CN221025979U - Alarm device for detecting coal blockage of coal dropping pipe - Google Patents
Alarm device for detecting coal blockage of coal dropping pipe Download PDFInfo
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- CN221025979U CN221025979U CN202323172460.6U CN202323172460U CN221025979U CN 221025979 U CN221025979 U CN 221025979U CN 202323172460 U CN202323172460 U CN 202323172460U CN 221025979 U CN221025979 U CN 221025979U
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- terminal
- coal
- intermediate relay
- dropping pipe
- alarm device
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- 239000003245 coal Substances 0.000 title claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 30
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to an alarm device for detecting coal blockage of a coal dropping pipe. At present, when the coal types change, particularly when the wet adhesion condition exists in the combustion high-water-content coal types, the coal dropping pipe is easy to be blocked, the coal is not timely found manually, large-area coal blocking is extremely easy to be caused, and accidents are enlarged. An alarm device for detecting coal blockage of a coal dropping pipe, which comprises the following components: QF1 switch, QF1 switch be connected with the 1 st terminal and the 2 nd terminal of 220V power supply wiring respectively, 220V power supply wiring be connected with the resistance-rotating material level switch soon, resistance-rotating material level switch soon on have SA1 control button, the 1 st terminal and the 2 nd terminal of 220V power supply wiring respectively with KZ1 intermediate relay, KZ3 intermediate relay and KZ5 intermediate relay parallel connection, KZ1 intermediate relay and HR pilot lamp series connection, KZ5 intermediate relay and HL pilot lamp series connection. The utility model is applied to the field of thermoelectric coal feeders.
Description
Technical Field
The utility model relates to an alarm device for detecting coal blockage of a coal dropping pipe.
Background
At present, the coal blocking detection device is not installed on the coal dropping pipe, after the boiler is put into operation, the coal blocking problem of the coal dropping pipe of the coal feeder is obvious, when the coal types change, particularly when the wet sticky condition exists on the high-water-content coal types for combustion, the coal dropping pipe is easy to block, the manual discovery is not timely, the large-area coal blocking is easy to be caused, and the accident is enlarged.
Disclosure of Invention
The utility model aims to provide an alarm device for detecting coal blockage of a coal dropping pipe.
The above object is achieved by the following technical scheme:
An alarm device for detecting coal blockage of a coal dropping pipe, which comprises the following components: QF1 switch, QF1 switch be connected with the 1 st terminal and the 2 nd terminal of 220V power supply wiring respectively, 220V power supply wiring be connected with the resistance-rotating material level switch soon, resistance-rotating material level switch soon on have SA1 control button, the 1 st terminal and the 2 nd terminal of 220V power supply wiring respectively with KZ1 intermediate relay, KZ3 intermediate relay and KZ5 intermediate relay parallel connection, KZ1 intermediate relay and HR pilot lamp series connection, KZ5 intermediate relay and HL pilot lamp series connection.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that the rotary material is a normally open point of a rotary resistance type material level switch, wherein the switch is provided with a No. 5 terminal and a No. 6 terminal, and the No. 5 terminal and the No. 6 terminal form the normally open point of the rotary resistance type material level switch.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that a No. 7 terminal and a No. 8 terminal are arranged on the KZ5 intermediate relay, and the No. 7 terminal and the No. 8 terminal form a normally open point of the KZ5 intermediate relay.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that a No. 9 terminal and a No. 10 terminal are arranged on the KZ1 intermediate relay, and the No. 9 terminal and the No. 10 terminal form a normally open point of the KZ1 intermediate relay.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that the KZ1 intermediate relay is provided with an 11-number terminal and a 12-number terminal, and the 11-number terminal and the 12-number terminal form a normally closed point of the KZ1 intermediate relay.
The utility model has the beneficial effects that:
1. According to the utility model, the rotary resistance type material level switch is arranged on the side observation door of the head coal dropping pipe of the belt conveyor, the installation position is required to be taken at a place without a coal dropping point when normal coal feeding is performed, and the blades of the rotary resistance type material level switch are penetrated into the coal dropping pipe by about 10 cm. The control box is equipped on site, the operation signal of the belt conveyor is taken as the precondition of the operation of the rotary resistance type material level switch, and the action feedback signal of the rotary resistance type material level switch is connected in parallel to the on-site pull-cord switch signal, when coal blockage occurs, coal flows are piled up from bottom to top, the blades of the rotary resistance type material level switch are extruded, the rotary resistance type material level switch acts and the belt conveyor is linked by the signal of the pull-cord switch, so that large-area coal blockage is prevented.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a wiring diagram of a pull switch.
Fig. 3 is a normally open point wiring diagram of the KZ5 intermediate relay.
Fig. 4 is a normally open point wiring diagram of the KZ1 intermediate relay.
Fig. 5 is a normally closed point wiring diagram of the KZ1 intermediate relay.
In the figure: QF1 is a power switch, KZ1, KZ3 and KZ5 are intermediate relays, SA1 is a control button, and HR and HL are indicator lamps;
Detailed Description
Examples
An alarm device for detecting coal blockage of a coal dropping pipe, which comprises the following components: QF1 switch, QF1 switch be connected with the 1 st terminal and the 2 nd terminal of 220V power supply wiring respectively, 220V power supply wiring be connected with the resistance-rotating material level switch soon, resistance-rotating material level switch soon on have SA1 control button, the 1 st terminal and the 2 nd terminal of 220V power supply wiring respectively with KZ1 intermediate relay, KZ3 intermediate relay and KZ5 intermediate relay parallel connection, KZ1 intermediate relay and HR pilot lamp series connection, KZ5 intermediate relay and HL pilot lamp series connection.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that the rotary material is a normally open point of a rotary resistance type material level switch, wherein the switch is provided with a No. 5 terminal and a No. 6 terminal, and the No. 5 terminal and the No. 6 terminal form the normally open point of the rotary resistance type material level switch.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that a No. 7 terminal and a No. 8 terminal are arranged on the KZ5 intermediate relay, and the No. 7 terminal and the No. 8 terminal form a normally open point of the KZ5 intermediate relay.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that a No. 9 terminal and a No. 10 terminal are arranged on the KZ1 intermediate relay, and the No. 9 terminal and the No. 10 terminal form a normally open point of the KZ1 intermediate relay.
The alarm device for detecting coal blockage of the coal dropping pipe is characterized in that the KZ1 intermediate relay is provided with an 11-number terminal and a 12-number terminal, and the 11-number terminal and the 12-number terminal form a normally closed point of the KZ1 intermediate relay.
Examples
The utility model provides a detect alarm device of coal pipe stifled coal, no. 1 terminal, no. 2 terminal are 220V power supply wiring, no. 5 terminal, no. 6 terminal are the normally open point of whirl resistance type material level switch, no. 7 terminal, no. 8 terminal are the normally open point of KZ5 intermediate relay, no. 9 terminal, no. 10 terminal are the normally open point of KZ1 intermediate relay, no. 11 terminal, no. 12 terminal are the normally closed point of KZ1 intermediate relay, no. 13 terminal, no. 14 terminal are the running signal normally open point of belt conveyer.
The working flow is as follows: the button SA1 is pressed to enable the rotary resistance type material level switch to be in a standby state, after the belt conveyor is normally started, the belt conveyor operation signal enables the No. 13 terminal and the No. 14 terminal to be conducted, the KZ5 coil of the intermediate relay is electrified, the No. 7 terminal and the No. 8 terminal are changed into a closed state from normally open points, the rotary resistance type material level switch is electrified to enter an operation state, and meanwhile an operation indicator lamp HL is lighted. When the coal blockage triggers the action of the rotary resistance type material level switch, the normally open point No. 5 terminal and the normally open point No. 6 terminal of the rotary resistance type material level switch are conducted, the coils of the intermediate relays KZ1 and KZ3 are electrified, so that the coal blockage indicator lamp HR is lightened, the normally closed point action of the KZ3 is changed into an on point, the rotary resistance type material level switch power supply is cut off, and the rotary resistance type material level switch is stopped to continue to operate. Meanwhile, a normally open point No. 9 terminal and a normally closed point No. 10 terminal of the KZ1 intermediate relay are connected in parallel to the pull-cord switch for neutralization, a normally closed point No. 11 terminal and a normally closed point No. 12 terminal are connected in series to the pull-cord switch for transmission of two groups of signals to the DCS system and the relay of the local high-voltage cabinet for joint tripping of the belt conveyor respectively, continuous operation of the belt conveyor is stopped, and continuous expansion of coal blockage is prevented.
Claims (5)
1. An alarm device for detecting coal blockage of a coal dropping pipe, which comprises the following components: QF1 switch, QF1 switch be connected with 220V power supply wiring's No. 1 terminal and No. 2 terminal respectively, characterized by: 220V power supply wiring and whirl hinder formula material level switch be connected, whirl hinder formula material level switch on have SA1 control button, no. 1 terminal and No. 2 terminals of 220V power supply wiring respectively with KZ1 intermediate relay, KZ3 intermediate relay and KZ5 intermediate relay parallel connection, KZ1 intermediate relay and HR pilot lamp series connection, KZ5 intermediate relay and HL pilot lamp series connection.
2. The alarm device for detecting coal blockage of a coal dropping pipe according to claim 1, wherein: the rotary material is a normally open point of the rotary resistance type material level switch, wherein the switch is provided with a No. 5 terminal and a No. 6 terminal, and the No. 5 terminal and the No. 6 terminal form the normally open point of the rotary resistance type material level switch.
3. The alarm device for detecting coal blockage of a coal dropping pipe according to claim 1, wherein: and the KZ5 intermediate relay is provided with a No. 7 terminal and a No. 8 terminal, and the No. 7 terminal and the No. 8 terminal form a normally open point of the KZ5 intermediate relay.
4. The alarm device for detecting coal blockage of a coal dropping pipe according to claim 1, wherein: and the KZ1 intermediate relay is provided with a No. 9 terminal and a No. 10 terminal, and the No. 9 terminal and the No. 10 terminal form a normally open point of the KZ1 intermediate relay.
5. The alarm device for detecting coal blockage of a coal dropping pipe according to claim 4, wherein: the KZ1 intermediate relay is provided with an 11-number terminal and a 12-number terminal, and the 11-number terminal and the 12-number terminal form a normally closed point of the KZ1 intermediate relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323172460.6U CN221025979U (en) | 2023-11-23 | 2023-11-23 | Alarm device for detecting coal blockage of coal dropping pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323172460.6U CN221025979U (en) | 2023-11-23 | 2023-11-23 | Alarm device for detecting coal blockage of coal dropping pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221025979U true CN221025979U (en) | 2024-05-28 |
Family
ID=91136502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323172460.6U Active CN221025979U (en) | 2023-11-23 | 2023-11-23 | Alarm device for detecting coal blockage of coal dropping pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221025979U (en) |
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2023
- 2023-11-23 CN CN202323172460.6U patent/CN221025979U/en active Active
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