CN205210708U - Coal bunker contains detection and control system of coal volume - Google Patents
Coal bunker contains detection and control system of coal volume Download PDFInfo
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- CN205210708U CN205210708U CN201520971708.1U CN201520971708U CN205210708U CN 205210708 U CN205210708 U CN 205210708U CN 201520971708 U CN201520971708 U CN 201520971708U CN 205210708 U CN205210708 U CN 205210708U
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- coal
- liquid level
- coal bunker
- level relay
- control system
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Abstract
The utility model discloses a coal bunker contains detection and control system of coal volume, include liquid level relay (5), relay control system and arrange in a plurality of copper bar (2) of coal bunker (1) top that the copper bar is used for detecting the coal volume that contains in the coal bunker to be connected through cable and liquid level relay, according to the work that contains coal flow control feeder in the coal bunker whether the cooperation of copper bar and liquid level relay is used, the utility model discloses utilizing the theory of operation of liquid level relay, having designed feeder automatic control system, according to the measuring circumstances of the coal bunker volume of including the coal, whether the work of control feeder, has guaranteed the normal coal supply of coal bunker, avoids the circumstances that the coal bunker does not have coal or full appearing, has guaranteed mine hoisting safety, has reduced the accident rate, has improved economic benefits and security.
Description
Technical field
The utility model relates to a kind of coal supply system, and specifically a kind of coal bunker is containing the measurement and control system of coal amount, belongs to coal supply system technical field.
Background technology
At present, what the motor in main hoist system feeder adopted is a 18.5KW three-phase squirrel-cage induction motor, and by power supply 80 switch control rule.The control of an existing feeder is post work Non-follow control, and when main shaft is carried after coal starts, post work manually opened feeder power supply 80 switch, a feeder starts coal supply.But in actual mechanical process, owing to being manual operation, error is comparatively large, often there will be accident, is mainly reflected in:
(1) if main shaft end opening coal bunker is bought securities with all one's capital, very large hidden danger will be caused to device security;
(2) if main shaft end opening coal bunker hole capital after selling all securities, normally coal is carried by what directly have influence on main shaft winch.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of coal bunker containing the measurement and control system of coal amount, can guarantee the normal coal supply of coal bunker, there will not be coal bunker without coal or the situation of buying securities with all one's capital, mine hoisting safety can be ensured, reduce accident rate, can increase economic efficiency and security.
To achieve these goals, a kind of coal bunker that the utility model adopts is containing the measurement and control system of coal amount, comprise liquid level relay, relay control system and be arranged in several copper bars above coal bunker, described copper bar for detect in coal bunker containing coal amount, and to be connected with liquid level relay by cable; Copper bar and liquid level relay with the use of, according to whether controlling the work of feeder containing coal amount in coal bunker.
When the coal in coal bunker rises and contacts copper bar, liquid level relay is by action immediately, and normal opened contact closes, and normally closed contact disconnects, and controls the operation that 80 switches stop feeder.
When the coal in coal bunker drop to do not touch copper bar time, the normal opened contact of liquid level relay remains open state, normally closed contact keep normally off, after time delay a period of time, control 80 switch activated feeder coal supplies.
Preferably, described delay time is eight minutes.
Preferably, described liquid level relay is JYB-714 type liquid level relay.
Compared with prior art, the utility model utilizes the principle of work of liquid level relay, devises Automatic control system of coal feeder, includes the detection case of coal amount according to coal bunker, and whether the work of control feeder.When rising and contact two copper bars in coal position, because coal has certain humidity, liquid level relay is by action immediately, and normal opened contact closes, and length is closed to get an electric shock and disconnected, and controls 80 switches and stops feeders running.When the coal in coal bunker drop to do not touch copper bar time, the normal opened contact of liquid level relay remains open state, normally closed contact keep normally off, after time delay a period of time, control 80 switch activated feeder coal supplies.Finally, ensure that the normal coal supply of coal bunker, avoid occurring that coal bunker is without coal or the situation of buying securities with all one's capital, ensure that mine hoisting safety, decrease accident rate, improve economic benefit and security.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that liquid level relay is for the wiring diagram in water-level simulation automatic control system;
Fig. 3 is electrical schematic diagram of the present utility model;
Fig. 4 is controlling party block diagram of the present utility model.
In figure: 1, coal bunker, 2, copper bar, 3, cable, 4, relay control system, 5, liquid level relay.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of coal bunker is containing the measurement and control system of coal amount, comprise liquid level relay 5, relay control system 5 and be arranged in several copper bars 2 above coal bunker 1, described copper bar 2 for detect in coal bunker 1 containing coal amount, and to be connected with liquid level relay 5 by cable; Copper bar 2 and liquid level relay 5 with the use of, according to whether controlling the work of feeder containing coal amount in coal bunker 1.
When the coal in coal bunker 1 rises and contacts copper bar 2, liquid level relay 5 is by action immediately, and normal opened contact closes, and normally closed contact disconnects, and controls the operation that 80 switches stop feeder.
When the coal in coal bunker 1 drop to do not touch copper bar 2 time, the normal opened contact of liquid level relay 5 remains open state, normally closed contact keep normally off, after time delay a period of time, control 80 switch activated feeder coal supplies.
Embodiment:
Above-mentioned liquid level relay 5 can adopt JYB-714 type liquid level relay, and described JYB-714 type liquid level relay is applicable to exchange in the automatic control of liquid circuit of 50Hz, specified control below power supply 380V.Liquid level relay is used for the wiring diagram of water-level simulation automatic control system as shown in Figure 2, this liquid level relay adopts 220V ac power supply, adopt two wire monitoring liquid levels, two one, wires are arranged on container bottom, one is arranged on upper vessel portion, and after liquid level is elevated to contact top wire, in liquid level relay, normal opened contact closes, after liquid level decline does not contact top wire, closed contact discharges immediately.
The principle of work of JYB-714 type liquid level relay is applied in the utility model, as shown in Figure 1, Figure 3 and Figure 4, two detection wires of liquid level relay can use 3*2.5 square of cable, and cable naturally droops and is fixed on above coal bunker 1, and cable 3 bottom connects the long copper bar 2 of 400mm.
Relay circuit is adopted to control startup and the stopping of power supply 80 switch.As shown in Figure 3, when not buying securities with all one's capital, pressing start button SB2 can manually opened feeder, and pressing stop button SB1 can manually stop feeder running.Under automatic operational mode, if the coal in coal bunker does not rise to two copper bars, then liquid level relay MCJK1 disconnects, and liquid level relay MCJK2 closes, then auxiliary reclay JK dead electricity, time relay KT obtains electric.Relay closes after time delay certain hour, controls 80 switch activated feeder coal supplies.Through measuring and calculating, main shaft end opening coal bunker one storehouse coal can meet winch and at least promote 8 minutes, so time delay 8 minutes startup feeders, the frequent starting both having avoided feeder stops, and in turn ensure that main shaft hooist coal supply.If coal bin coal position rises to touch two detection copper bars, because coal has certain humidity, liquid level relay is by action immediately, then liquid level relay MCJK1 closes, and liquid level relay MCJK2 disconnects, and relay J K obtains electric, normally closed contact disconnects, and controls 80 switches and stops feeder running.After coal position drops to and do not touch copper bar, feeder time delay is opened for 8 minutes, like this, feeder back and forth runs, and guarantees the normal coal supply of coal bunker, there will not be coal bunker without coal or the situation of buying securities with all one's capital, ensure that mine hoisting safety, decrease accident rate, obtain good economic benefit and safety benefit.The detection of this liquid level relay is sensitive, reliable in action, confirms through our repetition test: after two detection copper bars touch coal bunker coal simultaneously, relay energy action message.
From said structure, the utility model utilizes the principle of work of liquid level relay, includes coal amount detect coal bunker, and the work controlling feeder whether.When rising and contact two copper bars in coal position, because coal has certain humidity, liquid level relay is by action immediately, and normal opened contact closes, and length is closed to get an electric shock and disconnected, and controls 80 switches and stops feeders running.When the coal in coal bunker drop to do not touch copper bar time, the normal opened contact of liquid level relay remains open state, normally closed contact keep normally off, after time delay a period of time, control 80 switch activated feeder coal supplies.Finally, ensure that the normal coal supply of coal bunker, avoid occurring that coal bunker is without coal or the situation of buying securities with all one's capital, ensure that mine hoisting safety, decrease accident rate, improve economic benefit and security.
Claims (5)
1. a coal bunker is containing the measurement and control system of coal amount, it is characterized in that, comprise liquid level relay (5), relay control system and be arranged in several copper bars (2) of coal bunker (1) top, described copper bar (2) for detect in coal bunker (1) containing coal amount, and to be connected with liquid level relay (5) by cable; Copper bar (2) and liquid level relay (5) with the use of, according to whether controlling the work of feeder containing coal amount in coal bunker (1).
2. a kind of coal bunker according to claim 1 is containing the measurement and control system of coal amount, it is characterized in that, when the coal in coal bunker (1) rises and contacts copper bar (2), liquid level relay (5) is by action immediately, normal opened contact closes, normally closed contact disconnects, and controls the operation that 80 switches stop feeder.
3. a kind of coal bunker according to claim 1 is containing the measurement and control system of coal amount, it is characterized in that, when the coal in coal bunker (1) drop to do not touch copper bar (2) time, the normal opened contact of liquid level relay (5) remains open state, normally closed contact keeps normally off, after time delay a period of time, control 80 switch activated feeder coal supplies.
4. a kind of coal bunker according to claim 3 is containing the measurement and control system of coal amount, and it is characterized in that, described delay time is eight minutes.
5. a kind of coal bunker according to claim 1 is containing the measurement and control system of coal amount, and it is characterized in that, described liquid level relay (5) is JYB-714 type liquid level relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971708.1U CN205210708U (en) | 2015-11-27 | 2015-11-27 | Coal bunker contains detection and control system of coal volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520971708.1U CN205210708U (en) | 2015-11-27 | 2015-11-27 | Coal bunker contains detection and control system of coal volume |
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| Publication Number | Publication Date |
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| CN205210708U true CN205210708U (en) | 2016-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417192A (en) * | 2015-11-27 | 2016-03-23 | 上海大屯能源股份有限公司江苏分公司 | Automatic coal feed control system for coal feeder |
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2015
- 2015-11-27 CN CN201520971708.1U patent/CN205210708U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417192A (en) * | 2015-11-27 | 2016-03-23 | 上海大屯能源股份有限公司江苏分公司 | Automatic coal feed control system for coal feeder |
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