CN114560230A - Secondary coal feeding device suitable for narrow space - Google Patents
Secondary coal feeding device suitable for narrow space Download PDFInfo
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- CN114560230A CN114560230A CN202210087435.9A CN202210087435A CN114560230A CN 114560230 A CN114560230 A CN 114560230A CN 202210087435 A CN202210087435 A CN 202210087435A CN 114560230 A CN114560230 A CN 114560230A
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- 238000004891 communication Methods 0.000 claims description 42
- 238000012544 monitoring process Methods 0.000 claims description 22
- 230000005855 radiation Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 12
- 238000005303 weighing Methods 0.000 description 10
- 230000009466 transformation Effects 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
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- 238000002360 preparation method Methods 0.000 description 4
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/30—Belts or like endless load-carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/04—Bulk
- B65G2201/045—Sand, soil and mineral ore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0208—Control or detection relating to the transported articles
- B65G2203/0258—Weight of the article
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Abstract
The invention discloses a secondary coal feeding device suitable for a narrow space, and relates to the technical field of coal feeding devices; the coal feeding device comprises a controller, a first coal feeder, a frame body and a second coal feeder arranged on the frame body, wherein the second coal feeder is positioned above the first coal feeder, a discharge hole of the second coal feeder is connected and communicated with a discharge hole of the first coal feeder, the controller is electrically connected with and communicates with the first coal feeder, and the controller is electrically connected with and communicates with the second coal feeder; the coal feeding distance of the coal feeder is prolonged under the influence of obstacles through the controller, the first coal feeder, the second coal feeder and the like.
Description
Technical Field
The invention relates to the technical field of coal feeding devices, in particular to a secondary coal feeding device suitable for a narrow space.
Background
With the requirements of poor quality of fire coal and deep peak regulation of a unit being continuously strengthened in recent years, the hazards of coal fluffing and coal breakage of a coal bunker are increasingly aggravated, and although some measures for preventing coal fluffing are taken, the problems are not fundamentally solved, so that the load is often blocked, and the economy and the deep peak regulation flexibility of the unit are seriously influenced. The small sub-bin transformation of the coal bin is imperative. In the transformation process, because the inclination angle of the coal bunker changes, the center of a coal dropping port of the coal feeder shifts, and the center distance of the coal feeder needs to be prolonged. But due to the limitation of the equipment installed on site, the coal feeder cannot be lengthened at will. Namely, the installed equipment is objectively formed as an obstacle, and the technical problem of extending the center distance of the coal feeder cannot be solved by adopting the technical scheme of directly extending the length of the existing coal feeder.
The name of the authorization notice number is CN 203581699U, and the device is used for reforming coal fluffing of a coal feeder, and solves the technical problem of cleaning the coal fluffing.
The application publication number is CN 113680709A, the name is a coal and gangue sorting system and an identification method, and the technical problem of coal and gangue sorting is solved.
The prior art does not realize how to solve the technical problem of avoiding obstacles and prolonging the coal feeding distance of a coal feeder.
Problems and considerations in the prior art:
how to solve the technical problem of prolonging the coal feeding distance of the coal feeder under the influence of obstacles.
Disclosure of Invention
The invention aims to solve the technical problem of providing a secondary coal feeding device suitable for a narrow space.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides a second grade coal feeding device suitable for narrow space includes controller, first coal feeder, support body and the second coal feeder of setting on the support body, the second coal feeder is located first coal feeder top, and the discharge gate of second coal feeder is connected with the discharge gate of first coal feeder and is switched on, the controller is connected and communicates with first coal feeder electricity, and the controller is connected and communicates with second coal feeder electricity.
The further technical scheme is as follows: the coal feeding device comprises a controller, a first metering device and a second metering device, wherein the controller is used for controlling the first coal feeder to feed coal, the first metering device is used for obtaining the coal feeding amount of the first coal feeder, the second metering device is used for obtaining the coal feeding amount of the second coal feeder, the first metering device is electrically connected with the controller and is in one-way communication, and the second metering device is electrically connected with the controller and is in one-way communication.
The further technical scheme is as follows: the first and second metering devices form a metering device which is a weigher for obtaining weight data of the coal or a coal flow detector for obtaining flow data of the coal.
The further technical scheme is as follows: the coal flow detector is a radiation detector or an image scanner.
The further technical scheme is as follows: the coal quantity difference monitoring system comprises a controller, a first metering device, a second metering device, a first metering information acquisition module, a second metering information acquisition module, a coal quantity difference calculation module, a monitoring module and an alarm information generation module, wherein the monitoring module runs on the controller, the monitoring module is a program module and is used for the first metering device to acquire first metering information of coal quantity on the first coal feeder and send the first metering information to the controller, the second metering device acquires second metering information of coal quantity on the second coal feeder and sends the second metering information to the controller, the controller acquires the first metering information and the second metering information, calculates a difference value between the first metering information and the second metering information and acquires a coal quantity difference, divides the coal quantity difference by the first metering information and acquires a coal quantity difference percentage, and generates alarm information and sends the alarm information when the coal quantity difference percentage exceeds an alarm threshold.
The further technical scheme is as follows: the monitoring module is also used for sending alarm information to the first metering device and the second metering device respectively by the controller, the first metering device obtains the alarm information and stops the machine, and the second metering device obtains the alarm information and stops the machine; the alarm threshold value is 3% -7%.
The further technical scheme is as follows: the terminal is used for receiving alarm information and is connected with and communicated with the controller; and the monitoring module is also used for sending the alarm information to the terminal by the controller.
The further technical scheme is as follows: the terminal is a fixed terminal, and the controller is electrically connected with the fixed terminal and communicates with the fixed terminal.
The further technical scheme is as follows: the fixed terminal is an alarm device or a desktop computer.
The further technical scheme is as follows: the coal feeder is characterized by further comprising a connecting pipe, one end of the connecting pipe is connected with a discharge hole of the second coal feeder, and the other end of the connecting pipe is connected with a discharge hole of the first coal feeder.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in:
the utility model provides a second grade coal feeding device suitable for narrow space includes controller, first coal feeder, support body and the second coal feeder of setting on the support body, the second coal feeder is located first coal feeder top, and the discharge gate of second coal feeder is connected with the discharge gate of first coal feeder and is switched on, the controller is connected and communicates with first coal feeder electricity, and the controller is connected and communicates with second coal feeder electricity. According to the technical scheme, the coal feeding distance of the coal feeder is prolonged under the influence of obstacles through the controller, the first coal feeder, the second coal feeder and the like.
The coal feeding device comprises a controller, a first metering device and a second metering device, wherein the controller is used for controlling the first coal feeder to feed coal, the first metering device is used for obtaining the coal feeding amount of the first coal feeder, the second metering device is used for obtaining the coal feeding amount of the second coal feeder, the first metering device is electrically connected with the controller and is in one-way communication, and the second metering device is electrically connected with the controller and is in one-way communication. Based on the hardware scheme, the coal quantity difference percentage exceeding the alarm threshold value can be further found in time, alarm information is generated and sent to the outside, early warning can be carried out in time, and safety is better.
Through the monitoring module, when the coal quantity difference percentage exceeds an alarm threshold value, alarm information is generated and sent, early warning is timely carried out, and the safety is better.
Through monitoring module, the controller sends alarm information to first metering device and second metering device respectively and in time shuts down, and the security is better.
Through the monitoring module, the controller sends alarm information to the terminal so as to remind managers of corresponding processing in time.
See detailed description of the preferred embodiments.
Drawings
FIG. 1 is a structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic block diagram of embodiment 1 of the present invention;
FIG. 3 is a schematic block diagram of embodiment 2 of the present invention;
fig. 4 is a schematic block diagram of embodiment 3 of the present invention.
Wherein: the coal feeder comprises a first coal feeder 1, a second coal feeder 2, a connecting pipe 3, a first barrier 4 and a second barrier 5.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited to the specific embodiments disclosed below.
Example 1:
as shown in fig. 1 and 2, the invention discloses a two-stage coal feeding device suitable for a narrow space, which comprises a controller, a first coal feeder 1, a frame body, a second coal feeder 2 fixed on the frame body, a connecting pipe 3, a first metering device for obtaining the coal amount on the first coal feeder 1, a second metering device for obtaining the coal amount on the second coal feeder 2, a terminal for receiving alarm information, a wired communication device and a monitoring module running on the controller, wherein the second coal feeder 2 is positioned above the first coal feeder 1, one end of the connecting pipe 3 is connected and communicated with a discharge port of the second coal feeder 2, and the other end of the connecting pipe 3 is connected and communicated with a discharge port of the first coal feeder 1.
The first and second metering devices form a metering device which is a weigher for obtaining weight data of the coal.
As shown in fig. 2, the first metering device is a first weighing machine, the second metering device is a second weighing machine, the first metering device is electrically connected with the controller and is in one-way communication, the second metering device is electrically connected with the controller and is in one-way communication, the controller is electrically connected with the first coal feeder 1 and is in communication, the controller is electrically connected with the second coal feeder 2 and is in communication, and the controller is electrically connected with the wired communication device and is in communication. The terminal is a buzzer, and the buzzer is in wired connection and communication with the wired communication device.
The monitoring module is a program module and used for the first metering device to obtain first metering information of the coal feeding amount of the first coal feeder 1 and send the first metering information to the controller, the second metering device to obtain second metering information of the coal feeding amount of the second coal feeder 2 and send the second metering information to the controller, the controller to obtain the first metering information and the second metering information, calculate a difference value between the first metering information and the second metering information and obtain a coal amount difference, divide the coal amount difference by the first metering information and obtain a coal amount difference percentage, when the coal amount difference percentage exceeds an alarm threshold, alarm information is generated and sent to the first metering device, the second metering device and a buzzer respectively, the first metering device obtains the alarm information and stops the machine, the second metering device obtains the alarm information and stops the machine, and the buzzer obtains the alarm information and buzzes to remind a manager to process in time.
The alarm threshold is 5%.
The controller is a single chip microcomputer, and the controller, the coal feeder, the weighing device, the buzzer, the wired communication device and the corresponding communication connection technology are not described in detail in the prior art.
Example 1 description of use:
as shown in FIG. 1, the preparation work is carried out before the use, and a feeding port of the second coal feeder 2 is connected and communicated with a discharging port of the coal bunker by using a pipeline.
And starting two coal feeders to start working.
The method comprises the steps that a first metering device obtains first metering information of coal loading of a first coal feeder 1 and sends the first metering information to a controller, a second metering device obtains second metering information of coal loading of a second coal feeder 2 and sends the second metering information to the controller, the controller obtains the first metering information and the second metering information, the difference value between the first metering information and the second metering information is calculated, a coal quantity difference is obtained, the coal quantity difference is divided by the first metering information, a coal quantity difference percentage is obtained, when the coal quantity difference percentage exceeds an alarm threshold value of 5%, alarm information is generated and sent to the first metering device, the second metering device and a terminal respectively, the first metering device obtains alarm information and stops, the second metering device obtains the alarm information and stops, and a buzzer obtains the alarm information, buzzes and reminds a manager to process in time.
The technical scheme solves the technical problem of prolonging the coal feeding distance of the coal feeder under the influence of the first barrier 4 and the second barrier 5.
Two feeder linkage work, the safety in utilization is good. When the coal conveying amount error between the two coal feeders is large, the machine is stopped in time, and the safety is good.
Example 2:
As shown in fig. 3, the invention discloses a two-stage coal feeding device suitable for a narrow space, which comprises a controller, a first coal feeder 1, a frame body, a second coal feeder 2 fixed on the frame body, a connecting pipe 3, a first metering device for obtaining the coal feeding amount of the first coal feeder 1, a second metering device for obtaining the coal feeding amount of the second coal feeder 2, a terminal for receiving alarm information, a wired communication device and a monitoring module operated on the controller, wherein the second coal feeder 2 is positioned above the first coal feeder 1, one end of the connecting pipe 3 is connected and conducted with a discharge port of the second coal feeder 2, and the other end of the connecting pipe 3 is connected and conducted with a discharge port of the first coal feeder 1.
The first and second metering devices form a metering device which is a weigher for obtaining weight data of the coal.
As shown in fig. 3, the first metering device is a first weighing machine, the second metering device is a second weighing machine, the first metering device is electrically connected with the controller and is in one-way communication, the second metering device is electrically connected with the controller and is in one-way communication, the controller is electrically connected with the first coal feeder 1 and is in communication, the controller is electrically connected with the second coal feeder 2 and is in communication, and the controller is electrically connected with the wired communication device and is in communication. The terminal is a desktop computer, the controller is electrically connected with the wired communication device, and the desktop computer is electrically connected with and communicates with the wired communication device.
The monitoring module is a program module and is used for the first metering device to obtain first metering information of the coal feeding amount of the first coal feeder 1 and send the first metering information to the controller, the second metering device to obtain second metering information of the coal feeding amount of the second coal feeder 2 and send the second metering information to the controller, the controller to obtain the first metering information and the second metering information, a difference value between the first metering information and the second metering information is calculated and a coal amount difference is obtained, the coal amount difference is divided by the first metering information and a coal amount difference percentage is obtained, when the coal amount difference percentage exceeds an alarm threshold value, alarm information is generated and sent to the first metering device, the second metering device and the desktop computer respectively, the first metering device obtains the alarm information and stops, the second metering device obtains the alarm information and stops, and the desktop computer obtains the alarm information and reminds a manager to process the alarm information in time.
The alarm threshold is 5%.
The controller is a single chip microcomputer, and the controller, the coal feeder, the weighing device, the desktop computer, the wired communication device and the corresponding communication connection technology are not described in detail in the prior art.
Example 2 description of use:
the preparation work before using uses, uses the pipeline to be connected the pan feeding mouth of second feeder 2 and the discharge gate of coal bunker and switches on.
And starting two coal feeders to start working.
The method comprises the steps that a first metering device obtains first metering information of the coal amount on a first coal feeder 1 and sends the first metering information to a controller, a second metering device obtains second metering information of the coal amount on a second coal feeder 2 and sends the second metering information to the controller, the controller obtains the first metering information and the second metering information, the difference value between the first metering information and the second metering information is calculated and the coal amount difference is obtained, the coal amount difference is divided by the first metering information and the coal amount difference percentage is obtained, when the coal amount difference percentage exceeds an alarm threshold value of 5%, alarm information is generated and sent to the first metering device, the second metering device and a desktop computer respectively, the first metering device obtains alarm information and stops the computer, the second metering device obtains the alarm information and stops the computer, and the desktop computer obtains the alarm information and reminds managers of timely processing.
The technical scheme solves the technical problem of prolonging the coal feeding distance of the coal feeder under the influence of obstacles.
Two feeder linkage work, the safety in utilization is good. When the coal conveying amount error between the two coal feeders is large, the coal feeder is stopped in time, and the safety is good.
Example 3:
As shown in fig. 4, the invention discloses a two-stage coal feeding device suitable for a narrow space, which comprises a controller, a first coal feeder 1, a frame body, a second coal feeder 2 fixed on the frame body, a connecting pipe 3, a first metering device used for obtaining the coal feeding amount of the first coal feeder 1, a second metering device used for obtaining the coal feeding amount of the second coal feeder 2, a terminal used for receiving alarm information, a wired communication device and a monitoring module operated on the controller, wherein the second coal feeder 2 is positioned above the first coal feeder 1, one end of the connecting pipe 3 is connected and conducted with a discharge hole of the second coal feeder 2, and the other end of the connecting pipe 3 is connected and conducted with a discharge hole of the first coal feeder 1.
The first and second metering devices form a metering device which is a weigher for obtaining weight data of the coal.
As shown in fig. 4, the first metering device is a first weighing machine, the second metering device is a second weighing machine, the first metering device is electrically connected with the controller and is in one-way communication, the second metering device is electrically connected with the controller and is in one-way communication, the controller is electrically connected with the first coal feeder 1 and is in communication, the controller is electrically connected with the second coal feeder 2 and is in communication, and the controller is electrically connected with the wired communication device and is in communication. The terminal is a warning lamp, the controller is electrically connected with the wired communication device, and the warning lamp is electrically connected with the wired communication device and communicates.
The monitoring module is a program module and is used for the first metering device to obtain first metering information of the coal feeding amount of the first coal feeder 1 and send the first metering information to the controller, the second metering device to obtain second metering information of the coal feeding amount of the second coal feeder 2 and send the second metering information to the controller, the controller to obtain the first metering information and the second metering information, a difference value between the first metering information and the second metering information is calculated and a coal amount difference is obtained, the coal amount difference is divided by the first metering information and a coal amount difference percentage is obtained, when the coal amount difference percentage exceeds an alarm threshold value, alarm information is generated and sent to the first metering device, the second metering device and the alarm lamp respectively, the first metering device obtains the alarm information and stops, the second metering device obtains the alarm information and stops, and the alarm lamp alarms and reminds a manager to process in time after obtaining the alarm information.
The alarm threshold is 5%.
The controller is a single chip microcomputer, and the controller, the coal feeder, the weighing device, the warning lamp, the wired communication device and the corresponding communication connection technology are not described in detail in the prior art.
Example 3 description of use:
the preparation work before using uses, uses the pipeline to be connected the pan feeding mouth of second feeder 2 and the discharge gate of coal bunker and switches on.
And starting two coal feeders to work.
The method comprises the steps that a first metering device obtains first metering information of the coal feeding amount of a first coal feeder 1 and sends the first metering information to a controller, a second metering device obtains second metering information of the coal feeding amount of a second coal feeder 2 and sends the second metering information to the controller, the controller obtains the first metering information and the second metering information, the difference value of the first metering information and the second metering information is calculated and the coal amount difference is obtained, the coal amount difference is divided by the first metering information and the coal amount difference percentage is obtained, when the coal amount difference percentage exceeds an alarm threshold value of 5%, alarm information is generated and sent to the first metering device, the second metering device and an alarm lamp respectively, the first metering device obtains alarm information and stops, the second metering device obtains the alarm information and stops, and the alarm lamp alarms and reminds a manager to process in time after obtaining the alarm information.
The technical scheme solves the technical problem of prolonging the coal feeding distance of the coal feeder under the influence of obstacles.
Two feeder linkage work, the safety in utilization is good. When the coal conveying amount error between the two coal feeders is large, the machine is stopped in time, and the safety is good.
With respect to the above embodiments, the metering device may also be replaced with a coal flow detector for obtaining flow data of coal, the coal flow detector being a radiation detection instrument or an image scanning instrument.
The authorization notice number is CN 210603446U, and the name is a coal flow rate detection device, the technical scheme is a coal flow rate detector for obtaining flow rate data of coal, and the coal flow rate detector itself is not described in detail for the prior art.
The authorization notice number is CN 108737790B, the name is a coal flow monitoring method based on image information acquisition, the technical scheme is a technical scheme for obtaining flow data of coal, and the corresponding coal flow detector itself is not described in detail for the prior art.
The alarm threshold may also be set to 3% relative to the above embodiment.
The alarm threshold may also be set to 7% relative to the above embodiment.
Compared with the above embodiment, the alarm device can also be a voice broadcast device such as an MP3 player.
The conception of the application is as follows:
with the requirements of poor quality of fire coal and deep peak regulation of a unit being continuously strengthened in recent years, the hazards of coal fluffing and coal breakage of a coal bunker are increasingly aggravated, and although some measures for preventing coal fluffing are taken, the problems are not fundamentally solved, so that the load is often blocked, and the economy and the deep peak regulation flexibility of the unit are seriously influenced. The small sub-bin transformation of the coal bin is imperative. In the transformation process, because the inclination angle of the coal bunker changes, the center of a coal dropping port of the coal feeder shifts, and the center distance of the coal feeder needs to be prolonged. But due to the limitation of the field installed equipment, the secondary coal feeder is creatively proposed. The coal feeder is arranged in a staggered manner from top to bottom, so that the purpose is achieved.
Technical contribution of the present application:
the utility model provides a second grade coal feeding device suitable for narrow space, the problem of wanting to solve is feeder long distance coal conveying under the narrow space, aims at realizing above-mentioned purpose through arranging two feeder stagger from top to bottom.
Above the original coal feeder, a foundation platform is arranged, which is used for foundation support of the new coal feeder. The platform is a frame body for mounting the coal feeder.
The new coal feeder is arranged on the upper base platform, and the coal outlet of the new coal feeder is superposed with the central line of the coal inlet of the original coal feeder.
And constructing new operation logic. The new coal feeder and the original coal feeder adopt linkage control, and the trip of any one coal feeder can cause the trip protection of the other coal feeder.
Two coal feeders are respectively provided with a set of metering device for weighing the coal. The counting adopts a redundancy mode, and the error exceeds 5 percent to trigger the alarm with large deviation.
Description of the technical solution:
and arranging a foundation platform above the original coal feeder, wherein the foundation platform is used for foundation support of the new coal feeder, the new coal feeder is arranged on the foundation platform above, and a coal outlet of the new coal feeder is superposed with the central line of a coal inlet of the original coal feeder. And secondary coal feeding is realized.
The application field is as follows:
the invention can be applied to the field of thermal power plants, and solves the problem of central line offset of the coal dropping port of the coal feeder in the bin-dividing and bin-dividing transformation.
After the application runs secretly for a period of time, the feedback of field technicians has the advantages that:
the coal feeding distance of the coal feeder is prolonged under the influence of obstacles through the controller, the first coal feeder, the second coal feeder and the like.
Based on first metering device and second metering device to further discover in time that the coal volume difference percentage exceeds the alarm threshold value, and then generate alarm information and send outward, can in time early warning, the security is better.
When the coal quantity difference percentage exceeds the alarm threshold, alarm information is generated and sent, early warning is carried out in time, and the safety is better.
The controller sends alarm information to the first metering device and the second metering device respectively and stops in time, and the security is better.
The controller sends the alarm information to the terminal so as to remind the manager of corresponding processing in time.
At present, the technical scheme of the invention has been subjected to a pilot plant test, namely a small-scale test of the product before large-scale mass production; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of products for formal production for industrialization (including intellectual property risk early warning research) has been started.
Claims (10)
1. The utility model provides a second grade coal feeding device suitable for narrow space which characterized in that: the coal feeding device comprises a controller, a first coal feeder, a support body and a second coal feeder arranged on the support body, wherein the second coal feeder is positioned above the first coal feeder, a discharge hole of the second coal feeder is connected and communicated with a discharge hole of the first coal feeder, the controller is electrically connected with the first coal feeder and is communicated with the first coal feeder, and the controller is electrically connected with the second coal feeder and is communicated with the second coal feeder.
2. The secondary coal feeding device for narrow space as claimed in claim 1, wherein: the coal feeding device comprises a controller, a first metering device and a second metering device, wherein the controller is used for controlling the first coal feeder to feed coal, the first metering device is used for obtaining the coal feeding amount of the first coal feeder, the second metering device is used for obtaining the coal feeding amount of the second coal feeder, the first metering device is electrically connected with the controller and is in one-way communication, and the second metering device is electrically connected with the controller and is in one-way communication.
3. A secondary coal feeding apparatus adapted to a narrow space according to claim 2, wherein: the first and second metering devices form a metering device which is a weigher for obtaining weight data of the coal or a coal flow detector for obtaining flow data of the coal.
4. The secondary coal supply device suitable for the narrow space according to claim 3, wherein: the coal flow detector is a radiation detector or an image scanner.
5. A secondary coal feeding apparatus adapted to a narrow space according to claim 2, wherein: the coal quantity difference monitoring system comprises a controller, a first metering device, a second metering device, a first metering information acquisition module, a second metering information acquisition module, a coal quantity difference calculation module, a monitoring module and an alarm information generation module, wherein the monitoring module runs on the controller, the monitoring module is a program module and is used for the first metering device to acquire first metering information of coal quantity on the first coal feeder and send the first metering information to the controller, the second metering device acquires second metering information of coal quantity on the second coal feeder and sends the second metering information to the controller, the controller acquires the first metering information and the second metering information, calculates a difference value between the first metering information and the second metering information and acquires a coal quantity difference, divides the coal quantity difference by the first metering information and acquires a coal quantity difference percentage, and generates alarm information and sends the alarm information when the coal quantity difference percentage exceeds an alarm threshold.
6. The secondary coal feeding device for narrow space as claimed in claim 5, wherein: the monitoring module is also used for sending alarm information to the first metering device and the second metering device respectively by the controller, the first metering device obtains the alarm information and stops the machine, and the second metering device obtains the alarm information and stops the machine; the alarm threshold value is 3% -7%.
7. The secondary coal feeding device for narrow space as claimed in claim 5, wherein: the alarm system also comprises a terminal for receiving alarm information, wherein the terminal is connected with and communicates with the controller; and the monitoring module is also used for sending the alarm information to the terminal by the controller.
8. The secondary coal feeding device for narrow space as claimed in claim 7, wherein: the terminal is a fixed terminal, and the controller is electrically connected with and communicates with the fixed terminal.
9. The secondary coal feeding device for narrow space as claimed in claim 8, wherein: the fixed terminal is an alarm device or a desktop computer.
10. The secondary coal feeder for narrow spaces as claimed in claim 1, wherein: the coal feeder is characterized by further comprising a connecting pipe, one end of the connecting pipe is connected with a discharge hole of the second coal feeder, and the other end of the connecting pipe is connected with a discharge hole of the first coal feeder.
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