CN105041363B - A kind of pure water medium fully-mechanized mining working support system - Google Patents
A kind of pure water medium fully-mechanized mining working support system Download PDFInfo
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Abstract
A kind of pure water medium fully-mechanized mining working support system disclosed by the invention, by ultrapure water preparation device, high-pressure hydraulic pump, hydraulic valve and pipeline, filtration system, hydraulic support and Intelligent central monitoring device composition, the dynamic medium of coal mining unit replaces emulsion using pure water, realize the target of working face no pollution, and the oil cylinder and valve group and pipe fitting of column are configured with coating for protection against corrosion, the oil cylinder of column and jack displacement aqueous medium system with pressure, aqueous medium can flow anti-corrosion, micro-nano coating is covered on column and jack to realize the corrosion protection of Hydraulic Elements, prefilming agent is added in column and jack inner surface, it realizes and pre- film anti-corrosion is carried out to static column and jack inner surface.
Description
Technical field
This application involves a kind of hydraulic prop systems, in particular to a kind of pure water medium fully-mechanized mining working supporting system
System.
Background technology
In the past, at home and abroad in coal production, wooden prop, timber cap or metal friction pillar articulated roof beam are substantially used
Carry out supporting roof.Since Britain in 1954 develops hydraulic support for the first time, cave in event since hydraulic support can reduce mine
Generation, greatly improve the safety of coal mine operation, hydraulic support starts to be widely used in coal mine work area, while with
It machinery and replaces artificial iterative method, hydraulic support is also one of most important equipment in comprehensive mechanized coal mining method.
At present the whole nation coal mine share more than 8000 a mines, a working face more than nearly 20,000, annual output be 3,500,000,000 tons of coals, mine at
Set equipment and spare parts consumption year amount of purchase nearly hundred billion, from the point of view of whole world level, fully-mechanized mining equipment is emulsification using dynamic medium
The mixture of liquid, emulsion forms for 95%-98% neutral water+3%-5% oil emulsions, and the ratio of oil emulsion is a fluctuation,
It since comprehensive mechanical coal mining equips no complete set of equipments, is substantially from each producer and is purchased, do not form unification
Standardization causes the ratio of oil emulsion between each equipment to be difficult to reach consistent, so as to cause the waste of oil emulsion, reduces simultaneously
Mechanical equipment working efficiency.
Because equipment is irregular, cause concentration of emulsion used control bad, there are one 3%-5% to fluctuate for oil emulsion, state
120,000 tons of oil emulsions of interior annual consumption form ten thousand tons of year 300-400, have almost had existing about 40,000,000 tons of breasts within passing 10 years
Change liquid and be all emitted into underground coal mine, causes very serious, permanent, large area water pollution or even part mine
Water head site has all been seriously damaged, and is related to national 16 provinces, especially Shanxi, Shaanxi, the Inner Mongol, Henan, Shandong, Anhui
With the big province of producing coals such as Xinjiang, pollution loss is inestimable, becomes world's coal mine problem.
Simultaneously because emulsion precision and dustiness mismanagement cause a large amount of holder oil cylinders and valve corrosion serious, year scraps gold
Volume about 5,000,000,000.System corrosion main forms are caused by emulsion quality problems：Hole (point) is lost, cavitation erosion, erosion corrosion,
Bacterial corrosion, galvanic corrosion, intercrystalline corrosion, stress-corrosion cracking.In addition fully mechanized mining equipment slaps together that (more families match by more families are discrete
Set), matching is poor, and quality is irregular, and the degree of automation is low, leads to Frequent Troubles, and labor intensity is big, and operating personnel are excessive,
Safety is poor.
In the prior art since level of integrated system is not high and oil emulsion use, cause production efficiency of equipment low, and
And it seriously polluted water body.
Invention content
The application's is designed to provide a kind of pure water medium fully-mechanized mining working support system, realizes the supporting of high-efficiency environment friendly
System.
Support system belongs to the important component of combine coal mining unit, pure water base environment-friendly intelligent combine coal mining unit G-
CCMU realizes Highgrade integration and the systematization of coal excavation apparatus, to improve the matching of production efficiency and unit, simultaneously
Intelligent combine coal mining unit G-CCMU uses pure water dynamic medium, realizes the intelligent environment protection of coal excavation apparatus.
Specifically, complete set of equipments pure water base environment-friendly intelligent combine coal mining unit G-CCMU, including：Coal mining system, transporting coal
System, support system, power supply system, pure water dynamical system, central monitoring system.
Coal mining system refers mainly to refer to that coal seam acquires relevant system, main work on working face in Mine Production
Sequence has coal cutting and coalings, and the mode of coal cutting has one-way coal cutting and two-ways coal cutting：One-way coal cutting, coalcutter uplink coal cutting, downlink
Float coal is cleared up, one is pushed away and cuts deep, be suitable for coal seam thickness slightly larger than diameter of cylinder and the tough and tensile condition of coal quality；Two-ways coal cutting has
Two ways, one is a round-trip knives, and when coal seam is thicker, coalcutter uplink pastes top plate cutting, and patch floor cutting is simultaneously when downlink
Float coal is cleared up, this when, round-trip two strokes all cuttings of coalcutter were mined, but working face only promotes one to cut deeply；It is another
It is round-trip two knife, coal seam thickness is close to diameter of cylinder, and top plate is not glued in coal seam, you can realizes bidirectional cutting, row round-trip in this way
It is deep that journey respectively promotes coal wall one to cut.The coalcutter of the application can be equipped with corresponding there are many mining way according to the needs of working face
Coal cutting mode coalcutter.
Transporting coal system, the coal cinder that mainly cutting coal machine is extracted and then is collected into are carried out the coal cinder transportation system of mine,
Its chief component is transporter, and transporter includes transmission device, scraper chain, chute, protective device, chain tightener, passage
Device.
Support system, support system primarily serve the effect of working face support, can effectively prevent heavy roof fall, supporting system
What system included mainly is hydraulic support, and hydraulic support is using highly pressurised liquid as power, by several Hydraulic Elements (oil cylinder and valve member)
The coal working face equipment of a kind of support and controlroof that are composed by certain connection type with some hardwares, liquid
Pressure holder be for effectively reliably supporting and controlling face roof, while can also move forward and propulsioning face conveyer,
It is matched with cutting coal machine, conveyer, hydraulic support is high with structural strength, supporting performance is good, advancing velocity is fast, safe and reliable
The advantages that, coal working face can be made to reach high yield, high effect and high exploitation rate, reduced labor intensity, cost and driving are reduced
Rate realizes safety in production.
Hydraulic support is can to realize a liter frame, drop frame, pushing and sliding, shifting by highly pressurised liquid, column and corresponding power jack
Four elemental motions of frame：Rise frame and operation valve be placed in " rising frame " position, by pumping plant through pressure hose conveying Lai highly pressurised liquid lead to
It crosses hydraulic control one-way valve and enters column cavity of resorption；The liquid of upright post upper cavity flow to liquid back pipe by manipulating valve, and then column is protruding
Holder rises；Pushing and sliding will manipulate valve and be placed in " pushing and sliding " position, highly pressurised liquid is through manipulating valve in the state that holder is in support
Into the left chamber of advancing jack；Its right chamber liquid flow to liquid back pipe through manipulating valve.At this point, advancing jack piston rod stretches out,
Push working face conveyor to coal wall.Pushing distance is generally one section of coalcutter deeply；Drop frame will manipulate valve and get to " drop frame "
Position, highly pressurised liquid flows into the epicoele of column through manipulating valve, and opens simultaneously hydraulic control one-way valve；The liquid of column cavity of resorption is through hydraulic control
Check valve flow to liquid back pipe after manipulating valve, and then column bounces back, and support height reduces；Frame is moved, in holder unloading (drop frame) or portion
After dividing unloading, valve will be manipulated and get to " moving frame " position, highly pressurised liquid enters advancing jack right chamber；Jack left chamber low pressure liquid
Liquid back pipe road is flowed back to, jack cylinder body drives holder to move to right at this time.The distance of its general movement is equal at a distance from pushing and sliding.
Power supply system, power supply system refer mainly to the system for providing electric power for coal mining unit, include the electricity provided from ground
The generating equipment of power and emergency, to realize to the continual supply of electric power of coal mining unit.
Pure water dynamical system refers to providing required pure water for coal mining unit, and special pure water dynamical system includes super
Pure water making machine, to obtain can also carrying out deionization for obtained pure water as the pure water that dynamic medium uses.
Central monitoring system carries out Centralized Monitoring to coal mining unit, realizes the system integration and the intelligence of unit.Fully mechanized mining
Central monitoring system is using crossheading monitoring center as core, by communication network by coalcutter, support electrohydraulic control system, scrapper conveyor
The subsystems such as control system, pumping station controlling system, video monitoring system, voice locking system organically combine, and coordinate each
Data among systems transmit, and realize the long-range prison to fully-mechanized mining working equipment in crossheading monitoring center or ground maneuvers command centre
The real-time display of control and various data, and the linkage of three machines is realized according to coal winning technology, realize that working face lacks peopleization, equipment and people
The functions such as body safeguard protection, fault diagnosis and sound-light alarm.
Crossheading monitoring center：It realizes to working face and crossheading equipment real-time state monitoring, fault pre-alarming and positioning；To scraper plate
The centralized control of the equipment such as machine, elevating conveyor, crusher, protection.
Electrohydraulic control system：It realizes hand behaviour adjacent-support control, working face remote control, separately combines crossheading monitoring center and coal mining
Machine realizes remote visible control, automatically with machine shifting frame, auto spraying.Coalcutter real time data passes by way of wirelessly or non-wirelessly
It is handed to holder electric-control system and is finally uploaded to crossheading monitoring center.
Coalcutter：It is operated with machine by remote field, has high-precision spatial position detection, memory cut function.Simultaneously
Have intelligent protection and fault diagnosis functions.
Video system：Mounted on holder, crossheading video monitoring system can collecting work face panoramic operation real-time video, and
Upload crossheading and ground monitoring center.
Transporter：Scrapper conveyor on-Line Monitor Device can monitor scrapper conveyor, elevating conveyor, crusher speed reducer oil temperature oil level,
The key parameters such as cooling water pressure, flow, motor axle temperature.
Liquid-supplying system：Internal control is established one's own system, while realizing centralized control with crossheading monitoring center again.Emulsify pump frequency conversion
The advanced functions such as control, emulsion on-line monitoring are automatically controlled with automatic mixing, water process, time liquid filtration pressure difference is monitored online are protected
The high reliability of holder is demonstrate,proved.
Voice locking system：Through working face and crossheading, voice communication and emergency device latchup are realized.Electric leakage is broken
The defencive functions such as phase, short circuit, overload are directly realized by by switching.
Crossheading monitoring center provides network interface and related software interface is realized and integrated with Mine Management System.
Fully mechanized mining central monitoring system feature has：
Highly integrated and modularization
Control system is manufactured by 31 independent researches completely, is realized each subsystem Seamless integration-, is ensured to the full extent
Being effectively matched between control system each subsystem.
It is high safety, highly reliable
Electrohydraulic control system is using the configuration mode (every 3 holders install 1 bracket controller) of 1 control 3, bracket controller
Volume is 259mm × 87mm × 109mm, and industry is minimum；After coordinating holder straighforward operation, bracket controller that can be mounted on front column
Side effectively prevent blowing out the impact caused by bracket controller far from coal wall.
System critical piece IP68 degree of protection, configures German imported with original packaging electro hydraulic valve, and remote control operation holder ensures
Holder operating personnel's safety；Working face any position multiple spot gas, wind speed, Humidity Detection are can also be achieved in addition to carrying out holder control
And it is interlocked with power-equipment.Personnel's detection is interlocked with automatic function failure below holder.Top beam level of incline monitoring function prevents
Coalcutter cutting top beam.
Efficiently, energy saving
Holder moves frame with machine automatically, auto spraying improves coal mining efficiency, and emulsion liquid-feed frequency control is substantially energy saving.
It easily uses, easy care
Centralized control system uses full Chinese Man-machine Interface, and monitoring and fault self-diagnosis, quick fault point simultaneously carry out in real time
The analysis of causes, easy to use, maintenance.
Data transfer wireless mode between coalcutter and holder
Data transfer uses wireless mode between coalcutter and holder, is not necessarily to infrared sensor, while coal mechanomotive force cable
No longer need Shielded Twisted Pair.
Scrapper conveyor is monitored on-line
Have scrapper conveyor on-line measuring device, detection speed reducer oil temperature oil level, cooling water pressure, flow, motor axle temperature, work
Make electric current, voltage, insulation etc..
The plane video that works is uploaded with data
Every 3 holders are installed one infrared intrinsic safety video camera, full face video monitoring, while three machine data and are regarded in real time
Frequency synchronized upload ground monitoring center is realized and mine integration of information system.
Crossheading monitoring center, crossheading monitoring center are the control axis of entire working face, by two high-performance explosion-proof industry controls
Machine, four 22 inch liquid crystal display screens, the operation console composition with graphical simulation interface.It is counted in real time by acquiring each subsystem
According to progress logical operation sends out control instruction and data, each equipment is made to reach best match working condition in real time.Crossheading monitors
Data exchange maincenter of the center as underground and ground control centre, the function having include：
Function for monitoring
Each crucial ginseng of working surface coal mining machine, hydraulic support, scrapper conveyor, elevating conveyor, crusher, liquid-supplying system, power supply system
Number monitoring in real time, is shown with figure, animation, word and video mode and is stored.
Stent system can show all bracket upright post pressure, pass trip, set cap level inclination, latch buttons
State, each controller communications status, the failure of electromagnetic valve driver, solenoid valve control cable fault locating and displaying, can be to electro-hydraulic
Control system parameter is configured, stores.
Coalcutter system, coal seat in the plane sets, hauling speed, traffic direction, rocking arm height, cutting power, pressure fuel pump, fuselage
Inclination angle, communication and malfunction, each parameter setting values etc..
Scraper system, speed reducer oil temperature oil level, cooling water pressure, flow, motor axle temperature, three-phase current, voltage etc..
Liquid-supplying system, source water ion content, conductivity, into return hydraulic pressure difference, concentration of emulsion used, pumping plant outlet pressure, emulsification
Liquid concentration-temperature etc..
Video system shows working face real-time video using 1,4,9 pictures.Coalcutter video display terminal shows that coal machine is complete
Scape video.
Communication, protection and fault diagnosis, each communication line on off operating mode instruction of whole system, latch buttons state and finger
Show, fault location and analysis etc..
Control function
Single machine：
A. by working face video system, holder, coalcutter are operated by operation console remote visualization.
B. scrapper conveyor, elevating conveyor, crusher startup, stop operation, can choose whether as needed with transportation system its
Its equipment carries out mutual lock control.
C. one key of liquid-supplying system starts, stops operation automatically, to the start-up and shut-down control of single machine.
D. emulsion pump, atomizing pump centralized control.
Linkage：
A. each equipment sequence automatic start-stop, the interlocking of three machine equipment operating statuses, it is ensured that safety.
B. bracket control system obtains coalcutter encoder positioning signal by CAN bus, according to coalcutter running position
And direction, it is realized according to the program of setting and moves frame, auto spraying with machine automatically.
Data processing, service centre
Data are uploaded in crossheading monitoring center sub-system and summarize display, and select data transfer to each as needed
Subsystem.The reserved data-interface with ground maneuvers command centre is provided ground monitoring system software, is realized using C/S model
Monitoring of the ground monitoring control centre to entire working face.
Support electrohydraulic control system, ZDYZ electrohydraulic control systems install a controller, two lockings using three holders
The configuration mode of button.The control function of bracket controller is not limited by hardware configuration mode, the manual operation ranging from left side
Three framves, three frame of the right, operating in groups ranging from ten frame of the left side, ten frame of the right.
Every 3 holders include a holder control unit, and each holder control unit includes bracket controller 1, locking
2, button, electromagnetic valve driver 3, displacement sensor 3, pressure sensor 6 (double column pressure detectings), inclination angle sensing
(the every 6 frame installation of the electrical equipments such as device 3,1 set of video monitoring system and cable connector that above equipment links together
1 receiver of remote-control sytem).Each component detail parameters are shown in annex.
Electrohydraulic control system major function
The major function of electrohydraulic control system is to control the everything of holder.Control is enterprising in base of applications
Row.The order of control is that operator is sent out (or being sent out automatically by system according to coal winning machine position) by button operation, is passed
The instantaneous value of sensor detection and the various parameters of user setting are also the essential condition of control process.
(1) the non-automatic control that single holder (adjacent frame) is acted with button
In holder where any one bracket controller, any holder first selected in a left side three to right three ranges is operator
After controlled holder, controlled holder is set to carry out a certain action or certain teamworks, just by corresponding operation key on panel.This is
The primary function that system provides.
(2) automatic sequence linkage is implemented to drop column-shifting frame of single holder (adjacent frame)-setting prop action
Some related coherent coordinations are continuously got up to synthesize a composite move by the program of controller, are pressed automatically
Program executes.Each the linking between one action process and one action is examined with the parameter of setting or sensor in real time with coordination
The data of survey are foundation.It drops column, move three frame, setting prop one actions implementation automatic sequence linkages, one is synthesized centered on moving frame
Composite move.Other than these three are actively made, other actions being associated, such as balance jack, lift bottom, side guard plate are dynamic
Make also can with actively make cooperation, participate in program.
Operating method：Holder is first selected, starting (beginning) key is then pressed, holder is chosen and starts automatic sequence action.No
It must continue according to key, action can go on, end automatically automatically.
(3) it automatically controls in groups
" in groups " i.e., the object of a secondary control is not only single rack, but the action group that adjacent multi rack is constituted." automatic " i.e.
Order starting only need to be manually provided, is carried out later with regard to without manual intervention automatic.The action automatically controlled in groups can be certain
A single action can also be the teamwork of automatic sequence.
Specific implementation is automatically controlled in groups：On the basis of crosshead, any number of branch of leftward or rightward continuous adjacent
Frame is set to one of certain a certain action in groups, a certain action (one action or the composite moving of automatic sequence linkage of holder
Make) it brings into operation from the starting frame of this group of one end after providing order, it is automatically transmitted by frame in group by certain program,
The action of every frame is automatically begun to, and is automatically stopped, until the last frame of this group of other end completes the action.It is dynamic what is executed in groups
Make, group position, frame number, action direction of transfer depend on crosshead position and typed selection on crosshead life
It enables.A series of parameter setting must first be made by automatically controlling in groups, that is, set condition set pattern then to automatically controlling in groups, but not
It must be arranged every time, only just be reset when to be changed after parameter deposit.Systematic difference program be automatic drop-shifting-liter,
Pushing and sliding, drawing the actions such as slip and provide automatic control function in groups.
The operating procedure automatically controlled in groups is：Act (function) selection-group set direction-starting (beginning).
During auto-controll operation in groups, it can be stopped by stop key and cancelled this secondary control.
(4) it is automatically controlled by the holder of foundation of coal winning machine position
This is the Premium Features of holder control.Firstly the need of the position for determining coalcutter, then according to the operation of working face
Regulation determines which holder should correspondingly execute what action when coalcutter runs to a certain position, these operations require to be compiled
At in program deposit system, system sends out order according to the information of coal winning machine position and corresponding bracket controller is commanded to complete automatically
These operations.The normal movements of holder completely automatically carry out.
(5) automatic compensation function when pillar unloads at work
Controller provides the automatic function of an automatic compensation PSA (Positive Set Automatic).Column exists
Such as because drop of pressure occurs for certain reason in support, when pressure is down to a certain setting value, system can execute setting prop, ftercompction automatically
To authorized pressure, and it is executable multiple, ensure supporting quality.
(6) holder is equipped with automatic spraying system, by electro hydraulic valve independent control, realizes before frame from dynamic auxiliary coal miner spray.
(7) locking and emergency stop function
For security purpose, (such as because repairing or other purposes, personnel will be at these when working face somewhere holder not being allowed to act
Position works), this holder is latched by the latch buttons on operable bracket controller, only can just be restored after unlock operation.It closes
The essence of lock is to forbid electromagnetic valve driver drive magnetic valve.For other bracket controllers other than the holder that is blocked not by
It influences, can still work normally.When working face generation may jeopardize the emergency of safety in production, any one holder control of pressable
Scram button on device processed, holder action in full face stops immediately and all control functions are prohibited before emergency stop releases.Just
Ground is latched and emergent stopping must have release operation that could restore, and button is exactly restored to original position by release operation.
(8) top beam level of incline monitoring function
Mounted angle sensor on set cap passes through measurement data, holder control to measure the angle of set cap
Device can control the posture of holder.It is sent a warning message when set cap head is too low, prevents coalcutter cutting top beam.
Set cap left and right directions inclination angle monitors in real time, and alarm is carried out when more than limit value, prevents support tilt.
(9) coal winning machine position detection function
Coal winning machine position is calculated using the rotary encoder being embedded in inside traction electric machine, and coalcutter operation information is logical
It crosses wired, wireless two ways and the external world swaps.
The accurately controlling of traction electric machine, the rigid water hammer of multiple traction electric machines are controlled to realize, frequency converter is using there is speed
The vector controlled pattern of sensor is spent, rotary encoder is installed inside traction motor for coal mining machine, rotary encoder through signals are used as and lead
Draw the velocity feedback information of motor.Frequency converter acquires the feedback information of rotary encoder, and provides external Fabric Interface, for other
Control unit calculates coal winning machine position.Coal mining machine controller calculates the position of coalcutter automatically, is communicated to holder by CAN bus
Controller, crossheading monitoring center send the information such as coal winning machine position and direction, realize that holder is automated with machine.
Two kinds of external transmission methods in position can be selected by program setting, and two methods are spare mutually, to protect
The reliable progress of card coal mining automation.
(10) hydraulic support remotely controlling functional
A. single rack straighforward operation；
B. straighforward operation holder elapses transporter, retracts transporter in groups in groups；
C. transmitter display screen monitors the support number of current selection operation holder, operational motion in real time；
D. transmitter display screen monitors the signal strength for the receiver being connected with transmitter in real time；
E. the real-time monitoring operation range instruction (hydraulic support that i.e. transmitter can control) of transmitter display screen；
F. the column pressure and pass trip of the real-time monitoring operation holder of transmitter display screen；
G. receiver has ID Auto-matching functions, the ID Auto-matching control ranges sent according to controller；
H. real-time communication function：Remote control transmitter can overlap at any time with receiver of remote-control sytem, be remotely controlled control；
(11) full face video monitoring function
A. it realizes to hydraulic support electrohydraulic control system and working face other equipment (coalcutter, drag conveyor, reprinting
Machine, crusher, stacked switch, pumping plant etc.) video monitoring.
B. 1,4,9 camera shooting interface display mode, real-time display work plane video may be used.
C. it can record a video to key position camera video information, be stored in local storage space and use for reference.
D. it realizes and the data that underground is shot is transmitted to ground, it can be achieved that in mine control centre to working face by Ethernet
Real time on-line monitoring.
(12) information prompting function
Electrohydraulic control system has following a few category information prompt facilities：The warning sound and light signal of holder action, the control of setting
The status information of parameter information, failure and error message processed, inline diagnosis and some systems itself.
(13) data transmission
Realize crossheading main control computer and ground maneuvers command centre to fully-mechanized mining working equipment it is long-range monitor and
The real-time display etc. of various data provides real-time underground work and looks unfamiliar for underground work scene and surface production, administrative staff
Production and security information.
Holder self-information uploads to ground by underground data transmission system, and on underground and well on computer
It has been shown that, is linked into mine automated system, and the data format provided it uses the OPC agreements of standard.
Specifically for pure water medium fully-mechanized mining working support system by ultrapure water preparation device, high-pressure hydraulic pump, hydraulic valve
It is formed with pipeline, filtration system, hydraulic support and Intelligent central monitoring device, feature is that the dynamic medium of support system is
Pure water.
Further, pure water medium fully-mechanized mining working support system, ultrapure water preparation device, using by pre-filtering and super
Filter-RO level-ones desalination (two-pass reverse osmosis)-EDI deep desaltings technique is to obtain pure water.
Further, pure water medium fully-mechanized mining working support system, ultrapure water preparation device include ultra-pure water deionization
Change equipment, the ultra-pure water that deionization obtains can effectively prevent metal and oxidation material in dynamic medium from being in direct contact.
Further, pure water medium fully-mechanized mining working support system, the column and balancing cylinder of hydraulic support have band
Press permutation function.
Further, pure water medium fully-mechanized mining working support system improves the column cylinder bore in the hydraulic support
Machining accuracy can reduce oil cylinder stress intercrystalline corrosion.
Further, pure water medium fully-mechanized mining working support system is realized by micro-nano coating technology in Hydraulic Elements
The upper micro-nano coating of covering is to realize the corrosion protection of Hydraulic Elements.
Further, pure water medium fully-mechanized mining working support system, hydraulic support include column and jack.
Further, pure water medium fully-mechanized mining working support system, by adding in the column and jack inner surface
Enter prefilming agent, realizes and pre- film anti-corrosion is carried out to static column and jack inner surface.
Further, pure water medium fully-mechanized mining working support system passes through the oil cylinder band in the column and jack
It is pressed to change aqueous medium system, realize that aqueous medium flows anti-corrosion.
Description of the drawings
The attached drawing of the application part is constituted for providing a further understanding of the present invention, schematic implementation of the invention
Example and its explanation are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the structure chart of pure water medium fully-mechanized mining working support system of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Below in conjunction with the accompanying drawings, each preferred embodiment of the present invention is described further：
Below with reference to the accompanying drawings and in conjunction with the embodiments the present invention will be described in detail.
As shown in Figure 1, pure water medium fully-mechanized mining working support system provided by the invention, by ultrapure water preparation device, height
Water pump, hydraulic valve and pipeline, filtration system, hydraulic support and Intelligent central monitoring device composition.
Preferably, the dynamic medium of support system is pure water.
Hydraulic support is can to realize a liter frame, drop frame, pushing and sliding, shifting by highly pressurised liquid, column and corresponding power jack
Four elemental motions of frame：Rise frame and operation valve be placed in " rising frame " position, by pumping plant through pressure hose conveying Lai highly pressurised liquid lead to
It crosses hydraulic control one-way valve and enters column cavity of resorption；The liquid of upright post upper cavity flow to liquid back pipe by manipulating valve, and then column is protruding
Holder rises；Pushing and sliding will manipulate valve and be placed in " pushing and sliding " position, highly pressurised liquid is through manipulating valve in the state that holder is in support
Into the left chamber of advancing jack；Its right chamber liquid flow to liquid back pipe through manipulating valve.At this point, advancing jack piston rod stretches out,
Push working face conveyor to coal wall.Pushing distance is generally one section of coalcutter deeply；Drop frame will manipulate valve and get to " drop frame "
Position, highly pressurised liquid flows into the epicoele of column through manipulating valve, and opens simultaneously hydraulic control one-way valve；The liquid of column cavity of resorption is through hydraulic control
Check valve flow to liquid back pipe after manipulating valve, and then column bounces back, and support height reduces；Frame is moved, in holder unloading (drop frame) or portion
After dividing unloading, valve will be manipulated and get to " moving frame " position, highly pressurised liquid enters advancing jack right chamber；Jack left chamber low pressure liquid
Liquid back pipe road is flowed back to, jack cylinder body drives holder to move to right at this time.The distance of its general movement is equal at a distance from pushing and sliding.
High-pressure hydraulic pump is mainly used for providing high pressure water.
Hydraulic valve is arranged with pipeline, realizes the control to each pipeline flow.
Filtration system carries out water source preliminary filtering for filtering, impurity therein is removed.
Pure water making machine is made pure water by pure water making machine and is used as dynamic medium, real instead of traditional emulsion
The environmental objective of existing support system.
Intelligent central monitoring system is the core control portions of support system, the sensor collection of all parts is arrived
Signal is transmitted to Intelligent central monitoring system to realize the intelligent control to entire support system.
Entire support system passes through ultrapure water preparation device, high-pressure hydraulic pump, hydraulic valve and pipeline, filtration system, hydraulic pressure branch
Frame and Intelligent central monitoring device, work compound, realize the normal work of support system, while solving pollution problem.
Further, pure water medium fully-mechanized mining working support system, ultrapure water preparation device, using by pre-filtering and super
Filter-RO level-ones desalination (two-pass reverse osmosis)-EDI deep desaltings technique is to obtain pure water.
Further, pure water medium fully-mechanized mining working support system, ultrapure water preparation device include ultra-pure water deionization
Change equipment, the ultra-pure water that deionization obtains can effectively prevent metal and oxidation material in dynamic medium from being in direct contact.
Further, pure water medium fully-mechanized mining working support system, the column and balancing cylinder of hydraulic support have band
Press permutation function.
Further, pure water medium fully-mechanized mining working support system improves the column cylinder bore in the hydraulic support
Machining accuracy can reduce oil cylinder stress intercrystalline corrosion.
Further, pure water medium fully-mechanized mining working support system is realized by micro-nano coating technology in Hydraulic Elements
The upper micro-nano coating of covering is to realize the corrosion protection of Hydraulic Elements.
Further, pure water medium fully-mechanized mining working support system, hydraulic support include column and jack.
Further, pure water medium fully-mechanized mining working support system, by adding in the column and jack inner surface
Enter prefilming agent, realizes and pre- film anti-corrosion is carried out to static column and jack inner surface.
Further, pure water medium fully-mechanized mining working support system passes through the oil cylinder band in the column and jack
It is pressed to change aqueous medium system, realize that aqueous medium flows anti-corrosion.
It these are only the preferred embodiment of the present invention, be not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification for all within the spirits and principles of the present invention, being made,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of pure water medium fully-mechanized mining working support system, by ultrapure water preparation device, water pump, hydraulic valve and pipeline, filtering
System, hydraulic support and Intelligent central monitoring device composition, which is characterized in that the dynamic medium of support system is pure water；It is described
Hydraulic support is to rely on liquid, column and corresponding power jack, and frame, drop frame, pushing and sliding and shifting frame are risen to realize；
Described liter of frame, by manipulate valve be placed in a liter rack position, by pumping plant through pressure hose conveying Lai liquid pass through hydraulic control one-way valve
Into the cavity of resorption of the column；The liquid of the epicoele of the column flow to liquid back pipe by the manipulation valve, and the column is outside
It stretches out, the hydraulic support rises；
The manipulation valve is placed in pushing and sliding position, liquid is through institute by the pushing and sliding in the state that hydraulic support is in support
Manipulation valve is stated to enter and elapse the left chamber of the jack；Its right chamber liquid flow to the liquid back pipe through the manipulation valve；At this point,
The jack is elapsed, piston rod stretches out, and pushes working face conveyor to coal wall；Pushing distance is that one of coalcutter cuts deeply；
The manipulation valve is got to drop rack position by the drop frame, and liquid flows into the epicoele of the column through the manipulation valve, and same
When open the hydraulic control one-way valve；The liquid of the cavity of resorption of the column flow to institute after the hydraulic control one-way valve, the manipulation valve
Liquid back pipe, the column retraction are stated, the height of the hydraulic support reduces；
The manipulation valve is got to shifting rack position, liquid enters by the shifting frame after hydraulic support unloading or partial relief
Elapse the jack right chamber；The liquid of the jack left chamber flows back into the liquid back pipe, at this time the cylinder body of the jack
The hydraulic support is driven to move to right；The displacement distance for moving frame is equal with the displacement distance of the pushing and sliding；
The hydraulic support is equipped with automatic spraying system, the automatic spraying system by electro hydraulic valve independent control, realize before frame from
Dynamic auxiliary coal miner spray；The Intelligent central monitoring device include stent system, crossheading monitoring center, electrohydraulic control system,
Coalcutter system, transporter, liquid-supplying system, voice locking system and National Data Processing Service, the crossheading monitoring center carry
It is realized for network interface and related software interface integrated with Mine Management System；The stent system can show bracket upright post pressure, push away
Migrate journey, set cap level inclination, latch buttons state, each controller communications status, the failure of electromagnetic valve driver, electricity
Magnet valve controls cable fault locating and displaying, can be configured, store to the parameter of electrohydraulic control system；The pure water medium fully mechanized mining
Face timbering system coordinates pure water base environment-friendly intelligent combine coal mining unit, realizes the Highgrade integration of coal excavation apparatus and is
Systemization, the intelligent environment protection for improving production efficiency, the matching of unit and the coal excavation apparatus；
The electrohydraulic control system is using the configuration mode of 1 control 3, i.e. 1 bracket controller of every 3 holders installation, the holder
Controller volume is 259mm × 87mm × 109mm, and industry is minimum；Coordinate holder straighforward operation, the bracket controller that can install
At front column rear, far from coal wall, it effectively prevent blowing out the impact caused by the bracket controller；The electrohydraulic control system
Critical piece IP68 degree of protection, remote control operation holder ensures holder operating personnel safety；In addition to carrying out holder control
It can also be achieved working face any position multiple spot gas, wind speed, Humidity Detection and interlocked with power-equipment, personnel's detection below holder
It fails and interlocks with automatic function；The electrohydraulic control system includes single machine control and controls in groups, and is manually operated ranging from left
Three frame of side, three frame of the right, operating in groups ranging from ten frame of the left side, ten frame of the right；
The bracket controller includes automatic compensation function, and when the pressure of the column is down to setting value, system can be held automatically
Row setting prop, ftercompction can perform to authorized pressure repeatedly, to ensure supporting quality；
Mounted angle sensor on the set cap passes through measurement data, holder control to measure the angle of set cap
Device can control the posture of holder；It is sent a warning message when the set cap head is too low, prevents coalcutter cutting
Top beam；Set cap left and right directions inclination angle monitors in real time, and alarm is carried out when more than limit value, prevents holder from inclining
?；
The column and balancing cylinder of the hydraulic support have permutation function with pressure.
2. pure water medium fully-mechanized mining working support system according to claim 1, which is characterized in that prepared by the ultra-pure water
Device, using by pre-filtering and ultrafiltration-RO level-ones desalination-EDI deep desaltings technique to obtain pure water.
3. pure water medium fully-mechanized mining working support system according to claim 1, which is characterized in that prepared by the ultra-pure water
Device includes ultra-pure water deionization equipment, and the ultra-pure water that deionization obtains can effectively prevent metal and oxidation in dynamic medium
Substance is in direct contact.
4. pure water medium fully-mechanized mining working support system according to claim 1, which is characterized in that improve the hydraulic pressure branch
Column cylinder bore machining accuracy in frame, can reduce oil cylinder stress intercrystalline corrosion.
5. pure water medium fully-mechanized mining working support system according to claim 4, which is characterized in that pass through micro-nano coating
Technology realization covers micro-nano coating to realize the corrosion protection of Hydraulic Elements on Hydraulic Elements.
6. pure water medium fully-mechanized mining working support system according to claim 1, which is characterized in that the hydraulic support packet
Include column and jack.
7. pure water medium fully-mechanized mining working support system according to claim 6, which is characterized in that by the column
And prefilming agent is added in jack inner surface, realizes and carries out pre- film anti-corrosion to static column and jack inner surface.
8. pure water medium fully-mechanized mining working support system according to claim 6, which is characterized in that by the column
And the oil cylinder displacement aqueous medium system with pressure of jack, realize that aqueous medium flows anti-corrosion.
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| CN108533274B (en) * | 2018-04-28 | 2024-01-23 | 四川公路桥梁建设集团有限公司 | Intelligent protection excavation trolley |
| CN109882473B (en) * | 2019-03-19 | 2020-06-19 | 首钢集团有限公司 | Pollution balance control method for hydraulic system |
| CN111255678B (en) * | 2019-10-29 | 2024-07-12 | 北京天玛智控科技股份有限公司 | High-pressure mining plunger pump for water medium mine |
| CN111237014B (en) * | 2019-10-29 | 2021-08-03 | 北京天地玛珂电液控制系统有限公司 | Aqueous medium guarantee system for coal face |
| CN211549756U (en) * | 2019-10-29 | 2020-09-22 | 北京天地玛珂电液控制系统有限公司 | Rapid frame moving system for aqueous medium hydraulic support |
| CN112671166B (en) * | 2020-12-07 | 2022-03-29 | 北京天玛智控科技股份有限公司 | Self-powered system of fully mechanized mining face |
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| CN2188654Y (en) * | 1994-01-31 | 1995-02-01 | 杨金生 | Combined alternating bracing hydraulic support |
| CN1221727C (en) * | 2002-09-09 | 2005-10-05 | 神华集团有限责任公司 | Continuous miner house column type short arm mechanized coal mining process and support equipment thereof |
| JP4383727B2 (en) * | 2002-09-27 | 2009-12-16 | 日鉄環境エンジニアリング株式会社 | Iron-containing acid wastewater treatment material and iron-containing acid wastewater treatment method |
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Inventor after: Li Dong Inventor after: Wang Haijun Inventor after: Li Yong Inventor after: Chen E Inventor after: Liu Wendong Inventor before: Wang Haijun Inventor before: Wu Jialiang Inventor before: Yu Yang Inventor before: Li Yong Inventor before: Su Jian Inventor before: Chen E |
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