CN108518243A - A kind of fully-mechanized mining working intelligence feed liquid method and system - Google Patents
A kind of fully-mechanized mining working intelligence feed liquid method and system Download PDFInfo
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- CN108518243A CN108518243A CN201810333524.0A CN201810333524A CN108518243A CN 108518243 A CN108518243 A CN 108518243A CN 201810333524 A CN201810333524 A CN 201810333524A CN 108518243 A CN108518243 A CN 108518243A
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- 239000007788 liquid Substances 0.000 title claims abstract description 112
- 238000005065 mining Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000009471 action Effects 0.000 claims abstract description 83
- 239000000839 emulsion Substances 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims description 170
- 238000000429 assembly Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 5
- 210000000481 breast Anatomy 0.000 claims 1
- 238000004945 emulsification Methods 0.000 abstract description 3
- 230000000875 corresponding effect Effects 0.000 description 12
- 239000012530 fluid Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/08—Distributing hydraulic power; Pipe networks for hydraulic liquid
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
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Abstract
A kind of fully-mechanized mining working intelligence feed liquid method of present invention offer and system, the holder that method therein makees face by obtaining fully mechanized mining estimate action and estimate actuation time；Action is estimated according to the holder and obtains feed flow demand, in conjunction with current time and described estimated actuation time according to the feed flow demand and is obtained flow demand and/or pressure demand；It is described estimate actuation time before corresponding with the flow demand and/or the pressure demand control signal of output.The required emulsification liquid measure of the action that will be executed according to holder may be implemented to provide emulsion for it, to realize on-demand feed flow, and since the action of feed flow responds before estimating actuation time, can required emulsification liquid measure timely be provided for holder, avoid postponing on the time.
Description
Technical field
The present invention relates to fully-mechanized mining working technical field of hydraulic, and in particular to a kind of fully-mechanized mining working intelligence feed flow side
Method and system.
Background technology
Currently, the liquid-supplying system that fully-mechanized mining working uses, including more emulsion pumps, more atomizing pumps and more liquid
Case, for the purposes such as the safety support of fully-mechanized mining working surface hydraulic support and action and coal miner spray depositing dust and equipment cooling.
Separate unit emulsion pump maximum is 630L/min for flow quantity at present, and separate unit atomizing pump maximum stream flow is 1000L/min, passes through collection
Middle distributed or centralized control system realizes single pump operation and more pump coordinated signals；By frequency converter and unloading electromagnetic valve, with
And pressure feedback, pumping plant flow and pressure are realized and implement to adjust, to achieve the purpose that automate feed flow.Prior art
The shortcomings that mainly have following several respects：
1, the operating mode of fully-mechanized mining working exploitation is extremely complex, and the hydraulic support single rack of mating electrohydraulic control system just has drop to move
Action is risen, also tries to stop people from fighting each other and is acted with pushing and sliding in groups, be real-time change to flow demand, therefore to liquid-supplying system for flow quantity
It is also real-time change, the prior art mainly carries out flow grade by detecting main line pressure to judge turn on pump quantity
Rough calculation；And singly pump through frequency converter, flow is controlled, and the reflection speed of frequency converter is second grade, electromagnetism off-load
Be reflected as Millisecond, therefore in the case where flowed fluctuation situation frequency converter is not fed back to reasonable value, single pump will appear due to
Automatic-boosting off-load phenomenon caused by pressure oscillation, i.e., the not energy-efficient work that also cannot be satisfied working face flow real-time change are wanted
It asks；
2. the mode of conventional asynchronous motor+emulsion pump, emulsion pump generally requires deceleration transmission system, and working face
Crossheading narrow working environment in face limits the appearance and size of emulsion pump, therefore separate unit emulsion pump and separate unit spraying at present
Pump cannot meet the fluid power demand of fully-mechanized mining working, need more while opening progress, the equipment for causing liquid-supplying system total is long
Degree and weight are overweight, have under the operating mode of slope change often for underground, and causing drawing to move train, there is huge security risks.
Therefore, there is an urgent need for a kind of fully-mechanized mining working intelligence feed liquid methods and system to solve the above problem of the prior art.
Invention content
The present invention is intended to provide a kind of fully-mechanized mining working intelligence feed liquid method and system, with solve in the prior art can not be by
Need the technical problem of feed flow and liquid-supplying system complexity.
For this purpose, the present invention provides a kind of fully-mechanized mining working intelligence feed liquid method, include the following steps：
Information acquiring step：Obtain fully-mechanized mining working holder action message, the action message include holder estimate it is dynamic
Make and estimate actuation time；
Control on demand step：Action is estimated according to the holder and obtains feed flow demand, is combined and is worked as according to the feed flow demand
It the preceding moment and described estimate actuation time and obtains flow demand and/or pressure demand；It is described estimate actuation time before it is defeated
Go out control signal corresponding with the flow demand and/or the pressure demand；
The control signal is carried according to the flow demand and/or the pressure demand for holder for controlling feed flow pumping plant
For emulsion.
Optionally, in above-mentioned fully-mechanized mining working intelligence feed liquid method, in the control on demand step, the control signal
Including the first enabling signal and the second enabling signal, wherein：
Action, which is estimated, according to the holder judges holder operating mode；If the holder operating mode is with machine pattern,
The first enabling signal is exported to start at least variable frequency pump in feed flow pumping plant；
The holder to prestore is obtained with machine parameter, the feed flow demand is obtained with machine parameter according to described, and then is obtained described
Flow demand and/or the pressure demand；
Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；
According to the reality for flow quantity and the flow demand difference and/or the practical liquid supply pressure with it is described
The difference of pressure demand determines the general pump quantity for needing to open；
It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start solution feed pump
The general pump of respective numbers in standing.
Optionally, further include walking as follows in the control on demand step in above-mentioned fully-mechanized mining working intelligence feed liquid method
Suddenly：
If all general pumps in feed flow pumping plant are open state, and in preset time the reality for flow quantity not
The flow demand and/or the practical liquid supply pressure, which can be met, cannot meet the pressure demand, then send out stopping signal with
Feed flow pumping plant is closed, alarm signal is simultaneously emitted by.
Optionally, in above-mentioned fully-mechanized mining working intelligence feed liquid method, in the control on demand step, the control signal
Further include third enabling signal comprising following steps：
If all general pumps in feed flow pumping plant are open state, and in the first preset time the reality for liquid stream
Amount cannot meet the flow demand and/or the practical liquid supply pressure and cannot meet the pressure demand, then sends out described the
Three enabling signals are to open at least stand-by pump in feed flow pumping plant；
If all general pumps and stand-by pump in feed flow pumping plant are open state, and described in the second preset time
Reality cannot meet the flow demand and/or the practical liquid supply pressure for flow quantity cannot meet the pressure demand, then
Stopping signal is sent out to close feed flow pumping plant, is simultaneously emitted by alarm signal.
Optionally, in above-mentioned fully-mechanized mining working intelligence feed liquid method, in the control on demand step：
Determine the reality for flow quantity and the flow demand difference and/or the practical liquid supply pressure with it is described
After the difference of pressure demand, the metered flow of default general pump opening sequence, each general pump when being acted according to different support
And rated pressure, determine the general pump quantity for needing to open.
The present invention also provides a kind of fully-mechanized mining working intelligence liquid-supplying systems, including holder electrohydraulic control unit, pumping plant to control
Unit and feed flow pumping plant, wherein：
The holder electrohydraulic control unit, controls the holder action of fully-mechanized mining working, and holder action message is sent to
The pumping plant control unit, the action message include that holder estimates action and estimates actuation time；
The pumping plant control unit obtains the holder action message, and estimating action according to the holder obtains feed flow need
It asks, in conjunction with current time and described estimate actuation time according to the feed flow demand and obtain flow demand and/or pressure demand；
It is described estimate actuation time before corresponding with the flow demand and/or the pressure demand control signal of output；
The feed flow pumping plant, after receiving the control signal that the pumping plant control unit exports, according to the flow
Demand and/or the pressure demand provide emulsion for the holder.
Optionally, in above-mentioned fully-mechanized mining working intelligence liquid-supplying system, the feed flow pumping plant includes an at least variable frequency pump
At least a general pump, system further include：
Flow sensor and/or pressure sensor are set to the feed flow pumping plant liquid outlet, go out for detecting feed flow pumping plant
Liquid mouth it is practical for flow quantity and/or practical liquid supply pressure；
The pumping plant control unit estimates action according to the holder and judges holder operating mode；If the holder work
Pattern is then to export the first enabling signal with machine pattern to start at least variable frequency pump in feed flow pumping plant；What acquisition prestored
Holder obtains the feed flow demand with machine parameter, according to described with machine parameter, and then obtains the flow demand and/or the pressure
Power demand；Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；According to the reality for flow quantity
With the difference of the flow demand and/or the difference of the practical liquid supply pressure and the pressure demand, determine what needs were opened
General pump quantity；It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start supply
The general pump of respective numbers in pump station.
Optionally, further include alarm assemblies in above-mentioned fully-mechanized mining working intelligence liquid-supplying system：
The pumping plant control unit, all general pumps in feed flow pumping plant are open state, and in preset time
The reality cannot meet the flow demand and/or the practical liquid supply pressure for flow quantity cannot meet the pressure need
Stopping signal is sent out when asking to close feed flow pumping plant, is simultaneously emitted by alarm signal；
The alarm assemblies receive alert after the alarm signal.
Optionally, in above-mentioned fully-mechanized mining working intelligence liquid-supplying system, the feed flow pumping plant further includes at least one spare
Pump：
The pumping plant control unit, all general pumps in feed flow pumping plant are open state, and in preset time
The reality cannot meet the flow demand and/or the practical liquid supply pressure for flow quantity cannot meet the pressure need
When asking, then the third enabling signal is sent out to open at least stand-by pump in feed flow pumping plant；
If all general pumps and stand-by pump in feed flow pumping plant are open state, and described in the second preset time
Reality cannot meet the flow demand and/or the practical liquid supply pressure for flow quantity cannot meet the pressure demand, then
Stopping signal is sent out to close feed flow pumping plant, is simultaneously emitted by alarm signal；
The alarm assemblies receive alert after the alarm signal.
Optionally, in above-mentioned fully-mechanized mining working intelligence liquid-supplying system, the feed flow pumping plant, general pump tool in part therein
There are big flow, the characteristic of low-pressure, characteristic of remaining general pump with small flow, high pressure；
The pumping plant control unit, inside prestore the metered flow and rated pressure of each general pump, and it is different
The opening sequence of difference general pump when holder acts；Determining difference of the reality for flow quantity and the flow demand, and/
Or after the difference of the practical liquid supply pressure and the pressure demand, according to preset general pump opening sequence, each general pump
Metered flow and rated pressure, determine and need the general pump quantity opened.
Above technical scheme provided by the invention at least has the advantages that compared with prior art：
Fully-mechanized mining working intelligence feed liquid method provided by the invention and system, method therein is by obtaining fully-mechanized mining working
Holder estimate action and estimate actuation time；Action is estimated according to the holder and obtains feed flow demand, according to the feed flow need
It asks in conjunction with current time and described estimate actuation time and obtain flow demand and/or pressure demand；It is described estimate action when
Between before corresponding with the flow demand and/or the pressure demand control signal of output.Above scheme provided by the invention,
The required emulsification liquid measure of the action that will be executed according to holder may be implemented to provide emulsion for it, supplied on demand to realize
Liquid, and since the action of feed flow responds before estimating actuation time, can timely be provided for holder required
Liquid measure is emulsified, avoids and postpones on the time.
Description of the drawings
Fig. 1 is the method flow diagram of the fully-mechanized mining working intelligence feed liquid method described in one embodiment of the invention；
Fig. 2 is the method flow diagram of the fully-mechanized mining working intelligence feed liquid method described in another embodiment of the present invention；
Fig. 3 is the method flow diagram of the fully-mechanized mining working intelligence feed liquid method described in another embodiment of the present invention；
Fig. 4 is the functional block diagram of the fully-mechanized mining working intelligence liquid-supplying system described in one embodiment of the invention；
Fig. 5 is the fully-mechanized mining working intelligence liquid-supplying system functional block diagram described in another embodiment of the present invention.
Specific implementation mode
Embodiment is further illustrated the present invention below in conjunction with attached drawing.In the description of the present invention, it should be noted that art
The orientation or positional relationship of the instructions such as language "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of simplifying for the description present invention and describes, rather than instruction or dark
Show that signified device or component there must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.In addition, term " first ", " second ", " third " are used for description purposes only, and it should not be understood as instruction or dark
Show relative importance.Wherein, term " first position " and " second position " are two different positions.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
The connection of two component internals.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment 1
The present embodiment provides a kind of fully-mechanized mining working intelligence feed liquid methods, are used in the control system of feed flow pumping plant, such as Fig. 1
It is shown, include the following steps：
S101：Information acquiring step：The holder action message of fully-mechanized mining working is obtained, the action message includes that holder is pre-
Estimate action and estimates actuation time；The information can be obtained by holder electrohydraulic control unit, because of holder electrohydraulic control unit
For on fully-mechanized mining working standoff working condition carry out unified control, therefore it can predict each holder
In next step action namely its can get accurate holder and estimate action and estimate actuation time, it is therein when estimating action
Between be to estimate the initial time of action.
S102：Control on demand step：Action is estimated according to the holder and obtains feed flow demand, according to the feed flow demand knot
It closes current time and described estimate actuation time and obtain flow demand and/or pressure demand；It is described estimate actuation time it
It is preceding to export control signal corresponding with the flow demand and/or the pressure demand；The control signal is for controlling feed flow
Pumping plant provides emulsion according to the flow demand and/or the pressure demand for holder.
The parameter of the hydraulic cylinder of each holder in fully-mechanized mining working is known, and holder executes each action
When flow demand can calculate.Because the control unit of liquid-supplying system, which has been obtained for each holder, to be executed
Action what is, while obtained holder execution action time, therefore can holder action before calculate branch in advance
Frame executes the total feed flow demand of action estimated, and outflow and pressure demand can be calculated according to the feed flow demand, by flow and
Signal is sent to feed flow pumping plant in order to control for pressure demand conversion, to ensure feed flow pumping plant according to the flow and pressure demand to holder
Carry out feed flow operation.Because having determined that holder executes the initial time for estimating action, therefore i.e. controllable before the time
Feed flow pumping plant responds feed flow demand, avoids causing to be delayed.
Embodiment 2
Fully-mechanized mining working intelligence feed liquid method provided in this embodiment is used in the control system of feed flow pumping plant, such as Fig. 2 institutes
Show, includes the following steps：
S201：Information acquiring step：The holder action message of fully-mechanized mining working is obtained, the action message includes that holder is pre-
Estimate action and estimates actuation time；The information can be obtained by holder electrohydraulic control unit.
S202：Action, which is estimated, according to the holder judges holder operating mode；If the holder operating mode is with machine mould
Formula then exports the first enabling signal to start at least variable frequency pump in feed flow pumping plant；And execute step S203；Otherwise
Execute step S208.Refer to wherein that holder follows the speed of coalcutter to move forwards with machine pattern.When the Working mould for determining holder
Formula be with machine pattern after, start at least a variable frequency pump, the first enabling signal first and can be transmitted to frequency converter, pass through frequency converter
Control frequency conversion pump operation.
S203：The holder to prestore is obtained with machine parameter, obtains the feed flow demand with machine parameter according to described, and then obtain
The flow demand and/or the pressure demand；The control unit of industrial system is according to the holder action message got in real time
Holder is obtained with machine parameter.During holder is with machine, according to holder electrohydraulic control unit pre-set with machine parameter, branch
The data such as frame action message and corresponding holder oil cylinder cylinder diameter, calculate will execute action needed for for flow quantity with supply
Hydraulic coupling.It is preserved after can industrial requirement data being carried out precomputation in advance in the present embodiment, such as when coal shearer speed is N
When, the feed flow demand Qn per minute can be calculated by following formula：Qn=Q1 × N1+Q2 × N2+Q3 × N3+Q4
×N4+Q5×N5；Wherein：
Q1=3.14 × D12 × L1/4；Q2=3.14 × D22 × L2/4；Q3=3.14 × D32 × L3/4；Q4=3.14
×(D4-D5)2×L4/4；Q5=3.14 × D52 × L1/4；
The meaning that parameters represent in above formula is as follows：D1 is input upright post jack cylinder diameter, and L1 acts for column
Stroke；D2 is carried bottom jack cylinder diameter, and L2 is carried bottom jack stroke；D3 is that level-one mutually helps jack cylinder diameter, L3 mutual for level-one
Help jack stroke；D4 is advancing jack cylinder diameter, and D5 is advancing jack bar diameter, and L4 is advancing jack stroke.Q1 is vertical
Column setting prop fluid volume, Q2 are lift bottom fluid volume, and it is pushing and sliding fluid volume, Q5 that Q3 mutually helps very heavy jacking post fluid volume, Q4 for level-one
For fluid volume of trying to stop people from fighting each other；N1 is that setting prop acts number of holders；N2 is that lift bottom acts number of holders；N3 is that mutually side acts holder to level-one
Quantity；N4 is that pushing and sliding act number of holders；N5 is action number of holders of trying to stop people from fighting each other.
Above-mentioned calculation is pre-saved, in actual operation, after getting the pre- action of holder, judges that holder is to belong to
In which type, whether execution is above-mentioned corresponding actions, and determines the corresponding number of holders of each action, in conjunction with above-mentioned
Computation model can be obtained feed flow demand in minute.It is understood that providing portion support in above-mentioned calculation formula
Partial act in the case of feed flow demand calculation, in practical application, should be according to being actually related in fully-mechanized mining working
The action that may execute of cantilever type, number of holders and holder, set corresponding computation model.
S204：Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；It can be by going out liquid
The mode of mouth setting flow sensor, pressure sensor, obtains the practical for flow quantity, practical liquid supply pressure of liquid outlet in real time.
S205：Judge whether the reality meets the flow demand for flow quantity, and the practical liquid supply pressure is
It is no to meet pressure demand.The then return to step S201 when the two meets simultaneously, it is no to then follow the steps S206.
S206：According to the reality for the difference of flow quantity and the flow demand and/or the practical liquid supply pressure and
The difference of the pressure demand determines the general pump quantity for needing to open.Because having had been switched on variable frequency pump in advance, and variable frequency pump
Maximum stream flow, maximum pressure be known, if opened without other general pumps, flow demand and variable frequency pump be most at this time
Difference between difference, pressure demand between big flow and variable frequency pump maximum pressure can be used as determining the base of general pump quantity
It is accurate.Specifically include which general pump in feed flow pumping plant, the type of general pump, model, the metered flow of permission and rated pressure are equal
Village can directly be calculated according to difference and need to open which general pump can expire slightly in the control system of feed flow pumping plant
Sufficient the demand.
S207：It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start
The general pump of respective numbers in feed flow pumping plant.
S208：It exports non-with machine pattern feed flow control signal.It is non-with machine pattern be coalcutter not run or holder
Without following coalcutter to execute action.The required flow of holder and pressure are to have predefined at this time.The control of feed flow pumping plant
System processed controls first opens variable frequency pump, and when variable frequency pump full speed feed flow and whithin a period of time, system pressure cannot still reach mesh
When marking pressure, control system sends out signal, and First power frequency pump startup is opened in control.Feed flow is with First power frequency pump work at this time
Based on, variable frequency pump automatically adjusts liquid supply rate as fluid infusion.Whithin a period of time, if system cannot still meet feed flow demand, control
System processed sends out signal again, controls second power frequency pump startup.Feed flow is based on second power frequency pump work at this time, First
General pump is secondary, and variable frequency pump always works in automatic adjustment liquid supply rate state, finally realizes on-demand feed flow.And so on, if
All general pumps are run simultaneously is still unsatisfactory for feed flow requirement for a period of time, then system-down is alarmed, and is opened again after need to investigating failure
Machine.When the holder fluid volume of working face is few, within a certain period of time, when feed flow pumping plant output pressure is stablized, stop successively First,
Second general pump makes pumping plant output pressure maintain setting pressure or so, and frequency conversion liquid pump is always in converting operation working condition.
Holder is worked and is believed before execution action by the said program in the present embodiment, hydraulic support electrohydraulic control system
Breath is sent to the control system of integrated feed flow pumping plant, and the control system of feed flow pumping plant is acted according to the holder of force piece to be believed
Breath, by on-demand feed flow algorithm, calculates flow demand, while feed flow pumping plant being driven to be responded before holder work, ensures to use
Liquid need satisfaction working face needs.Under on-demand feed flow pattern, each solution feed pump is smoothly controlled using converter technique, is realized
The control of output flow achievees the purpose that match with liquid demand, improves pumping plant flow utilization rate, when reducing pump free-runing operation
Between and energy consumption, reduce electromagnetism off-load number, promote the service life of unloading electromagnetic valve.
Embodiment 3
Fully-mechanized mining working intelligence feed liquid method provided in this embodiment is used in the control system of feed flow pumping plant, such as Fig. 3 institutes
Show, includes the following steps：
S301：Information acquiring step：The holder action message of fully-mechanized mining working is obtained, the action message includes that holder is pre-
Estimate action and estimates actuation time；The information can be obtained by holder electrohydraulic control unit.
S302：Action, which is estimated, according to the holder judges holder operating mode；If the holder operating mode is with machine mould
Formula then exports the first enabling signal to start at least variable frequency pump in feed flow pumping plant；And execute step S303；Otherwise
Execute step S312.
S303：The holder to prestore is obtained with machine parameter, obtains the feed flow demand with machine parameter according to described, and then obtain
The flow demand and/or the pressure demand；
S304：Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；
S305：Judge whether the reality meets the flow demand for flow quantity, and the practical liquid supply pressure is
It is no to meet pressure demand.The then return to step S301 when the two meets simultaneously, it is no to then follow the steps S306.
S306：According to the reality for the difference of flow quantity and the flow demand and/or the practical liquid supply pressure and
The difference of the pressure demand determines that the general pump quantity for needing to open is all；
S307：It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start
Whole general pump in feed flow pumping plant.
S308：Judge whether the reality meets the flow demand for flow quantity in the first preset time, while described
Whether practical liquid supply pressure has met the pressure demand.Return to step S301, otherwise executes if meeting above-mentioned condition simultaneously
Step S309.
S309：The third enabling signal is sent out to open at least stand-by pump in feed flow pumping plant；
S310：Judge whether the reality meets the flow demand, while institute for flow quantity in the second preset time
State whether practical liquid supply pressure meets the pressure demand, return to step S301, no to then follow the steps S311 if meeting simultaneously.
S311：Stopping signal is sent out to close feed flow pumping plant, is simultaneously emitted by alarm signal.
S312：It exports non-with machine pattern feed flow control signal.
Said program provided in this embodiment, after opening solution feed pump according to demand, by acquiring at liquid outlet in real time
Actual flow, actual pressure judge whether to have met demand, if in the case of not meeting, continued on spare
Pump, is further continued for judging later whether meet demand within the regular hour.When all industrial pumps in feed flow pumping plant and spare
Pump has been in if open state all cannot be satisfied feed flow demand, then with regard to stopping alarm.
In addition, step S311 can also be jumped directly to after above-mentioned steps 308, it is suitable for stand-by pump not in this case
In the case of participating in flow and pressure adjustment, in that case, the effect of stand-by pump is in the failure of a certain general pump, nothing
When method works normally, the general pump of failure is substituted using stand-by pump.
In the above process, the control system of feed flow pumping plant is to supervise in real time to the working condition of the holder on fully-mechanized mining working
Control, when it calculates the feed flow demand of force piece less than the flow that all general pumps are opened, in a timing
When interior feed flow pumping plant output pressure is stablized, which part general pump (1 or 2) can be stopped according to liquid situation, make confession
Pump station output pressure can ensure that feed flow demand, variable frequency pump exist in converting operation working condition always with flow, automatically
Adjust liquid supply rate.
In addition, in above scheme, the general pump in feed flow pumping plant can be divided into two classes, and A classes are big flow, low-pressure, B
Class is that small flow, high pressure, and two class general pumps share liquid case and liquid feeding pipeline, and in normal work, the cooperation of two class pumping plants makes
With A class pumping plants are responsible for big flow feed flow, and B class pumping plant pressure charges are promoted.Especially during holder setting prop, in branch bridge joint
Before touching top plate, cavity pressure is very small under column, pressure not superelevation 3MPa, but the flow needed is very big, and when holder contacts
After top plate, column stroke varies less, due to the Incoercibility of liquid.If opened simultaneously using A and B class pumping plants, just
It can realize the automatic switchover of pumping plant feed flow, i.e., when just having started setting prop, feed flow, pressure reach A class pumping plants and sets A simultaneously with B classes pumping plant
After definite value, A class pumping plant off-loads complete the action of column cavity of resorption boost in pressure by B class pumping plant feed flows.That is, in different branch
Under frame working condition, the boot sequence of different types of general pump has priority selection.And each holder working condition with
Corresponding power frequency pump startup priority orders are pre-stored in the control system of feed flow pumping plant.Accordingly, it is determined that the reality is for liquid stream
After the difference and/or the practical liquid supply pressure of amount and the flow demand and the difference of the pressure demand, according to different branch
The metered flow and rated pressure of default general pump opening sequence, each general pump when frame acts, determine the work for needing to open
Frequency pump quantity.
Through the above scheme, the power total capacity for reducing the system configuration of feed flow pumping plant, advantageously reduces hydraulic shock,
Since big flow pumping plant is constantly in low pressure operation, be conducive to the service life for improving product, in favor of reducing opening for big flow pumping plant
Hair and manufacturing cost, can the effectively save energy.In addition, the requirement in said program for feed flow pumping plant reduces, feed flow pumping plant
Lubricating system is centralized arrangement, standby or 1 with 2 standby schemes with 1 using 1, is equipped with unified filtration system and cooling system, favorably
Cost is advantageously reduced in the reliability of the system of raising, convenient for safeguarding.
Embodiment 2
The present embodiment provides a kind of fully-mechanized mining working intelligence liquid-supplying systems, as shown in figure 4, including holder electrohydraulic control unit
401, pumping plant control unit 402 and feed flow pumping plant 403, wherein the holder electrohydraulic control unit 401, controls fully-mechanized mining working
Holder 400 acts, and holder action message is sent to the pumping plant control unit 402, and the action message includes that holder is pre-
Estimate action and estimates actuation time；The pumping plant control unit 402 obtains the holder action message, pre- according to the holder
Estimate action and obtain feed flow demand, in conjunction with current time and described estimate actuation time according to the feed flow demand and obtain flow need
It asks and/or pressure demand；It is described estimate actuation time before output it is corresponding with the flow demand and/or the pressure demand
Control signal；The feed flow pumping plant 403, after receiving the control signal that the pumping plant control unit 402 exports, according to
The flow demand and/or the pressure demand are that the holder 400 provides emulsion.
The parameter of the hydraulic cylinder of each holder in fully-mechanized mining working is known, and holder executes each action
When flow demand can calculate.Because the control unit of liquid-supplying system, which has been obtained for each holder, to be executed
Action what is, while obtained holder execution action time, therefore can holder action before calculate branch in advance
Frame executes the total feed flow demand of action estimated, and outflow and pressure demand can be calculated according to the feed flow demand, by flow and
Signal is sent to feed flow pumping plant in order to control for pressure demand conversion, to ensure feed flow pumping plant according to the flow and pressure demand to holder
Carry out feed flow operation.Because having determined that holder executes the initial time for estimating action, therefore i.e. controllable before the time
Feed flow pumping plant responds feed flow demand, avoids causing to be delayed.
In said program, the feed flow pumping plant 403 includes an at least variable frequency pump and at least a general pump, system are also wrapped
It includes：
Flow sensor and/or pressure sensor are set to 403 liquid outlet of feed flow pumping plant, for detecting solution feed pump
Stand the practical for flow quantity and/or practical liquid supply pressure of 403 liquid outlets；
The pumping plant control unit 402 estimates action according to the holder and judges holder operating mode；If the timberer
Operation mode is then to export the first enabling signal with machine pattern to start at least variable frequency pump in feed flow pumping plant；Acquisition prestores
Holder with machine parameter, obtain the feed flow demand with machine parameter according to described, and then obtain the flow demand and/or described
Pressure demand；Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；According to the reality for liquid stream
Amount and the difference of the flow demand and/or the difference of the practical liquid supply pressure and the pressure demand, determination need to open
General pump quantity；It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start
The general pump of respective numbers in feed flow pumping plant.
Holder is worked and is believed before execution action by the said program in the present embodiment, hydraulic support electrohydraulic control system
Breath is sent to the control system of integrated feed flow pumping plant, and the control system of feed flow pumping plant is acted according to the holder of force piece to be believed
Breath, by on-demand feed flow algorithm, calculates flow demand, while feed flow pumping plant being driven to be responded before holder work, ensures to use
Liquid need satisfaction working face needs.Under on-demand feed flow pattern, each solution feed pump is smoothly controlled using converter technique, is realized
The control of output flow achievees the purpose that match with liquid demand, improves pumping plant flow utilization rate, when reducing pump free-runing operation
Between and energy consumption, reduce electromagnetism off-load number, promote the service life of unloading electromagnetic valve.
System in said program further includes alarm assemblies：The pumping plant control unit 402, in feed flow pumping plant 403
All general pumps are open state, and the reality cannot meet the flow demand for flow quantity in preset time, and/
Or the practical liquid supply pressure sends out stopping signal to close feed flow pumping plant when cannot meet the pressure demand, is simultaneously emitted by report
Alert standby signal；The alarm assemblies receive alert after the alarm signal.
In above scheme, the feed flow pumping plant 403 further includes an at least stand-by pump：The pumping plant control unit 402,
All general pumps in feed flow pumping plant 403 are open state, and the reality cannot meet for flow quantity in preset time
When the flow demand and/or the practical liquid supply pressure cannot meet the pressure demand, then sends out the third and start letter
Number to open at least stand-by pump in feed flow pumping plant；If all general pumps and stand-by pump in feed flow pumping plant 403 are
Open state, and the reality cannot meet the flow demand and/or the reality for flow quantity in the second preset time
Liquid supply pressure cannot meet the pressure demand, then send out stopping signal to close feed flow pumping plant, be simultaneously emitted by alarm letter
Number；The alarm assemblies receive alert after the alarm signal.
Said program provided in this embodiment, after opening solution feed pump according to demand, by acquiring at liquid outlet in real time
Actual flow, actual pressure judge whether to have met demand, if in the case of not meeting, continued on spare
Pump, is further continued for judging later whether meet demand within the regular hour.When all industrial pumps in feed flow pumping plant and spare
Pump has been in if open state all cannot be satisfied feed flow demand, then with regard to stopping alarm.
In above scheme, the feed flow pumping plant 403, part general pump therein has big flow, the characteristic of low-pressure,
Characteristic of the remaining general pump with small flow, high pressure；The pumping plant control unit 402, inside prestore each general pump
The opening sequence of difference general pump when metered flow and rated pressure and different support act；Determining the practical feed flow
After the difference and/or the practical liquid supply pressure of flow and the flow demand and the difference of the pressure demand, according to default
General pump opening sequence, each general pump metered flow and rated pressure, determine and need the general pump quantity opened.Just
Often when work, two class pumping plants are used cooperatively, and A class pumping plants are responsible for big flow feed flow, and B class pumping plant pressure charges are promoted.Especially
During holder setting prop, before holder contacts top plate, cavity pressure is very small under column, pressure not superelevation 3MPa, but need
Flow is very big, and after holder contacts top plate, column stroke varies less, due to the Incoercibility of liquid.If using A
When being opened simultaneously with B class pumping plants, the automatic switchover of pumping plant feed flow will be realized, i.e., when just having started setting prop, A and B classes pumping plant are simultaneously
Feed flow, after pressure reaches A class pumping plant setting values, A class pumping plant off-loads are completed column cavity of resorption boost in pressure by B class pumping plant feed flows and are moved
Make.
Illustrate the practical realization process of said program with reference to concrete application example shown in fig. 5.System packet therein
Include holder electrohydraulic control unit 501, pumping plant control unit 502,503, No. 1 variable frequency pump 504 of frequency converter, stacked switch 505,2
The general pump 508 of general pump 507,4 of general pump 506,3 is used as stand-by pump, flow sensor/pressure sensor 509.
Pumping plant control unit 502 is communicated with holder electrohydraulic control unit 501 by Ethernet, holder electrichydraulic control list
Holder action message on working face is sent in pumping plant control unit 502 by member 501 in real time, and pumping plant control unit 502 is being received
To after holder action message, working face operating mode is first determined whether, according to operating mode, execute different control logics, specifically
It is as follows：
(1) non-with machine pattern
In the case that working face needs to be in automatic operation mode with liquid and pumping plant control unit 502, pass through operation console
Startup order is sent to 503, No. 1 variable frequency pump 504 of frequency converter and started running by button, pumping plant control unit 502, pumping plant control at this time
Unit 502 processed monitors flow system flow/pressure by 509 moment of flow sensor/pressure sensor.When No. 1 504 full speed of variable frequency pump
Feed flow and whithin a period of time, when flow system flow/pressure cannot still reach desired value, pumping plant control unit 502 sends out signal, control
No. 2 general pumps 506 in 505 circuit of stacked switch processed start.Feed flow is based on No. 2 work of general pump 506 at this time, No. 1 frequency conversion
Pump 504 is used as fluid infusion, automatically adjusts liquid supply rate.Whithin a period of time, if system cannot still meet feed flow demand, pumping plant control
Unit 502 sends out signal again, and No. 3 general pumps 507 in 505 circuit of control switchgroup start.Feed flow is with No. 3 power frequencies at this time
Based on 507 work of pump, No. 2 general pumps 506 are secondary, and No. 1 variable frequency pump 504 always works in automatic adjustment liquid supply rate state, finally
Realize on-demand feed flow.
The failure pump work that No. 4 general pumps 508 are used to replace breaking down in this programme is not involved in flow or pressure association
It adjusts.In this case, if three pump while running a period of time and are still unsatisfactory for feed flow requirement, system-down alarm, the row of need
It is switched on again after looking into failure.When working face fluid volume is few, within a certain period of time, when feed flow pumping plant output pressure is stablized, successively
Stop No. 2, No. 3 general pumps, so that pumping plant output pressure is maintained setting pressure or so, No. 1 variable frequency pump is always in converting operation work
Make state.
(2) with machine pattern
In the case that working face needs to be in automatic operation mode with liquid and pumping plant control unit 502, pass through operation console
Startup order is sent to 503, No. 1 variable frequency pump 504 of frequency converter and started running by button, pumping plant control unit 502, meanwhile, pumping plant
502 real-time monitoring face holder job information of control unit.During holder is with machine, pumping plant control unit 502 is according to branch
Frame electrohydraulic control unit 501 acts the data such as warning information and corresponding holder oil cylinder cylinder diameter with machine parameter, holder, leads to
Cross on-demand feed flow algorithm, calculate will execute needed for action for flow quantity and liquid supply pressure, it is then practical with feed flow pumping plant
It is compared for flow quantity and pressure, if pressure and flow cannot meet feed flow demand, then pumping station controlling system is needed for
Flow starts the general pump (such as 1 or 2) of respective numbers, and feed flow pumping plant is based on general pump at this time, variable frequency pump work always
Make, in automatic adjustment state, finally to realize on-demand feed flow.If three pump while running a period of time and are still unsatisfactory for feed flow requirement,
Then system-down is alarmed, and is switched on again after need to investigating failure.When holder electrohydraulic control unit 501 calculates working face fluid volume
When the flow of less than 3 pump unlatchings, when within a certain period of time and feed flow pumping plant output pressure stablizes, stop according to liquid situation
General pump (1 or 2), makes pumping plant output pressure maintain setting value or so always with flow, and variable frequency pump is transported in frequency conversion always
Row working condition exists, and automatically adjusts liquid supply rate.After force piece is exited with machine pattern, pumping plant control unit 502 is cut automatically
It changes to and non-is controlled with machine pattern.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of fully-mechanized mining working intelligence feed liquid method, which is characterized in that include the following steps：
Information acquiring step：Obtain fully-mechanized mining working holder action message, the action message include holder estimate action and
Estimate actuation time；
Control on demand step：Action is estimated according to the holder and obtains feed flow demand, when combining current according to the feed flow demand
It carves and described estimate actuation time and obtain flow demand and/or pressure demand；It is described estimate actuation time before output with
The flow demand and/or the corresponding control signal of the pressure demand；
The control signal provides breast according to the flow demand and/or the pressure demand for controlling feed flow pumping plant for holder
Change liquid.
2. fully-mechanized mining working intelligence feed liquid method according to claim 1, which is characterized in that the control on demand step
In, the control signal includes the first enabling signal and the second enabling signal, wherein：
Action, which is estimated, according to the holder judges holder operating mode；If the holder operating mode is with machine pattern, export
First enabling signal is to start at least variable frequency pump in feed flow pumping plant；
The holder to prestore is obtained with machine parameter, obtains the feed flow demand with machine parameter according to described, and then obtain the flow
Demand and/or the pressure demand；
Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；
The difference and/or the practical liquid supply pressure for flow quantity and the flow demand and the pressure according to the reality
The difference of demand determines the general pump quantity for needing to open；
It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start feed flow pumping plant in
The general pump of respective numbers.
3. fully-mechanized mining working intelligence feed liquid method according to claim 2, which is characterized in that in the control on demand step
Further include following steps：
If all general pumps in feed flow pumping plant are open state, and the reality cannot expire for flow quantity in preset time
The foot flow demand and/or the practical liquid supply pressure cannot meet the pressure demand, then send out stopping signal to close
Feed flow pumping plant is simultaneously emitted by alarm signal.
4. fully-mechanized mining working intelligence feed liquid method according to claim 2, which is characterized in that the control on demand step
In, the control signal further includes third enabling signal comprising following steps：
If all general pumps in feed flow pumping plant are open state, and in the first preset time the reality for flow quantity not
The flow demand and/or the practical liquid supply pressure, which can be met, cannot meet the pressure demand, then sends out the third and open
Dynamic signal is to open at least stand-by pump in feed flow pumping plant；
If all general pumps and stand-by pump in feed flow pumping plant are open state, and the reality in the second preset time
Cannot meet the flow demand and/or the practical liquid supply pressure for flow quantity cannot meet the pressure demand, then sends out
Stopping signal is simultaneously emitted by alarm signal to close feed flow pumping plant.
5. according to claim 2-4 any one of them fully-mechanized mining working intelligence feed liquid methods, which is characterized in that the on-demand control
In step processed：
Determine difference and/or the practical liquid supply pressure and the pressure of the reality for flow quantity and the flow demand
After the difference of demand, the metered flow and volume of default general pump opening sequence, each general pump when being acted according to different support
Constant-pressure determines the general pump quantity for needing to open.
6. a kind of fully-mechanized mining working intelligence liquid-supplying system, which is characterized in that including holder electrohydraulic control unit, pumping plant control unit
With feed flow pumping plant, wherein：
The holder electrohydraulic control unit controls the holder action of fully-mechanized mining working, and holder action message is sent to described
Pumping plant control unit, the action message include that holder estimates action and estimates actuation time；
The pumping plant control unit obtains the holder action message, and estimating action according to the holder obtains feed flow demand, root
It in conjunction with current time and described estimate actuation time according to the feed flow demand and obtains flow demand and/or pressure demand；Institute
It states and exports control signal corresponding with the flow demand and/or the pressure demand before estimating actuation time；
The feed flow pumping plant, after receiving the control signal that the pumping plant control unit exports, according to the flow demand
And/or the pressure demand provides emulsion for the holder.
7. fully-mechanized mining working intelligence liquid-supplying system according to claim 6, which is characterized in that the feed flow pumping plant includes extremely
Lack a variable frequency pump and at least a general pump, system further include：
Flow sensor and/or pressure sensor are set to the feed flow pumping plant liquid outlet, for detecting feed flow pumping plant liquid outlet
It is practical for flow quantity and/or practical liquid supply pressure；
The pumping plant control unit estimates action according to the holder and judges holder operating mode；If the holder operating mode
With machine pattern, then to export the first enabling signal to start at least variable frequency pump in feed flow pumping plant；Obtain the holder to prestore
With machine parameter, the feed flow demand is obtained with machine parameter according to described, and then obtain the flow demand and/or the pressure to need
It asks；Acquire the practical for flow quantity and/or practical liquid supply pressure of feed flow pumping plant liquid outlet；According to the reality for flow quantity and institute
The difference of flow demand and/or the difference of the practical liquid supply pressure and the pressure demand are stated, determines the power frequency for needing to open
Pump quantity；It is described estimate actuation time before export the second enabling signal, with according to the general pump quantity start solution feed pump
The general pump of respective numbers in standing.
8. fully-mechanized mining working intelligence liquid-supplying system according to claim 7, which is characterized in that further include alarm assemblies：
The pumping plant control unit, all general pumps in feed flow pumping plant are open state, and described in preset time
It is practical to meet the flow demand for flow quantity and/or when the practical liquid supply pressure cannot meet the pressure demand
Stopping signal is sent out to close feed flow pumping plant, is simultaneously emitted by alarm signal；
The alarm assemblies receive alert after the alarm signal.
9. fully-mechanized mining working intelligence liquid-supplying system according to claim 7, which is characterized in that the feed flow pumping plant further includes
An at least stand-by pump：
The pumping plant control unit, all general pumps in feed flow pumping plant are open state, and described in preset time
It is practical to meet the flow demand for flow quantity and/or when the practical liquid supply pressure cannot meet the pressure demand,
The third enabling signal is then sent out to open at least stand-by pump in feed flow pumping plant；
If all general pumps and stand-by pump in feed flow pumping plant are open state, and the reality in the second preset time
Cannot meet the flow demand and/or the practical liquid supply pressure for flow quantity cannot meet the pressure demand, then sends out
Stopping signal is simultaneously emitted by alarm signal to close feed flow pumping plant；
The alarm assemblies receive alert after the alarm signal.
10. according to claim 7-9 any one of them fully-mechanized mining working intelligence liquid-supplying systems, it is characterised in that：
There is big flow, the characteristic of low-pressure, remaining general pump to have small stream for the feed flow pumping plant, part general pump therein
Amount, the characteristic of high pressure；
The pumping plant control unit, inside prestore the metered flow and rated pressure and different support of each general pump
The opening sequence of difference general pump when action；Determining difference and/or institute of the reality for flow quantity and the flow demand
After the difference for stating practical liquid supply pressure and the pressure demand, according to preset general pump opening sequence, the volume of each general pump
Constant flow and rated pressure determine the general pump quantity for needing to open.
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| CN110017161A (en) * | 2019-05-16 | 2019-07-16 | 中国神华能源股份有限公司 | Fully-mechanized mining working intelligence feed liquid method, storage medium, electronic equipment and system |
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Address after: 101399 No.27, Linhe Development Zone, Shunyi District, Beijing Patentee after: CCTEG Beijing Tianma Intelligent Control Technology Co.,Ltd. Patentee after: BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY Co.,Ltd. Address before: No.131, ground floor, Tiandi building, No.5, qingniangou East Road, Hepingli, Chaoyang District, Beijing 100013 Patentee before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. Patentee before: BEIJING CCRI-TIANMA AUTOMATION TECHNOLOGY Co.,Ltd. |