2, the lower portion of the coal hopper 2 is inserted into the upper end of the coal dropping pipe 3, and the step surface 23 of the coal hopper 2 is located on the upper end surface of the coal dropping pipe 3. An annular bearing 93 is arranged between the step surface 23 of the coal hopper 2 and the upper end surface of the coal dropping pipe 3, so that the two parts relatively perform rolling friction motion. Bears all the weight of the coal hopper 2, and plays the roles of reducing abrasion and resistance.
The working principle of the present embodiment is specifically described as follows:
as shown in fig. 1 and 8, raw coal falls from a coal bunker 1 to a coal bunker 2, a driving assembly periodically drives the coal bunker 2 to rotate in the forward and reverse directions, the raw coal is broken and conveyed to a coal dropping pipe 3 along with a scraper assembly rotating along with the coal bunker 2 in the coal bunker 2, the raw coal falls to a coal feeder 4 through the coal dropping pipe 3, a sealing structure can effectively prevent raw coal particles or dust from escaping, a gear 73 and a pulley 83 which are arranged in a shape like a Chinese character 'pin' can effectively stabilize the rotation of the coal bunker 2 in the rotating process of the coal bunker 2, and the coal bunker 2 is prevented from shaking when rotating.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The coal feeding device comprises a coal bunker, a coal hopper and a coal dropping pipe, wherein the coal bunker is communicated with the upper part of the coal hopper, the coal dropping pipe is communicated with the lower part of the coal hopper, and the coal feeding device is characterized in that: the coal bunker and the coal dropping pipe are fixedly arranged, the coal hopper is rotatably arranged relative to the coal bunker and the coal dropping pipe, the lower part of the coal bunker extends into the upper part of the coal hopper,
the coal feeding device also comprises a sealing structure arranged between the lower part of the coal bunker and the upper part of the coal bunker, a supporting component arranged between the coal bunker and the upper part of the coal bunker, a driving component arranged between the coal dropping pipe and the lower part of the coal bunker and a scraper component arranged in the coal bunker,
the scraper subassembly include the polylith scraper, the scraper have connect the limit, with the scraper limit that is relative on connection limit and connect the connection limit with the knife face on scraper limit, the connection limit connect the internal face of coal scuttle on, work as the coal scuttle rotatory, the coal scuttle drive the synchronous rotation of scraper.
2. The coal feeding apparatus of claim 1, wherein: the length direction of the scraper spirally extends along the axial direction of the coal hopper.
3. The coal feeding apparatus of claim 1, wherein: the upper end of the scraper extends into the coal bunker, and the upper end of the scraper is provided with a notch matched with the shape of the part of the coal bunker extending into the coal bunker.
4. The coal feeding apparatus of claim 1, wherein: the sealing structure comprises a first sealing part formed by the part of the coal bunker extending into the coal hopper from the lower part of the coal bunker and a second sealing part formed by the upper part of the coal hopper positioned outside the first sealing part, and the first sealing part and the second sealing part are matched to form a sealing area.
5. The coal feeding apparatus according to claim 4, wherein: the sealing structure further comprises a sealing element, and the sealing element is arranged in the sealing area.
6. The coal feeding apparatus according to claim 4, wherein: the lower end of the first sealing part forms a lower convex part, the lower convex part extends towards the second sealing part, and/or the upper end of the first sealing part forms an upper convex part, the upper convex part extends towards the second sealing part, and/or the upper part of the coal bucket protrudes towards the inner side to form a second sealing part.
7. The coal feeding apparatus of claim 1, wherein: the coal hopper is driven to rotate by the driving assembly, the driving assembly comprises a power source, a rack arranged on the periphery of the coal hopper and a gear assembly in transmission connection with the power source, the gear assembly comprises at least three gears meshed with the rack simultaneously, and the at least three gears are uniformly distributed.
8. The coal feeding apparatus of claim 7, wherein: when only one power source is arranged, one of the at least three gears is sleeved at the output end of the power source; when the power source is provided with a plurality of power sources, the number of the power sources is not more than the number of the gears, and each power source is correspondingly provided with one gear.
9. The coal feeding apparatus of claim 1, wherein: the supporting component comprises a first supporting frame arranged on the coal bunker, a second supporting frame arranged on the coal bunker and pulley components, each pulley component comprises at least three pulleys capable of rotating automatically, the at least three pulleys are uniformly distributed, and the at least three pulleys are arranged between the first supporting frame and the second supporting frame.
10. The coal feeding apparatus of claim 1, wherein: the coal hopper is characterized in that the peripheral surface of the lower part of the coal hopper is provided with a step surface, the lower part of the coal hopper is inserted into the upper end of the coal dropping pipe, the step surface of the coal hopper is positioned on the upper end surface of the coal dropping pipe, and an annular bearing is arranged between the step surface of the coal hopper and the upper end surface of the coal dropping pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458187.XA CN113154434A (en) | 2021-04-27 | 2021-04-27 | Coal feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458187.XA CN113154434A (en) | 2021-04-27 | 2021-04-27 | Coal feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154434A true CN113154434A (en) | 2021-07-23 |
Family
ID=76871228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110458187.XA Pending CN113154434A (en) | 2021-04-27 | 2021-04-27 | Coal feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113154434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115402656A (en) * | 2022-10-10 | 2022-11-29 | 太原锅炉集团有限公司 | Construction method of coal feeding blockage clearing mechanism in coal feeding hopper of circulating fluidized bed boiler |
-
2021
- 2021-04-27 CN CN202110458187.XA patent/CN113154434A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115402656A (en) * | 2022-10-10 | 2022-11-29 | 太原锅炉集团有限公司 | Construction method of coal feeding blockage clearing mechanism in coal feeding hopper of circulating fluidized bed boiler |
| CN115402656B (en) * | 2022-10-10 | 2024-03-15 | 太原锅炉集团有限公司 | Construction method of coal feeding blockage removing mechanism in coal feeding hopper of circulating fluidized bed boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113154434A (en) | Coal feeding device | |
| CN214700778U (en) | Coal feeding device | |
| CN214745876U (en) | Coal feeder capable of breaking arch and clearing blockage | |
| CN214700777U (en) | Coal feeding device capable of preventing dislocation driving | |
| CN214617844U (en) | Coal feeding device with dustproof sealing structure | |
| CN210473206U (en) | High-efficient waste fitting discharging of hydraulic engineering | |
| CN113154042A (en) | Coal feeding device with dustproof sealing structure | |
| CN111069204A (en) | Scraper seat external inclination scraper vortex blockage removing machine | |
| CN215810243U (en) | Material scattering device of cement kiln | |
| CN112357617A (en) | Scraper feeder | |
| CN201473017U (en) | Disc feeder | |
| CN105461359B (en) | Tower bottom scraper of high tower granulation device | |
| CN207844545U (en) | A kind of waste material crushing conveyor | |
| CN208775673U (en) | A kind of screw conveyor | |
| CN214609856U (en) | Discharge hopper suitable for inclined and horizontal spiral | |
| CN211643285U (en) | Rotary blockage cleaning machine for fixing scraper from outside of storage bin | |
| CN215587388U (en) | Rotary supporting structure for blockage removing machine | |
| CN219384018U (en) | Pneumatic conveying storage mechanism based on grease decolorization | |
| CN108529241A (en) | A kind of automatic throwing powder device | |
| CN211679169U (en) | Scraper seat external inclination scraper vortex blockage removing machine | |
| CN220431290U (en) | Automatic coal cleaning device | |
| CN220018173U (en) | Elephant trunk and rotary hearth furnace loading attachment with clear stifled device | |
| CN218154301U (en) | Novel cone cylinder type pipeline loosening machine | |
| CN212245095U (en) | Coal cleaning device for tail roller of rubber belt conveyor | |
| CN219602151U (en) | Raw coal hopper anti-blocking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |