CN220111340U - Centrifuge control circuit - Google Patents
Centrifuge control circuit Download PDFInfo
- Publication number
- CN220111340U CN220111340U CN202321150344.1U CN202321150344U CN220111340U CN 220111340 U CN220111340 U CN 220111340U CN 202321150344 U CN202321150344 U CN 202321150344U CN 220111340 U CN220111340 U CN 220111340U
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- CN
- China
- Prior art keywords
- oil pump
- pump motor
- main motor
- switch
- thermal relay
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000706 filtrate Substances 0.000 claims abstract description 26
- 239000003245 coal Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000012071 phase Substances 0.000 description 4
- 239000011362 coarse particle Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Centrifugal Separators (AREA)
Abstract
The utility model discloses a centrifuge control circuit which comprises a main motor breaker QF1, a main motor contactor KM1, a main motor thermal relay FR1, an oil pump motor breaker QF2, an oil pump motor contactor KM2 and an oil pump motor thermal relay FR2, and further comprises a floating ball switch K, a main motor stop switch SB1, a main motor start switch SB2, an oil pump motor stop switch SB3 and an oil pump motor start switch SB4. The advantages are that: a set of float switch is additionally arranged in the filtrate water collecting tank, and when a filtrate water pipe is blocked, the liquid level in the filtrate water collecting tank can rise to touch the float switch, the float switch is disconnected, and the main motor and the oil pump motor are stopped, so that automatic control is formed, the centrifugal machine is convenient to control to stop running in time, and the problems that the coal slime filtrate water is sprayed everywhere and enters adjacent equipment to cause subsequent various faults are solved.
Description
Technical field:
the utility model relates to the technical field of centrifuges, in particular to a control circuit of a centrifuger.
The background technology is as follows:
the centrifugal machine is characterized in that after a coal water mixture with a certain concentration is sent into the centrifugal machine, the coal water mixture is distributed through a distribution disc and enters the gaps of a screen basket and a scraper, water passes through a screen cloth to splash to an upper cover lining plate under the action of centrifugal force, flows into a filtrate water collecting tank of a machine seat along the lining plate, and is discharged out of the machine body through a filtrate water pipe. The solid-phase materials accumulated on the inner side of the screen basket are scraped to the bottom of the screen basket by the scraper by utilizing the screen basket or the rotation speed difference between the screen basket and the screen basket scraper, and discharged through the bell-shaped cover and the outlet cone. However, when gaps are increased due to abrasion of the screen blue or the screen blue is directly ground, coarse particles enter a filtrate water collecting tank along with filtrate water, and then the coarse particles in the filtrate can be accumulated in the filtrate water pipe along with the filtrate water entering the filtrate water pipe to cause the blockage of the filtrate water pipe, so that coal slime filtrate water is sprayed everywhere; filtrate water sometimes enters adjacent equipment to cause subsequent various faults, if the situation that the pipeline is blocked more seriously and even blocked even if the situation that the pipeline is not timely is found, the pipeline is cut to dredge the equipment, and the equipment is welded after dredging, so that a plurality of inconveniences and safety risks are brought to normal operation and rush repair work of the equipment.
The utility model comprises the following steps:
the utility model aims to provide a centrifuge control circuit capable of realizing automatic control according to the blockage of a filtrate water pipe.
The utility model is implemented by the following technical scheme: the centrifugal machine control circuit comprises a main motor breaker QF1, a main motor contactor KM1, a main motor thermal relay FR1, an oil pump motor breaker QF2, an oil pump motor contactor KM2 and an oil pump motor thermal relay FR2, and further comprises a floating ball switch K, a main motor stop switch SB1, a main motor start switch SB2, an oil pump motor stop switch SB3 and an oil pump motor start switch SB4, wherein the floating ball switch K is arranged in a filtrate water collecting tank, a normally closed auxiliary contact of the main motor thermal relay FR1, a coil of the main motor contactor KM1, the floating ball switch K and a first normally open auxiliary contact of the oil pump motor contactor KM2 are connected in series and then connected with a power supply line, and a normally closed auxiliary contact of the oil pump motor thermal relay FR2, a coil of the oil pump motor contactor KM2, the oil pump motor stop switch SB3 and the oil pump motor start switch SB4 are connected in series and then connected with the power supply line; the main motor breaker QF1, a main contact of the main motor contactor KM1 and a main motor thermal relay FR1 are connected in series and then connected between the main motor M1 and a three-phase power supply; the oil pump motor breaker QF2, the main contact of the oil pump motor contactor KM2 and the oil pump motor thermal relay FR2 are connected in series and then connected between the oil pump motor M2 and a three-phase power supply.
Further, the first normally open auxiliary contact of the main motor contactor KM1 is connected in parallel with the main motor start switch SB 2.
Further, the second normally open auxiliary contact of the main motor contactor KM1 is connected in parallel with the oil pump motor stop switch SB 3.
Further, the first normally open auxiliary contact of the oil pump motor contactor KM2 is connected in parallel with the oil pump motor start switch SB4.
Further, the normally open auxiliary contact of the main motor thermal relay FR1 and the main motor thermal relay alarm lamp HL1 are connected in series and then connected with a power supply line.
Further, the normally open auxiliary contact of the oil pump motor thermal relay FR2 and the oil pump motor thermal relay alarm lamp HL2 are connected in series and then connected with a power supply circuit.
The utility model has the advantages that: a set of float switch is additionally arranged in the filtrate water collecting tank, when a filtrate water pipe is blocked, the liquid level in the filtrate water collecting tank can rise and touch the float switch by utilizing the principle of the float switch, the float switch is disconnected, and the main motor and the oil pump motor are stopped, so that automatic control is formed, the centrifugal machine is convenient to control to stop running in time, and the problems that the coal slime filtrate water is sprayed everywhere and enters adjacent equipment to cause subsequent various faults are solved; the workload that the pipeline is blocked seriously and even the pipeline is manually cut after being blocked and the pipeline is removed for welding after being dredged due to untimely discovery is reduced, and a plurality of inconveniences and safety risks brought by equipment rush repair work are reduced.
Description of the drawings:
fig. 1 is a schematic diagram of the overall structure of the present utility model.
Main motor circuit breaker QF1, main motor contactor KM1, main motor thermal relay FR1, oil pump motor circuit breaker QF2, oil pump motor contactor KM2, oil pump motor thermal relay FR2, float switch K, main motor stop switch SB1, main motor start switch SB2, oil pump motor stop switch SB3, oil pump motor start switch SB4, main motor thermal relay alarm lamp HL1, oil pump motor thermal relay alarm lamp HL2, main motor M1, oil pump motor M2.
The specific embodiment is as follows:
as shown in fig. 1, the centrifuge control circuit comprises a main motor breaker QF1, a main motor contactor KM1, a main motor thermal relay FR1, an oil pump motor breaker QF2, an oil pump motor contactor KM2, an oil pump motor thermal relay FR2, a float switch K, a main motor stop switch SB1, a main motor start switch SB2, an oil pump motor stop switch SB3, and an oil pump motor start switch SB4, wherein a float switch K is arranged in a filtrate water collecting tank, a normally closed auxiliary contact of the main motor thermal relay FR1, a coil of the main motor contactor KM1, the float switch K, a first normally open auxiliary contact of the oil pump motor contactor KM2, the main motor stop switch SB1, the main motor start switch SB2 are connected in series and then connected with a power supply line, and a normally closed auxiliary contact of the oil pump motor thermal relay FR2, a coil of the oil pump motor contactor KM2, the oil pump motor stop switch SB3, and the oil pump motor start switch SB4 are connected in series and then connected with the power supply line; the main motor breaker QF1, a main contact of the main motor contactor KM1 and a main motor thermal relay FR1 are connected in series and then connected between the main motor M1 and a three-phase power supply; the oil pump motor breaker QF2, the main contact of the oil pump motor contactor KM2 and the oil pump motor thermal relay FR2 are connected in series and then connected between the oil pump motor M2 and a three-phase power supply.
The first normally open auxiliary contact of the main motor contactor KM1 is connected in parallel with the main motor start switch SB 2. The second normally open auxiliary contact of the main motor contactor KM1 is connected in parallel with the oil pump motor stop switch SB 3. The first normally open auxiliary contact of the oil pump motor contactor KM2 is connected in parallel with the oil pump motor start switch SB4.
The normally open auxiliary contact of the main motor thermal relay FR1 and the main motor thermal relay alarm lamp HL1 are connected in series and then connected with a power supply line. The normally open auxiliary contact of the oil pump motor thermal relay FR2 and the oil pump motor thermal relay alarm lamp HL2 are connected in series and then connected with a power supply circuit.
The control process comprises the following steps: when the filtrate water pipe is not blocked, the floating ball switch K is in a closed state, at the moment, the oil pump motor starting switch SB4 is pressed, the coil of the oil pump motor contactor KM2 is powered on, the main contact of the oil pump motor contactor KM2 is closed, the oil pump motor M2 operates, and the second auxiliary normally open contact of the oil pump motor contactor KM2 connected with the oil pump motor starting switch SB4 in parallel is closed to form self-locking; the first normally open contact of the oil pump motor contactor KM2 is closed, the main motor starting switch SB2 is pressed, then the coil of the main motor contactor KM1 is electrified, the main contact of the main motor contactor KM1 is closed, the main motor M1 starts to operate, the first normally open auxiliary contact of the main motor contactor KM1 connected with the main motor starting switch SB2 in parallel is closed to form self-locking, the second normally open auxiliary contact of the main motor contactor KM1 connected with the oil pump motor stopping switch SB3 is closed to form interlocking, and only after the main motor M1 stops operating, the oil pump motor M2 can stop operating after the oil pump motor stopping switch SB3 is pressed.
When the filtrate water pipe is blocked by coarse particles, the liquid level in the filtrate water collecting tank rises, the floating ball of the floating ball switch K floats upwards, and when the floating ball switch K floats to a set position, the floating ball switch K is disconnected, the coil of the main motor contactor KM1 is powered off, and the main motor M1 is stopped.
When the main motor thermal relay FR1 is overloaded, the normally closed auxiliary contact is disconnected, the coil of the main motor contactor KM1 is powered off, and the main motor M1 is stopped; the normally open auxiliary contact of the main motor thermal relay FR1 is closed, and the main motor thermal relay alarm lamp HL1 is turned on to give an alarm.
When the thermal relay FR2 of the oil pump motor is overloaded, the normally closed auxiliary contact is disconnected, the coil of the contactor KM2 of the oil pump motor is deenergized, and the oil pump motor M2 is stopped; the normally open auxiliary contact of the oil pump motor thermal relay FR2 is closed, and the oil pump motor thermal relay alarm lamp HL2 is lightened to give an alarm.
In the running process of the centrifugal machine, the main motor M1 can be controlled to stop by pressing the main motor stop switch SB1, and when the main motor M1 stops running and then the oil pump motor M2 stops running by pressing the oil pump motor stop switch SB 3.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. The centrifugal machine control circuit comprises a main motor circuit breaker (QF 1), a main motor contactor (KM 1), a main motor thermal relay (FR 1), an oil pump motor circuit breaker (QF 2), an oil pump motor contactor (KM 2) and an oil pump motor thermal relay (FR 2), and is characterized by further comprising a floating ball switch (K), a main motor stop switch (SB 1), a main motor starting switch (SB 2), an oil pump motor stop switch (SB 3) and an oil pump motor starting switch (SB 4), wherein the floating ball switch (K) is arranged in a filtrate water collecting tank, and a normally closed auxiliary contact of the main motor thermal relay (FR 1), a coil of the main motor contactor (KM 1), the floating ball switch (K) and a first normally open auxiliary contact of the oil pump motor contactor (KM 2), the main motor stop switch (SB 1) and the main motor starting switch (SB 2) are connected in series and then connected with a power supply circuit; the second normally open auxiliary contact of the main motor contactor (KM 1) is connected with an oil pump motor stop switch (SB 3) in parallel; the normally closed auxiliary contact of the oil pump motor thermal relay (FR 2), the coil of the oil pump motor contactor (KM 2), the oil pump motor stop switch (SB 3) and the oil pump motor start switch (SB 4) are connected in series and then connected with a power supply circuit; the main motor circuit breaker (QF 1), a main contact of the main motor contactor (KM 1) and the main motor thermal relay (FR 1) are connected in series and then connected between the main motor (M1) and the three-phase power supply; the oil pump motor circuit breaker (QF 2), the main contact of the oil pump motor contactor (KM 2) and the oil pump motor thermal relay (FR 2) are connected in series and then connected between the oil pump motor (M2) and the three-phase power supply.
2. A centrifuge control circuit according to claim 1, characterized in that the first normally open auxiliary contact of the main motor contactor (KM 1) is connected in parallel with the main motor start switch (SB 2).
3. A centrifuge control circuit according to claim 1 or 2, characterized in that the first normally open auxiliary contact of the oil pump motor contactor (KM 2) is connected in parallel with the oil pump motor start switch (SB 4).
4. The centrifuge control circuit according to claim 1 or 2, characterized in that the normally open auxiliary contact of the main motor thermal relay (FR 1) and the main motor thermal relay alarm lamp (HL 1) are connected in series and then connected to the power supply line.
5. A centrifuge control circuit according to claim 3, characterized in that the normally open auxiliary contact of the main motor thermal relay (FR 1) and the main motor thermal relay warning lamp (HL 1) are connected in series and then connected to the supply line.
6. The centrifuge control circuit according to claim 1, 2 or 5, characterized in that the normally open auxiliary contact of the oil pump motor thermal relay (FR 2) and the oil pump motor thermal relay warning lamp (HL 2) are connected in series and then connected to the power supply line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150344.1U CN220111340U (en) | 2023-05-11 | 2023-05-11 | Centrifuge control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150344.1U CN220111340U (en) | 2023-05-11 | 2023-05-11 | Centrifuge control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220111340U true CN220111340U (en) | 2023-12-01 |
Family
ID=88914686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321150344.1U Active CN220111340U (en) | 2023-05-11 | 2023-05-11 | Centrifuge control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220111340U (en) |
-
2023
- 2023-05-11 CN CN202321150344.1U patent/CN220111340U/en active Active
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