CN202494130U - Automation control coal powder burning machine for bituminous mixing plant - Google Patents
Automation control coal powder burning machine for bituminous mixing plant Download PDFInfo
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- CN202494130U CN202494130U CN2012200876318U CN201220087631U CN202494130U CN 202494130 U CN202494130 U CN 202494130U CN 2012200876318 U CN2012200876318 U CN 2012200876318U CN 201220087631 U CN201220087631 U CN 201220087631U CN 202494130 U CN202494130 U CN 202494130U
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- coal dust
- programmable logic
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Abstract
The utility model relates to an automation control coal powder burning machine for a bituminous mixing plant and belongs to the field of highway construction. The automation control coal powder burning machine for the bituminous mixing plant comprises an original coal warehouse (7), a coal feeding device, a coal powder burning furnace (8) and a burning control device, wherein the coal powder burning furnace (8) is connected with a burning wind-supply device (6), the burning control device comprises a temperature detector (11), a flame monitoring device (12), an automation firing device (13) and a programmable logic controller (14), the temperature detector (11) is arranged on a flame jet port of the coal powder burning furnace (8), the flame monitoring device (12) and the automation firing device (13) are arranged inside a hearth of a coal powder inlet of the coal power burning furnace (8), signal output ends of the temperature detector (11) and the flame monitoring device (12) are respectively connected with signal acquisition input interfaces of the programmable logic controller (14), and a control interface of the programmable logic controller (14) is connected with a control end of the automation firing device (13). The automation control coal powder burning machine for the bituminous mixing plant has the advantages of high efficiency, low energy consumption, simple structure, full-automatic control and high control precision.
Description
Technical field
The utility model relates to a kind of bituminous mixing plant and controls the coal dust firing machine automatically, belongs to highway construction equipment.
Background technology
The combustion position of present bituminous mixing plant coal dust firing machine all is to rely on manual operation, changes the combusting coal fines amount and changes the wind supply quantity control of burning.For example: on December 12nd, 2007, disclosed " the bituminous concrete mixer coal powder burner " (see figure 1) of Chinese utility model patent Granted publication CN200989597Y by the applicant's development.Comprise that powder feeding airduct 4 links to each other with the charging aperture of coal dust furnace 8 by the frequency control transport that the mechanism that delivers coal, powder feeding blower fan 3 and powder feeding airduct 4 that mechanism 1 and vertical spindle coal pulveriser 2 constitute form of delivering coal.Its coal dust firing amount is to rely on the rotating speed of manual change's electromagnetic adjustable speed motor to realize, the rotating speed of the electromagnetic adjustable speed motor electromagnetic adjustable speed motor speed regulator 10 of delivering coal shows.The volume damper 5 that meanwhile, also will manually change combustion blower 6 carries out wind coal coupling.There is troublesome poeration in this coal dust firing machine commonly used, and control accuracy is low, the defective that efficiency of combustion is low.
Summary of the invention
The utility model problem to be solved is, provides a kind of bituminous mixing plant to control the coal dust firing machine automatically, has high efficiency, low energy consumption, simple in structure, Automatic Control and the high technique effect of control accuracy.
The technical scheme of the utility model is: a kind of bituminous mixing plant is controlled the coal dust firing machine automatically, and its part comprises raw coal warehouse, coal supply device, coal dust furnace and combustion control device; Be connected with the burning air supply device on the coal dust furnace; The coal supply device is made up of deliver coal mechanism and vertical spindle coal pulveriser of frequency control, and the raw coal warehouse connects vertical spindle coal pulveriser through the frequency control mechanism that delivers coal; A ventilation blower is equipped with in the bottom of vertical spindle coal pulveriser; The top of vertical spindle coal pulveriser is equipped with a powder feeding blower fan, and the powder feeding blower fan connects the burner hearth of coal dust furnace through the powder feeding airduct; Described combustion control device comprises Temperature Detector, flame monitoring apparatus, automatic ignition device and Programmable Logic Controller; Wherein Temperature Detector is installed in the flame jet place of coal dust furnace; Flame monitoring apparatus and automatic ignition device are installed in the burner hearth that enters coal dust mouth place of coal dust furnace; The signal output part of Temperature Detector, flame monitoring apparatus connects the signals collecting input interface of Programmable Logic Controller respectively; The control interface of Programmable Logic Controller connects the control end of automatic ignition device; Above-mentioned frequency control deliver coal mechanism with the burning air supply device 6 motor connect first frequency converter, second frequency converter respectively; First frequency converter links to each other with the control interface of Programmable Logic Controller with second frequency converter.
The first above-mentioned frequency converter and second frequency converter all are AC converters.
The above-mentioned frequency control mechanism that delivers coal is made up of motor band screw(-type) feeder.
Above-mentioned automatic ignition device; Supplying with two parts by high-field electrode igniting and diesel oil forms; High-field electrode ignition section is equipped with high voltage package and ignitor; Diesel oil supply unit branch is equipped with oil pump, control valve, fuel nozzle, and high voltage package all is connected with control circuit with control valve, and the control end of control circuit connects Programmable Logic Controller.
Above-mentioned Temperature Detector and flame monitoring apparatus are connected with alarm respectively.
On the above-mentioned Programmable Logic Controller touch-screen is arranged.
The utility model is supplied coal dust with the method that wind send to combustion furnace, begins from automatic igniting, supplies from the raw coal warehouse successively that raw coal, vertical spindle coal pulveriser grind coal dust, the powder of delivering coal is gone into the burner hearth burning, and whole process is all carried out automatically; After coal dust firing was normal, automatic ignition device can quit work automatically; When changing Coal-fired capacity, can change wind supply quantity by the coal-air ratio of setting automatically; Reach wind coal matched well.When burning does not reach when giving the working temperature of establishing, Temperature Detector can send warning, and combustor can improve the coal dust firing amount to promote combustion intensity automatically, reaches preset temperature.When the combustion process accident extinguishing, flame monitoring apparatus can send warning; The signals collecting of all these actions and processing are all accomplished by Programmable Logic Controller.It receives the signal of coal supply device, air feed blower fan, automatic ignition device, flame monitoring apparatus, Temperature Detector collection Programmable Logic Controller; And instruct the coordination of complete machine various piece after treatment; Realize the automatic course of work of coal dust firing machine, and the fault that possibly occur in the work of treatment.
The utility model blower fan is a blower fan by Frequency Converter Control; The frequency converter of blower fan links to each other with the Programmable Logic Controller of Automatic Centering Control again; Burning air supply device and coal supply device are under the control of Programmable Logic Controller; Form a cover and carry out the output system that the coal-air ratio example is regulated automatically, make flame be in best fired state all the time.
In sum; The utility model does not need to regulate manually Coal-fired capacity and wind supply quantity; But the Coal-fired capacity required according to operating mode; Automatically change Coal-fired capacity and wind supply quantity simultaneously by the coal-air ratio example of setting, to reach high efficiency, low energy consumption, simple in structure, Automatic Control and the high purpose of control accuracy.
Description of drawings
Fig. 1 is the conventional bituminous mixing plant coal dust firing mechanism structure figure of prior art.
Fig. 2 is the bituminous mixing plant full automatic pulverized coal burner structure figure of the utility model.
The 1 frequency control mechanism that delivers coal in the accompanying drawing; 2 vertical spindle coal pulverisers; 3 powder feeding blower fans; 4 powder feeding airducts; 5 volume dampers; 6 burning air supply devices; 7 raw coal warehouses; 8 coal dust furnaces; 9 ventilation blowers; The 10 electromagnetic adjustable speed motor speed regulators of delivering coal; 11 Temperature Detectors; 12 flame monitoring apparatus; 13 automatic ignition devices; 14 Programmable Logic Controllers; 15 first frequency converters; 16 second frequency converters.
The specific embodiment
Fig. 2 is the specific embodiments of the utility model.
Represent that at Fig. 2 a kind of bituminous mixing plant controls the coal dust firing machine automatically, its part comprises raw coal warehouse 7, coal supply device, coal dust furnace 8 and combustion control device; Be connected with burning air supply device 6 on the coal dust furnace 8; The coal supply device is made up of with 2 of vertical spindle coal pulverisers deliver coal mechanism 1 of frequency control, and raw coal warehouse 7 connects vertical spindle coal pulveriser 2 through the frequency control mechanism 1 that delivers coal; A ventilation blower 9 is equipped with in the bottom of vertical spindle coal pulveriser 2; The top of vertical spindle coal pulveriser 2 is equipped with a powder feeding blower fan 3, and powder feeding blower fan 3 connects the burner hearth of coal dust furnace 8 through powder feeding airduct 4; It is characterized in that: described combustion control device comprises Temperature Detector 11, flame monitoring apparatus 12, automatic ignition device 13 and Programmable Logic Controller 14; Wherein Temperature Detector 11 is installed in the flame jet place of coal dust furnace 8; Flame monitoring apparatus 12 is installed in the burner hearth that enters coal dust mouth place of coal dust furnace 8 with automatic ignition device 13; The signal output part of Temperature Detector 11, flame monitoring apparatus 12 connects the signals collecting input interface of Programmable Logic Controller 14 respectively; Programmable Logic Controller 14 is a core main body with CPU, and the control interface of Programmable Logic Controller 14 connects the control end of automatic ignition device 13; The deliver coal motor of mechanism 1 and burning air supply device 6 of above-mentioned frequency control connects first frequency converter 15, second frequency converter 16 respectively; First frequency converter 15 links to each other with the control interface of Programmable Logic Controller 14 with second frequency converter 16.
Described first frequency converter 15 and second frequency converter 16 all adopt AC converter.
During work; The ignitor of automatic ignition device 13 was got electric spark before this, and after the time-delay several seconds kind, the oil supply component of automatic ignition device 13 starts and sprays fuel oil from atomizer; Burn; Electronic striking and diesel combustion all carry out in coal dust furnace 8, behind the oil firing, and ignitor outage stopping sparking.Behind the fuel oil number minute, complete machine gets into duty, and coal dust and combustion fan are according to parameter entering coal dust furnace 8 normal combustion of setting, and the oil supply component of automatic ignition device 13 then quits work.
When the temperature departure design temperature that device for detecting temperature 11 measures, Programmable Logic Controller 14 sends instruction, changes coal supply amount and corresponding change wind supply quantity, makes temperature return setting value.Programmable Logic Controller 14 also connects a temperature alarming device, when receiving the temperature departure signal that device for detecting temperature 11 sends, sends sound, light is reported to the police.
In the operating mode, stop working suddenly when flame monitor 12 detects in the coal dust furnace, Programmable Logic Controller immediate instruction complete machine shuts down, and temperature alarming device correspondingly sends sound, light is reported to the police.Programmable Logic Controller 14 can be regulated the motor speed of coal supply device and the motor speed of burning air supply device 6 automatically according to the coal-air ratio parameter of setting, thereby realizes the Coal-fired capacity and the wind supply quantity of setting, reaches the high efficiency of fired state.
Claims (6)
1. a bituminous mixing plant is controlled the coal dust firing machine automatically, and its part comprises raw coal warehouse (7), coal supply device, coal dust furnace (8) and combustion control device; Be connected with burning air supply device (6) on the coal dust furnace (8); The coal supply device is made up of deliver coal mechanism (1) and vertical spindle coal pulveriser (2) of frequency control, and raw coal warehouse (7) connects vertical spindle coal pulveriser (2) through the frequency control mechanism (1) that delivers coal; A ventilation blower (9) is equipped with in the bottom of vertical spindle coal pulveriser (2); The top of vertical spindle coal pulveriser (2) is equipped with a powder feeding blower fan (3), and powder feeding blower fan (3) connects the burner hearth of coal dust furnace (8) through powder feeding airduct (4); It is characterized in that: described combustion control device comprises Temperature Detector (11), flame monitoring apparatus (12), automatic ignition device (13) and Programmable Logic Controller (14); Wherein Temperature Detector (11) is installed in the flame jet place of coal dust furnace (8); Flame monitoring apparatus (12) and automatic ignition device (13) are installed in the burner hearth that enters coal dust mouth place of coal dust furnace (8); The signal output part of Temperature Detector (11), flame monitoring apparatus (12) connects the signals collecting input interface of Programmable Logic Controller (14) respectively; The control interface of Programmable Logic Controller (14) connects the control end of automatic ignition device (13); Above-mentioned frequency control deliver coal mechanism (1) and the burning air supply device (6) motor connect first frequency converter (15), second frequency converter (16) respectively; First frequency converter (15) links to each other with the control interface of second frequency converter (16) with Programmable Logic Controller (14).
2. bituminous mixing plant according to claim 1 is controlled the coal dust firing machine automatically, it is characterized in that: described first frequency converter (15) and second frequency converter (16) all are to adopt AC converter.
3. bituminous mixing plant according to claim 1 is controlled the coal dust firing machine automatically, it is characterized in that: the described frequency control mechanism (1) that delivers coal is made up of motor and screw(-type) feeder.
4. bituminous mixing plant according to claim 1 is controlled the coal dust firing machine automatically; It is characterized in that: described automatic ignition device (13); Supply with two parts by high-field electrode igniting and diesel oil and form, high-field electrode ignition section is equipped with high voltage package and ignitor, and diesel oil supply unit branch is equipped with oil pump, control valve, fuel nozzle; High voltage package all is connected with control circuit with control valve, and the control end of control circuit connects Programmable Logic Controller (14).
5. bituminous mixing plant according to claim 1 is controlled the coal dust firing machine automatically, it is characterized in that: described Temperature Detector (11) and flame monitoring apparatus (12) are connected with alarm respectively.
6. bituminous mixing plant according to claim 1 is controlled the coal dust firing machine automatically, it is characterized in that: described Programmable Logic Controller has touch-screen on (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200876318U CN202494130U (en) | 2012-03-10 | 2012-03-10 | Automation control coal powder burning machine for bituminous mixing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200876318U CN202494130U (en) | 2012-03-10 | 2012-03-10 | Automation control coal powder burning machine for bituminous mixing plant |
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| Publication Number | Publication Date |
|---|---|
| CN202494130U true CN202494130U (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200876318U Expired - Fee Related CN202494130U (en) | 2012-03-10 | 2012-03-10 | Automation control coal powder burning machine for bituminous mixing plant |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223371A (en) * | 2013-04-15 | 2013-07-31 | 刘冰玉 | Coal mill air duct heating device |
| CN105135867A (en) * | 2015-09-02 | 2015-12-09 | 郑州鼎力新能源技术有限公司 | Novel combustion furnace for drying drum |
-
2012
- 2012-03-10 CN CN2012200876318U patent/CN202494130U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103223371A (en) * | 2013-04-15 | 2013-07-31 | 刘冰玉 | Coal mill air duct heating device |
| CN105135867A (en) * | 2015-09-02 | 2015-12-09 | 郑州鼎力新能源技术有限公司 | Novel combustion furnace for drying drum |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121017 Termination date: 20180310 |