CN214098197U - Rotary kiln coal feeding electrical control system - Google Patents
Rotary kiln coal feeding electrical control system Download PDFInfo
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- CN214098197U CN214098197U CN202022968722.XU CN202022968722U CN214098197U CN 214098197 U CN214098197 U CN 214098197U CN 202022968722 U CN202022968722 U CN 202022968722U CN 214098197 U CN214098197 U CN 214098197U
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- control system
- feeder
- rotor
- rotary kiln
- rotor scale
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Abstract
The utility model discloses a rotary kiln feeds coal electrical control system, weigh feeder, screw conveyer pump, supplementary conveyor and electrical control system including buggy storehouse, powder feeder, rotor of weighing, the input in buggy storehouse of weighing is connected with the input of powder feeder, and the output of powder feeder is connected with the input of rotor scale, the output of rotor scale is connected with the input of screw conveyer pump, the output of screw conveyer pump and rotary kiln burner's input are through coal conveying pipeline intercommunication, electrical control system's output is weighed storehouse, powder feeder, rotor respectively and is weighed feeder, screw conveyer pump and supplementary conveyor's input and be connected. The utility model discloses control reliability height, interference killing feature are strong, the operation is directly perceived simple and convenient, cost is with low costs, maintenance cost is low, energy-conservation, environmental protection.
Description
Technical Field
The utility model relates to a rotary kiln feeds coal electrical control technical field, especially relates to a rotary kiln feeds coal electrical control system.
Background
The control principle of the existing rotary kiln coal feeding electrical control system is that a signal processing unit collects, amplifies and converts field equipment sensor signals, then a simulation input port of a PLC is transmitted, then actual flow of coal powder is obtained through control processing operation, and quantitative feeding of the coal powder is achieved by adjusting the rotating speed of a rotor scale.
However, when the system is used in an industrial field, the influence of factors such as large dust, large vibration, strong electromagnetic interference and the like causes unstable output signals of the sensors, the rotor scale cannot accurately feed in a quantitative manner, and lower-level equipment is abnormal in work, pulverized coal is not fully combusted, coal consumption is increased, and production cost and environmental pollution are seriously influenced. Moreover, the original system has the defects of high manufacturing cost, high maintenance cost, inconvenient operation and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art system and being used for the industrial field, the dust is big, vibrations are big, factor influences such as electromagnetic interference is strong, makes sensor output signal unstable, the unable accurate dosing's of rotor scale problem, and the rotary kiln that proposes feeds coal electrical control system.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a rotary kiln feeds coal electrical control system, includes that buggy weighs storehouse, powder feeder, rotor weigh feeder, screw conveyer pump, supplementary conveyor and electrical control system, the input in buggy storehouse of weighing is connected with the input of powder feeder, and the output of powder feeder is connected with the input of rotor scale, the output of rotor scale is connected with the input of screw conveyer pump, the output of screw conveyer pump passes through coal conveying pipeline intercommunication with rotary kiln burner's input, electrical control system's output is connected with buggy storehouse of weighing, powder feeder, rotor weigh feeder, screw conveyer pump and supplementary conveyor's input respectively.
Preferably, the electrical control system comprises a PLC, a touch screen, a sensor and an electrical auxiliary system.
Preferably, the output ends of the sensor and the touch screen are connected with the input end of a PLC, and the output end of the PLC is connected with the input end of an electric auxiliary system.
Preferably, the electric auxiliary system comprises a rotor scale frequency converter and a feeder frequency converter, wherein the output end of the rotor scale frequency converter is connected with the input end of the rotor scale, and the output end of the feeder frequency converter is connected with the input end of the feeder.
Preferably, the touch screen comprises display functions of starting and stopping the feeder, starting and stopping the cooling fan of the feeder, starting and stopping the rotor scale, starting and stopping the cooling fan of the rotor scale, starting and stopping the screw pump, faults of the feeder, faults of the rotor scale, comprehensive faults and the like.
Preferably, the rotor scale frequency converter and the feeding machine frequency converter are both ACS510-01 in model.
Has the advantages that:
1. in the utility model, the original automatic control part is changed into relay control, the unstable factor of a sensor signal is avoided, the original digital input of a touch screen is changed into manual adjustment input, the combustion process requirement of the rotary kiln is met, the requirement is given according to the quantitative quantity of pulverized coal, the starting mode of a main motor is started according to the sequence of a screw conveyer pump, a rotor weighing feeder and a powder feeder, the main motor stops stopping according to the reverse sequence of the powder feeder, the rotor weighing feeder and the screw conveyer pump, and the fault protection of the comprehensive system stops;
2. the utility model discloses control reliability height, interference killing feature are strong, the operation is directly perceived simple and convenient, cost is with low costs, maintenance cost is low, energy-conservation, environmental protection.
Drawings
FIG. 1 is a schematic circuit diagram of an electrical control system for feeding coal to a rotary kiln according to the present invention;
FIG. 2 is a schematic circuit diagram of a rotor scale frequency converter of the rotary kiln coal feeding electrical control system provided by the utility model;
fig. 3 is a schematic diagram of a frequency converter circuit of a feeder of the rotary kiln coal feeding electrical control system.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, an electrical control system for coal feeding of a rotary kiln comprises a coal powder weighing bin, a powder feeder, a rotor weighing feeder, a screw conveying pump, an auxiliary conveying device and an electrical control system, wherein the input end of the coal powder weighing bin is connected with the input end of the powder feeder, the output end of the powder feeder is connected with the input end of a rotor scale, the output end of the rotor scale is connected with the input end of the screw conveying pump, and the output end of the screw conveying pump is communicated with the input end of a combustion device of the rotary kiln through a coal conveying pipeline;
in the embodiment, the output end of the electrical control system is respectively connected with the input ends of the pulverized coal weighing bin, the powder feeding machine, the rotor weighing feeding machine, the spiral conveying pump and the auxiliary conveying device, the electrical control system comprises a PLC, a touch screen, a sensor and an electrical auxiliary system, the output ends of the sensor and the touch screen are connected with the input end of the PLC, and the output end of the PLC is connected with the input end of the electrical auxiliary system;
in the embodiment, the electric auxiliary system comprises a rotor scale frequency converter and a feeder frequency converter, wherein the rotor scale frequency converter and the feeder frequency converter are respectively of an ACS510-01 type, the output end of the rotor scale frequency converter is connected with the input end of the rotor scale, and the output end of the feeder frequency converter is connected with the input end of the feeder;
in this embodiment, the touch screen includes the display functions such as the start and stop of the feeder, the start and stop of the cooling fan of the feeder, the start and stop of the rotor scale, the start and stop of the cooling fan of the rotor scale, the start and stop of the screw pump, the fault of the feeder, the fault of the rotor scale, and the comprehensive fault.
In the embodiment, power switches K, K1, K2 and K3 are firstly switched on before starting, a 3SB1 starting button is pressed, a coil of a contactor KM3 is electrified, a main contact KM3 is closed, an auxiliary contact is closed, self-locking interlocking is carried out, a screw pump is started, a screw pump starting indicator lamp is on, a 2SB1 starting button is pressed, coils of a relay KA2 and a contactor KM3 are electrified, a normally open contact KA2 is closed, self-locking interlocking is carried out, a main contact KM2 is closed, a rotor scale frequency converter and a rotor scale cooling fan are started, and a rotor scale starting indicator lamp is on;
in this embodiment, press 1SB1 start button, relay KA1, contactor KM1 coil get electric, and KA1 normally open contact closure self-locking interlocking, KM1 main contact are closed, and feeder converter, feeder cooling fan start, and feeder start indicator lights. The system boot is complete. Pressing a stop button of 1SB2, powering off coils of a relay KA1 and a contactor KM1, disconnecting a KA1 normally open contact, disconnecting a KM1 main contact, stopping a feeder frequency converter and a feeder cooling fan, and turning off a feeder indicator light;
in the embodiment, a 2SB2 stop button is pressed, the coils of the relay KA2 and the contactor KM2 lose power, a KA2 normally open contact is disconnected, a KM2 main contact is disconnected, a rotor scale frequency converter and a rotor scale cooling fan are stopped, and a rotor scale indicator lamp is turned off;
in the embodiment, a 3SB2 stop button is pressed, a coil of the contactor KM3 loses power, a main contact of KM3 is disconnected, an auxiliary contact is disconnected, the screw pump stops, and an indicator light of the screw pump is turned off. The system is shut down;
in the embodiment, when the feeder fails, a 1bpd fault output point of a feeder frequency converter is closed, a coil of a KA4 relay is electrified, a KA4 normally open contact switch is closed, a coil of a KA6 relay is electrified, a KA6 normally closed contact switch is disconnected, the feeder, a rotor scale, a feeder fan and a rotor scale fan are stopped, and a comprehensive fault lamp is turned on;
in the embodiment, when the rotor scale has a fault, a 2bpd fault output point of the rotor scale frequency converter is closed, a coil of a KA5 relay is electrified, a KA5 normally open contact is closed, a coil of a KA6 relay is electrified, a KA6 normally closed contact is disconnected, a feeder, a rotor scale, a feeder fan and a rotor scale fan are stopped, and a comprehensive fault lamp is turned on;
in this embodiment, when the screw pump breaks down, the normally closed contact of the thermal relay 1RJ is opened, the normally open closed point is closed, the screw pump is stopped, and the KA6 relay coil is electrified simultaneously, and the KA6 normally closed contact is opened, and feeder, rotor scale, feeder fan, rotor scale fan are stopped, and the comprehensive fault lamp is on.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a rotary kiln feeds coal electrical control system, includes that the buggy weighs storehouse, powder feeder, rotor and weighs feeder, screw feed pump, auxiliary conveyor and electrical control system, its characterized in that: the input end of the pulverized coal weighing bin is connected with the input end of the powder feeding machine, the output end of the powder feeding machine is connected with the input end of the rotor scale, the output end of the rotor scale is connected with the input end of the spiral delivery pump, the output end of the spiral delivery pump is communicated with the input end of the rotary kiln combustion device through a coal conveying pipeline, and the output end of the electric control system is connected with the input ends of the pulverized coal weighing bin, the powder feeding machine, the rotor weighing feeding machine, the spiral delivery pump and the auxiliary conveying device respectively.
2. The electrical rotary kiln coal feeding control system as claimed in claim 1, wherein: the electrical control system comprises a PLC, a touch screen, a sensor and an electrical auxiliary system.
3. The electrical rotary kiln coal feeding control system as claimed in claim 2, wherein: the output ends of the sensor and the touch screen are connected with the input end of the PLC, and the output end of the PLC is connected with the input end of the electric auxiliary system.
4. The electrical rotary kiln coal feeding control system as claimed in claim 2, wherein: the electric auxiliary system comprises a rotor scale frequency converter and a feeder frequency converter, wherein the output end of the rotor scale frequency converter is connected with the input end of the rotor scale, and the output end of the feeder frequency converter is connected with the input end of the feeder.
5. The electrical rotary kiln coal feeding control system as claimed in claim 2, wherein: the touch screen comprises display functions of starting and stopping the feeding machine, starting and stopping a cooling fan of the feeding machine, starting and stopping the rotor scale, starting and stopping the cooling fan of the rotor scale, starting and stopping the screw pump, faults of the feeding machine, faults of the rotor scale, comprehensive faults and the like.
6. The electrical rotary kiln coal feeding control system as claimed in claim 4, wherein: the rotor scale frequency converter and the feeder frequency converter are both ACS510-01 in model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022968722.XU CN214098197U (en) | 2020-12-11 | 2020-12-11 | Rotary kiln coal feeding electrical control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022968722.XU CN214098197U (en) | 2020-12-11 | 2020-12-11 | Rotary kiln coal feeding electrical control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214098197U true CN214098197U (en) | 2021-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022968722.XU Active CN214098197U (en) | 2020-12-11 | 2020-12-11 | Rotary kiln coal feeding electrical control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214098197U (en) |
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2020
- 2020-12-11 CN CN202022968722.XU patent/CN214098197U/en active Active
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