CN102233288A - Hydraulic system for rolling machine (high-pressure roller mill) - Google Patents
Hydraulic system for rolling machine (high-pressure roller mill) Download PDFInfo
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- CN102233288A CN102233288A CN 201110200433 CN201110200433A CN102233288A CN 102233288 A CN102233288 A CN 102233288A CN 201110200433 CN201110200433 CN 201110200433 CN 201110200433 A CN201110200433 A CN 201110200433A CN 102233288 A CN102233288 A CN 102233288A
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Abstract
The invention discloses a hydraulic system for a rolling machine (high-pressure roller mill), and belongs to the field of rolling machines and high-pressure roller mills in building material and mine industries. The hydraulic system of the rolling machine (high-pressure roller mill) comprises an energy accumulator, a main hydraulic cylinder and a pressure sensor, wherein the energy accumulator is communicated with a hydraulic station oil supply pipeline through a third electromagnetic exchange valve and is communicated with a hydraulic station oil tank through a second electromagnetic exchange valve; and the main hydraulic cylinder and the pressure sensor are connected between a check valve and the second electromagnetic exchange valve as well as between the energy accumulator and the third electromagnetic exchange valve simultaneously. By the hydraulic system for the rolling machine (high-pressure roller mill), the roller gap between a fixed roller and a movable roller can be relatively stabilized, so that the rolling machine is operated stably, safely and reliably; therefore, the service life of the rolling machine (high-pressure roller mill) is prolonged, and the hydraulic system is extremely easy and convenient to operate.
Description
Technical field
The present invention relates to a kind of hydraulic system that is applicable to building materials and mine industry with roll squeezer, high-pressure roller mill.
Background technology
The roll squeezer that uses in building materials and the mine industry, high-pressure roller mill, when material by roll squeezer (high roller mill) stationary roll and movable roll between the time, rely on the pressure between two rollers to squeeze material broken.Be extruded in the process at material, material can produce reaction force to pressure roller, make movable roller produce the rollback phenomenon, thereby make roll gap become big, driving side and non-drive side can produce the roll gap deviation when material was gone into pressure roller simultaneously, and these two kinds of phenomenons can influence stable operation, the reduction production efficiency of roll squeezer (high-pressure roller mill), make the life-span of roll squeezer shorten, be unfavorable for the production utilization of building materials and mine industry, so the problems referred to above strategic point is to be solved.
Summary of the invention
Goal of the invention of the present invention is: at the problem of above-mentioned existence, the hydraulic system of a kind of roll squeezer (high-pressure roller mill) is provided, adopt this hydraulic system, can constant stationary roll and movable roll between roll gap, make the stable of roll squeezer, safe and reliable, thus the service life of increase roll squeezer, and operation is very easy.
The technical solution used in the present invention is as follows:
The hydraulic system of roll squeezer of the present invention (high-pressure roller mill) comprises accumulator, main hydraulic cylinder and pressure sensor, described accumulator is communicated with the Hydraulic Station oil feed line by the 3rd solenoid directional control valve, described accumulator is communicated with the Hydraulic Station fuel tank by second solenoid directional control valve, and described main hydraulic cylinder and pressure sensor are connected between the check valve and second solenoid directional control valve simultaneously, between accumulator and the 3rd solenoid directional control valve.
Owing to adopted said structure, Hydraulic Station starts earlier, and the 3rd solenoid directional control valve energising commutation is pressurizeed to main hydraulic cylinder then; When reaching scheduled pressure value, pressure sensor sends signal, by programme-control, the outage of the 3rd solenoid directional control valve, stop pressurization and enter the pressurize running status, in roll squeezer (high-pressure roller mill) running, the roll gap of movable roll two ends and stationary roll (displacement transducer detection) changes, when needing to regulate, control program sends signal, second solenoid directional control valve and the 3rd solenoid directional control valve energising commutation is reduced pressure or is pressurizeed the pressure of main hydraulic cylinder, and the roll gap deviation at movable roll two ends is adjusted, after adjustment is finished, recover the pressurize operating condition.Adopt this hydraulic system, can constant stationary roll and movable roll between roll gap, thereby increase service life of roll squeezer.
The hydraulic system of roll squeezer of the present invention (high-pressure roller mill), an end of described first overflow valve and second overflow valve is parallel between check valve, the main hydraulic cylinder, and the other end is communicated with the Hydraulic Station fuel tank.
Owing to adopted said structure, when roll squeezer (high-pressure roller mill) operation exception, cause the main hydraulic cylinder pressure anomaly to rise, surpass when setting value, first overflow valve and second overflow valve will be opened successively, reduce the pressure of main hydraulic cylinder; The hydraulic system of roll squeezer of the present invention (high-pressure roller mill), and operation is very easy, makes the stable of roll squeezer, and safe and reliable.
The hydraulic system of roll squeezer of the present invention (high-pressure roller mill), one end of described hydraulic control one-way valve is connected between check valve and the main hydraulic cylinder, the other end then is communicated with the Hydraulic Station fuel tank, the control oil circuit of hydraulic control one-way valve is connected with an end of first solenoid directional control valve, and the other end of first solenoid directional control valve is connected between check valve, second solenoid directional control valve.
Owing to adopted said structure, the unusual or fault of roll squeezer (high-pressure roller mill) emerged in operation, cause main hydraulic cylinder pressure rise rapidly, when surpassing setting value, the fluid-control one-way opening of valves releases the pressure of main hydraulic cylinder, guarantees the safety of using.
The hydraulic system of roll squeezer of the present invention (high-pressure roller mill), on the branch road between described the 3rd solenoid directional control valve and the Hydraulic Station oil feed line, be connected with the 4th solenoid directional control valve, choke valve and the auxiliary cylinder of series connection successively, described the 4th solenoid directional control valve also is connected on the Hydraulic Station fuel tank.
Owing to adopted said structure; when roll squeezer (high-pressure roller mill) cancel closedown, in the time of need drawing back roll gap; the energising of second solenoid directional control valve; the outage of the 3rd solenoid directional control valve, the energising of the 4th solenoid directional control valve is pressurizeed to auxiliary cylinder; movable roll is pushed open; increase roll gap, be convenient to material residual between treatment tube, easy and simple to handle.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1. the hydraulic system of roll squeezer of the present invention (high-pressure roller mill), can constant stationary roll and movable roll between roll gap, thereby increase service life of roll squeezer;
2. the hydraulic system of roll squeezer of the present invention (high-pressure roller mill) is operated very easyly, makes the stable of roll squeezer, and is safe and reliable.
3. the hydraulic system of roll squeezer of the present invention (high-pressure roller mill) is convenient to material residual between treatment tube, and is easy and simple to handle, is beneficial to popularization.
Description of drawings
The present invention will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the annexation figure of the hydraulic system of roll squeezer of the present invention (high-pressure roller mill).
Mark among the figure: 1-accumulator, 2-check valve, 3-first solenoid directional control valve, 4-hydraulic control one-way valve, 5-first overflow valve, 6-second overflow valve, 7-second solenoid directional control valve, 8-the 3rd solenoid directional control valve, 9-the 4th solenoid directional control valve, 10-choke valve, 11-auxiliary cylinder, 12-main hydraulic cylinder, 13-pressure sensor, P-Hydraulic Station fuel feeding, the oil return of T-Hydraulic Station, D1-first integrated package, D2-second integrated package.
The specific embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
The hydraulic system of roll squeezer of the present invention (high-pressure roller mill), comprise accumulator 1, main hydraulic cylinder 12 and pressure sensor 13, described accumulator 1 is communicated with the 3rd solenoid directional control valve 8 on hydraulic pressure oil pump station P, described accumulator 1 is communicated with check valve 2, second solenoid directional control valve 7 successively on the T of hydraulic oil-returning station, and described main hydraulic cylinder 12 and pressure sensor 13 are connected between the check valve 2 and second solenoid directional control valve 7 simultaneously, between accumulator 1 and the 3rd solenoid directional control valve 8.Be connected on the T of hydraulic oil-returning station by first solenoid directional control valve 3, first overflow valve 5 and second overflow valve 6 in parallel between described check valve 2 and second solenoid directional control valve 7.One end of described first solenoid directional control valve 3 is connected between the check valve 2 and second solenoid directional control valve 7, and the other end connects an end of first overflow valve 5, second overflow valve 6 successively on the T of hydraulic oil-returning station.On the branch road of Hydraulic Station oil feed line P, be connected with the 4th solenoid directional control valve 9, choke valve 10 and the auxiliary cylinder 11 of series connection successively, and finally be connected to Hydraulic Station oil feed line P between described the 3rd solenoid directional control valve 8.Described element is except that main hydraulic cylinder 12, choke valve 10 and auxiliary cylinder 11, all the other elements are all installed concentratedly on integrated package, said elements all is arranged on the first integrated package D1 and the second integrated package D2, and it is parallel with one another between the first integrated package D1 and the second integrated package D2, and two integrated package co-operate realize the control to roll squeezer (high-pressure roller mill) roll gap.
The hydraulic system of roll squeezer high-pressure roller mill of the present invention, its operation principle is: when 1) this hydraulic system was moved, Hydraulic Station started earlier, and the 3rd solenoid directional control valve 8 energising commutations are then pressurizeed to main hydraulic cylinder 12; When reaching scheduled pressure value, pressure sensor 13 sends signal, and by programme-control, 8 outages of the 3rd solenoid directional control valve stop pressurization and enter the pressurize running status.In roll squeezer (high-pressure roller mill) running, the roll gap of movable roll two ends and stationary roll (displacement transducer detection) changes, when needing to regulate, control program sends signal, second solenoid directional control valve 7 or the 8 energising commutations of the 3rd solenoid directional control valve, pressure to main hydraulic cylinder 12 reduces pressure or pressurizes, roll gap deviation to the movable roll two ends is adjusted, and after adjustment is finished, recovers the pressurize operating condition.
2) when roll squeezer (high-pressure roller mill) operation exception, cause main hydraulic cylinder 12 pressure anomalies to rise, surpass when setting value, first overflow valve 5, second overflow valve 6 will be opened successively, reduce the pressure of main hydraulic cylinder 12; Unusual or the fault of roll squeezer (high-pressure roller mill) emerged in operation causes main hydraulic cylinder 12 pressure to rise rapidly, surpass when setting value, and hydraulic control one-way valve 4 is opened, and releases the pressure of main hydraulic cylinder 12.
3) when roll squeezer (high-pressure roller mill) cancel closedown, in the time of need drawing back roll gap, the energising of second solenoid directional control valve 7,8 outages of the 3rd solenoid directional control valve, solenoid directional control valve 11 energisings to auxiliary cylinder 11 pressurizations, are pushed movable roll open.
As shown in Figure 1, be the hydraulic system of a bench roller press (high-pressure roller mill) can constant stationary roll and movable roll between roll gap, make the stable of roll squeezer, safe and reliable, thereby increase service life of roll squeezer, and operation is very easy.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (4)
1., the hydraulic system of a kind of roll squeezer (high-pressure roller mill), it is characterized in that: it comprises accumulator (1), main hydraulic cylinder (12) and pressure sensor (13), described accumulator (1) is communicated with Hydraulic Station oil feed line (P) by the 3rd solenoid directional control valve (8), described accumulator (1) is communicated with Hydraulic Station fuel tank (T) by second solenoid directional control valve (7), and described main hydraulic cylinder (12) and pressure sensor (13) are connected between check valve (2) and second solenoid directional control valve (7) simultaneously, between accumulator (1) and the 3rd solenoid directional control valve (8).
2. the hydraulic system of roll squeezer as claimed in claim 1 (high-pressure roller mill), it is characterized in that: an end of described first overflow valve (5) and second overflow valve (6) is parallel between check valve (2), the main hydraulic cylinder (12), and the other end is communicated with Hydraulic Station fuel tank (T).
3. the hydraulic system of roll squeezer as claimed in claim 2 (high-pressure roller mill), it is characterized in that: an end of described hydraulic control one-way valve (4) is connected between check valve (2) and the main hydraulic cylinder (12), the other end then is communicated with Hydraulic Station fuel tank (T), the control oil circuit of hydraulic control one-way valve (4) is connected with an end of first solenoid directional control valve (3), and the other end of first solenoid directional control valve (3) is connected between check valve (2), second solenoid directional control valve (7).
4. as the hydraulic system of claim 1 or 2 or 3 described roll squeezers (high-pressure roller mill), it is characterized in that: on the branch road between described the 3rd solenoid directional control valve (8) and the Hydraulic Station oil feed line (P), be connected with the 4th solenoid directional control valve (9), choke valve (10) and the auxiliary cylinder (11) of series connection successively, described the 4th solenoid directional control valve (9) also is connected on the Hydraulic Station fuel tank (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110200433.8A CN102233288B (en) | 2011-07-18 | 2011-07-18 | Hydraulic system for rolling machine (high-pressure roller mill) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110200433.8A CN102233288B (en) | 2011-07-18 | 2011-07-18 | Hydraulic system for rolling machine (high-pressure roller mill) |
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| CN102233288A true CN102233288A (en) | 2011-11-09 |
| CN102233288B CN102233288B (en) | 2014-05-14 |
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| CN201110200433.8A Active CN102233288B (en) | 2011-07-18 | 2011-07-18 | Hydraulic system for rolling machine (high-pressure roller mill) |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671735A (en) * | 2012-05-08 | 2012-09-19 | 成都光华科技发展有限公司 | Roller press hydraulic system and automatic pressure stabilizing device thereof |
| CN104772186A (en) * | 2015-03-30 | 2015-07-15 | 南京梅山冶金发展有限公司 | Control method for roller-gap maintaining and resistance-free starting before starting-up of four-roller crusher |
| CN111173791A (en) * | 2020-02-17 | 2020-05-19 | 四川川润智能流体技术有限公司 | Roller press hydraulic system with independent roller withdrawing function and operation method thereof |
| CN111215233A (en) * | 2019-11-19 | 2020-06-02 | 成都九泰科技有限公司 | Deviation correction and pressure control method for roll squeezer system |
| CN113083440A (en) * | 2021-03-10 | 2021-07-09 | 栾川县金鼎矿业有限公司 | Dynamic control and deviation-correcting hydraulic system for roller gap of high-pressure roller mill and control method |
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| DE4226158C2 (en) * | 1992-08-07 | 2003-04-10 | Kloeckner Humboldt Wedag | Process and plant for pressure treatment of granular goods |
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| CN201645884U (en) * | 2010-05-12 | 2010-11-24 | 重庆京庆重型机械有限公司 | Hydraulic system of roll squeezer |
| CN202212220U (en) * | 2011-07-18 | 2012-05-09 | 成都利君实业股份有限公司 | Hydraulic system for roller press |
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| DE4226158C2 (en) * | 1992-08-07 | 2003-04-10 | Kloeckner Humboldt Wedag | Process and plant for pressure treatment of granular goods |
| CN2161762Y (en) * | 1993-03-06 | 1994-04-13 | 洛阳矿山机械工程设计研究院 | Hydraulic controller for roller press |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102671735A (en) * | 2012-05-08 | 2012-09-19 | 成都光华科技发展有限公司 | Roller press hydraulic system and automatic pressure stabilizing device thereof |
| CN104772186A (en) * | 2015-03-30 | 2015-07-15 | 南京梅山冶金发展有限公司 | Control method for roller-gap maintaining and resistance-free starting before starting-up of four-roller crusher |
| CN111215233A (en) * | 2019-11-19 | 2020-06-02 | 成都九泰科技有限公司 | Deviation correction and pressure control method for roll squeezer system |
| CN111215233B (en) * | 2019-11-19 | 2022-03-18 | 成都九泰科技有限公司 | Deviation correction and pressure control method for roll squeezer system |
| CN111173791A (en) * | 2020-02-17 | 2020-05-19 | 四川川润智能流体技术有限公司 | Roller press hydraulic system with independent roller withdrawing function and operation method thereof |
| CN113083440A (en) * | 2021-03-10 | 2021-07-09 | 栾川县金鼎矿业有限公司 | Dynamic control and deviation-correcting hydraulic system for roller gap of high-pressure roller mill and control method |
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|---|---|
| CN102233288B (en) | 2014-05-14 |
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