CN210504026U - Coal fired power plant prevents stifled former coal bunker - Google Patents
Coal fired power plant prevents stifled former coal bunker Download PDFInfo
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- CN210504026U CN210504026U CN201920588328.8U CN201920588328U CN210504026U CN 210504026 U CN210504026 U CN 210504026U CN 201920588328 U CN201920588328 U CN 201920588328U CN 210504026 U CN210504026 U CN 210504026U
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- bin body
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Abstract
The utility model discloses a coal-fired power plant prevents stifled raw coal storehouse, including upper bin body and lower bin body, the bottom of upper bin body and the top fixed connection of connecting cylinder, the bottom of connecting cylinder and the top fixed connection of lower bin body, the spout has been seted up at the top of upper bin body inner wall, spout and the slider sliding connection of connecting rod one side fixed mounting, the top fixed mounting of connecting rod has the handle of changeing, the bottom fixed mounting of connecting rod has the blade holder, one side fixed mounting of blade holder has the scraper; this coal fired power plant is novel prevents stifled former coal bunker, through the special design of the upper bin body of round platform shape and the lower storehouse body of hyperbola shape, the diameter of the body bottom of the storehouse from the upper bin is less than the diameter on storehouse body top down, consequently the coal cinder from the upper bin body transition to the lower storehouse body is the area of flow area by little grow, can obviously reduce the frictional resistance of coal scuttle lower part inner wall, makes the coal cinder change the whereabouts and flows.
Description
Technical Field
The utility model relates to a raw coal bunker, in particular to coal fired power plant prevents stifled raw coal bunker.
Background
The blockage of the raw coal bin of the coal-fired power plant can cause a series of problems such as coal break of a coal feeder, instability of combustion flame and the like because the coal cannot be automatically or continuously and uniformly fed. If the treatment is not good, the unit output can be reduced, and even if the coal blockage is serious, the boiler can be put out fire, so that the normal production is influenced. The size of the outlet of the raw coal hopper is small, the coal creeps downwards by the dead weight, and the outlet is easy to block; especially, under the conditions of overcast and rainy days and low temperature, the coal blockage phenomenon occurs more frequently. Therefore, the problem of coal blockage of the raw coal bunker becomes a main factor influencing the stable operation of part of thermal power plants, and how to take effective measures to solve the problem of coal blockage of the coal bunker becomes a key concern of the thermal power plants.
The prior common raw coal bunker has the shapes of a frustum pyramid, a cone and a hyperbola, and the raw coal bunkers with the three shapes have respective advantages and disadvantages. Most coal-fired power plants adopt a round-table coal hopper, but the friction resistance of the lower part of the round-table coal hopper to coal blocks is relatively large, so that coal blockage is easily caused under the condition of large water content of coal. The curve of the lower part of the hyperbolic raw coal hopper shrinks slowly, the included angle with the horizontal plane is larger, the frictional resistance of the inner wall of the lower part to coal is smaller, and the supporting force to the coal blocks on the upper part is smaller.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a coal fired power plant prevents stifled raw coal storehouse to the coal scuttle inner wall that provides in solving above-mentioned background art is great relatively to briquette frictional resistance, causes the problem of chute blockage easily under the big condition of coming coal moisture.
In order to achieve the above object, the utility model provides a following technical scheme: an anti-blocking raw coal bunker of a coal-fired power plant comprises an upper bunker body and a lower bunker body, and is characterized in that the bottom end of the upper bunker body is fixedly connected with the top end of a connecting cylinder, the bottom end of the connecting cylinder is fixedly connected with the top end of the lower bunker body, the top of the inner wall of the upper bunker body is provided with a chute, the chute is in sliding connection with a sliding block fixedly installed on one side of a connecting rod, the top end of the connecting rod is fixedly provided with a rotating handle, the bottom end of the connecting rod is fixedly provided with a cutter holder, one side of the cutter holder is fixedly provided with a scraper, the scraper is contacted with the inner wall of the upper bunker body, the outer side of the connecting cylinder is fixedly provided with a rotating motor, a transmission shaft of the rotating motor penetrates through the wall of the connecting cylinder and is fixedly connected with one end of a rotating shaft, the surface of the switch panel is provided with a rotating motor switch, and the rotating motor is electrically connected with the power supply through the rotating motor switch.
Preferably, the bottom end of the upper bin body and the top end of the connecting cylinder are fixedly provided with first connecting flanges, and the two first connecting flanges are fixedly connected through a fixing bolt.
Preferably, the top end of the lower bin body and the bottom end of the connecting cylinder are both fixedly provided with second connecting flanges, and the two second connecting flanges are fixedly connected through a fixing bolt.
Preferably, the upper bin body is of a circular truncated cone-shaped structure.
Preferably, the lower bin body is set to be of a hyperbolic-shaped structure.
Preferably, the diameter of the top end of the lower bin body is larger than the diameter of the bottom end of the upper bin body.
Preferably, a mechanical seal is fixedly installed at the joint of the transmission shaft of the rotating motor and the connecting cylinder.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a novel anti-blocking raw coal bunker of coal fired power plant, through the special design of the upper bin body of round platform shape and the lower bin body of hyperbola shape, the diameter from the bottom of the upper bin body is less than the diameter at the top of the lower bin body, therefore the coal cinder passes through from the upper bin body to the lower bin body and is the area that the flow area is from little grow, can obviously reduce the frictional resistance of the inner wall of coal scuttle lower part, in addition, make the coal cinder change the whereabouts and flows; the rotating shaft and the rotating paddle are conveniently driven by the arranged rotating motor to stir the raw coal in the connecting cylinder, so that the raw coal can be dredged in time when coal blockage occurs, and the coal breakage is avoided from influencing the safe and stable operation of the unit; the rotating handle is rotated to conveniently drive the scraper to clean the raw coal attached to the inner wall of the upper bin body, so that the waste of resources is reduced; the upper bin body is fixedly connected with the connecting cylinder through a first connecting flange, and the lower bin body is fixedly connected with the connecting cylinder through a second connecting flange, so that the upper bin body is convenient to mount and dismount.
Drawings
Fig. 1 is the utility model discloses in embodiment coal fired power plant prevents stifled former coal bunker's overall structure schematic diagram.
Fig. 2 is the utility model discloses in embodiment coal fired power plant prevents stifled raw coal storehouse's section structure sketch map.
In the figure: 1. an upper bin body; 2. a first connecting flange; 3. fixing the bolt; 4. a connecting cylinder; 5. a second connecting flange; 6. a lower bin body; 7. a chute; 8. a connecting rod; 9. turning a handle; 10. a slider; 11. a tool apron; 12. a scraper; 13. rotating the motor; 14. a rotating shaft; 15. rotating the paddle; 16. a switch panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work shall belong to the protection scope of the present invention.
Referring to fig. 1-2, the anti-blocking raw coal bunker of coal-fired power plant in the embodiment includes an upper bunker body 1 and a lower bunker body 6, the bottom end of the upper bunker body 1 is fixedly connected with the top end of a connecting cylinder 4, the bottom end of the connecting cylinder 4 is fixedly connected with the top end of the lower bunker body 6, the top of the inner wall of the upper bunker body 1 is provided with a chute 7, the chute 7 is slidably connected with a slide block 10 fixedly installed at one side of a connecting rod 8, the top end of the connecting rod 8 is fixedly provided with a rotating handle 9, the bottom end of the connecting rod 8 is fixedly provided with a cutter holder 11, one side of the cutter holder 11 is fixedly provided with a scraper 12, the scraper 12 is in contact with the inner wall of the upper bunker body 1, the outer side of the connecting cylinder 4 is fixedly provided with a rotating motor 13, a transmission shaft of the rotating motor 13 passes through the cylinder wall of the connecting cylinder 4 and is fixedly, the surface of the switch panel 16 is provided with a rotating motor switch, and the rotating motor 13 is electrically connected with the power supply through the rotating motor switch.
In this embodiment, the equal fixed mounting in the bottom of the upper bin body 1 and the top of connecting cylinder 4 has first flange 2, and two first flange 2 are convenient for dismantle and install the upper bin body 1 through fixing bolt 3 fixed connection.
In this embodiment, the top of the lower storehouse body 6 and the bottom of the connecting cylinder 4 are both fixedly provided with a second connecting flange 5, and the two second connecting flanges 5 are fixedly connected through a fixing bolt 3, so that the lower storehouse body 6 can be conveniently detached and installed.
In this embodiment, the upper silo body 1 is a circular truncated cone-shaped structure, which is convenient for the coal to slide.
In this embodiment, the lower bin body 6 is a hyperbolic structure, the curve is contracted slowly, the included angle with the horizontal plane is larger, the frictional resistance of the inner wall of the lower portion to the coal is smaller, and the supporting force to the coal briquette on the upper portion is smaller.
In this embodiment, the diameter of the top end of the lower bin body 6 is larger than the diameter of the bottom end of the upper bin body 1, and the coal block is transferred from the upper bin body 1 to the lower bin body 6, so that the flow area is changed from small to large, the frictional resistance of the inner wall of the lower part of the coal hopper can be obviously reduced, and the coal flow smoothly and stably slides to the coal feeding equipment.
In this embodiment, a mechanical seal is fixedly installed at the joint of the transmission shaft of the rotating motor 13 and the connecting cylinder 4.
When the coal blockage preventing device is used specifically, the upper bin body 1 is connected with the connecting cylinder 4 through the first connecting flange 2, the lower bin body 6 is connected with the connecting cylinder 4 through the second connecting flange 5, coal slides into the connecting cylinder 4 from the upper bin body 1, the rotating motor 13 is started through the rotating motor switch, the rotating shaft 14 and the rotating paddle 15 are driven to stir coal in the connecting cylinder 4 through the rotation of the transmission shaft of the rotating motor 13, the coal blockage preventing device can dredge in time when coal blockage occurs, and the coal blockage is prevented from affecting the safe and stable operation of a unit; then the coal slides down to the lower bin body 6 from the connecting cylinder 4, the coal block is transited from the upper bin body 1 to the lower bin body 6 to be an area with the flow area from small to large, the frictional resistance of the inner wall of the lower part of the coal hopper can be obviously reduced, and the coal flow smoothly and stably slides down to the coal feeding equipment.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a coal fired power plant prevents stifled raw coal storehouse, includes the upper bin body (1) and lower storehouse body (6), its characterized in that, go up the bottom of the storehouse body (1) and the top fixed connection of connecting cylinder (4), the bottom of connecting cylinder (4) and the top fixed connection of lower storehouse body (6), spout (7) have been seted up at the top of the upper bin body (1) inner wall, spout (7) and connecting rod (8) one side fixed mounting's slider (10) sliding connection, the top fixed mounting of connecting rod (8) has commentaries on classics (9), the bottom fixed mounting of connecting rod (8) has blade holder (11), one side fixed mounting of blade holder (11) has scraper (12), scraper (12) contact with the inner wall of the upper bin body (1), the outside fixed mounting of connecting cylinder (4) has rotation motor (13), the transmission shaft that rotates motor (13) passes the section of thick bamboo wall of thick bamboo of connecting cylinder (4) and with the inside axis of rotation of connecting cylinder (4) (14) The one end fixed connection of, the fixed surface of axis of rotation (14) installs a plurality of and rotates oar (15), the fixed flush mounting plate of switch panel (16) that is equipped with of outer wall of connecting cylinder (4), the surface of flush mounting plate of switch (16) is equipped with rotates motor switch, rotate motor (13) through rotating motor switch and power electric connection.
2. The anti-blocking raw coal bunker of a coal-fired power plant as claimed in claim 1, characterized in that the bottom end of the upper bunker body (1) and the top end of the connecting cylinder (4) are both fixedly provided with a first connecting flange (2), and the two first connecting flanges (2) are fixedly connected through a fixing bolt (3).
3. The anti-blocking raw coal bunker of a coal-fired power plant according to claim 1, characterized in that the top end of the lower bunker body (6) and the bottom end of the connecting cylinder (4) are both fixedly provided with second connecting flanges (5), and the two second connecting flanges (5) are fixedly connected through fixing bolts (3).
4. The anti-blocking raw coal bunker of coal-fired power plant according to claim 1, characterized in that the upper bunker body (1) is configured into a truncated cone-shaped structure.
5. The coal-fired power plant anti-blocking raw coal bunker of claim 1, characterized in that the lower bunker body (6) is arranged in a hyperbolic structure.
6. The anti-blocking raw coal bunker of coal-fired power plant according to claim 1, characterized in that the diameter of the top end of the lower bunker body (6) is larger than the diameter of the bottom end of the upper bunker body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588328.8U CN210504026U (en) | 2019-04-26 | 2019-04-26 | Coal fired power plant prevents stifled former coal bunker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920588328.8U CN210504026U (en) | 2019-04-26 | 2019-04-26 | Coal fired power plant prevents stifled former coal bunker |
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| CN210504026U true CN210504026U (en) | 2020-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807002A (en) * | 2020-08-19 | 2020-10-23 | 浙江浙能兰溪发电有限责任公司 | Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder |
-
2019
- 2019-04-26 CN CN201920588328.8U patent/CN210504026U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807002A (en) * | 2020-08-19 | 2020-10-23 | 浙江浙能兰溪发电有限责任公司 | Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder |
| CN111807002B (en) * | 2020-08-19 | 2022-06-21 | 浙江浙能兰溪发电有限责任公司 | Accumulated coal cleaning device, coal feeder and coal feeding port anti-blocking method of coal feeder |
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