CN115957851A - Coal feeder deironing equipment of steam power plant - Google Patents
Coal feeder deironing equipment of steam power plant Download PDFInfo
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- CN115957851A CN115957851A CN202211668575.1A CN202211668575A CN115957851A CN 115957851 A CN115957851 A CN 115957851A CN 202211668575 A CN202211668575 A CN 202211668575A CN 115957851 A CN115957851 A CN 115957851A
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Abstract
The invention provides iron removing equipment for a coal feeder of a thermal power plant, and relates to the technical field of iron removing equipment. The coal conveying device comprises a device main body, wherein an iron removing cavity is arranged in the device main body, a crushing structure, an iron removing structure, a coal conveying structure and an iron conveying structure are arranged in the iron removing cavity, the iron removing structure comprises a herringbone flow distribution plate connected with the device main body and a first conveying belt with a smooth conveying surface, the first conveying belt is provided with a plurality of magnetic strips which are evenly spaced, the first conveying belt comprises a horizontal part, a vertical part and an inclined part which are sequentially connected end to end, the horizontal part is aligned with the crushing structure, the inclined part is aligned with the herringbone flow distribution plate, the distance between the herringbone flow distribution plate on the upstream side of the first conveying belt and the surface of the inclined part is larger than the distance between the herringbone flow distribution plate on the downstream side of the first conveying belt and the surface of the inclined part, and the coal block and iron removing device have the beneficial effects of better iron removing efficiency.
Description
Technical Field
The invention relates to the technical field of iron removal equipment, in particular to iron removal equipment for a coal feeder of a thermal power plant.
Background
The coal feeder is arranged between a raw coal hopper and the coal mill, the coal feeding amount is directly adapted to the load of a boiler in a direct-blowing pulverizing system, the types of the coal feeder are various, and the coal feeder has two types of volumetric type and gravity type according to the structural characteristics and the working principle.
The inside iron sheet that often has of coal pile of hot power plant coal, the iron nail, the small material of iron such as screw, seriously influence the safe operation of coal pulverizer behind these ironware gets into the coal pulverizer, the feeder that has the deironing function for detaching the iron plate has the current application number CN200720040580.2 now, this feeder is including the casing of an internally mounted conveyer belt, set up feed inlet and discharge gate on the casing of upper place and preceding below behind the conveyer belt respectively, the discharge gate is close to the preceding baffle of casing, the hypomere inboard of baffle in the front is close to discharge gate department and installs a deironing device, ferromagnetic impurity in the coal can be better got rid of. However, the inventor finds that the iron removing function of the iron removing device gradually decreases along with the increase of iron blocks and iron chips accumulated on the surface, and the conveyor belt needs to be stopped at intervals, so that the iron removing device is taken out for cleaning, and the iron removing efficiency is reduced.
Therefore, the prior art is in need of improvement.
Disclosure of Invention
The invention aims to provide iron removing equipment for a coal feeder of a thermal power plant, which can provide a corresponding solution for solving the problems in the prior art and has the beneficial effects of separating coal blocks from iron devices and having better iron removing efficiency.
The embodiment of the invention is realized by the following steps:
the embodiment of the application provides a feeder deironing equipment of steam power plant, including the equipment principal, be provided with the deironing cavity in the equipment principal, be provided with crushing structure, deironing structure, fortune coal structure and fortune indisputable structure in the deironing cavity, the deironing structure include with herringbone flow distribution plate and the transport smooth first transmission band in surface that the equipment principal is connected, first transmission band is provided with a plurality of evenly spaced magnetism strips, first transmission band includes horizontal part, vertical portion and the rake that head and the tail connected gradually, the horizontal part with crushing structure aligns, the rake with herringbone flow distribution plate aligns, is located first transmission band upper reaches one side herringbone flow distribution plate with the distance on rake surface is greater than and is located first transmission band low reaches one side herringbone flow distribution plate with the distance on rake surface.
In some embodiments of the present invention, a rake is disposed in the iron removing chamber to evenly distribute the coal blocks on the horizontal portion.
In some embodiments of the present invention, the comb rake is provided with three.
In some embodiments of the present invention, the coal conveying structure includes a second driving roller and a second conveying belt sleeved on the second driving roller, and the second conveying belt is located right below the vertical portion.
In some embodiments of the present invention, the above-mentioned iron conveying structure comprises a third driving roller and a third conveying belt sleeved on the third driving roller, and the third conveying belt is located right below the inclined part.
In some embodiments of the present invention, the above-described pulverizing structure comprises a first pulverizing roller and a second pulverizing roller.
In some embodiments of the present invention, the first conveyor belt and the two sides of the inclined portion are provided with strip-shaped plates, and the strip-shaped plates are provided with wedge-shaped baffles.
In some embodiments of the invention, the chevron manifold on the upstream side of the first belt is spaced 1 cm from the inclined section surface and the chevron manifold on the downstream side of the first belt is in contact with the inclined section surface.
Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:
the coal feeder deironing device of the thermal power plant provided by the embodiment of the invention mainly comprises five parts, namely a device main body, a crushing structure, an deironing structure, a coal conveying structure and an iron conveying structure, wherein the device main body is used as a shell and provides installation positions for other parts, the crushing structure is used for crushing large coal blocks so as to facilitate combustion and utilization of the thermal power plant, the deironing structure is used for removing ironware in the coal blocks, the coal conveying structure is used for conveying away the coal blocks from which the ironware is removed, and the iron conveying structure is used for conveying away the ironware or iron slag separated from the coal blocks.
During the use workman pours coal into from the feed inlet at equipment main part top, and coal falls into crushing structure, is smashed into tiny coal cinder by first crushing roller and second crushing roller, makes things convenient for the combustion of thermal power plant to utilize. Broken tiny coal cinder falls on the horizontal part of first conveyer belt, and first conveyer belt drives the coal cinder and moves from a left side to the right side, and the coal cinder is combed when combing the harrow and is opened for the coal cinder is evenly distributed on first conveyer belt as far as possible, also makes things convenient for the magnetism strip to adsorb ironware (for example screw, iron sheet, iron ore etc.) in the coal cinder as far as possible. When the coal cinder moves to vertical portion, the coal cinder drops to the second transmission area of fortune coal structure from first transmission area on, and second driving roller and second transmission area will remove the coal cinder of ironware and transport to the equipment main part right side in the coal cinder transportation frame. The magnetic strips adsorb ironware and can not fall off until the ironware moves to the inclined part, when the ironware passes through the herringbone splitter plate of the inclined part, the ironware gradually moves towards two sides to gradually accumulate until the ironware falls onto a third transmission belt, the ironware is removed from a larger ironware when the ironware passes through the first herringbone splitter plate, the ironware is removed from a smaller ironware when the ironware passes through the second herringbone splitter plate, and the ironware on the first transmission belt is removed as much as possible. The third transmission roller and the third transmission belt transmit ironware to an ironware transmission frame on the left side of the equipment main body, and separation of the ironware and the coal briquettes is completed. The people word splitter constantly strikes off the ironware on the first conveying belt among the separation process, can not lead to the deironing function to descend gradually along with the use, more need not to shut down the clearance at an interval, and deironing efficiency is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic diagram of an internal structure of a coal feeder iron removal device of a thermal power plant according to an embodiment of the present invention;
FIG. 2 is a schematic view of a first conveyor belt provided in accordance with an embodiment of the invention;
fig. 3 is a schematic diagram of an inclined portion of a first conveyor belt according to an embodiment of the invention.
Icon: 1-equipment body, 101-iron removal chamber, 2-crushing structure, 201-first crushing roller, 202-second crushing roller, 3-iron removal structure, 301-first transmission belt, 3011-horizontal part, 3012-vertical part, 3013-inclined part, 302-herringbone splitter plate, 303-magnetic strip, 304-strip plate, 3041-wedge baffle, 4-coal conveying structure, 401-second transmission roller, 402-second transmission belt, 5-iron conveying structure, 501-third transmission roller, 502-third transmission belt and 6-rake.
Detailed Description
Examples
Referring to fig. 1 to 3, an iron removing apparatus for a coal feeder of a thermal power plant according to an embodiment of the present invention is shown, and the specific structure of the apparatus is as follows.
The coal feeder deironing device of the thermal power plant provided by the embodiment of the invention mainly comprises five parts, namely a device main body 1, a crushing structure 2, an deironing structure 3, a coal conveying structure 4 and an iron conveying structure 5, wherein the device main body 1 is used as a shell and provides installation positions for other parts, the crushing structure 2 is used for crushing large coal blocks so as to facilitate combustion and utilization of the thermal power plant, the deironing structure 3 is used for removing ironware in the coal blocks, the coal conveying structure 4 is used for conveying the coal blocks from which the ironware is removed, and the iron conveying structure 5 is used for conveying the ironware or iron slag separated from the coal blocks.
Referring to fig. 1, an apparatus main body 1 is a shell made of iron plate, a base horizontally placed on the ground is arranged at the bottom of the apparatus main body 1, an iron removal chamber 101 is arranged inside the apparatus main body 1, a cylindrical feeding port is arranged at the top of the apparatus main body 1, and the feeding port is communicated with the iron removal chamber 101, so that coal can conveniently enter the iron removal chamber 101.
Further, the crushing structure 2 mainly comprises a first crushing roller 201 and a second crushing roller 202, and both the first crushing roller 201 and the second crushing roller 202 are existing crushing devices and can be used for crushing coal blocks. The first crushing roller 201 and the second crushing roller 202 are arranged in the iron removal chamber, and the first crushing roller 201 and the second crushing roller 202 are positioned right below the feeding port.
The deironing structure 3 is composed of a first transmission belt 301, a herringbone shunting plate 302 and magnetic strips 303, and further comprises a first transmission roller, wherein the first transmission belt 301 is sleeved on the first transmission roller, as shown in fig. 1, the first transmission belt 301 is approximately in a right-angled triangle shape when viewed from the side, and comprises an upper horizontal part 3011, a right vertical part 3012 and a lower inclined part 3013.
Further, the rake 6 is similar to the prior art iron rake consisting of several steel bars, and there are gaps between the steel bars for the coal to pass through. The top ends of the three comb harrows 6 are welded with the inner wall of the equipment main body 1, the three comb harrows 6 are evenly spaced, and the bottom ends of the three comb harrows 6 are close to the right side of the horizontal part 3011. When the coal blocks pass through the comb harrow 6, the comb harrow 6 automatically combs and spreads the accumulated coal blocks evenly.
Referring to fig. 1 and 2, the magnetic strips 303 are strip-shaped magnets in the prior art, the magnetic strips 303 are installed inside the first conveying belt 301 or embedded in grooves on the surface of the first conveying belt 301, and the surface of the first conveying belt 301 is flat, so that the herringbone splitter plate 302 can conveniently scrape off an iron device.
Referring to fig. 1 and 3, the herringbone splitter plate 302 is a herringbone metal plate, the herringbone splitter plate 302 is welded and fixed to the inner wall of the apparatus main body 1 through a metal connecting rod, the tip of the herringbone splitter plate 302 is located in the middle of the inclined portion 3013 in the first conveyor belt 301, and the direction of the tip is inclined downward.
Further, as shown in fig. 1, fig. 2 and fig. 3, the strip-shaped plates 304 are fixedly connected with the inner wall of the apparatus main body 1 through a metal rod, two strip-shaped plates 304 are positioned at the left and right sides of the inclined portion 3013 in the first conveyor belt 301, the strip-shaped plates 304 are flush with and close to the first conveyor belt 301, a wedge-shaped baffle 3041 is fixed on the strip-shaped plates 304, one side of the wedge-shaped baffle 3041 is aligned with the edge of the strip-shaped plate 304, and the tip direction of the wedge-shaped baffle 3041 is opposite to the tip direction of the herringbone splitter plate 302. As shown in fig. 3, the arrow line indicates the moving path of the ironer, and the ironer is gradually divided to two sides by the herringbone dividing plate 302, falls downward when being extruded out of the first conveying belt 301, and is prevented from being attracted by the magnetic strips 303 and being newly sucked back into the first conveying belt 301 due to the blocking of the wedge-shaped baffle 3041.
As shown in fig. 1, the distance between the chevron-shaped splitter plate 302 located on the upstream side (relatively lower side) of the first conveyor belt 301 and the surface of the inclined portion 3013 is 1 cm, the chevron-shaped splitter plate 302 located on the downstream side (relatively upper side) of the first conveyor belt 301 is in surface contact with the inclined portion 3013, larger ironware is removed when passing through the first chevron-shaped splitter plate 302, smaller ironware is removed when passing through the second chevron-shaped splitter plate 302, and the ironware on the first conveyor belt 301 is removed as much as possible, so that the grading effect is good.
As shown in fig. 1, the coal transporting structure 4 and the iron transporting structure 5 are both transported by belts in the prior art, the coal transporting structure 4 is mainly composed of a second driving roller 401 and a second transmission belt 402, the second driving roller 401 can be provided with a plurality of belts, the second transmission belt 402 is sleeved on the second driving roller 401, and the second driving roller 401 can drive the second transmission belt 402 to move after rotating, so as to drive an object on the second transmission belt 402 to move. The iron conveying structure 5 mainly comprises a third transmission roller 501 and a third transmission belt 502, the third transmission roller 501 can be multiple, the third transmission belt 502 is sleeved on the third transmission roller 501, and the third transmission roller 501 can drive the third transmission belt 502 to move after rotating, so as to drive an object on the third transmission belt 502 to move.
The implementation principle of the iron removing equipment of the coal feeder of the thermal power plant provided by the embodiment of the invention is as follows:
during the use workman pours coal into from the feed inlet at equipment main part 1 top, and coal falls into crushing structure 2, is broken into tiny coal cinder by first crushing roller 201 and second crushing roller 202, makes things convenient for the combustion utilization of steam power plant. The broken fine coal blocks fall on the horizontal portion 3011 of the first conveying belt 301, the first conveying belt 301 drives the coal blocks to move from left to right, the coal blocks are combed and spread when passing through the combing rake 6, so that the coal blocks are uniformly distributed on the first conveying belt 301 as much as possible, and the magnetic strips 303 are convenient to adsorb ironware (such as screws, iron sheets, iron ores and the like) in the coal blocks as much as possible. When the coal block moves to the vertical portion 3012, the coal block drops from the first conveyor belt 301 onto the second conveyor belt 402 of the coal conveying structure 4, and the second conveyor roller 401 and the second conveyor belt 402 convey the coal block from which ironware is removed into the coal block conveying frame on the right side of the apparatus main body 1. The magnetic strips 303 adsorb ironware and cannot fall off until the ironware moves to the inclined portion 3013, when the ironware passes through the herringbone shunting plates 302 of the inclined portion 3013, the ironware gradually moves towards two sides and gradually accumulates until the ironware falls onto the third conveying belt 502 due to the blocking of the herringbone shunting plates 302, the larger ironware is removed when the ironware passes through the first herringbone shunting plate 302, the smaller ironware is removed when the ironware passes through the second herringbone shunting plate 302, and the ironware on the first conveying belt 301 is removed as much as possible. The third driving roller 501 and the third conveying belt 502 convey ironware into an ironware conveying frame on the left side of the apparatus main body 1, and separation of ironware and coal briquettes is completed. The people word splitter plate 302 constantly scrapes the ironware on first transmission band 301 in the separation process, can not lead to the deironing function to descend gradually along with the use, more need not to shut down the clearance at interval a period of time, and deironing efficiency is higher.
In summary, the embodiment of the invention provides the coal feeder deironing device of the thermal power plant, which has the beneficial effects of separating coal blocks from iron devices and having better deironing efficiency.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The coal feeder iron removing equipment for the thermal power plant is characterized by comprising an equipment main body, wherein an iron removing cavity is arranged in the equipment main body, a crushing structure, an iron removing structure, a coal conveying structure and an iron conveying structure are arranged in the iron removing cavity, the iron removing structure comprises a herringbone flow distribution plate and a first conveying belt, the herringbone flow distribution plate is connected with the equipment main body, the conveying surface of the first conveying belt is flat, a plurality of magnetic strips are uniformly spaced on the first conveying belt, the first conveying belt comprises a horizontal part, a vertical part and an inclined part, the horizontal part is sequentially connected with the vertical part and the inclined part from head to tail, the horizontal part is aligned with the crushing structure, the inclined part is aligned with the herringbone flow distribution plate, and the distance between the herringbone flow distribution plate on one side of the upstream of the first conveying belt and the surface of the inclined part is larger than the distance between the herringbone flow distribution plate on one side of the downstream of the first conveying belt and the surface of the inclined part.
2. The coal feeder iron removal equipment of the thermal power plant as recited in claim 1, wherein a rake is disposed within the iron removal chamber to evenly distribute the coal lumps on the horizontal portion.
3. The coal feeder iron removal equipment of the thermal power plant as recited in claim 2, wherein there are three comb rakes.
4. The coal feeder deironing device of the thermal power plant as claimed in claim 1, wherein the coal conveying structure includes a second driving roller and a second conveyor belt fitted over the second driving roller, the second conveyor belt being located directly below the vertical portion.
5. The coal feeder iron removal equipment of the thermal power plant as claimed in claim 4, wherein said iron conveying structure comprises a third driving roller and a third conveyor belt sleeved on said third driving roller, and said third conveyor belt is located right below said inclined portion.
6. The coal feeder iron removal equipment of the thermal power plant as recited in claim 1, wherein the pulverizing structure comprises a first pulverizing roller and a second pulverizing roller.
7. The coal feeder iron removal equipment of the thermal power plant as claimed in claim 1, wherein a strip is disposed on both sides of the first conveyor belt and the inclined portion, and a wedge-shaped baffle is disposed on the strip.
8. The coal feeder iron removal equipment of a thermal power plant as claimed in any one of claims 1 to 7, wherein said chevron splitter plate on the upstream side of said first conveyor belt is at a distance of 1 cm from said inclined portion surface, and said chevron splitter plate on the downstream side of said first conveyor belt is in contact with said inclined portion surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211668575.1A CN115957851B (en) | 2022-12-24 | 2022-12-24 | Coal feeder deironing equipment of steam power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211668575.1A CN115957851B (en) | 2022-12-24 | 2022-12-24 | Coal feeder deironing equipment of steam power plant |
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| CN115957851A true CN115957851A (en) | 2023-04-14 |
| CN115957851B CN115957851B (en) | 2023-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211668575.1A Active CN115957851B (en) | 2022-12-24 | 2022-12-24 | Coal feeder deironing equipment of steam power plant |
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| CN214416683U (en) * | 2020-12-26 | 2021-10-19 | 邹平宏宇博鹰建材有限公司 | Automatic deironing device of conveyer belt |
| CN215964630U (en) * | 2021-09-27 | 2022-03-08 | 苏州合益兴工程建设服务有限公司 | Double-layer screening conveyor belt and integrated machine for recycling high-humidity waste soil |
| CN216630998U (en) * | 2021-12-17 | 2022-05-31 | 晋江江东机械有限公司 | Mineral waste crushing and iron removing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203140319U (en) * | 2013-04-03 | 2013-08-21 | 烟台港化肥物流有限公司 | Integrated device for sieving, crushing and purifying caking chemical fertilizers |
| CN203302293U (en) * | 2013-06-24 | 2013-11-27 | 杨李益 | Kernel-pushing and sectioning machine |
| CN105059871A (en) * | 2015-08-05 | 2015-11-18 | 中国大唐集团科学技术研究院有限公司 | Anti-coal-interruption coal feeder for thermal power plant |
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| CN211613059U (en) * | 2019-12-31 | 2020-10-02 | 三河天龙新型建材有限公司 | Slag powder iron remover |
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| CN215964630U (en) * | 2021-09-27 | 2022-03-08 | 苏州合益兴工程建设服务有限公司 | Double-layer screening conveyor belt and integrated machine for recycling high-humidity waste soil |
| CN216630998U (en) * | 2021-12-17 | 2022-05-31 | 晋江江东机械有限公司 | Mineral waste crushing and iron removing machine |
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| CN115957851B (en) | 2023-10-13 |
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