CN104331016A - Kiln electric dust collector discharge system - Google Patents
Kiln electric dust collector discharge system Download PDFInfo
- Publication number
- CN104331016A CN104331016A CN201410574844.7A CN201410574844A CN104331016A CN 104331016 A CN104331016 A CN 104331016A CN 201410574844 A CN201410574844 A CN 201410574844A CN 104331016 A CN104331016 A CN 104331016A
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- Prior art keywords
- discharger
- switch
- plc
- discharge system
- level switch
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The invention discloses a kiln electric dust collector discharge system which comprises an electric dust collector and more than one ash hopper communicated with the electric dust collector. A discharger and a discharger motor are arranged below each ash hopper, the discharger motor drives the discharger to work, a level switch for monitoring the height of level is arranged on the side wall of each ash hopper, and the position of each low level switch is higher than the bottom of the corresponding ash hopper. By the aid of the material seal principle, air locking can be realized, air leakage can be decreased, the level switches are respectively connected with an input end of a PLC (programmable logic controller), an output end of the PLC controls the discharger motor through a control circuit, so that the discharger motor only works when in discharge, and electricity is saved.
Description
Technical field
The present invention relates to a kind of kiln hood electricity to gather dust discharge system, belong to field of cement preparation.
Background technology
When current energy scarcity, all conglomeraties are all paid much attention to energy-saving and cost-reducing, particularly cement industry.For reducing coal consumption, power consumption to greatest extent, improving heat recovery rate, increasing cogeneration amount, improve exhaust gas utilization rate, therefore, the links on producing has carried out many-sided transformation innovation.At present, the inleakage of the electric discharger that gathers dust of kiln hood is considerable, and controlling leaking out of this part is also a problem demanding prompt solution; Meanwhile, the motor of the electric discharger that gathers dust of kiln hood is uninterrupted running continuously, and waste electricity, and have larger loss to motor and discharger, the power consumption of this part has larger reduction space.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of kiln hood electricity to gather dust discharge system, with reduce kiln hood electricity gather dust discharge system inleakage and reduce kiln hood electricity and to gather dust the power consumption of discharge system.
In order to solve the technical problem, the technical solution used in the present invention is: a kind of kiln hood electricity gathers dust discharge system, comprise electricity to gather dust, to gather dust the more than one ash bucket be connected with electricity, the discharger motor of a discharger and the work of a driving discharger is provided with below each ash bucket, described each ash bucket sidewall is provided with from top to bottom successively the limit state switch of monitoring material level height, high charge level switch and low stuff level switch, the position of low stuff level switch is higher than hopper bottom; Limit state switch, high charge level switch are connected with the input end of PLC respectively with low stuff level switch, and the output terminal of PLC controls discharger motor through control circuit.
Further, described control circuit comprises auxiliary reclay and contactor, the power supply of discharger motor was connected with three-phase supply through the normal battle of contactor, the coil of contactor and be connected to the two ends controlling power supply after being in series the normal battle of auxiliary reclay, the coil of auxiliary reclay is connected to the output terminal of PLC.
In order to show the duty of discharger, the two ends of described contactor coil are parallel with the high charge level pilot lamp of display discharger duty.
In order to the duty of discharger can be shown at system malfunctions alarm, comprise and be connected to the alarm bell controlling both ends of power, low material level pilot lamp and malfunction indicator lamp through the normal battle of different auxiliary reclay, the coil of auxiliary reclay is connected to the output terminal of PLC.
Report to the police and detection alarm circuit and equipment in order to alarm bell manually can be removed, comprise " the disappear bell " button of the input end being connected to PLC, " examination bell " button.
In order to work by Non-follow control discharger, comprise the discharger manual start switch of the input end being connected to PLC, the manual shutdown switch of discharger.
In order to change between automatic control mode and MANUAL CONTROL mode, comprise the switch for changing between automatic control mode and MANUAL CONTROL mode of the input end being connected to PLC.
In order to control the inleakage of the electric discharge system that gathers dust of kiln hood, the distance of described low stuff level switch and hopper bottom is more than or equal to 600mm, to reach the object of " material envelope principle ".
Further, described limit state switch (3), high charge level switch (4) and low stuff level switch (5) are Anti-rotation type material level switch.
Beneficial effect of the present invention: the present invention is provided with the high charge level switch of monitoring material level and low stuff level switch on the sidewall of ash bucket, can at cement when arriving high charge level switch, automatically discharging is carried out, when cement arrives low stuff level switch, automatic stopping discharging, therefore reduces the duration of runs of discharger and drive motor, reduces invalid power consumption, also can increase the service time of discharger, reduce maintenance expense; And the position of low stuff level switch is higher than hopper bottom, when stopping discharging, hopper bottom also has a certain amount of material, utilizes " material envelope principle ", effectively can reduce the inleakage of the electric discharge system that gathers dust of kiln hood.The present invention is also provided with limit state switch and warning device, can after " high charge level switch ", discharger and other equipment break down, and reaches high charge level and the situation of not discharging when occurring, starts warning device and also carry out discharging.The present invention is provided with discharger manual start switch, the manual shutdown switch of discharger and switch, mutually can switch between manual work pattern and automatic operation mode.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is PLC wiring diagram;
Fig. 3 is main loop circuit figure;
Fig. 4 is control loop circuit diagram;
In figure: 1, electricity gathers dust, 2, ash bucket, 3, limit state switch, 4, high charge level switch, 5, low stuff level switch, 6, discharger, 7, discharger motor.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described further and limit.
As shown in Figure 1, a kind of kiln hood electricity gathers dust discharge system, comprise electricity and gather dust 1,3 to gather dust 1 ash bucket be connected 2,3 discharger motors 7 laying respectively at 3 dischargers 6 below ash bucket 2 and drive discharger 6 to work with electricity, each ash bucket 2 sidewall is provided with from top to bottom successively the limit state switch 3 of monitoring material level height, high charge level switch 4 and low stuff level switch 5, the position of low stuff level switch 5 is higher than bottom ash bucket 2.As shown in Figure 2,3, 4, limit state switch 3, the high charge level switch 4 of each ash bucket 2 are connected with the input end of PLC respectively with low stuff level switch 5, the power supply of discharger motor M 1, M2, M3 is connected with three-phase supply through the normal battle of contactor KM1, KM2, KM3 respectively, be connected to the two ends controlling power supply after the coil of contactor KM1, KM2, KM3 is in series with the normal battle of auxiliary reclay KA1, KA2, KA3 respectively, the coil of auxiliary reclay KA1, KA2, KA3 is connected to the output terminal of PLC.Motor M 1, M2, M3 drive 1# discharger, 2# discharger, the work of 3# discharger respectively, and the two ends of each contactor coil are parallel with a high charge level pilot lamp L1-L3.
As shown in Figure 3; in order to protect motor; isolating switch is provided with between three-phase supply and the normal battle of contactor K; electrothermal relay is provided with between the normal battle of contactor and discharger motor; as 1# discharger motor M 1, three-phase supply first through circuit breaker Q F1, then series contactor KM1; connect electrothermal relay FR1 again, is finally connected to 1# discharger motor M 1.
As shown in Figure 2,4, in the present embodiment, comprise through the normal battle of auxiliary reclay KA4 be connected to control both ends of power alarm bell R, to be connected to the low material level pilot lamp L7-L9 that controls both ends of power through the normal battle of auxiliary reclay KA8, KA9, KA10 and to be connected to through the normal battle of auxiliary reclay KA5, KA6, KA7 and control the malfunction indicator lamp L4-L6 of both ends of power, the coil of auxiliary reclay is connected to the output terminal of PLC.
As shown in Figure 2, report to the police and detection alarm circuit and equipment in order to alarm bell R manually can be removed, in the present embodiment, comprise " examination bell " button of " disappear bell " button of the releasing alarm bell R warning of the input end being connected to PLC, detection alarm circuit and equipment.
As shown in Figure 2, in the present embodiment, comprising the discharger manual start switch of the input end being connected to PLC, the manual shutdown switch of discharger, also comprising the switch for changing between automatic control mode and MANUAL CONTROL mode of the input end being connected to PLC.
In the present embodiment, described low stuff level switch 5 is 600mm with the distance bottom ash bucket 2.In the present embodiment, described limit state switch 3, high charge level switch 4 and low stuff level switch 5 is Anti-rotation type material level switch, and this type stuff level switch is comparatively applicable to cement mill and uses.
In the present embodiment, described PLC selects siemens PLC, the CPU224 that CPU selects 14 input/10 relays to export, and in order to meet the needs of I/O point number, need expand an EM223 module.PLC system is installed in control box, and control box is installed on on-the-spot kiln hood recovery dust by electricity bucket side, when breaking down, to facilitate the operation of staff.
Below for 1# ash bucket, principle of work of the present invention is described: the side of 1# ash bucket installs high and low, each one of limit state switch additional, limit state switch 3 is installed on high charge level switch 4 top, in case because of after high charge level switch 4, discharger 6 and other equipment breaks down, the situation reaching high charge level and not discharging occurs.Guarantee bottom, the low stuff level switch 5 installation site bed of material is not less than 600mm, and reach the object of utilization " material envelope principle ", minimizing is leaked out.
Switch is forwarded to automatic control mode, after reaching high charge level in ash bucket 2, high charge level switch 4 is often made war closed, send high charge level signal, through being connected to the signal wire between high charge level switch 4 input point I0.2 corresponding to PLC, be sent to PLC, after the process of PLC controller, PLC output point Q0.0 closes, the auxiliary reclay coil KA1 be connected with this output point Q0.0 obtains electric, it often makes war closed, simultaneously, the contactor coil KM1 of corresponding control discharger motor M 1 obtains electric, it often makes war closed, then discharger motor M 1 and three-phase supply are connected, start working, start discharging, and the 1# ash bucket high charge level pilot lamp L1 being connected on contactor coil KM1 two ends must establish the light that starts by cable, represent that 1# discharger is just in discharging.
After cement reaches low material level, the normally closed disconnection of low stuff level switch 5, send low level signals, through being connected to the signal wire between low stuff level switch 5 input point I0.3 corresponding to PLC, be sent to PLC, after the process of PLC, the corresponding output point Q0.0 of PLC disconnects, the auxiliary reclay coil KA1 dead electricity be connected with this output point Q0.0, its disconnection of often making war, simultaneously, the contactor coil KM1 dead electricity of corresponding control discharger motor M 1, its disconnection of often making war, discharger motor M 1 and three-phase supply disconnect, out of service, discharging terminates.The output terminal Q0.7 simultaneously connecting low material level pilot lamp closes, and the auxiliary reclay KA8 coil that output terminal Q0.7 connects obtains electric, and it often makes war closed, and the low material level pilot lamp of 1# ash bucket starts L7 luminescence, represents that 1# discharger stops discharging.
When high charge level switch 4, when discharger or other equipment break down, to arrive after high charge level no longer blowing, ash bucket can be caused to continue buildup, the material level until reach capacity, after limit state switch 3 monitors limit state, normal battle closes, through being connected to the signal wire between limit state switch 3 input point I1.0 corresponding to PLC, be sent to PLC, after the process of PLC, the corresponding output point Q0.4 of PLC closes, the auxiliary reclay coil KA5 be connected with this output point Q0.4 obtains electric, it often makes war closed, the corresponding failure pilot lamp L4 being installed on field control case obtains lighting and sparkles, and output terminal Q0.3 closes, the auxiliary reclay KA4 coil be connected with this output point obtains electric, it often makes war closed, be connected to the alarm bell R that auxiliary reclay KA4 often makes war below to sound.Output terminal Q0.0 closes simultaneously, and discharger motor M 1 drives discharger to start discharging.Obtain after alerting signal until staff, press " disappear bell " button, output terminal Q0.3 disconnects, alarm bell R stop alarm, but output point Q0.4 still closes, and malfunction indicator lamp L4 can not stop flicker immediately, until after reaching low material level, just can stop flicker.
The present invention is also provided with switch, 1# discharger manual start switch, the manual shutdown switch of 1# discharger, when switch is transferred to MANUAL CONTROL mode, namely enters Non-follow control state.When pressing 1# discharger manual start switch, output point Q0.0 closes, and discharger motor M 1 is started working, drive 1# discharger to start working, when pressing the manual shutdown switch of 1# discharger, output point Q0.0 disconnects, discharger motor M 1 quits work, and 1# discharger stops discharging.
Above only describes ultimate principle of the present invention and preferred implementation, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection scope of the present invention.
Claims (9)
1. a kiln hood electricity gathers dust discharge system, comprise the more than one ash bucket (2) that electricity gathers dust (1), gather dust with electricity (1) is connected, a discharger 6 is provided with below each ash bucket (2)) and the discharger motor (7) that works of a driving discharger (6), it is characterized in that: described each ash bucket (2) sidewall is provided with from top to bottom successively the limit state switch (3) of monitoring material level height, high charge level switch (4) and low stuff level switch (5), the position of low stuff level switch (5) is higher than ash bucket (2) bottom; Limit state switch (3), high charge level switch (4) are connected with the input end of PLC respectively with low stuff level switch (5), and the output terminal of PLC controls discharger motor (7) through control circuit.
2. kiln hood electricity according to claim 1 gathers dust discharge system, it is characterized in that: described control circuit comprises auxiliary reclay and contactor, the power supply of discharger motor was connected with three-phase supply through the normal battle of contactor, the coil of contactor and be connected to the two ends controlling power supply after being in series the normal battle of auxiliary reclay, the coil of auxiliary reclay is connected to the output terminal of PLC.
3. kiln hood electricity according to claim 1 and 2 gathers dust discharge system, it is characterized in that: the two ends of described contactor coil are parallel with the high charge level pilot lamp of display discharger duty.
4. the kiln hood electricity according to claim 1 or 2 gathers dust discharge system, it is characterized in that: comprise and be connected to the alarm bell controlling both ends of power, low material level pilot lamp and malfunction indicator lamp through the normal battle of different auxiliary reclay, the coil of auxiliary reclay is connected to the output terminal of PLC.
5. kiln hood electricity according to claim 1 and 2 gathers dust discharge system, it is characterized in that: " examination bell " button of " disappear bell " button, detection alarm circuit and equipment that the releasing alarm bell comprising the input end being connected to PLC is reported to the police.
6. kiln hood electricity according to claim 1 gathers dust discharge system, it is characterized in that: comprise the discharger manual start switch of the Non-follow control discharger of the input end being connected to PLC, the manual shutdown switch of discharger.
7. kiln hood electricity gathers dust discharge system according to claim 1 or 5, it is characterized in that: the switch for changing between automatic control mode and MANUAL CONTROL mode comprising the input end being connected to PLC.
8. kiln hood electricity according to claim 1 gathers dust discharge system, it is characterized in that: described low stuff level switch (5) is more than or equal to 600mm with the distance of ash bucket (2) bottom.
9. kiln hood electricity according to claim 1 and 2 gathers dust discharge system, it is characterized in that: described limit state switch (3), high charge level switch (4) and low stuff level switch (5) are Anti-rotation type material level switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574844.7A CN104331016A (en) | 2014-10-25 | 2014-10-25 | Kiln electric dust collector discharge system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410574844.7A CN104331016A (en) | 2014-10-25 | 2014-10-25 | Kiln electric dust collector discharge system |
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| Publication Number | Publication Date |
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| CN104331016A true CN104331016A (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410574844.7A Pending CN104331016A (en) | 2014-10-25 | 2014-10-25 | Kiln electric dust collector discharge system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106743682A (en) * | 2016-12-28 | 2017-05-31 | 湖南慧峰环保科技开发有限公司 | For the PLC automatic control system of the continuous Geldart-D particle of low pressure |
-
2014
- 2014-10-25 CN CN201410574844.7A patent/CN104331016A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106743682A (en) * | 2016-12-28 | 2017-05-31 | 湖南慧峰环保科技开发有限公司 | For the PLC automatic control system of the continuous Geldart-D particle of low pressure |
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Application publication date: 20150204 |
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