CN203823772U - Control system for pushing fire grate of garbage incinerator - Google Patents
Control system for pushing fire grate of garbage incinerator Download PDFInfo
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- CN203823772U CN203823772U CN201420250481.7U CN201420250481U CN203823772U CN 203823772 U CN203823772 U CN 203823772U CN 201420250481 U CN201420250481 U CN 201420250481U CN 203823772 U CN203823772 U CN 203823772U
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Abstract
The utility model provides a control system for a pushing fire grate of a garbage incinerator and relates to a hydraulic control system. The control system comprises the hydraulic control system and two identical pushing devices, wherein the two identical pushing devices are arranged side by side; the hydraulic control system comprises two pull cord displacement sensors, a hydraulic station, two three-position four-way reversing valves, two proportional valves, two throttling valves and four check valves. The two pull cord displacement sensors are mounted on fixed supports of the two pushing devices respectively. The control system is novel in structure, reasonable in design, reliable in operation, high in automation degree, free of control by operating personnel and capable of achieving automatic quantitative feeding; The control system avoids frequent operation by the operating personnel and reduces labor intensity.
Description
Technical field
The utility model relates to a kind of hydraulic control system, a kind of control system of incinerator pusher fire grate.
Background technology
The motion control of incinerator pusher fire grate is control system important in incinerator running, for controlling the volume of speed and the pusher of pusher, determines feeding coal, and then the operating mode of impact burning.At present, the feeding coal of the on-the-spot uncontrollable incinerator of pusher stocker control mode using, causes interior feeding coal of unit interval unstable, affects Combustion Operation of Boilers.
Utility model content
The purpose of this utility model is to provide a kind of without operator control, the control system for incinerator pusher fire grate of automatic ration feed.
The technical scheme that realizes above-mentioned purpose is: a kind of control system of incinerator pusher fire grate, comprise two material-pulling devices identical and that be set up in parallel and hydraulic control system, described material-pulling device comprises horizontally disposed pusher platform, hold-down support and hydraulic cylinder, on pusher platform, be provided with and promote the hydraulic cylinder that pusher platform moves horizontally, the telescopic end of hydraulic cylinder is fixedly connected with pusher platform, tail end is fixed on hold-down support, it is characterized in that: hydraulic control system comprises two displacement sensor for pull ropes, Hydraulic Station, two three position four-way directional control valves, two proportioning valves, two choke valves and four check valves, on the hold-down support of two material-pulling devices, be separately installed with a displacement sensor for pull rope, stay cord one end of displacement sensor for pull rope is fixed with the pusher platform of corresponding material-pulling device, the pressure hydraulic fluid port P of described two three position four-way directional control valves is connected Hydraulic Station respectively with oil return inlet T, the actuator port A of two three position four-way directional control valves connects respectively a proportioning valve, the actuator port B of two three position four-way directional control valves connects respectively a choke valve, the oil-out of proportioning valve connects respectively the rodless cavity of a hydraulic cylinder, the oil-out of choke valve connects respectively the rod chamber of a hydraulic cylinder, the two ends of two proportioning valves and two choke valves are a check valve in parallel respectively, described two displacement transducers are controlled the aperture size of two proportioning valves for gathering the displacement signal of two pusher platforms.
The utility model novel structure, reasonable in design, reliable operation, automaticity is higher, without operator control, can realize automatic ration feed.
The utility model has been avoided operations staff's frequent operation, has reduced labour intensity.
Accompanying drawing explanation
Fig. 1 is the structural representation of material-pulling device;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is the fundamental diagram of hydraulic system.
The specific embodiment
As shown in Figure 1, 2, 3, the utility model comprises PLC controller 7, hydraulic control system 2 and two material-pulling devices 1 identical and that be set up in parallel.
Material-pulling device 1 comprises horizontally disposed pusher platform 3, displacement sensor for pull rope 6, hold-down support 4 and hydraulic cylinder 5, on pusher platform 3, be provided with and promote the hydraulic cylinder 5 that pusher platform 3 moves horizontally, the telescopic end of hydraulic cylinder 5 is fixedly connected with pusher platform 3, tail end is fixed on hold-down support 4, on the hold-down support 4 of two material-pulling devices 1, be separately installed with a displacement sensor for pull rope 6, stay cord one end of displacement sensor for pull rope 6 is fixing with the pusher platform of corresponding material-pulling device 13.
Hydraulic control system 2 comprises Hydraulic Station 8, two three position four-way directional control valves 9, two proportioning valves 12, two choke valves 10 and four check valves 11, the pressure hydraulic fluid port P of two three position four-way directional control valves 9 is connected Hydraulic Station 8 respectively with oil return inlet T, the actuator port A of two three position four-way directional control valves 9 connects respectively a proportioning valve 12, the actuator port B of two three position four-way directional control valves 9 connects respectively a choke valve 10, the oil-out of proportioning valve 12 connects respectively the rodless cavity of a hydraulic cylinder 5, the oil-out of choke valve 10 connects respectively the rod chamber of a hydraulic cylinder 5, the two ends of two proportioning valves 12 and two choke valves 10 are a check valve 11 in parallel respectively.
Two displacement transducers 6 are connected to the input of PLC controller 7, and the control end of two proportioning valve devices 12 and two three position four-way directional control valves 9 is all connected to the output of PLC controller 7.
During normal work, PLC controller 7 is controlled two three position four-way directional control valves 9 coil that advances and is obtained electric, pusher fire grate advances, PLC controller 7 gathers the value of feedback of two displacement sensor for pull ropes 6 and the displacement of two pusher platforms 3 is compared, and automatically calculate the aperture of two proportioning valves 12, two pusher platform 3 displacement differences are less than 10 millimeters.
When two pusher platform 3 shift values reach after setting value, two three position four-way directional control valves 9 retreat coil and obtain electricly, and pusher fire grate retreats.Pusher fire grate retreats to arrive and sets after displacement, two three position four-way directional control valve 9 power-off, and pusher fire grate stops.The actuation time of two pusher platforms 3 of PLC controller 7 record, and automatically calculate pusher interval time according to pusher setting value circulation timei.After pusher arrives interval time, PLC controller 7 is controlled two three position four-way directional control valves 9 coil that advances and is obtained electricly, and pusher fire grate advances, and carries out pusher do action next time.
Claims (1)
1. the control system of an incinerator pusher fire grate, comprise hydraulic control system and two material-pulling devices identical and that be set up in parallel, described material-pulling device comprises horizontally disposed pusher platform, hold-down support and hydraulic cylinder, on pusher platform, be provided with and promote the hydraulic cylinder that pusher platform moves horizontally, the telescopic end of hydraulic cylinder is fixedly connected with pusher platform, tail end is fixed on hold-down support, it is characterized in that: hydraulic control system comprises two displacement sensor for pull ropes, Hydraulic Station, two three position four-way directional control valves, two proportioning valves, two choke valves and four check valves, on the hold-down support of two material-pulling devices, be separately installed with a displacement sensor for pull rope, stay cord one end of displacement sensor for pull rope is fixed with the pusher platform of corresponding material-pulling device, the pressure hydraulic fluid port P of described two three position four-way directional control valves is connected Hydraulic Station respectively with oil return inlet T, the actuator port A of two three position four-way directional control valves connects respectively a proportioning valve, the actuator port B of two three position four-way directional control valves connects respectively a choke valve, the oil-out of proportioning valve connects respectively the rodless cavity of a hydraulic cylinder, the oil-out of choke valve connects respectively the rod chamber of a hydraulic cylinder, the two ends of two proportioning valves and two choke valves are a check valve in parallel respectively, described two displacement transducers are controlled the aperture size of two proportioning valves for gathering the displacement signal of two pusher platforms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250481.7U CN203823772U (en) | 2014-05-16 | 2014-05-16 | Control system for pushing fire grate of garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250481.7U CN203823772U (en) | 2014-05-16 | 2014-05-16 | Control system for pushing fire grate of garbage incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823772U true CN203823772U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250481.7U Active CN203823772U (en) | 2014-05-16 | 2014-05-16 | Control system for pushing fire grate of garbage incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823772U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848231A (en) * | 2015-05-12 | 2015-08-19 | 大连华锐重工集团股份有限公司 | Feed inlet device of garbage incinerator |
| CN109250477A (en) * | 2018-11-23 | 2019-01-22 | 四川川润液压润滑设备有限公司 | A kind of the pusher control system and method for dynamic buffering correction |
-
2014
- 2014-05-16 CN CN201420250481.7U patent/CN203823772U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848231A (en) * | 2015-05-12 | 2015-08-19 | 大连华锐重工集团股份有限公司 | Feed inlet device of garbage incinerator |
| CN104848231B (en) * | 2015-05-12 | 2017-03-01 | 大连华锐重工集团股份有限公司 | Incinerator feed inlet device |
| CN109250477A (en) * | 2018-11-23 | 2019-01-22 | 四川川润液压润滑设备有限公司 | A kind of the pusher control system and method for dynamic buffering correction |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |