CN219791498U - Boiler feeder with metal detection function - Google Patents
Boiler feeder with metal detection function Download PDFInfo
- Publication number
- CN219791498U CN219791498U CN202321013364.4U CN202321013364U CN219791498U CN 219791498 U CN219791498 U CN 219791498U CN 202321013364 U CN202321013364 U CN 202321013364U CN 219791498 U CN219791498 U CN 219791498U
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- Prior art keywords
- coal
- metal
- dropping cylinder
- metal detection
- feeder
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- 239000002184 metal Substances 0.000 title claims abstract description 102
- 238000001514 detection method Methods 0.000 title claims abstract description 56
- 239000003245 coal Substances 0.000 claims abstract description 118
- 239000011152 fibreglass Substances 0.000 claims abstract description 6
- 239000000919 ceramic Substances 0.000 claims abstract description 5
- 230000003993 interaction Effects 0.000 abstract description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 10
- 235000017491 Bambusa tulda Nutrition 0.000 description 10
- 241001330002 Bambuseae Species 0.000 description 10
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 10
- 239000011425 bamboo Substances 0.000 description 10
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model relates to a boiler coal feeder with a metal detection function, which is characterized in that a coal dropping cylinder with original metal texture is improved to an outer layer which adopts glass fiber reinforced plastic, and an inner layer which adopts a structure of a wear-resistant ceramic plate, so that a corresponding environment is provided for metal object detection in the coal dropping cylinder, meanwhile, a metal detection system is additionally arranged on the outer wall of the coal dropping cylinder, when metal objects pass through the coal dropping cylinder, whether the metal objects exist in the coal dropping cylinder or not is identified through the interaction between vortex generated on the metal objects and current in the metal detection system, and further a unit DCS system is informed to stop the work of a raw coal bin and the coal feeder and give an alarm to prompt staff to remove the metal objects as soon as possible.
Description
Technical Field
The utility model belongs to the technical field of boiler coal feeder systems, and particularly relates to a boiler coal feeder with a metal detection function.
Background
Raw coal in a coal storage bin enters a coal feeder through a coal gate, and is continuously and uniformly conveyed into the coal mill by a conveying and metering adhesive tape in the coal feeder, an electronic weighing device is arranged below the conveying and metering adhesive tape, the device mainly comprises a high-precision electronic belt scale, a weighing sensor generates an electric signal proportional to the weight of the coal and a belt speed signal detected by a speed sensor, and meanwhile, the electric signal and the belt speed signal are fed into an integrator, and instantaneous flow and accumulated quantity are obtained after integration.
Therefore, the boiler coal feeder is one of important equipment of the coal-fired unit, when the coal feeder operates, the coal feeder is often blocked by metal objects entering from the raw coal bin, the accident of the coal feeder is stopped, if the accident cannot be cleared timely, the load-reducing accident of the generator unit can be caused, and the boiler coal feeder capable of identifying the metal objects and clearing timely does not exist at present.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides a boiler coal feeder with a metal detection function, which can identify metal objects in a coal drop bin and give an alarm to a unit DCS system so as to inform staff of timely cleaning.
The utility model solves the technical problems by adopting the following technical scheme:
the utility model provides a boiler feeder that possesses metal detection function, includes former coal bunker, coal fall section of thick bamboo, feeder and metal detection system, and wherein former coal bunker installs at the top of coal fall section of thick bamboo, and the bottom of former coal bunker is equipped with metal baffle, and former coal bunker is used for storing coal, and the below of coal fall section of thick bamboo is equipped with the feeder for carry the coal of whereabouts, and coal fall section of thick bamboo outer wall is equipped with metal detection system, and metal detection system is arranged in detecting the inside whereabouts of coal fall section of thick bamboo whether there is the metal object.
And the coal dropping cylinder is cylindrical, the outer wall of the coal dropping cylinder is made of glass fiber reinforced plastic, and the lining of the coal dropping cylinder is made of a wear-resistant ceramic plate.
And a metal object observation window is arranged below the outer wall of the coal dropping cylinder and is used for observing whether metal objects exist in dropped coal or not, or after the metal object observation window is opened, the metal objects in the coal dropping cylinder are removed.
And the metal detection system comprises a plurality of metal detection coils and a metal detection host, wherein the metal detection coils are arranged on the outer wall of the coal dropping cylinder and used for detecting whether metal objects exist in the coal dropping cylinder, the metal detection coils are respectively connected with the metal detection host and used for sending detection signals, the metal detection host is used for sending signals for detecting the metal objects to a unit DCS system, the unit DCS system alarms according to the signals for transmitting the metal objects, and meanwhile, the work of the coal feeder and the coal dropping bin is stopped.
The utility model has the advantages and positive effects that:
according to the utility model, the original coal dropping cylinder with metal texture is improved into a structure that an outer layer adopts glass fiber reinforced plastic, an inner layer adopts a wear-resistant ceramic plate, a corresponding environment is provided for metal object detection in the coal dropping cylinder, meanwhile, a metal detection system is additionally arranged on the outer wall of the coal dropping cylinder, when metal objects drop in the coal dropping cylinder, whether the coal dropping cylinder has metal objects or not is identified through the interaction of vortex generated on the metal objects and current in the metal detection system, and then a DCS (distributed control system) of a unit is informed to stop the work of an original coal bin and a coal feeder and send an alarm, so that staff is prompted to remove the metal objects as soon as possible.
Drawings
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a top view of the coal chute of the present utility model;
FIG. 3 is a block diagram of the coal chute of the present utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The utility model provides a boiler feeder that possesses metal detection function, as shown in fig. 1, including former coal bunker, a coal section of thick bamboo that falls, feeder and metal detection system, wherein former coal bunker installs at the top of a coal section of thick bamboo that falls, and the bottom of former coal bunker is equipped with metal baffle, and former coal bunker is used for storing coal, and the below of a coal section of thick bamboo that falls is equipped with the feeder for carry the coal that falls, a coal section of thick bamboo outer wall that falls is equipped with metal detection system, and metal detection system is arranged in detecting the inside coal that falls of a coal section of thick bamboo that falls whether there is the metal object.
As shown in fig. 2, the coal dropping cylinder is cylindrical, the outer wall of the coal dropping cylinder is made of glass fiber reinforced plastic, the outer surface of the glass fiber reinforced plastic can ensure the strength of the outer surface of the coal dropping cylinder, and the inner lining of the coal dropping cylinder is made of a wear-resistant ceramic plate.
As shown in fig. 3, a metal object observation window is installed below the outer wall of the coal dropping cylinder, and is used for observing whether metal objects exist in dropped coal, or after the metal object observation window is opened, the metal objects in the coal dropping cylinder are removed, and meanwhile, the metal object observation window can be opened and is used for removing the metal objects in the coal dropping cylinder.
The metal detection system comprises two metal detection coils and a metal detection host, wherein the two metal detection coils are arranged on the outer wall of the coal dropping cylinder, one of the two metal detection coils is arranged at the upper end of the outer wall of the coal dropping cylinder, the other one of the two metal detection coils is arranged at the lower end of the outer wall of the coal dropping cylinder, the metal detection coils are used for detecting whether metal objects exist in the coal dropping cylinder, the two metal detection coils are respectively connected with the metal detection host and used for sending detection signals, the metal detection host is used for sending signals for detecting the metal objects to a unit DCS, the unit DCS gives an alarm according to the signals for transmitting the metal objects, and meanwhile, the coal feeder and the coal dropping bin are stopped.
The application method of the utility model comprises the following steps:
the metal structure below the raw coal bin is connected with an electric baffle, the electric baffle is continuously opened and closed to convey coal in the raw coal bin to a coal feeder through a coal dropping cylinder, in the coal dropping process, if a metal object appears, whether the coal dropping cylinder has a metal object or not is identified through the interaction of vortex generated on the metal object and current in a metal detection system, when the metal detection coil detects the metal object, a signal for detecting the metal object is sent to a metal detection host computer, the metal detection coil host computer transmits the signal to a unit DCS system, and the unit DCS system stops the working states of the raw coal bin and the coal feeder and gives an alarm to prompt staff to remove the metal object as soon as possible.
It should be emphasized that the examples described herein are illustrative rather than limiting, and therefore the utility model includes, but is not limited to, the examples described in the detailed description, as other embodiments derived from the technical solutions of the utility model by a person skilled in the art are equally within the scope of the utility model.
Claims (4)
1. A boiler feeder that possesses metal detection function, its characterized in that: the coal feeder comprises a raw coal bin, a coal dropping cylinder, a coal feeder and a metal detection system, wherein the raw coal bin is arranged at the top of the coal dropping cylinder, a metal baffle is arranged at the bottom of the raw coal bin, the raw coal bin is used for storing coal, the coal feeder is arranged below the coal dropping cylinder and used for conveying dropped coal, the metal detection system is arranged on the outer wall of the coal dropping cylinder and used for detecting whether metal objects exist in the dropped coal inside the coal dropping cylinder.
2. The boiler coal feeder with metal detection function according to claim 1, wherein: the coal dropping cylinder is cylindrical, the outer wall of the coal dropping cylinder is made of glass fiber reinforced plastic, and the lining of the coal dropping cylinder is made of a wear-resistant ceramic plate.
3. The boiler coal feeder with metal detection function according to claim 2, characterized in that: and a metal object observation window is arranged below the outer wall of the coal dropping cylinder and is used for observing whether metal objects exist in dropped coal or not, or after the metal object observation window is opened, the metal objects in the coal dropping cylinder are removed.
4. The boiler coal feeder with metal detection function according to claim 1, wherein: the metal detection system comprises a plurality of metal detection coils and a metal detection host, wherein the metal detection coils are arranged on the outer wall of the coal dropping cylinder and used for detecting whether metal objects exist in the coal dropping cylinder, the metal detection coils are respectively connected with the metal detection host and used for sending detection signals, the metal detection host is used for sending signals for detecting the metal objects to a unit DCS system, the unit DCS system alarms according to the signals for transmitting the signals for detecting the metal objects, and meanwhile, the work of the coal feeder and the coal dropping bin is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321013364.4U CN219791498U (en) | 2023-04-28 | 2023-04-28 | Boiler feeder with metal detection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321013364.4U CN219791498U (en) | 2023-04-28 | 2023-04-28 | Boiler feeder with metal detection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219791498U true CN219791498U (en) | 2023-10-03 |
Family
ID=88180783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321013364.4U Active CN219791498U (en) | 2023-04-28 | 2023-04-28 | Boiler feeder with metal detection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219791498U (en) |
-
2023
- 2023-04-28 CN CN202321013364.4U patent/CN219791498U/en active Active
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