CN210219823U - Coal fired boiler slag extractor operation control circuit - Google Patents
Coal fired boiler slag extractor operation control circuit Download PDFInfo
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- CN210219823U CN210219823U CN201920816621.5U CN201920816621U CN210219823U CN 210219823 U CN210219823 U CN 210219823U CN 201920816621 U CN201920816621 U CN 201920816621U CN 210219823 U CN210219823 U CN 210219823U
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Abstract
The utility model relates to the field of electrical circuits, and discloses a coal fired boiler slag extractor operation control circuit, which comprises a grate circuit, a water pump group circuit and a slag extractor circuit, wherein the slag extractor circuit is connected in parallel into the grate circuit through circuit optimization design, the slag extractor and the grate form linkage, the start and stop of the slag extractor are synchronous with the start and stop of the boiler, thereby saving a large amount of operation time, reducing the wear of the slag extractor, reducing the cost and prolonging the service life; through the operation control circuit of reasonable design, set up alarm circuit, can effectual demonstration warning ac contactor and the operating condition who monitors warning thermal relay through alarm circuit, ensure the normal operating of grate circuit, water pump group circuit and mucking machine circuit.
Description
Technical Field
The utility model relates to an electric circuit field, especially a coal fired boiler slag extractor operation control circuit.
Background
At present, the slag discharging modes of the coal-fired boiler comprise a hydraulic slag discharging system and equipment and a dry slag discharging system and equipment. By adopting hydraulic slag discharging equipment, most of high-temperature large-block slag and large coke fall into water to be granulated and become smaller slag blocks, so that the slag is convenient to convey. However, the hydraulic slag discharging system and the equipment have the following defects:
(1) slag directly falls into cooling water from the bottom of the boiler, so that combustible substances in the slag and heat contained in the slag are wasted, and meanwhile, the generated steam can corrode parts at the bottom of the boiler;
(2) the water resource consumption is large, the emission of the ash residue water can cause environmental pollution, and the treatment cost is high;
(3) the system is complex and the maintenance and overhaul cost is high. Therefore, dry slagging technology is mostly adopted at present. However, the dry slag discharging device is adopted, no granulating effect of water exists, massive slagging slag blocks can be generated, if the large slag blocks directly fall on the slag conveyer, steel belts of the slag conveyer are easy to break, and large and small slag blocks and crushed slag directly enter the crushed slag, so that the load of the slag crusher is increased, the efficiency of the slag crusher is low, and the failure rate is high.
Disclosure of Invention
An object of the utility model is to provide a coal fired boiler slag extractor operation control circuit to the control of coal fired boiler slag extractor operation, reduces the time of operation, has just also reduced the electric energy that consumes, has reduced the mechanical wear of equipment, has reduced the number of times of maintenance to efficiency has been improved.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a coal fired boiler slag extractor operation control circuit, included the grate circuit, water pump group circuit and mucking machine circuit, grate circuit and the mutual parallelly connected setting of mucking machine circuit, the mucking machine corotation circuit and the mucking machine reversal circuit of parallelly connected setting have been included to the mucking machine circuit, mucking machine corotation circuit and mucking machine reversal circuit are connected through the first change over switch and the second change over switch that two sets of series connection set up, two sets of change over switch rear ends are connected with first button switch and first thermal relay, parallelly connected being provided with the first ac contactor who is used for the auto-lock on first button switch and the first thermal relay.
Wherein, the fire grate circuit is provided with second button switch, third button switch and first current relay in series, and the last parallelly connected second ac contactor that has of second button switch, third button switch and first current relay have second current relay and the first time relay of parallelly connected.
The water pump group circuit comprises two groups of water pump circuits which are arranged in parallel, the two groups of water pump circuits are connected through a third change-over switch, the rear end of the third change-over switch is provided with a fourth button switch and a fifth button switch in series, the fourth button switch is respectively connected with a third alternating current contactor and a fourth alternating current contactor in parallel, the fourth button switch and the fifth button switch are provided with a water level controller contact in parallel, and the fourth button switch, the fifth button switch and the water level controller contact are connected through the fourth change-over switch.
Preferably, one or more of the fire grate circuit, the water pump group circuit and the slag discharging circuit are also connected in series with an alarm circuit, the alarm circuit comprises an alarm thermal relay and an alarm alternating current contactor, the alarm thermal relay and the alarm alternating current contactor are connected in parallel with indicator lamps, and the indicator lamps display the working states of the alarm alternating current contactor and the monitoring alarm thermal relay through on and off.
The utility model discloses following beneficial effect has:
1. the utility model discloses a circuit optimal design, with slag tapping machine circuit parallel connection to the grate circuit in the middle of, the slag tapping machine forms the linkage with the grate, and the slag tapping machine opens and stops to open and stop with the boiler and open and stop in step, can save a large amount of operating duration, reduces the slag tapping machine wearing and tearing, reduce cost, increase of service life.
2. Through the operation control circuit of reasonable design, set up alarm circuit, can effectual demonstration warning ac contactor and the operating condition who monitors warning thermal relay through alarm circuit, ensure the normal operating of grate circuit, water pump group circuit and mucking machine circuit.
Drawings
Fig. 1 is a schematic diagram of a fire grate circuit of the present invention.
Fig. 2 is the schematic diagram of the water pump set circuit of the present invention.
Fig. 3 is a schematic diagram of the slag extractor circuit of the present invention.
Fig. 4 is a schematic diagram of the overall circuit of the present invention.
Description of the main part symbols:
1: grate circuit, 2: water pump group circuit, 3: a slag tapping machine circuit;
11: second push-button switch, 12: third push-button switch, 13: first current relay, 14: second ac contactor, 15: second current relay, 16: first time relay, 17: fire grate alarm thermal relay, 18: fire grate warning ac contactor, 19: a fire grate indicator light;
201: third changeover switch, 202: fourth push-button switch, 203: fifth push-button switch, 204: third ac contactor, 205: fourth ac contactor, 206: water level controller contact, 207: fourth changeover switch, 208: water pump alarm thermorelay A, 209: water pump alarm ac contactor a, 210: water pump alarm thermorelay B, 211: water pump alarm ac contactor B, 212: a water pump indicator light;
31: first changeover switch, 32: second changeover switch, 33: first push-button switch, 34: first thermal relay, 35: first ac contactor, 36: slag extractor warning ac contactor a, 37: mucking machine indicator a, 38: slag extractor warning ac contactor B, 39: and a slag extractor indicator lamp B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1-4, the utility model discloses a coal fired boiler slag extractor operation control circuit, included grate circuit 1, water pump group circuit 2 and mucking machine circuit 3, grate circuit 1 and mucking machine circuit 3 connect the setting in parallel each other, mucking machine circuit 3 has included the mucking machine corotation circuit and the mucking machine reversal circuit of parallelly connected setting, mucking machine corotation circuit and mucking machine reversal circuit are connected through first change over switch 31 and the second change over switch 32 that two sets of series connection set up, two sets of change over switch rear ends are connected with first button switch 33 and first thermal relay 34, parallelly connected being provided with first ac contactor 35 that is used for the auto-lock on first button switch 33 and the first thermal relay 34.
The slag extractor forward rotation circuit and the slag extractor reverse rotation circuit are respectively provided with a slag extractor alarm alternating current contactor A36, a slag extractor indicator lamp A37, a slag extractor alarm alternating current contactor B38 and a slag extractor indicator lamp B39 which are respectively used for monitoring the normal operation of the slag extractor.
The fire grate circuit 1 is provided with a second button switch 11, a third button switch 12 and a first current relay 13 in series, the second button switch 11 is connected with a second alternating current contactor 14 in parallel, and the second button switch 11, the third button switch 12 and the first current relay 13 are connected with a second current relay 15 and a first time relay 16 in parallel.
The fire grate circuit 1 is provided with a fire grate alarm thermal relay 17 and a fire grate alarm alternating current contactor 18, the fire grate alarm thermal relay 17 and the fire grate alarm alternating current contactor 18 are connected in parallel with a fire grate indicator lamp 19, and the fire grate indicator lamp 19 displays the working state of the fire grate alarm thermal relay 17 and the fire grate alarm alternating current contactor 18 through on-off.
The water pump group circuit 2 comprises two groups of water pump circuits which are arranged in parallel, the two groups of water pump circuits are connected through a third change-over switch 201, the rear end of the third change-over switch 201 is provided with a fourth button switch 202 and a fifth button switch 203 in series, the fourth button switch 202 is respectively connected with a third alternating current contactor 204 and a fourth alternating current contactor 205 in parallel, the fourth button switch 202 and the fifth button switch 203 are provided with a water level controller contact 206 in parallel, and the fourth button switch 202, the fifth button switch 203 and the water level controller contact 203 are connected through a fourth change-over switch 207.
Alarm circuits are respectively arranged on two groups of water pump circuits on the water pump group circuit 2, a water pump alarm thermal relay A208 is connected with a water pump alarm AC contactor A209 in series, a water pump alarm thermal relay B210 is connected with a water pump alarm AC contactor B211 in series, and a water pump indicator lamp 212 is connected on the two groups of alarm circuits in parallel and used for monitoring the normal operation of the water pump group circuit 2.
The working principle is as follows:
through circuit optimal design, with slag tapping machine circuit 3 parallel connection insert to grate circuit 1 in the middle of, the slag tapping machine forms the linkage with the grate, and the slag tapping machine opens and stops to open with the boiler and open and stop in step, can save a large amount of operating time, reduce the wearing and tearing of slag tapping machine, reduce expense, increase of service life.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.
Claims (4)
1. The utility model provides a coal fired boiler slag extractor operation control circuit, its characterized in that has included grate circuit, water pump group circuit and mucking machine circuit, grate circuit and mucking machine circuit parallelly connected setting each other, the mucking machine circuit including the mucking machine corotation circuit and the mucking machine reversal circuit of parallelly connected setting, mucking machine corotation circuit and mucking machine reversal circuit connect through two sets of first change over switches and the second change over switch that establish ties and set up, two sets of change over switch rear ends are connected with first button switch and first thermal relay, first button switch and first thermal relay on parallelly connected be provided with a ac contactor who is used for the auto-lock.
2. The operation control circuit of the slag extractor of the coal-fired boiler according to claim 1, characterized in that: the fire grate circuit on establish ties and be provided with second button switch, third button switch and first current relay, second button switch on parallelly connected have second ac contactor, second button switch, third button switch and first current relay on parallelly connected have second current relay and first time relay.
3. The operation control circuit of the slag extractor of the coal-fired boiler according to claim 1, characterized in that: the water pump group circuit comprises two groups of water pump circuits which are arranged in parallel, the two groups of water pump circuits are connected through a third change-over switch, the rear end of the third change-over switch is provided with a fourth button switch and a fifth button switch in series, the fourth button switch is respectively connected with a third alternating current contactor and a fourth alternating current contactor in parallel, the fourth button switch and the fifth button switch are provided with a water level controller contact in parallel, and the fourth button switch, the fifth button switch and the water level controller contact are connected through the fourth change-over switch.
4. The operation control circuit of the slag extractor of the coal-fired boiler according to claim 3, characterized in that: and one or more of the grate circuit, the water pump group circuit and the slag discharging circuit are also connected with an alarm circuit in series, the alarm circuit comprises an alarm thermal relay and an alarm alternating current contactor, the alarm thermal relay and the alarm alternating current contactor are connected with indicator lamps in parallel, and the indicator lamps are used for displaying the working state of the alarm alternating current contactor and monitoring the working state of the alarm thermal relay by lighting or extinguishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816621.5U CN210219823U (en) | 2019-06-01 | 2019-06-01 | Coal fired boiler slag extractor operation control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920816621.5U CN210219823U (en) | 2019-06-01 | 2019-06-01 | Coal fired boiler slag extractor operation control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210219823U true CN210219823U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920816621.5U Expired - Fee Related CN210219823U (en) | 2019-06-01 | 2019-06-01 | Coal fired boiler slag extractor operation control circuit |
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| CN (1) | CN210219823U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111459195A (en) * | 2020-04-08 | 2020-07-28 | 北京京城环保股份有限公司 | Liquid level measurement control device and method for waste incineration slag discharging machine |
-
2019
- 2019-06-01 CN CN201920816621.5U patent/CN210219823U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111459195A (en) * | 2020-04-08 | 2020-07-28 | 北京京城环保股份有限公司 | Liquid level measurement control device and method for waste incineration slag discharging machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |