CN216956785U - Dielectric control system - Google Patents
Dielectric control system Download PDFInfo
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- CN216956785U CN216956785U CN202220725999.6U CN202220725999U CN216956785U CN 216956785 U CN216956785 U CN 216956785U CN 202220725999 U CN202220725999 U CN 202220725999U CN 216956785 U CN216956785 U CN 216956785U
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- medium adding
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- floating ball
- float switch
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a medium adding control system, which is characterized by also comprising a high-position floating ball switch (A), a low-position floating ball switch, a medium adding pump floating ball switch, a circuit breaker, a thermal relay, a contactor, an intermediate relay and a time relay, wherein the medium adding pump floating ball switch is arranged in a medium adding pool above an inlet of a medium adding pump, and the high-position floating ball switch and the low-position floating ball switch are respectively arranged above and below the inside of a medium barrel. The advantages are that: by arranging the medium adding pump floating ball switch, the high-level floating ball switch and the low-level floating ball switch, the liquid level of the medium barrel can be detected in time, the medium adding pump is controlled to work, the liquid level of the medium barrel is ensured, and the medium adding system works normally; meanwhile, the medium adding pump can be controlled to be started only under the condition that the liquid level of the medium adding pool is above the inlet of the medium adding pump, so that the idle running of the medium adding pump can be avoided, and the water replenishing valve can be synchronously closed under the condition that the medium adding pump stops working, so that the phenomenon that the liquid level in the medium adding pool is too high and the medium adding pump and a motor thereof are flooded is avoided, and the service life of the medium adding pump is ensured.
Description
The technical field is as follows:
the utility model relates to the technical field of coal washing, in particular to a medium adding control system.
Background art:
the medium (iron powder) is generally added into a coal washer through a medium adding system, the medium adding system comprises a water injection pipe, a medium adding pool, a medium adding pump and a medium barrel, the medium is added into the medium adding pool and mixed with water injected by the water injection pipe, and then the mixed medium is conveyed into a high-level medium barrel through the medium adding pump. In the medium adding process, the liquid levels of a medium adding pool and a medium barrel need to be manually closed to control the opening and closing of a water supplementing valve on a water injection pipe and the starting and closing of a medium adding pump; however, in the actual operation process, the situation that the checking and the control are not timely occurs, which causes the following problems: 1. the water replenishing valve is not closed timely, so that the liquid level in the medium adding tank is too high and the medium adding pump motor is flooded by water; 2. the water replenishing valve is not opened timely, so that the liquid level in the medium adding tank is lower than the liquid level of a water inlet of the medium adding pump, and the medium adding pump idles to damage a pump body; 3. the medium adding pump is not closed timely, so that the medium adding barrel overflows, and the frequent accidents seriously affect the production; 4. the related equipment needs to be frequently paid attention and controlled by manpower, manpower and material resources are wasted, financial resources are saved, and the cost is high.
The utility model has the following contents:
the utility model aims to provide a medium adding control system capable of realizing automatic control.
The utility model is implemented by the following technical scheme: the medium adding control system comprises a high-level floating ball switch, a low-level floating ball switch, a medium adding pump floating ball switch, a circuit breaker, a thermal relay, a contactor, an intermediate relay and a time relay, wherein the medium adding pump floating ball switch is arranged in a medium adding pool above an inlet of a medium adding pump, and the high-level floating ball switch and the low-level floating ball switch are respectively arranged above and below the inside of a medium barrel;
the circuit breaker, the main contact of the thermal relay, the main normally open contact of the contactor and the motor of the medium adding pump are connected in series and then are connected with an external power supply;
one end of a normally closed contact of the thermal relay is connected with a phase line of an external power supply, the other end of the normally closed contact of the thermal relay is connected with one end of a first normally closed contact of a high-position floating ball switch, and the other end of the first normally closed contact of the high-position floating ball switch is respectively connected with one end of the first normally closed contact of the low-position floating ball switch, one end of a normally open contact of the intermediate relay, one end of a normally open contact of the time relay and one end of a first auxiliary normally open contact of the contactor;
the other end of the first normally closed contact of the low-position floating ball switch is connected with the other end of the normally open contact of the intermediate relay in parallel and then is respectively connected with the first auxiliary normally closed contact of the contactor, one end of the water injection valve coil and one end of the coil of the intermediate relay; a first auxiliary normally closed contact of the contactor is connected with one end of a coil of the time relay;
the other end of the coil of the time relay, the other end of the coil of the water replenishing valve and the other end of the coil of the intermediate relay are connected with a zero line of an external power supply;
the other end of the normally open contact of the time relay is connected with the other end of the first auxiliary normally open contact of the contactor in parallel and then is connected with a neutral line in series with a medium adding pump floating ball switch and a coil of the contactor.
Furthermore, a second normally closed contact of the high-position floating ball switch, a second normally open contact of the low-position floating ball switch and the half-barrel indicating lamp are connected between the phase line and the zero line after being connected in series.
Furthermore, a second auxiliary normally-open contact of the contactor is connected with the feeding indicator lamp in series and then is connected with the half-barrel indicator lamp in parallel.
Further, a second auxiliary normally closed contact of the contactor is connected with the non-feeding indicator lamp in series and then connected with the half-barrel indicator lamp in parallel.
Furthermore, a second normally closed contact of the low-position float switch is connected in series with the alarm lamp and then is connected between the phase line and the zero line.
Further, a first normally open contact of the high-position float switch is connected with the full barrel indicating lamp) in series and then is connected between the phase line and the zero line.
The utility model has the advantages that: by arranging the medium adding pump floating ball switch, the high-level floating ball switch and the low-level floating ball switch, the liquid level of the medium barrel can be detected in time, the medium adding pump is controlled to work, the liquid level of the medium barrel is ensured, and the medium adding system works normally; meanwhile, the medium adding pump can be controlled to be started only under the condition that the liquid level of the medium adding pool is positioned above the inlet of the medium adding pump, the idling of the medium adding pump can be avoided, in addition, the water replenishing valve can be synchronously closed under the condition that the medium adding pump stops working, the phenomenon that the liquid level in the medium adding pool is overhigh and the medium adding pump and a motor thereof are flooded is avoided, and the service life of the medium adding pump is ensured.
Description of the drawings:
FIG. 1 is a diagram of an intervention system.
Fig. 2 is a diagram of a medium addition control system in embodiment 1.
Fig. 3 is a diagram of a medium addition control system in embodiment 2.
The device comprises a medium adding pump 1, a medium adding pool 2, a medium barrel 3, a water replenishing valve 4, a high-level float switch A, a low-level float switch B, a medium adding pump float switch C, a breaker QF, a thermal relay FR, a contactor KM, an intermediate relay KA, a time relay KT, a half barrel indicator lamp L1, a feeding indicator lamp L2, an unfieed indicator lamp L3, an alarm lamp L4 and a full barrel indicator lamp L5.
The specific implementation mode is as follows:
example 1: as shown in fig. 1 and 2, the medium adding control system comprises a high-level float switch a, a low-level float switch B, a medium adding pump float switch C, a breaker QF, a thermal relay FR, a contactor KM, an intermediate relay KA and a time relay KT, wherein the medium adding pump float switch C is arranged in a medium adding pool 2 above an inlet of a medium adding pump 1, and the high-level float switch a and the low-level float switch B are respectively arranged above and below the inside of a medium barrel 3;
the main contacts of the breaker QF and the thermal relay FR and the main normally open contact of the contactor KM are connected in series with the motor of the medium adding pump 1 and then are connected with an external power supply;
one end of a normally closed contact of a thermal relay FR is connected with a phase line L of an external power supply, the other end of the normally closed contact of the thermal relay FR is connected with one end of a first normally closed contact of a high-position floating ball switch A, and the other end of the first normally closed contact of the high-position floating ball switch A is respectively connected with one end of a first normally closed contact of a low-position floating ball switch B, one end of a normally open contact of an intermediate relay KA, one end of a normally open contact of a time relay KT and one end of a first auxiliary normally open contact of a contactor KM;
the other end of the first normally closed contact of the low-level float switch B is connected with the other end of the normally open contact of the intermediate relay KA in parallel and then is respectively connected with the first auxiliary normally closed contact of the contactor KM, one end of the coil of the water injection valve and one end of the coil of the intermediate relay KA; a first auxiliary normally closed contact of the contactor KM is connected with one end of a coil of the time relay KT;
the other end of the coil of the time relay KT, the other end of the coil of the water replenishing valve 4 and the other end of the coil of the intermediate relay are connected with a zero line N of an external power supply;
the other end of a normally open contact of the time relay KT is connected in parallel with the other end of a first auxiliary normally open contact of the contactor KM and then is connected in series with a floating ball switch C of the medium adding pump and a coil of the contactor KM to be connected with a zero line N.
Description of the control process:
when the liquid level in the medium barrel 3 is below the low-level float switch B and the liquid level in the medium adding pool 2 is lower than the medium adding pump float switch C, the floating balls of the high-level float switch A, the low-level float switch B and the medium adding pump float switch C are all in a sinking state, the first normally closed contact of the high-level float switch A and the first normally closed contact of the low-level float switch B are all closed, the normally open contact of the medium adding pump float switch C is opened, and the first auxiliary normally closed contact of the contactor KM is in a closed state;
at the moment, a coil of the time relay KT, a coil of the water replenishing valve 4 and a coil of the intermediate relay KA are all electrified, the water replenishing valve 4 is opened to inject water into the medium adding pool 2, meanwhile, a normally open contact of the intermediate relay KA is closed to form self locking, when the set time of the time relay is reached (the time can be set according to the actual situation, and the time is in a time range, the liquid level of the medium adding pool 2 is higher than that of a float switch C of the medium adding pump, namely higher than the liquid level of a pump inlet of the medium adding pump 1, and is not prone to submerging the medium adding pump 1 and a motor thereof), and the normally open contact of the time relay KT is closed in a delayed mode;
when the liquid level in the medium adding pool 2 rises to the floating ball of a floating ball switch C of the medium adding pump, the normally open contact is closed, and the first auxiliary normally open contact of the contactor KM is closed to form self-locking; and the main contact of the contactor KM is closed, the medium adding pump 1 starts to work, and the medium in the medium adding pool 2 is pumped into the medium barrel 3;
when the liquid level in the medium barrel 3 rises to the floating ball of the low-level float switch B and floats upwards, the first normally closed contact is disconnected; when the liquid level in the medium barrel 3 rises to the floating ball of the high-level float switch A and floats upwards, the first normally-auxiliary closed contact is disconnected, the medium adding pump 1 stops working, and the water supplementing valve 4 is closed at the same time.
In the running process of the system, under the conditions that the liquid level of the medium adding pool 2 is higher than the inlet of the medium adding pump 1 and the medium adding pump float switch C is closed, and the liquid level in the medium barrel 3 is lower than the low-level float switch B, the medium adding pump 1 can be directly started to supplement water into the medium barrel 3; however, when the liquid level in the medium adding pool 2 is lower than the inlet of the medium adding pump 1 and the float switch C of the medium adding pump is turned on, the medium adding pump 1 can start to operate only if enough water is added into the medium adding pool 2; the system can realize automatic control of the medium adding pump 1 by monitoring the liquid level of the medium barrel 3, and can avoid idling of the medium adding pump by adding the medium adding pump float switch C.
Example 2: as shown in fig. 3, the overall structure is the same as that of embodiment 1, except that a related indicator light is added for the convenience of the staff to check, specifically, the second normally closed contact of the high float switch a and the first normally open contact of the low float switch B are connected in series with the half-barrel indicator light L1 and then connected between the phase line L and the zero line N. When the liquid level in the medium barrel 3 is positioned between the high-level and low-level float switches, the floating ball of the low-level float switch B floats upwards, the floating ball of the high-level float switch A sinks, and the corresponding half barrel indicator light L1 lights.
The second auxiliary normally-open contact of the contactor KM is connected with the feeding indicator lamp L2 in series and then connected with the half-barrel indicator lamp L1 in parallel. When the liquid level in the medium barrel 3 is positioned between the high-level float switches and the medium adding pump 1 works, the second auxiliary normally open contact of the contactor KM is closed, and the feeding indicator lamp L2 is lightened.
The second auxiliary normally closed contact of contactor KM is connected in series with non-feeding indicator lamp L3 and then in parallel with half barrel indicator lamp L1. When the liquid level in the medium barrel 3 is between the high-low float switches and the medium adding pump 1 does not work, the second auxiliary normally closed contact of the contactor KM is closed, and the non-feeding indicator lamp L3 is lightened.
And a second normally closed contact of the low float switch B is connected in series with an alarm lamp L4 and then is connected between the phase line L and the zero line N. When the liquid level in the medium barrel 3 is lower than the low float switch B, the second normally closed contact is closed, and the alarm lamp L4 is lighted.
A first normally open contact of the high-position float switch A is connected in series with a full barrel indicator lamp L5 and then is connected between a phase line L and a zero line N. When the liquid level in the medium barrel 3 reaches the high-level float switch A, the float ball rises, the corresponding first normally open contact is closed, and the full barrel indicator light L5 is lightened.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The medium adding control system is characterized by comprising a high-position float switch (A), a low-position float switch (B), a medium adding pump float switch (C), a circuit breaker (QF), a thermal relay (FR), a contactor (KM), an intermediate relay (KA) and a time relay (KT), wherein the medium adding pump float switch (C) is arranged in a medium adding pool (2) above an inlet of a medium adding pump (1), and the high-position float switch (A) and the low-position float switch (B) are respectively arranged above and below the inside of a medium barrel (3);
the main contacts of the circuit breaker (QF) and the thermal relay (FR) and the main normally open contact of the contactor (KM) are connected with the motor of the medium adding pump (1) in series and then connected with an external power supply;
one end of a normally closed contact of the thermal relay (FR) is connected with a phase line (L) of an external power supply, the other end of the normally closed contact of the thermal relay (FR) is connected with one end of a first normally closed contact of a high-position floating ball switch (A), and the other end of the first normally closed contact of the high-position floating ball switch (A) is connected with one end of a first normally closed contact of the low-position floating ball switch (B), one end of a normally open contact of the intermediate relay (KA), one end of a normally open contact of the time relay (KT) and one end of a first auxiliary normally open contact of the contactor (KM) respectively;
the other end of the first normally closed contact of the low-level floating ball switch (B) is connected with the other end of the normally open contact of the intermediate relay (KA) in parallel and then is respectively connected with the first auxiliary normally closed contact of the contactor (KM), one end of a water replenishing valve coil and one end of a coil of the intermediate relay (KA); a first auxiliary normally closed contact of the contactor (KM) is connected with one end of a coil of the time relay (KT);
the other end of the coil of the time relay (KT), the other end of the coil of the water replenishing valve (4) and the other end of the coil of the intermediate relay are connected with a zero line (N) of an external power supply;
the other end of the normally open contact of the time relay (KT) is connected with the other end of the first auxiliary normally open contact of the contactor (KM) in parallel and then is connected with a medium pump float switch (C) in series, and the coil of the contactor (KM) is connected with a zero line (N) in series.
2. The medium adding control system according to claim 1, wherein a second normally closed contact of the high-position float switch (A), a second normally open contact of the low-position float switch (B) and a half-barrel indicator lamp (L1) are connected in series and then connected between the phase line (L) and the zero line (N).
3. The medium adding control system according to claim 2, wherein the second auxiliary normally open contact of the contactor (KM) is connected in series with the feeding indicator lamp (L2) and then connected in parallel with the half-barrel indicator lamp (L1).
4. The medium feeding control system according to claim 2 or 3, wherein the second auxiliary normally closed contact of the contactor (KM) is connected in series with the non-feeding indicator lamp (L3) and then connected in parallel with the half-barrel indicator lamp (L1).
5. The medium adding control system according to any one of claims 1 to 3, wherein a second normally closed contact of the low float switch (B) is connected in series with an alarm lamp (L4) and then is connected between the phase line (L) and the neutral line (N).
6. The medium adding control system according to claim 4, wherein the second normally closed contact of the low float switch (B) is connected in series with the alarm lamp (L4) and then is connected between the phase line (L) and the neutral line (N).
7. The medium adding control system according to claim 1, 2, 3 or 6, wherein the first normally open contact of the high float switch (A) is connected in series with the full barrel indicator lamp (L5) and then is connected between the phase line (L) and the zero line (N).
8. The medium adding control system according to claim 5, wherein a first normally open contact of the high float switch (A) is connected in series with the full bucket indicator lamp (L5) and then is connected between the phase line (L) and the zero line (N).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220725999.6U CN216956785U (en) | 2022-03-30 | 2022-03-30 | Dielectric control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220725999.6U CN216956785U (en) | 2022-03-30 | 2022-03-30 | Dielectric control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216956785U true CN216956785U (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220725999.6U Active CN216956785U (en) | 2022-03-30 | 2022-03-30 | Dielectric control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216956785U (en) |
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2022
- 2022-03-30 CN CN202220725999.6U patent/CN216956785U/en active Active
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