CN219831671U - Time-sharing multiplexing control circuit of raw coal bucket dust remover - Google Patents
Time-sharing multiplexing control circuit of raw coal bucket dust remover Download PDFInfo
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- CN219831671U CN219831671U CN202320067214.5U CN202320067214U CN219831671U CN 219831671 U CN219831671 U CN 219831671U CN 202320067214 U CN202320067214 U CN 202320067214U CN 219831671 U CN219831671 U CN 219831671U
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- 239000003245 coal Substances 0.000 title claims abstract description 64
- 239000000428 dust Substances 0.000 title claims abstract description 58
- 230000001052 transient effect Effects 0.000 description 14
- 239000002699 waste material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000002817 coal dust Substances 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The utility model discloses a time-sharing multiplexing control circuit of a raw coal bucket dust remover, which comprises a signal detector WY, a relay KA1 and a relay KM2, wherein the signal detector WY is connected with a coil KA1-1 of the relay KA1, an instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with a coil KM2-1 of the relay KM2, an instantaneous normally-open contact KA1-2 of the relay KA1 is connected with an instantaneous normally-open contact KM1-2 of the relay KM1, and a coil KM1-1 of the relay KM1-2 of the relay KM 1.
Description
Technical Field
The utility model relates to a time-sharing multiplexing control circuit of a raw coal bucket dust remover, and belongs to the technical field of power plant control circuits.
Background
In a coal-fired power plant, a raw coal bucket dust remover is a facility for purifying air in a raw coal bucket and at each coal inlet when corresponding coal plough falls down to feed coal in a coal bin and dust in the raw coal bucket is gushed up, so that dust concentration between coal bins can be reduced, working environment of a coal conveying workshop can be optimized, and even serious accidents of coal dust deflagration can be prevented. In order to ensure the dust removal effect of the raw coal hoppers, referring to fig. 4, each new power plant basically adopts a one-to-one configuration mode of 1 group of dust collectors corresponding to 1 raw coal hopper, and in operation, adopts a mode that the dust collectors continuously work for a long time or adopts a mode that the corresponding dust collectors are automatically interlocked to start when the raw coal hoppers corresponding to the coal plough fall. A blast valve is generally installed on a dust removal blast pipe, and the blast valve is kept normally open in operation, under the condition of one-to-one arrangement, a plurality of groups of dust removers are required to be arranged, and when a mode of automatically interlocking to start the corresponding dust removers when the corresponding coal bin plough falls down is adopted, most of energy sources are wasted in the stage of initially establishing negative pressure and forming stable working conditions, so that great energy sources are wasted. The arrangement situation also does not fully play the role of each air valve, so that the resource waste is caused.
Disclosure of Invention
Aiming at the technical problems, the utility model provides a time-sharing multiplexing control circuit of a raw coal bucket dust remover, which saves resources.
A time-sharing multiplexing control circuit of a raw coal bucket dust remover comprises a blast gate control loop, a signal input control loop and a blast gate execution loop which are respectively connected with a first power supply and a second power supply in a bridging way;
the signal input control loop comprises a signal detector WY and a relay KA1, wherein a first end of the signal detector WY is connected with a first power supply, a second end of the signal detector WY is connected with a first end of a coil KA1-1 of the relay KA1, a second end of the coil KA1-1 of the relay KA1 is connected with a second power supply, when the signal detector WY detects a signal, a built-in switch of the signal detector WY is closed, and when the signal detector WY does not detect the signal, the built-in switch of the signal detector WY is opened;
the air valve control loop comprises a relay KM1 and a relay KM2, wherein a first end of an instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with a first power supply, a second end of the instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with a first end of a coil KM2-1 of the relay KM2, a second end of the instantaneous normally-open contact KA1-2 of the relay KA1 is connected with the first power supply, a second end of the coil KM1-1 of the relay KM1 is connected with a second power supply, a first end of an instantaneous normally-closed contact KA1-3 of the relay KA1 is connected with the first end of an instantaneous normally-open contact KM1-2 of the relay KM1, and a second end of an instantaneous normally-open contact KM1-2 of the relay KM1 is connected with the first end of a coil KM1-1 of the relay KM 1;
the air valve executing loop comprises an air valve M, a power supply end of the air valve M is connected with a first power supply, an opening end and a closing end of the air valve M are both connected with a second power supply, an instantaneous normally open contact KM1-3 of a relay KM1 is located between the opening end of the air valve M and the second power supply, and an instantaneous normally open contact KM2-2 of a relay KM2 is located between the closing end of the air valve M and the second power supply.
The technical scheme is further improved in that the electric power supply further comprises a stop button SB1 and a start button SB2, and the stop button SB1 is positioned between the instantaneous normally-closed contacts KA1-3 of the relay KA1 and the first power supply; the first end of the starting button SB2 is connected with the first end of the instantaneous normally-closed contact KA1-3 of the relay KA1, and the second end is connected with the second end of the instantaneous normally-open contact KM1-2 of the relay KM 1.
Further, the system further comprises a interlock switch SA, wherein the interlock switch SA is positioned between the first power supply and the stop button SB1, and the interlock switch SA is also positioned between the first power supply and the signal detector WY.
Further, the system further comprises a thermal relay KH1, wherein the thermal relay KH1 is positioned between a coil KM1-1 of the relay KM1 and a coil KM2-1 of the relay KM2 and the second power supply, and the thermal relay KH1 is also positioned between an instantaneous normally open contact KM1-3 of the relay KM1 and an instantaneous normally open contact KM2-2 of the relay KM2 and the air valve M.
Further, the intelligent power supply further comprises a transformer Z, a first input end of the transformer Z is connected with the interlocking switch SA, a first output end of the transformer Z is connected with the signal detector WY, a second input end of the transformer Z is connected with the second power supply, and a second output end of the transformer Z is connected with a coil KA1-1 of the relay KA 1.
Further, the lamp bulb HG4 is also included, a first end of the lamp bulb HG4 is connected with a first input end of the transformer Z, and a second end of the lamp bulb HG4 is connected with a second power supply.
Further, the bulb further comprises a normally-open thermal relay KH2 and a bulb HG3, wherein the first end of the normally-open thermal relay KH2 is connected with a first power supply, the second end of the normally-open thermal relay KH2 is connected with the first end of the bulb HG3, and the second end of the bulb HG3 is connected with a second power supply.
Further, the lamp bulb HG2 is also included, the first end of the lamp bulb HG2 is connected with the first end of the stop button SB1, and the second end is connected with the second power supply.
Further, the lamp bulb HG1 is also included, and the lamp bulb HG1 is connected between the first power supply and the second power supply.
The technical scheme can be seen that: according to the time-sharing multiplexing control circuit of the raw coal bucket dust remover, when a signal is detected through the signal detector WY, a built-in switch of the signal detector WY is closed, a coil KA1-1 of a relay KA1 is electrified, a transient normally open contact KA1-2 of the relay KA1 is closed, a coil KM1-1 of the relay KM1 is electrified, a transient normally open contact KM1-2 of the relay KM1 is closed to form a self-locking circuit, when the transient normally open contact KA1-2 of the relay KA1 is opened, the coil KA1-1 of the relay KA1 can be automatically kept continuously electrified, a transient normally closed contact KM1-4 of the relay KM1 is opened, a transient normally open contact KM2-2 of the relay KM1 is opened, an opening end of a wind valve M is electrified, a closing end of the wind valve M is electrified, the wind valve M is started, the coil KA1-1 of the relay KA1 is in contact with a power supply is in the same way, and the coil KA1-1 of the relay KA1 is closed, and the transient normally open contact KM2-2 of the relay KM2 is opened, and the relay KM1-2 is opened, and the transient normally open contact KM1-2 is closed; the air valve can be opened and closed according to actual conditions, so that the dust remover is prevented from utilizing most of energy waste in the stage of initially establishing negative pressure and forming stable working conditions, the energy waste is reduced, and the resources are saved.
Drawings
For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a time-sharing multiplexing control circuit of a raw coal bucket dust remover.
Fig. 2 is a schematic diagram of a blast valve executing loop in a time-sharing multiplexing control circuit of a raw coal bucket dust remover.
Fig. 3 is a schematic diagram of a time-sharing multiplexing system of a raw coal bucket dust remover provided by the utility model.
Fig. 4 is a schematic diagram of a prior art time division multiplexing system of an original coal bucket dust remover.
Fig. 5 is a schematic diagram of an execution module in the time division multiplexing system of the raw coal bucket dust remover provided by the utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Referring to fig. 1 and 2, a time-sharing multiplexing control circuit of a raw coal bucket dust remover comprises a blast gate control loop, a signal input control loop and a blast gate execution loop which are respectively connected with a first power supply and a second power supply in a bridging way;
the signal input control loop comprises a signal detector WY and a relay KA1, wherein a first end of the signal detector WY is connected with a first power supply, a second end of the signal detector WY is connected with a first end of a coil KA1-1 of the relay KA1, a second end of the coil KA1-1 of the relay KA1 is connected with a second power supply, when the signal detector WY detects a signal, a built-in switch of the signal detector WY is closed, and when the signal detector WY does not detect the signal, the built-in switch of the signal detector WY is opened;
the air valve control loop comprises a relay KM1 and a relay KM2, wherein a first end of an instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with a first power supply, a second end of the instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with a first end of a coil KM2-1 of the relay KM2, a second end of the instantaneous normally-open contact KA1-2 of the relay KA1 is connected with the first power supply, a second end of the coil KM1-1 of the relay KM1 is connected with a second power supply, a first end of an instantaneous normally-closed contact KA1-3 of the relay KA1 is connected with the first end of an instantaneous normally-open contact KM1-2 of the relay KM1, and a second end of an instantaneous normally-open contact KM1-2 of the relay KM1 is connected with the first end of a coil KM1-1 of the relay KM 1;
the air valve executing loop comprises an air valve M, a power supply end of the air valve M is connected with a first power supply, an opening end and a closing end of the air valve M are both connected with a second power supply, an instantaneous normally open contact KM1-3 of a relay KM1 is located between the opening end of the air valve M and the second power supply, and an instantaneous normally open contact KM2-2 of a relay KM2 is located between the closing end of the air valve M and the second power supply.
According to the time-sharing multiplexing control circuit of the raw coal bucket dust remover, when a signal is detected through the signal detector WY, a built-in switch of the signal detector WY is closed, a coil KA1-1 of a relay KA1 is electrified, a transient normally open contact KA1-2 of the relay KA1 is closed, a coil KM1-1 of the relay KM1 is electrified, a transient normally open contact KM1-2 of the relay KM1 is closed to form a self-locking circuit, when the transient normally open contact KA1-2 of the relay KA1 is opened, the coil KA1-1 of the relay KA1 can be automatically kept continuously electrified, a transient normally closed contact KM1-4 of the relay KM1 is opened, a transient normally open contact KM2-2 of the relay KM1 is opened, an opening end of a wind valve M is electrified, a closing end of the wind valve M is electrified, the wind valve M is started, the coil KA1-1 of the relay KA1 is in contact with a power supply is in the same way, and the coil KA1-1 of the relay KA1 is closed, and the transient normally open contact KM2-2 of the relay KM2 is opened, and the relay KM1-2 is opened, and the transient normally open contact KM1-2 is closed; the air valve can be opened and closed according to actual conditions, so that the dust remover is prevented from utilizing most of energy waste in the stage of initially establishing negative pressure and forming stable working conditions, the energy waste is reduced, and the resources are saved.
Referring to FIG. 1, in other embodiments, a stop button SB1 and a start button SB2 are also included, the stop button SB1 being located between the momentary normally closed contacts KA1-3 of the relay KA1 and the first power supply; the first end of the starting button SB2 is connected with the first end of the instantaneous normally-closed contact KA1-3 of the relay KA1, and the second end is connected with the second end of the instantaneous normally-open contact KM1-2 of the relay KM 1.
The stop button SB1 is a normally closed switch, the stop button SB1 is pressed to disconnect the stop button SB1, the coil KA1-1 of the relay KA1 is powered off, the instantaneous normally closed contact KM1-4 of the relay KM1 is closed, the coil KM2-1 of the relay KM2 is powered on, the instantaneous normally open contact KM1-3 of the relay KM1 is disconnected, the instantaneous normally open contact KM2-2 of the relay KM2 is closed, the opening end of the air valve M is powered off, the closing end of the air valve M is powered on, the air valve M is closed, and after the stop button SB1 is released, the stop button SB1 is closed to wait for the starting of the air valve M; the starting button SB2 is a normally open switch, the starting button SB2 is a manual button, when no signal is received, the starting button SB2 can be pressed to enable the starting button SB2 to be closed, the instantaneous normally closed contact KM1-4 of the relay KM1 is opened, the coil KM2-1 of the relay KM2 is powered off, the instantaneous normally open contact KM1-3 of the relay KM1 is closed, the instantaneous normally open contact KM2-2 of the relay KM2 is opened, the opening end of the air valve M is powered on, the closing end of the air valve M is powered off, and the air valve M is started.
In other embodiments, stop button SB1 and start button SB2 may be replaced with contacts controlled by signals at 1.
Referring to fig. 1, in other embodiments, the system further includes a interlock switch SA located between the first power source and the stop button SB1, and the interlock switch SA is also located between the first power source and the signal detector WY. The interlock switch SA is a safety switch and comprises a bolt type interlock switch, a pull rope switch with an emergency stop button, a non-contact magnetic induction switch, a hinge interlock switch, a protective door interlock switch with a lock catch coil, an emergency stop switch, a safety limit switch and an explosion-proof switch, wherein the switch can prevent personnel from entering a dangerous area before all safety conditions are met.
Referring to fig. 1 and 2, in other embodiments, the system further includes a thermal relay KH1, the thermal relay KH1 being located between the coil KM1-1 of the relay KM1 and the coil KM2-1 of the relay KM2 and the second power supply, the thermal relay KH1 being further located between the momentary normally open contact KM1-3 of the relay KM1 and the momentary normally open contact KM2-2 of the relay KM2 and the damper M; the working principle of the thermal relay KH1 is that the current flowing into the thermal element generates heat, so that bimetallic strips with different expansion coefficients deform, when the deformation reaches a certain distance, the connecting rod is pushed to act, so that the working circuit is disconnected, and when the current of a loop where a wind valve M, a coil KM1-1 of the relay KM1 and a coil KM2-1 of the relay KM2 are positioned is too high, the wind valve M is disconnected, the coil KM1-1 of the relay KM1 is disconnected, and the coil KM2-1 of the relay KM2 is disconnected, so that overload protection of the circuit is realized.
Referring to fig. 1, in other embodiments, the apparatus further includes a transformer Z, a first input terminal of the transformer Z is connected to the interlock switch SA, a first output terminal of the transformer Z is connected to the signal detector WY, a second input terminal of the transformer Z is connected to the second power supply, a second output terminal of the transformer Z is connected to the coil KA1-1 of the relay KA1, the transformer Z changes an ac voltage by using the principle of electromagnetic induction, and in this embodiment, the transformer Z reduces a voltage passing through the signal detector WY to 24V to protect the signal detector WY.
Referring to fig. 1, in other embodiments, the circuit further includes a bulb HG4, where a first end of the bulb HG4 is connected to the first input end of the transformer Z, a second end of the bulb HG is connected to the second power supply, and the bulb HG4 is used to indicate whether the circuit where the signal detector WY is located is working normally.
Referring to fig. 1, in other embodiments, the device further includes a normally open thermal relay KH2 and a bulb HG3, where a first end of the normally open thermal relay KH2 is connected to the first power supply, a second end of the normally open thermal relay KH2 is connected to a first end of the bulb HG3, a second end of the bulb HG3 is connected to the second power supply, the bulb HG3 is a faulty bulb, and when the control circuit fails, the normally open thermal relay KH2 is closed, and the bulb HG3 is turned on to transmit the control circuit to the outside.
Referring to fig. 1, in other embodiments, the circuit further includes a bulb HG2, wherein a first end of the bulb HG2 is connected to the first end of the stop button SB1, a second end of the bulb HG2 is connected to the second power supply, and the bulb HG2 is used for indicating whether the circuit where the coil KM1-1 of the relay KM1 and the coil KM2-1 of the relay KM2 are located is operating normally.
Referring to fig. 1, in other embodiments, the control circuit further includes a bulb HG1, where the bulb HG1 is connected between the first power source and the second power source, and the bulb HG2 is used to indicate whether the control circuit is operating normally.
Referring to fig. 3, a raw coal bucket dust remover time division multiplexing system comprises a plurality of raw coal bucket control groups, dust removers and a raw coal bucket dust remover time division multiplexing control circuit;
wherein, raw coal fights control group includes:
the raw coal hopper is used for outputting a setting signal; specifically, when the raw coal hopper receives raw materials, the raw coal hopper outputs a setting signal;
the control circuit is arranged in the control box, is electrically connected with the raw coal hopper, and is used for receiving and processing the setting signals and outputting the control signals; specifically, when raw coal hopper receives the raw materials, the output signal makes the blast gate open or close.
The air valve is positioned on the coal outlet of the raw coal hopper, is electrically connected with the control circuit, and is used for receiving the control signal and opening or closing according to the control signal, in particular to opening or closing the air valve according to the signal;
the dust remover is connected with all the air valves and is used for starting dust removing work or stopping dust removing work when the air valves are opened or closed.
The time-sharing multiplexing system of the raw coal bucket dust remover provided by the utility model adopts a mode that one dust remover corresponds to a plurality of raw coal buckets, so that the number of large equipment of the dust remover is greatly reduced, the operation effect and the energy-saving effect of the original raw coal bucket dust remover are improved only by changing a small number of air pipe structures and improving air valves, and the dust removing efficiency of the dust remover which is arranged in a one-to-one mode of other newly-built units is basically realized. Meanwhile, the time-sharing multiplexing system of the raw coal bucket dust remover also improves the utilization rate of the dust remover, the dust remover keeps running all the time in the full coal feeding process, the start and stop times of the dust remover are reduced, and the failure rate is also reduced.
Referring to fig. 5, the raw coal hopper includes a plurality of groups of execution modules; wherein each set of execution modules includes: the first execution unit and the second execution unit, the first execution unit sets up on the transportation belt, and the second execution unit sets up on the plough coal ware.
The first execution unit is used for running the conveyor belt and outputting a first setting signal when the conveyor belt runs;
the second execution unit is used for descending the coal plough and outputting a second setting signal when the coal plough descends;
the setting signal includes a first setting signal and a second setting signal.
The control box receiving and processing the setting signal comprises: and when receiving the first setting signal and the second setting signal sent by the same group of execution modules, outputting a control signal.
The number of raw coal hoppers is further reduced by increasing the conveying belt and the coal plough, so that the occupied area is reduced, and meanwhile, the dust remover is enabled to work only corresponding to the situation that the electric air valves of 1 or 2 raw coal hoppers are opened all the time, so that the dust remover achieves the optimal dust removing effect. According to the typical design of a coal conveying system, each boiler has only 2 raw coal hoppers at most in the coal feeding process and needs to remove dust during coal feeding, so that the design can completely achieve the same dust removing effect as the one-to-one arrangement of dust removers.
Referring to fig. 3, in other embodiments, the air valves are interlocked, that is, when the air valve receiving the control signal is opened or closed, the rest air valves not receiving the control signal are closed, so that the stage of initially establishing negative pressure and forming stable working conditions by using most energy waste of the dust remover is avoided, the energy waste is reduced, and the resources are saved.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.
Claims (9)
1. The time-sharing multiplexing control circuit of the raw coal bucket dust remover is characterized by comprising a blast gate control loop, a signal input control loop and a blast gate execution loop which are respectively connected with a first power supply and a second power supply in a bridging way;
the signal input control loop comprises a signal detector WY and a relay KA1, wherein a first end of the signal detector WY is connected with the first power supply, a second end of the signal detector WY is connected with a first end of a coil KA1-1 of the relay KA1, a second end of the coil KA1-1 of the relay KA1 is connected with the second power supply, when the signal detector WY detects a signal, a built-in switch of the signal detector WY is closed, and when the signal detector WY does not detect the signal, the built-in switch of the signal detector WY is opened;
the air valve control loop comprises a relay KM1 and a relay KM2, wherein a first end of an instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with the first power supply, a second end of the instantaneous normally-closed contact KM1-4 of the relay KM1 is connected with a first end of a coil KM2-1 of the relay KM2, a second end of the coil KM2-1 of the relay KM2 is connected with the second power supply, a first end of an instantaneous normally-open contact KA1-2 of the relay KM1 is connected with the first power supply, a second end of an instantaneous normally-closed contact KA1-3 of the relay KM1 is connected with the first end of a coil KM1-1 of the relay KM1, and a second end of an instantaneous normally-open contact KM1-2 of the relay KM1 is connected with the first end of a coil 1-1 of the relay KM 1;
the air valve executing loop comprises an air valve M, a power supply end of the air valve M is connected with the first power supply, an opening end and a closing end of the air valve M are both connected with the second power supply, an instantaneous normally open contact KM1-3 of a relay KM1 is located between the opening end of the air valve M and the second power supply, and an instantaneous normally open contact KM2-2 of a relay KM2 is located between the closing end of the air valve M and the second power supply.
2. The time division multiplexing control circuit of the raw coal bucket dust remover according to claim 1, further comprising a stop button SB1 and a start button SB2, wherein the stop button SB1 is positioned between an instantaneous normally-closed contact KA1-3 of the relay KA1 and the first power supply; the first end of the starting button SB2 is connected with the first end of the instantaneous normally-closed contact KA1-3 of the relay KA1, and the second end is connected with the second end of the instantaneous normally-open contact KM1-2 of the relay KM 1.
3. The raw coal bucket dust remover time division multiplexing control circuit as set forth in claim 2, further comprising a interlock switch SA, wherein the interlock switch SA is located between the first power source and the stop button SB1, and the interlock switch SA is also located between the first power source and the signal detector WY.
4. The time division multiplexing control circuit of the raw coal bucket dust remover according to claim 1, further comprising a thermal relay KH1, wherein the thermal relay KH1 is positioned between a coil KM1-1 of the relay KM1 and a coil KM2-1 of the relay KM2 and the second power supply, and the thermal relay KH1 is further positioned between an instantaneous normally open contact KM1-3 of the relay KM1 and an instantaneous normally open contact KM2-2 of the relay KM2 and the air valve M.
5. The time division multiplexing control circuit of the raw coal bucket dust remover according to claim 3, further comprising a transformer Z, wherein a first input end of the transformer Z is connected with the interlock switch SA, a first output end of the transformer Z is connected with the signal detector WY, a second input end of the transformer Z is connected with the second power supply, and a second output end of the transformer Z is connected with a coil KA1-1 of the relay KA 1.
6. The time-sharing multiplexing control circuit of a raw coal bucket dust remover according to claim 5, further comprising a bulb HG4, wherein a first end of the bulb HG4 is connected with a first input end of the transformer Z, and a second end of the bulb HG is connected with the second power supply.
7. The time division multiplexing control circuit of the raw coal bucket dust remover according to claim 1, further comprising a normally open thermal relay KH2 and a bulb HG3, wherein a first end of the normally open thermal relay KH2 is connected with the first power supply, a second end of the normally open thermal relay KH2 is connected with the first end of the bulb HG3, and a second end of the bulb HG3 is connected with the second power supply.
8. The time-sharing multiplexing control circuit of the raw coal bucket dust remover of claim 3, further comprising a bulb HG2, wherein a first end of the bulb HG2 is connected with a first end of the stop button SB1, and a second end is connected with the second power supply.
9. The raw coal bucket dust remover time division multiplexing control circuit of claim 1, further comprising a bulb HG1, wherein the bulb HG1 is connected between the first power supply and the second power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067214.5U CN219831671U (en) | 2023-01-10 | 2023-01-10 | Time-sharing multiplexing control circuit of raw coal bucket dust remover |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067214.5U CN219831671U (en) | 2023-01-10 | 2023-01-10 | Time-sharing multiplexing control circuit of raw coal bucket dust remover |
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| CN219831671U true CN219831671U (en) | 2023-10-13 |
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| CN202320067214.5U Active CN219831671U (en) | 2023-01-10 | 2023-01-10 | Time-sharing multiplexing control circuit of raw coal bucket dust remover |
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| CN (1) | CN219831671U (en) |
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2023
- 2023-01-10 CN CN202320067214.5U patent/CN219831671U/en active Active
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