CN2223790Y - Device for controlling bumping wheel of rotary kiln - Google Patents
Device for controlling bumping wheel of rotary kiln Download PDFInfo
- Publication number
- CN2223790Y CN2223790Y CN 94236574 CN94236574U CN2223790Y CN 2223790 Y CN2223790 Y CN 2223790Y CN 94236574 CN94236574 CN 94236574 CN 94236574 U CN94236574 U CN 94236574U CN 2223790 Y CN2223790 Y CN 2223790Y
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- oil
- circuit
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- rotary kiln
- valve
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Abstract
The utility model relates to a device for controlling a bumping wheel of a rotary kiln, which is mainly composed of a hydraulic system and an electric control system, wherein the hydraulic system comprises two sets of hydraulic lines which have same structures, can independently work and are spared to each other. Each of the hydraulic lines is composed of an oil pump, a pressure regulating loop, a reversing loop and a bridge type oil-feeding and oil-returning throttled speed regulating loop. The utility model is characterized in that an oil-feeding speed regulating loop and an oil-returning speed regulating loop are designed into a whole, and oil-feeding speed and oil-returning speed are controlled by the same speed regulating valve. Circuits of the electric control system are designed according to the hydraulic system, and each circuit is controlled by a programmable controller. The utility model has high reliability, automatic cycle operation and manual operation.
Description
The utility model belongs to the control gear of cement rotary kiln or chemical industry rotary kiln gear wheel, particularly a kind of control gear of hydraulic blocking wheel.
Rotary kiln is a capital equipment of producing cement and some chemical product (as phosphate fertilizer), because the kiln body tilts to place, scurries under must taking place under action of gravity during work.In order to ensure the life-span of rotary kiln tyre and driving gear, must control moving axially of rotary kiln body, it is moved up and down within the specific limits lentamente, the effect of Here it is gear wheel along axis.Gear wheel has mechanical gear wheel and hydraulic blocking wheel, and modern large-sized rotary kiln nearly all adopts hydraulic blocking wheel.Hydraulic blocking wheel is by the electric control system controls hydraulic work system, thereby gear wheel is moved up and down within the specific limits, and drives rotary kiln and move up and down, and therefore, the reliability of gear wheel control gear and performance are very important.But all there are some problems in the control gear of existing hydraulic blocking wheel in reliability and aspect of performance: 1. do not have extension wire in the hydraulic system, in case break down, maintenance can only stop production; 2. automatical control system mostly is relay circuit control, and both easy break-down was unfavorable for improving automaticity again; 3. the oil-feed oil return flow control circuit in the hydraulic system can not reach rotary kiln and moves up and down required utmost point jogging speed.
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of reliability height, well behaved rotary kiln gear wheel control gear are provided.
The rotary kiln gear wheel control gear of realization the utility model purpose is made up of hydraulic system and automatical control system, automatical control system comprises the manual operation circuit and the automatically cycling circuit of controlled hydraulic system work, hydraulic system comprises the underground that two nested structures are identical, can work independently separately, and they are standby each other.When gear wheel drives rotary kiln and moves up and down, only need a cover line work, when the underground in the work breaks down, just enable another set of circuit,, unlikelyly influence production so that make rotary kiln continue normal operation.Above-mentioned underground is made of oil pump, pressure-control circuit, commutation loop, bridge-type oil-feed meter out flow control circuit, oil cylinder and fuel tank.The output termination pressure-control circuit and the commutation loop of oil pump, commutation loop connect bridge-type oil-feed meter out flow control circuit, and bridge-type oil-feed meter out flow control circuit connects oil cylinder, and the movement parts of oil cylinder is connected with gear wheel.When gear wheel promotes to move on the rotary kiln, fluid through oil pump, commutation loop, bridge-type entrance throttle governing circuit loop to oil cylinder; When rotary kiln moved down next time, fluid went out from oil cylinder in action of gravity, through bridge-type meter out flow control circuit, commutation loop to fuel tank.Bridge-type oil-feed meter out flow control circuit integrates oil-feed, oil return flow control circuit, a shared series flow control valve.
In order to realize goal of the invention better, also adopted following technical measures:
1, the fluid circulating filtration cooling circuit of having connected between two undergrounds that can work independently separately of cover, this loop is made up of oil purifier, three one-way valves, two valves and cooler.In three one-way valves, have two to install in opposite directions, their entrance point links to each other with two commutation loop of overlapping in the undergrounds respectively, and their outlet end links to each other with the entrance point of oil purifier; The outlet end of the import termination oil purifier of another one-way valve, its outlet termination cooler, cooler outlet termination fuel tank.One termination of two valves is positioned at the outlet end of the one-way valve together of oil purifier and cooler, and the other end connects the pressure-control circuits in the two cover undergrounds respectively.Oil pump in this loop and the extension wire.Commutation loop matches, and in the working line operation, can carry out circulating filtration and cooling to fluid.
2, automatical control system has increased temperature-control circuit, in limited time filtering circuit, failure alarm circuit and programmable controller (PC), and programmable controller (PC) is controlled each circuit working, thereby makes each loop works in the hydraulic system.
3, bridge-type oil-feed meter out flow control circuit is made up of a micrometeor series flow control valve, a smart oil purifier and four one-way valves.The Placement of four one-way valves is a bridge architecture, smart oil purifier and micrometeor series flow control valve are connected on the node place, middle part of the bridge architecture that above-mentioned one-way valve constitutes, form the entrance throttle governing circuit loop with two one-way valves, form the meter out flow control circuit with other two one-way valves.The minimum regime flow of micrometeor series flow control valve is 5 milliliters of per minutes, and rated pressure is 31.5 MPas.
4, the oil pump in the underground is selected high-pressure gear pump for use, and commutation loop is made of the solenoid directional control valve of band mechanical localization mechanism.
The utlity model has following advantage:
1, because hydraulic system comprises that two nested structures are identical, the underground that can work independently separately, when a cover circuit breaks down, another set of circuit can come into operation at once, the circuit that is out of order can keep in repair simultaneously with standby, greatly improved functional reliability, rotary kiln can not stop production because of gear wheel control gear hydraulic system breaks down yet, therefore can avoid the economic loss that stops production and cause, with the YS4/3.5/4/145 cement rotary kiln is example, 700 tons of daily output cement stop production and then lost 240,000 yuan in one day.
2, selecting for use of the structure of underground and hydraulic element helps reducing rate of fault, strengthens reliability.
3, automatical control system has adopted programmable controller (PC), both can improve the reliability of automatical control system, can improve the automaticity of hydraulic system operation again.
4, selected micrometeor series flow control valve can satisfy the rotary kiln requirement of travelling speed extremely slowly in the bridge-type oil-feed meter out flow control circuit, calculates with its minimum regime flow, and the travelling speed of rotary kiln can reach 0.06 millimeter of per minute.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is a kind of hydraulic scheme of rotary kiln gear wheel control gear;
Fig. 2 is another hydraulic scheme of rotary kiln gear wheel control gear, and this hydraulic system is overlapped the fluid circulating filtration cooling circuit of having connected between the underground that can work independently two;
Fig. 3 is a kind of automatical control system flow diagram of rotary kiln gear wheel control gear;
Fig. 4 is a kind of circuit block diagram of rotary kiln gear wheel control gear automatical control system;
Fig. 5 is a kind of circuit theory diagrams of rotary kiln gear wheel control gear automatical control system, and wherein XD is a tutorial light, and RD is a fus, and K is a throw over switch, and XK is a position limit switch, and QA is a button, and LU is an oil purifier jam signal sensor, T
On, T
DownBe the upper limit contact and the lower limit contact of oil liquid temperature control table, P
OnBe the upper limit contact of oil liquid pressure control table, 1DT, 2DT, 3DT, 4DT are the commutation loop electromagnet, and 5DT is the water valve electromagnet, and C is a contactor, and ZJ is an auxiliary reclay;
Fig. 6 is the DC power supply circuit of rotary kiln gear wheel control gear and the electrical schematic diagram of Oil pump electrical machinery operation circuit, and wherein D is an Oil pump electrical machinery, and RT is a thermorelay, and C is a contactor, and HK is a knife-like switch, LH
aBe mutual inductor, A is an ammeter, and V is a voltmeter, and TA is a button, and XD is a tutorial light;
The indicator light circuit figure that Fig. 7 heats, promptly stops for motor operation, fluid, wherein C is a contactor, and ZJ is an auxiliary reclay, and XD is a tutorial light, and RD is a fus, TA is a button.
Embodiment 1:
Rotary kiln gear wheel control gear in the present embodiment is made up of hydraulic system and automatical control system.The structure of hydraulic system as shown in Figure 2, the heater (18) that is provided with in the fluid circulating filtration cooling circuit that comprises the underground that two nested structures are identical, can work independently separately and connect between them, the fuel tank.The underground that can work independently is made of oil pump (3), pressure-control circuit, commutation loop, bridge-type oil-feed meter out flow control circuit, oil cylinder (25) and fuel tank.Oil pump (3) is selected high-pressure gear pump for use; Commutation loop is made of selector valve (7), selects the solenoid directional control valve of band mechanical localization mechanism for use; Bridge-type oil-feed meter out flow control circuit is made up of four one-way valves (6), a smart oil purifier (10) and a micrometeor series flow control valve (8), and the minimum regime flow of micrometeor series flow control valve is 5 milliliters of per minutes, and rated pressure is 31.5 MPas.Fluid circulating filtration cooling circuit is made up of oil purifier (11), cooler (12), one-way valve (9-1,9-2,9-3), valve (2-3,2-4).Each element in the hydraulic system, its rated pressure are 25 MPas or more than 25 MPas.
The structure of automatical control system such as Fig. 3, Fig. 4, shown in Figure 5 are made up of automatically cycling circuit, manual operation circuit, prescribe a time limit filtering circuit, temperature-control circuit, failure alarm circuit and programmable controller (PC).Automatically cycling circuit comprises input circlult and output circuit, input circlult is made of throw over switch 1K, 2K, 3K and button 1QA, 2QA and position limit switch 5XK, 6XK, and output circuit is made of contactor 1C, 2C, electromagnet 1DT, 2DT, 3DT, 4DT and tutorial light 6XD, 7XD, 9～16XD, 21XD, 22XD.Manual operation circuit comprises manually-operable signal input circuit and output circuit, the manually-operable signal input circuit is made of throw over switch 1K, 2K, 3K, button 3～10QA and position limit switch 5XK, 6XK, output circuit is by contactor 1C, 2C, and electromagnet 1DT, 2DT, 3DT, 4DT and tutorial light 6XD, 7XD, 9-16XD, 23XD, 24XD constitute.Temperature-control circuit comprises temperature transducer input circlult and output circuit, and the temperature transducer input circlult is by the upper limit contact T of oil liquid temperature control table
OnWith lower limit contact T
DownConstitute, output circuit is made of water valve electromagnet 5DT, auxiliary reclay 1ZJ and heater.Failure alarm circuit comprises trouble signal input circlult and output circuit, and the trouble signal input circlult is by the upper limit contact P of oil liquid pressure control table
On, oil purifier jam signal sensor LU, position limit switch 3XK, 4XK constitute, output circuit is made of loudspeaker and alarm indicator lamp 4XD, 5XD, 8XD, 17～20XD.Above-mentioned each circuit is controlled by programmable controller (PC).
The structure of DC power supply circuit and motor operation circuit as shown in Figure 6.The indicator light circuit that motor operation, fluid heat and promptly stops as shown in Figure 7.
Under the control of automatical control system, the working principle of hydraulic system is: during I cover line work, ball valve 21-2 closes, 21-1 opens, while depression stroke switch 22-1, start oil pump 3-1,2DT energising dead electricity after 5 seconds, fluid through the right position of one-way valve 6-1, solenoid directional control valve 7-1, one-way valve 6-3, smart oil purifier 10-1, micrometeor series flow control valve 8-1, one-way valve 6-5, ball valve 21-1, ball valve 23-1,23-2 be to the rodless cavity of oil cylinder 25-1,25-2, promote to move the direct oil sump tank of the fluid of rod chamber on the rotary kiln.When move on the rotary kiln depress upper limit position switch 24-2,24-4 after, then oil pump 3-1 quits work, dead electricity again after the 1DT energising, under rotary kiln deadweight effect, the oil of two oil cylinder rodless cavities through the position, a left side of ball valve 23-1,23-2, ball valve 21-1, one-way valve 6-6, smart oil purifier 10-1, micrometeor series flow control valve 8-1, solenoid directional control valve 7-1, stop valve 2-3, cooler 12 be to fuel tank.After rotary kiln moves down and depresses lower position switch 24-1,24-3, repeat said process.Meanwhile, can regularly start or start the oil pump 3-2 of II cover underground by PC by electric contact thermometer (17) control, 4DT energising back time-delay dead electricity, fluid to fuel tank, carries out circulating filtration and cooling through position, one-way valve 6-2, a solenoid directional control valve 7-2 left side, one-way valve 9-2, oil purifier 11, one-way valve 9-3, cooler 12.When the oil temperature is low excessively, can heat temperature adjustment automatically; When superpressure, plugged filter, limit switch fault and other fault appear in hydraulic system, capable of automatic alarm.
Embodiment 2:
Rotary kiln gear wheel control gear in the present embodiment is made up of hydraulic system and automatical control system.The structure of hydraulic system is compared with embodiment 1 as shown in Figure 1, and difference is the fluid circulating filtration cooling circuit of not connecting.Therefore its automatical control system includes only automatically cycling circuit, manual circuit and warning circuit, and foregoing circuit is controlled by programmable controller (PC) equally.The structure of present embodiment underground, the selecting for use of hydraulic element, the concrete structure of each circuit is all with embodiment 1.
Structure of the present utility model is not limited to the foregoing description, and its protection domain is determined by claims.
Claims (5)
1, a kind of rotary kiln gear wheel control gear is made up of hydraulic system and automatical control system, and automatical control system comprises manual operation circuit, the automatically cycling circuit of controlled hydraulic system work, it is characterized in that:
1. hydraulic system comprises the underground that two nested structures are identical, can work independently separately, and they are standby each other,
2. above-mentioned underground is made of oil pump (3), pressure-control circuit, commutation loop, bridge-type oil-feed meter out flow control circuit, oil cylinder (25) and fuel tank, the output termination pressure-control circuit and the commutation loop of oil pump (3), commutation loop connects bridge-type oil-feed meter out flow control circuit, bridge-type oil-feed meter out flow control circuit connects oil cylinder (25), the movement parts of oil cylinder (25) is connected with gear wheel
3. bridge-type oil-feed meter out flow control circuit integrates oil-feed, oil return loop, a shared series flow control valve.
2, rotary kiln gear wheel control gear according to claim 1, it is characterized in that two overlap the fluid circulating filtration cooling circuit of having connected between the underground that can work independently separately, this loop is by oil purifier (11), one-way valve (9-1,9-2,9-3), valve (2-3,2-4) and cooler (12) form, one-way valve (9-1,9-2) install in opposite directions, their entrance point links to each other with two commutation loop of overlapping in the undergrounds respectively, their outlet end links to each other with the entrance point of oil purifier (11), the outlet end of the import termination oil purifier (11) of one-way valve (9-3), it exports termination cooler (12), cooler outlet termination fuel tank, valve (2-3, the outlet end of a termination one-way valve (9-3) 2-4), the other end connect the pressure-control circuit in the two cover undergrounds respectively.
3, rotary kiln gear wheel control gear according to claim 2, it is characterized in that automatical control system has increased temperature-control circuit, in limited time filtering circuit, failure alarm circuit and programmable controller (PC), programmable controller (PC) is controlled each circuit working, thereby make each loop works in the hydraulic system
4, according to claim 1 or 2 or 3 described rotary kiln gear wheel control gear, it is characterized in that bridge-type oil-feed meter out flow control circuit is by a micrometeor series flow control valve (8), a smart oil purifier (10) and four one-way valves (6) are formed, the Placement of four one-way valves is a bridge architecture, smart oil purifier (10) and micrometeor series flow control valve (8) are connected on the node place, middle part of the bridge architecture that above-mentioned one-way valve constitutes, form the oil-feed loop with two one-way valves, form the oil return loop with other two one-way valves, the minimum regime flow of micrometeor series flow control valve (8) is 5 milliliters of per minutes, and rated pressure is 31.5 MPas.
5, according to claim 1 or 2 or 3 described rotary kiln gear wheel control gear, it is characterized in that oil pump (3) is a high-pressure gear pump, commutation loop is made of the solenoid directional control valve of band mechanical localization mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236574 CN2223790Y (en) | 1994-05-30 | 1994-05-30 | Device for controlling bumping wheel of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94236574 CN2223790Y (en) | 1994-05-30 | 1994-05-30 | Device for controlling bumping wheel of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2223790Y true CN2223790Y (en) | 1996-04-03 |
Family
ID=33844500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94236574 Expired - Fee Related CN2223790Y (en) | 1994-05-30 | 1994-05-30 | Device for controlling bumping wheel of rotary kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2223790Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445071A (en) * | 2011-09-19 | 2012-05-09 | 大连维乐液压制造有限公司 | Wheel blocking hydraulic station of rotary kiln |
| CN103711751A (en) * | 2014-01-16 | 2014-04-09 | 合肥正威液压科技有限公司 | Novel electric control device for integrated electro-hydraulic proportional control system |
| CN104481946A (en) * | 2014-12-08 | 2015-04-01 | 深圳市中科利亨车库设备有限公司 | Hydraulic system for stereoscopic garage |
| CN116412182A (en) * | 2023-04-06 | 2023-07-11 | 杭州国电机械设计研究院有限公司 | Ship lift and ship receiving compartment hydraulic balance leveling system and method thereof |
-
1994
- 1994-05-30 CN CN 94236574 patent/CN2223790Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445071A (en) * | 2011-09-19 | 2012-05-09 | 大连维乐液压制造有限公司 | Wheel blocking hydraulic station of rotary kiln |
| CN102445071B (en) * | 2011-09-19 | 2014-02-12 | 大连维乐液压制造有限公司 | Wheel blocking hydraulic station of rotary kiln |
| CN103711751A (en) * | 2014-01-16 | 2014-04-09 | 合肥正威液压科技有限公司 | Novel electric control device for integrated electro-hydraulic proportional control system |
| CN103711751B (en) * | 2014-01-16 | 2015-12-02 | 安徽纳威光机电科技发展有限公司 | The electric controller of integrated electric electro-hydraulic proportional control system |
| CN104481946A (en) * | 2014-12-08 | 2015-04-01 | 深圳市中科利亨车库设备有限公司 | Hydraulic system for stereoscopic garage |
| CN116412182A (en) * | 2023-04-06 | 2023-07-11 | 杭州国电机械设计研究院有限公司 | Ship lift and ship receiving compartment hydraulic balance leveling system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |