CN213066076U - Anti-blocking alarm system for coal feeding of boiler - Google Patents
Anti-blocking alarm system for coal feeding of boiler Download PDFInfo
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- CN213066076U CN213066076U CN202021503600.7U CN202021503600U CN213066076U CN 213066076 U CN213066076 U CN 213066076U CN 202021503600 U CN202021503600 U CN 202021503600U CN 213066076 U CN213066076 U CN 213066076U
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Abstract
The utility model relates to a boiler coal feeding anti-jamming alarm system, belonging to the technical field of tobacco equipment detection, which comprises a micro switch, a controller, an alarm, a reset switch, a frequency converter and a grate motor; the microswitch and the reset switch are connected with the input end of the controller, a transmission element of the microswitch is contacted with the side surface of a driving gear of the coal feeding device, the output end of the controller is connected with the alarm and the frequency converter, and the frequency converter is connected with the grate motor; the utility model discloses utilize detecting element to send out the police dispatch newspaper when taking place the card and die, the boiler steam output that avoids the coal-breaking to cause is not enough, supplies vapour pressure drop scheduling problem.
Description
Technical Field
The utility model belongs to the technical field of tobacco equipment detects, specific theory relates to a dead alarm system of boiler coal feeding anti-sticking.
Background
The coal feeding device can not run down the condition of the dead stuck coal of the inner roller in the long-term use process, and the coal gangue causing the dead stuck coal of the roller is naturally associated, so that the content of the large-particle coal gangue is less, and the addition of a crusher is unrealistic. The roller is stuck to cause coal removal on a boiler grate, so that the problems of insufficient boiler steam yield, reduced steam supply pressure and the like are easily caused, and in severe cases, the steam energy supply quality of the boiler is even influenced. Therefore, it is necessary to design a boiler coal feeding anti-jamming alarm system capable of detecting jamming of a boiler drum.
Disclosure of Invention
In order to overcome the problem that exists among the background art, the utility model provides a dead alarm system of boiler coal feeding anti-sticking can utilize detecting element to send out the police dispatch newspaper when taking place the card and die, avoids the boiler steam output that the coal removal caused not enough, supplies vapour pressure drop scheduling problem.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the anti-blocking alarm system for coal feeding of the boiler comprises a microswitch 1, a controller 2, an alarm 3, a reset switch 4, a frequency converter 5 and a grate motor 6. The coal feeding device is characterized in that the microswitch 1 and the reset switch 4 are connected with the input end of the controller 2, a transmission element of the microswitch 1 is contacted with the side surface of a driving gear 7 of the coal feeding device, the output end of the controller 2 is connected with the alarm 3 and the frequency converter 5, and the frequency converter 5 is connected with the grate motor 6.
Preferably, the microswitch 1 is arranged on an angle iron 9 through a stainless steel sheet 8, and the angle iron 9 is welded with the shell of the coal feeding device.
The utility model has the advantages that:
the utility model discloses utilize detecting element's high reliability, take place to block at the boiler drum and send out the police dispatch newspaper when dead, avoid the boiler steam output that the coal-breaking caused not enough, supply vapour pressure drop scheduling problem. The fire grate is timely reminded of finding problems for the furnace driver, the fire grate can be quickly stopped, manual cleaning is carried out, and faults are eliminated.
Drawings
Fig. 1 is a control block diagram of the present invention;
FIG. 2 is a schematic view of the installation of the present invention;
fig. 3 is a control circuit diagram of the present invention.
In the figure, 1-a microswitch, 2-a controller, 3-an alarm, 4-a reset switch, 5-a frequency converter, 6-a fire grate motor, 7-a driving gear, 8-a stainless steel sheet, 9-an angle iron and 10-a driven gear.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in fig. 1-3, the anti-seize alarm system for coal feeding of a boiler comprises a microswitch 1, a controller 2, an alarm 3, a reset switch 4, a frequency converter 5 and a grate motor 6. The microswitch 1 and the reset switch 4 are connected with the input end of the controller 2, the RTAIX LXW5-11G2 microswitch 1 is adopted, the controller 2 adopts a PLC, the energy consumption is low, the reliability is high, the anti-interference capability is strong, abundant I/O clamping pieces are provided, and the maintenance is convenient. The transmission element of the microswitch 1 is contacted with the side surface of the driving gear 7 of the coal feeding device, when the driving gear 7 moves leftwards, the transmission element of the microswitch 1 is pushed to act, and current is generated to provide signal input for the controller 2. The output end of the controller 2 is connected with the alarm 3 and the frequency converter 5, and the frequency converter 5 is connected with the grate motor 6. When detecting that the card is dead, the controller 2 controls the alarm 3 to make sound and light alarm to prompt the driver to process in time. When the driver maintains the equipment, the reset switch 4 is manually pressed to control the alarm 3 to stop alarming. If the fault is not eliminated after the reset, the PLC controls the alarm 3 to alarm again after delaying for five minutes. When the phenomenon of jamming is still left after delaying for two minutes and is not handled by people, the PLC controls the grate motor 6 to stop rotating through the frequency converter 5.
Preferably, the microswitch 1 is arranged on the angle iron 9 through a stainless steel sheet 8, and the stainless steel sheet 8 is provided with holes according to the installation size of the microswitch 1. The angle iron 9 is welded with the shell of the coal feeding device, and a waist-shaped hole is formed in the side face of the angle iron 9, so that the adjustment is convenient. The control elements of each boiler are respectively arranged on respective operation platforms in a one-to-one mode, so that the judgment and the operation of furnace operators are facilitated.
The utility model discloses a working process:
during normal work, the driving gear 7 is tightly pressed on the driven gear 10 under the action of spring pressure, and the driving gear 7 drives the driven gear 10 to run through chain transmission. When burning coal, the driven gear 10 can not move because of being stuck, and the driving gear 7 moves left and right in the axial direction under the transmission of the chain, and forms the repeated separation and inosculation with the driven gear 10.
The transmission element of the microswitch 1 is contacted with the side surface of the driving gear 7 of the coal feeding device, and when the driving gear 7 moves leftwards, the transmission element of the microswitch 1 is pushed to act, so that the movable contact point of the microswitch 1 is matched with the fixed contact point. The PLC detects a current signal of the circuit connection, controls the alarm 3 to make sound and light alarm, and the operator manually stops the operation of the boiler grate and processes the signals in time. When the driver maintains the equipment, the reset switch 4 is manually pressed, a signal is transmitted to the PLC, and the alarm 3 is controlled to stop alarming. After resetting, the fault is not eliminated, and after delaying for five minutes, the PLC controls the alarm 3 to give an alarm again. When the phenomenon of jamming is still left after delaying for two minutes and is not handled by people, the PLC controls the grate motor 6 to stop rotating through the frequency converter 5.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides a dead alarm system of boiler coal feeding anti-sticking which characterized in that: the anti-blocking alarm system for coal feeding of the boiler comprises a microswitch (1), a controller (2), an alarm (3), a reset switch (4), a frequency converter (5) and a grate motor (6); the coal feeding device is characterized in that the microswitch (1) and the reset switch (4) are connected with the input end of the controller (2), a transmission element of the microswitch (1) is contacted with the side surface of a driving gear (7) of the coal feeding device, the output end of the controller (2) is connected with the alarm (3) and the frequency converter (5), and the frequency converter (5) is connected with the grate motor (6).
2. The boiler coal feeding anti-jamming alarm system according to claim 1, characterized in that: the microswitch (1) is arranged on an angle iron (9) through a stainless steel sheet (8), and the angle iron (9) is welded with a shell of the coal feeding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021503600.7U CN213066076U (en) | 2020-07-27 | 2020-07-27 | Anti-blocking alarm system for coal feeding of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021503600.7U CN213066076U (en) | 2020-07-27 | 2020-07-27 | Anti-blocking alarm system for coal feeding of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213066076U true CN213066076U (en) | 2021-04-27 |
Family
ID=75577715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021503600.7U Active CN213066076U (en) | 2020-07-27 | 2020-07-27 | Anti-blocking alarm system for coal feeding of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213066076U (en) |
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2020
- 2020-07-27 CN CN202021503600.7U patent/CN213066076U/en active Active
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