CN107902365A - Balanced caving control system based on rear portion scratch board conveyor coal stream load - Google Patents
Balanced caving control system based on rear portion scratch board conveyor coal stream load Download PDFInfo
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- CN107902365A CN107902365A CN201711251032.9A CN201711251032A CN107902365A CN 107902365 A CN107902365 A CN 107902365A CN 201711251032 A CN201711251032 A CN 201711251032A CN 107902365 A CN107902365 A CN 107902365A
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- board conveyor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
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Abstract
The present invention provides a kind of balanced caving control system based on rear portion scratch board conveyor coal stream load, existing on the basis of putting the hydraulic support of coal, in addition setting the hydraulic support for being used for mending coal.In recovery process, the hydraulic support for putting coal normally puts coal, and the hydraulic support for being used to mend coal then puts coal operation according to the size automatic opening of coal stream load on the scratch board conveyor of rear portion.When the coal transported on the scratch board conveyor of rear portion flows through small, then open the hydraulic support for being used to mend coal and carry out supplement and put coal；When the coal transported on the scratch board conveyor of rear portion flows through big, then the hydraulic support for being used for mending coal is closed.So that the coal stream load transported on the scratch board conveyor of rear portion remains at a uniform and stable scope, to realize that rear portion scratch board conveyor transporting coal ability maximizes, so as to improve fully mechanized coal face production efficiency.
Description
Technical field
The present invention relates to comprehensive extracting and caving face technical field of automatic control, more particularly to one kind to be based on rear portion scraper plate
Transport the balanced caving control system of machine-made egg-shaped or honey-comb coal briquets stream load.
Background technology
Comprehensive extracting and caving face automated control is the key technology of colliery mining in combined mining thick coal seam Sub-Level Caving automated control.
At present, the transport courses that use are usually during working face is mined：Hydraulic support puts coal, rear portion scratch board conveyor transport-turn
Carrier aircraft reprinting-belt conveyor conveying.In above-mentioned transport courses, coal amount root is put from hydraulic support to rear portion scratch board conveyor
Factually the situation of border working face is also different.In some cases, it is considerably less to put coal amount for hydraulic support, and rear portion scraper plate is transported at this time
Defeated machine freight volume is also considerably less, and in other cases, hydraulic support puts that coal amount is excessive, the freight volume mistake of rear portion scratch board conveyor
Greatly, it is possible to the situation of excess load occur.Therefore, existing working face coal mining transport control system, in particular for special thick coal
In application, coal recovery rate is low in layer.
So lacking a kind of control system for effectively being effectively collected and being transported to coal in the prior art, and then lead
Cause coal production efficiency low, seriously restrict the safe and efficient production of comprehensive extracting and caving face.
The content of the invention
The present invention is intended to provide a kind of balanced caving control system based on rear portion scratch board conveyor coal stream load, to realize
Rear portion scratch board conveyor transporting coal ability maximizes, so as to improve fully mechanized coal face production efficiency.
For this reason, the present invention provides a kind of balanced caving control system based on rear portion scratch board conveyor coal stream load, including
For putting the hydraulic support of coal, the hydraulic support for mending coal, rear portion scratch board conveyor, first support controller, second support
Controller, load detection unit, wherein：
The hydraulic support for being used to put coal and the quantity for being used to mend between the hydraulic support of coal are set by a certain percentage
Put；
The first support controller is arranged at the hydraulic support for being used to put coal, the control liquid for being used to put coal
Pressure stent performs working face and puts coal operation；
The rear portion scratch board conveyor, is arranged at the hydraulic support for being used to put coal and the hydraulic pressure branch for being used to mend coal
The lower section of frame tail boom, accepts the coal put down and coal is transferred out working face；
The load detection unit, is arranged on the rear portion scratch board conveyor, detects on the rear portion scratch board conveyor
Coal stream load；The first too low telecommunications of its output terminal output characterization coal stream load when the coal stream load is less than lower threshold
Number, when the coal stream load is higher than upper limit threshold, the second excessive electric signal of its output terminal output characterization coal stream load；
The second support controller, is arranged at the hydraulic support for being used to mend coal, its input terminal and the load
The output terminal communication connection of detection part；After it receives first electric signal, the control hydraulic support for being used to mend coal
Perform working face and put coal operation, after it receives second electric signal, the control hydraulic support for being used to mend coal stops work
Coal operation is put as face.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：It is described to be used for
Putting the hydraulic support of coal includes two groups, is respectively arranged at the diverse location of working face described in two groups for putting the hydraulic support of coal
Place, the hydraulic support for being used to put coal described in each group put coal operation by frame execution in order.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：It is described to be used for
Mending the hydraulic support of coal includes one group, and is used for the liquid for putting coal described in two groups for mending the hydraulic support of coal and being arranged at described in one group
Between pressure stent.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：The lower limit
Threshold value can transport the 85% of peak load for the rear portion scratch board conveyor；The upper limit threshold is the rear portion scratch board conveyor
The 95% of peak load can be transported.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：Further include：Report
Alert component, the output terminal of its input terminal and the load detection unit communicate to connect, and receive first electric signal or described
Alarm signal is sent after second electric signal.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：The alarm
Component includes speech player, and the speech player, which plays, characterizes that coal stream load on the rear portion scratch board conveyor is too low or mistake
High alarm sound.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：The alarm
Component includes the indicator light of two kinds of colors, and the indicator light of one of which color is flickered to characterize coal on the rear portion scratch board conveyor
Stream load is too low, and the indicator light flicker of another color is excessive to characterize coal stream load on the rear portion scratch board conveyor.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：The load
Detection part is heap coal sensor or mining contactless coal flow sensor.
Alternatively, in the above-mentioned balanced caving control system based on rear portion scratch board conveyor coal stream load：The load
Detection part is for the acquisition component for the output power of motor for gathering the rear portion scratch board conveyor.
Above-mentioned technical proposal provided by the invention, compared with prior art, at least has the advantages that：
Balanced caving control system provided by the invention based on rear portion scratch board conveyor coal stream load, is used for existing
On the basis of putting the hydraulic support of coal, in addition the hydraulic support for being used for mending coal is set.In recovery process, for putting the hydraulic pressure of coal
Stent normally puts coal, and the hydraulic support for being used to mend coal is then automatically turned on according to the size of coal stream load on the scratch board conveyor of rear portion
Put coal operation.When the coal transported on the scratch board conveyor of rear portion flows through small, then open the hydraulic support for being used to mend coal and supplemented
Put coal；When the coal transported on the scratch board conveyor of rear portion flows through big, then the hydraulic support for being used for mending coal is closed.So that rear portion is scraped
The coal stream load transported on plate transporter remains at a uniform and stable scope, to realize rear portion scratch board conveyor transporting coal
Ability maximizes, so as to improve fully mechanized coal face production efficiency.
Brief description of the drawings
Fig. 1 is the balanced caving control system based on rear portion scratch board conveyor coal stream load described in one embodiment of the invention
Structure diagram；
Fig. 2 is the balanced caving control system based on rear portion scratch board conveyor coal stream load described in one embodiment of the invention
Principle schematic；
Fig. 3 is the structure diagram of transshipment part described in another embodiment of the present invention.
Embodiment
Below in conjunction with attached drawing in the present embodiment, example description is carried out to the technical solution in the present invention.The present invention's
, it is necessary to explanation in description, term " " center ", " on ", " under ", "left", "right", " vertical ", " level ", " interior ", " outer " etc.
The orientation or position relationship of instruction are that the letter of the description present invention is for only for ease of based on orientation shown in the drawings or position relationship
Change description, rather than instruction or imply signified device or component must have specific orientation, with specific azimuth configuration and
Operation, therefore be not considered as limiting the invention.In addition, term " first ", " second ", " the 3rd " are only used for description mesh
, and it is not intended that instruction or hint relative importance.Wherein, term " first position " is different for two with " second place "
Position.
In the description of the present invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
The connection of two component internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Embodiment 1
The present embodiment provides a kind of balanced caving control system based on rear portion scratch board conveyor coal stream load, such as Fig. 1 and
Shown in Fig. 2, it includes being used for the hydraulic support 11, the hydraulic support 12 for mending coal, rear portion scratch board conveyor 4, first for putting coal
Bracket controller 21, second support controller 22, load detection unit 23, wherein：
The hydraulic support 11 for being used to put coal and the quantity for being used to mend between the hydraulic support 12 of coal are by certain ratio
Example is set；The quantitative proportion is selected according to the coal mining output of coal working face and the normal throughput of rear portion drag conveyor
Can.The first support controller 21 is arranged at the hydraulic support 11 for being used to put coal, the control liquid for being used to put coal
Pressure stent 11 performs working face and puts coal operation；The rear portion scratch board conveyor 4, is arranged at the hydraulic support 11 for being used to put coal
With the lower section of the tail boom 2 of the hydraulic support 12 for being used to mend coal, accept the coal put down and coal is transferred out into working face；It is described
Load detection unit 23, is arranged on the rear portion scratch board conveyor 4, and the coal stream detected on the rear portion scratch board conveyor 4 is born
Lotus；Its output terminal output characterization coal stream load too low the first electric signal when the coal stream load is less than lower threshold (such as it is low
Level signal), when the coal stream load is higher than upper limit threshold, the second excessive electric signal of its output terminal output characterization coal stream load
(such as high level signal)；The second support controller 22, is arranged at the hydraulic support 12 for being used to mend coal, it is inputted
End and the output terminal of the load detection unit 23 communicate to connect；After it receives first electric signal, it is used for described in control
The execution working face of hydraulic support 12 for mending coal puts coal operation, and after it receives second electric signal, control is described to be used to mend coal
12 face of being stopped of hydraulic support put coal operation.It is coal piling that the load detection unit 23, which is chosen as the load detection unit,
Sensor or mining contactless coal flow sensor, it is additionally preferred to ground, the load detection unit 23 be for gather it is described after
The acquisition component of the output power of motor of portion's scratch board conveyor 4, because the motor operation power of rear portion scratch board conveyor 4 has one
Fixed scope, must be the coal on rear portion scratch board conveyor 4 at this time if motor operation power shows that motor is overlond running
Stream load is excessive, must be that the coal stream load on rear portion scratch board conveyor 4 is too small at this time if motor operation power is too low,
Therefore according to the relation between motor operation power and the rated power of motor coal stream load can be judged whether in preferable model
In enclosing.The lower threshold and the upper limit threshold can be set according to user demand, it is therefore an objective to so that rear portion scratch board conveyor 4
Transport capacity reach optimal, preferably described lower threshold can transport the 85% of peak load for the rear portion scratch board conveyor；Institute
The 95% of peak load can be transported for the rear portion scratch board conveyor by stating upper limit threshold.
In above scheme, hydraulic support 11 and the hydraulic support 12 for mending coal for putting coal put coal operation in execution
When top coal structure destroyed by support repeatedly to top plate, control top-coal control；Plate 3 be arranged at the tail boom 2 of hydraulic support with
Between the rear portion scratch board conveyor 4,2 reciprocally swinging of tail boom is engaged (most left in figure with stretching repeatedly for the plate 3
The plate 3 of side is in stretching state, remaining plate is in the state shunk), the coarse coal in the top coal of inbreak is crushed；
The elevating conveyor 5, is arranged at 4 tail of rear portion scratch board conveyor, it sets up separately close to drive end unit puts crusher 6；It is described broken
Machine 6 performs fragmentation procedure to the coarse coal in the elevating conveyor 5；Belt conveyer 7 is arranged at the outlet of the elevating conveyor 5, holds
Connect the coal that the elevating conveyor 5 exports and transport.
Such scheme provided in this embodiment, another set is used to mend on the basis of the existing hydraulic support for putting coal
The hydraulic support of coal.In recovery process, the hydraulic support for putting coal normally puts coal, and is used to mending the hydraulic support of coal then root
Automatically turned on according to the size of coal stream load on the scratch board conveyor of rear portion and put coal operation.When the coal stream transported on the scratch board conveyor of rear portion
When too small, then open the hydraulic support for being used to mend coal and carry out supplement and put coal；When the coal transported on the scratch board conveyor of rear portion flows through greatly
When, then close the hydraulic support for being used for mending coal.So that the coal stream load transported on the scratch board conveyor of rear portion remains at one
A uniform and stable scope, to realize that rear portion scratch board conveyor transporting coal ability maximizes, so as to improve fully mechanized coal face production
Efficiency.
In above scheme, the hydraulic support 11 for being used to put coal and the number for being used to mend between the hydraulic support 12 of coal
Amount can be with sets itself, and the hydraulic support for being used to put coal for two groups as shown in Figure 1 corresponds to one group of hydraulic support for being used to mend coal, no
The quantity for the hydraulic support for being used to put coal with group can be the same or different, can also for mending the quantity of hydraulic support of coal
It is identical or different with the hydraulic support quantity for putting coal.As preferable scheme, by the hydraulic support 11 for being used to put coal
Two groups are divided into, the hydraulic support 11 for being used to put coal described in two groups is respectively arranged at the diverse location of working face, each group of institute
State the hydraulic support 11 for putting coal and put coal operation by frame execution in order.The hydraulic support 12 for being used to mend coal includes one
Group, and the hydraulic support 12 for being used to mending coal described in one group is arranged at described in two groups and is used to put between the hydraulic support 11 of coal.Wherein,
The hydraulic support 11 for being used to put coal puts coal at working face two, and the hydraulic support for putting coal operation is performed in the same time and is only had
One frame, for one group is used to putting the hydraulic support of coal, puts coal, when being put into the group most since the starting frame of the group by frame
During latter frame, return again to put coal by frame, it is a round to have performed one bout, and the whole mistake for putting coal is completed using more wheels
Journey, referred to as puts coal method using order Zigzag type wheel more and carries out putting coal.Portion's scraper plate transports in the rear for the coal inbreak of let-down
On machine 4, when the coal stream load of rear portion scratch board conveyor 4 is less than 85%, the liquid for being used to mend coal at other the one of working face
Pressure stent 12 just proceeds by supplement and puts coal.When use is multiple is used to mend the hydraulic support 12 of coal, load detection unit 23
Output terminal can be directly with the hydraulic support for mending coal of wherein initial position controller be communicatively coupled, by first
Electric signal or the second electric signal are transmitted directly to the bracket controller of initial position, because the control in each group of hydraulic support
Device can also realize the data communication of point-to-point by the communications cable each other, so the hydraulic pressure branch for being used to mend coal of initial position
After frame receives the first electric signal or the second electric signal, it can be performed according to operation principle identical with the hydraulic support for putting coal
Put coal operation or stop putting coal operation.
Such scheme can significantly improve the coal freight volume of rear portion scratch board conveyor 4, when scratch board conveyor 4 coal stream in rear portion is born
When lotus is more than 95%, rear portion scratch board conveyor 4 overloads in order to prevent, stops being used for the benefit coal behaviour for mending the hydraulic support 12 of coal at this
Make, so that the coal stream load of rear portion scratch board conveyor 4 is maintained between 85%-95%, realizes and transported based on rear portion scraper plate
Coal control is put in the equilibrium of machine-made egg-shaped or honey-comb coal briquets stream.
In addition, on the basis of such scheme, the balanced caving control system based on rear portion scratch board conveyor coal stream load
It can also include alarm assemblies, the output terminal of its input terminal and the load detection unit communicates to connect, and receives described first
Alarm signal is sent after electric signal or second electric signal.Wherein described alarm assemblies can include speech player, described
Speech player plays the alarm sound for characterizing that coal stream load is too low or excessive on the rear portion scratch board conveyor.Or
The alarm assemblies include the indicator light of two kinds of colors, and the indicator light of one of which color is flickered to be transported with characterizing the rear portion scraper plate
Coal stream load is too low on defeated machine, and the indicator light of another color is flickered to characterize coal stream load mistake on the rear portion scratch board conveyor
It is high.Flickered for example with red and represent that coal stream load is too low, represent that coal stream load is excessive using blinking yellow illumination, at coal stream load
When normal condition, two instructions etc. can be made to show green.By alarm assemblies field personnel can be made timely
Solve the status information of coal stream load.
Obviously, can ensure through the above scheme：Coal stream load on the scratch board conveyor of working face rear portion is balanced, after realization
Portion scratch board conveyor transports coal amount and maximizes, and prevents rear portion scratch board conveyor overlond running, it is ensured that drag conveyor it is reliable
Property；Top-coal caving face rear portion is improved to greatest extent at the same time to put coal production capacity and put coal efficiency.
Embodiment 2
Balanced caving control system provided in this embodiment based on rear portion scratch board conveyor coal stream load, in such scheme
On the basis of, as shown in figure 3, further including precrushing component 8.With reference to Fig. 1, in the transportational process of coal, the tail boom 2 is toward physical pendulum
It is dynamic to be engaged that (plate 3 of the leftmost side be in stretching state in figure, remaining plate is in contraction with stretching repeatedly for the plate 3
State), the coarse coal in the top coal of inbreak is crushed；The precrushing component 8 is to from the rear portion scratch board conveyor 4
The coarse coal for being transmitted to the elevating conveyor 5 performs fragmentation procedure；The crusher 6 performs the coarse coal in the elevating conveyor 5
Fragmentation procedure.Whole system performs tertiary crushing operation to the top coal of inbreak, and the storage of coarse coal is preferably minimized, so as to protect
Impact damaged degree of the coal cinder to belt feeder that card falls on belt conveyer is preferably minimized.
Wherein, precrushing component 8 can select appropriate mechanical structure to realize.For example, the precrushing component 8 is
Metallic plate with specific thicknesses.In the thickness of selected metallic plate, its stiff problem is mainly considered, because coal stream is scraped from rear portion
With certain gravity and speed when trigger 4 transmits, intercepted when reaching at that time at the head of elevating conveyor 5 by metallic plate, gold
Belonging to plate, therefore rigidity is strong with certain thickness, will be crushed when coarse coal is struck on metallic plate.Metallic plate can select steel
The higher material of the hardness such as plate is prepared.
In addition, metallic plate described above can be fixed at 5 head of elevating conveyor, or the metallic plate is slideably
It is arranged at 5 head of elevating conveyor, it can be slided along perpendicular to the direction that coal transmits.If simple stationary structure,
Then the entrance of elevating conveyor 5 is blocked a part by metallic plate, and elevating conveyor 5 is then directly entered when the lumpiness of coal is small, if the block of coal
When spending big, then it can be intercepted by metallic plate, coarse coal is broken under the action of gravity and speed.And if metallic plate can along hang down
If directly being moved with coal stream direction, then it can be set and moved with certain frequency, flowed into equivalent to the coal to process
Row cutting operation, when running into coarse coal, can necessarily be crushed.The mode for implementing metallic plate execution cutting operation can
Think：Raised line is set in metallic plate two sides, guide rail is set on the head of elevating conveyor 5, is provided with guide rail and is driven by motor
Moving it and perform the conveyer belt of forward or reverse operation, raised line is fixed on a moving belt, when conveyer belt forward or reverse, then raised line
Follow conveyer belt positive mobile or move backward, then perform cutting operation.Wherein it is possible to it is to close to coal when providing to rotate forward
The direction movement of stream, is the direction movement away from coal stream when rotating backward.And in order to further improve crushing effect, it can also make
On metallic plate broached-tooth design is formed on one side opposite with coal stream.
As another implementation, the precrushing component 8 can also be metal hammer body, and the metal hammer body includes hammer
Head and hammer handle, the hammer handle are rotationally arranged on the head of the elevating conveyor, and multiple spines are provided with the tup.Into
One step, driving motor is further included, is arranged at the head side of the elevating conveyor 5；The hammer handle is through gear component and institute
The output axis connection of driving motor is stated, the hammer handle is rotated under the driving of the driving motor with specific frequency.Pass through driving
Motor driving hammer handle rotates, and then electronic tup rotates, and can treat entering the coarse coal of elevating conveyor 5 and crushed.Driving
Mode is it can be selected that for example make hammer handle be rotated along whole circumference, or swing back and forth with set angle.
Further, such scheme can also be improved to, it includes sensor, be arranged on the head of the elevating conveyor 5,
The coal cinder volume treated into the elevating conveyor 5 is detected, and exports the electric signal for characterizing the coal cinder volume；Comparator, it first
Input terminal receives the electric signal of sensor output, its second input terminal receives reference electrical signal, the reference electrical signal with
The upper limit value of coal cinder volume is corresponding；When the electric signal is more than the reference electrical signal, its output terminal output control electric signal；
Motor is driven, is arranged at the head side of the elevating conveyor 5, the hammer handle drives the defeated of motor through gear component with described
Go out axis connection；The controlled terminal of the driving motor is connected with the output terminal of the comparator, its controlled terminal receives the control
After electric signal, its output shaft drives the hammer handle to stop after rotating preset times.That is, for entering elevating conveyor 5
Coal cinder volume is detected, and when finding the coal cinder of bulk volume, is rotated starting driving motor driving hammer body to bulk
Coal is crushed, and preset times can empirically be worth and be chosen, and general coarse coal is completed to be broken for so as to realizing
Standard, such as general coarse coal, completion could be crushed by needing to tap 5 times using hammer body, then preset times need at least
Meet that hammer body taps coarse coal 5 times.When not finding coarse coal, driving motor wouldn't can operate, thus, it is possible to more accurately
Fragmentation procedure is carried out to coarse coal, also avoids the energy dissipation that unbroken coal cinder is brought of motor rotation process, additionally it is possible to avoid
Hammer body continuous running brings the threat of personal safety to the staff of surrounding.Wherein it is possible to pass through ray mode, image recognition
The volume of coal cinder is detected etc. mode, there has been related record in this part in the prior art, and it is not the application
Where inventive point, therefore no longer it is discussed in detail.
Further, such scheme can also be improved to, it includes camera, be arranged on the head of the elevating conveyor 5,
Obtain the vision signal for the coal stream for entering the elevating conveyor；Picture recognition module, receives and parses through the institute that the camera is sent
Vision signal is stated, when having objective body not moved in preset time in coal stream, then broken control signal is exported, when in coal stream
After objective body disappears, then output stops broken control signal；Motor is driven, is arranged at the head side of the elevating conveyor, it is described
Output axis connection of the hammer handle through gear component with the driving motor；The controlled terminal of the driving motor is known with described image
The output terminal connection of other module, after its controlled terminal receives the broken control signal, its output shaft drives the hammer handle to rotate；
After its controlled terminal receives the broken control signal of the stopping, its output shaft stops operating.This scheme, it is real-time by camera
Having monitored whether that coarse coal blocks can not be moved forward to whether control hammer body rotates, after hammer body crushes objective body, mesh
Standard type can automatically control hammer body after disappearing and shut down.
Preferably, as shown in figure 3, can also include preventing dropping component 9 in above control system, it is arranged at the elevating conveyor
The overlapping part of 5 tail and the belt conveyer 7, the transmission channel of coal stream is limited in inside the overlapping part.By
It is big in top coal thickness, make transportation system's load increase, coal is big in the coal amount of elevating conveyor 5 to belt conveyor 7, often in skin
Band 7 head of transporter causes coal piling to lose the problem of dissipating, for this reason, in 7 overlapping part of elevating conveyor 5 and belt conveyor, prevents dropping dress
Putting makes coal not dropped during equipment conveying relay.It is preferred that described prevent that it is funnel-shaped structure to drop component 9, its opening is larger
The tail of side towards the elevating conveyor 5 is set.
In above scheme, the equipment of following model can be used to realize, wherein for putting the hydraulic support of coal and for mending
The stent frame type of the hydraulic support of coal is ZF23600, working resistance 23600KN, and rear portion scratch board conveyor uses model
SGZ1200/2 × 1200, conveying capacity 4000t/h.What the tail boom and plate of hydraulic support constituted hydraulic support puts coal machine
Structure, when putting coal, first withdraws stent and puts coal plate, and operates tail boom jack, tail boom is swung to appropriate location, to make top coal
Flow directly into rearside conveyor；When putting coal, can repeatedly swing tail beam crushes coarse coal repeatedly, it is net easy to put；When putting coal in case of
Coarse coal, is crushed using tail boom, plate；Stop putting coal when seeing directly top spoil, and stretch out plate and seal coal discharge outlet, tail boom
Put, coal work is put in completion.When tail boom is withdrawn top coal let-down when plate is withdrawn, receipts, reality are stretched by the swing of tail boom, plate
Existing hydraulic support puts coal loop control, and coal is put using more wheel order Zigzag types, that is, put coal process by tail boom, plate it is flexible
Coal control is put in control realization, is often located floating group of the coal-caving supporter for a fixed qty, is put coal process since the first frame of the group,
Carry out by frame order putting coal, what which put coal at the same time there can only be a frame, after putting coal and reaching last of the group, that is, complete
One wheel order puts coal, at this time, returns again to carry out putting coal by frame order to first frame direction, the spoil until seeing inbreak, just stops
Coal is only put, therefore the also referred to as more wheel Zigzag type orders of the caving mode put coal.
Put coal working face and coal is put using 2-3 wheels order, is i.e. 2 main forces put coal work and are respectively arranged in working face top and the bottom, therebetween
A benefit coal work is stayed, puts coal with machine order, first run order is put coal control and shaken 3-4 times in 1-1.5 times of i.e. tail boom of mining height, the second wheel
Turn back and put coal and put about 1 mining height of coal again, last wheel puts coal and sees that cash is shut off coal discharge outlet.
Working face has two groups of more wheel Zigzag types orders of hydraulic support execution for being used to put coal to put coal, by controlling top coal caving time
Parameter, controls this to put coal amount at two no more than 85%, and putting the coal stream that coal amount falls in rear portion scratch board conveyor when two pack support bears
When lotus is less than 85%, coal is put in the supplement for opening up the hydraulic support progress top coal that another set is used to mend coal, makes to fall to scrape at rear portion
The coal stream load of plate transporter reaches more than 85%, and no more than 95%, when it is more than 95%, rear portion scraper plate in order to prevent
Nonoverload in transporter operational process, to ensure the reliability of drag conveyor, while makes the coal flow of rear portion scratch board conveyor
Reach maximization, it is achieved thereby that the maximization of Sub-Level Caving production capacity.
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
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
To modify to the technical solution described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical solution spirit and
Scope.
Claims (9)
1. a kind of balanced caving control system based on rear portion scratch board conveyor coal stream load, it is characterised in that including for putting
The hydraulic support of coal, the hydraulic support for mending coal, rear portion scratch board conveyor, first support controller, second support controller,
Load detection unit, wherein：
The hydraulic support for being used to put coal and the quantity for being used to mend between the hydraulic support of coal are set by a certain percentage；
The first support controller is arranged at the hydraulic support for being used to put coal, the control hydraulic pressure branch for being used to put coal
Frame performs working face and puts coal operation；
The rear portion scratch board conveyor, is arranged at the hydraulic support for being used to put coal and the hydraulic support for being used to mend coal
The lower section of tail boom, accepts the coal put down and coal is transferred out working face；
The load detection unit, is arranged on the rear portion scratch board conveyor, detects the coal on the rear portion scratch board conveyor
Stream load；The first too low electric signal of its output terminal output characterization coal stream load, institute when the coal stream load is less than lower threshold
When stating coal stream load and being higher than upper limit threshold, the second excessive electric signal of its output terminal output characterization coal stream load；
The second support controller is arranged at the hydraulic support for being used to mend coal, its input terminal and the cutting load testing portion
The output terminal communication connection of part；After it receives first electric signal, the control hydraulic support for being used to mend coal performs work
Coal operation is put as face, after it receives second electric signal, the control hydraulic support face of being stopped for being used to mend coal is put
Coal operates.
2. the balanced caving control system according to claim 1 based on rear portion scratch board conveyor coal stream load, its feature
It is：
The hydraulic support for being used to put coal includes two groups, and the hydraulic support for being used to put coal described in two groups is respectively arranged at working face
Diverse location at, be used to putting the hydraulic support of coal described in each group to perform by frame in order and put coal operation.
3. the balanced caving control system according to claim 2 based on rear portion scratch board conveyor coal stream load, its feature
It is：
The hydraulic support for being used to mend coal includes one group, and the hydraulic support for being used to mend coal described in one group is arranged at described in two groups
For putting between the hydraulic support of coal.
4. the balanced caving control system according to claim 3 based on rear portion scratch board conveyor coal stream load, its feature
It is：
The lower threshold can transport the 85% of peak load for the rear portion scratch board conveyor；After the upper limit threshold is described
Portion's scratch board conveyor can transport the 95% of peak load.
5. system is controlled according to balanced caving of the claim 1-4 any one of them based on rear portion scratch board conveyor coal stream load
System, it is characterised in that further include：
Alarm assemblies, the output terminal of its input terminal and the load detection unit communicate to connect, and receive first electric signal
Or send alarm signal after second electric signal.
6. the balanced caving control system according to claim 5 based on rear portion scratch board conveyor coal stream load, its feature
It is：
The alarm assemblies include speech player, and the speech player, which plays, characterizes coal stream on the rear portion scratch board conveyor
The too low or excessive alarm sound of load.
7. the balanced caving control system according to claim 5 based on rear portion scratch board conveyor coal stream load, its feature
It is：
The alarm assemblies include the indicator light of two kinds of colors, and the indicator light flicker of one of which color characterizes the rear portion scraper plate
Coal stream load is too low on transporter, and the indicator light flicker of another color characterizes coal stream load mistake on the rear portion scratch board conveyor
It is high.
8. system is controlled according to balanced caving of the claim 1-4 any one of them based on rear portion scratch board conveyor coal stream load
System, it is characterised in that：
The load detection unit is heap coal sensor or mining contactless coal flow sensor.
9. system is controlled according to balanced caving of the claim 1-4 any one of them based on rear portion scratch board conveyor coal stream load
System, it is characterised in that：
The load detection unit is for the acquisition component for the output power of motor for gathering the rear portion scratch board conveyor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251032.9A CN107902365A (en) | 2017-12-01 | 2017-12-01 | Balanced caving control system based on rear portion scratch board conveyor coal stream load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251032.9A CN107902365A (en) | 2017-12-01 | 2017-12-01 | Balanced caving control system based on rear portion scratch board conveyor coal stream load |
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| Publication Number | Publication Date |
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| CN107902365A true CN107902365A (en) | 2018-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711251032.9A Pending CN107902365A (en) | 2017-12-01 | 2017-12-01 | Balanced caving control system based on rear portion scratch board conveyor coal stream load |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422589A (en) * | 2019-08-02 | 2019-11-08 | 精英数智科技股份有限公司 | A kind of coal mine elevating conveyor coal piling safety alarming method, device, equipment, medium |
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| CN102493827A (en) * | 2011-11-30 | 2012-06-13 | 北京天地玛珂电液控制系统有限公司 | Automatic coal caving system on top coal caving working face and coal caving method thereof |
| CN103256064A (en) * | 2013-05-14 | 2013-08-21 | 天地科技股份有限公司 | Top coal caving hydraulic support intelligent control coal caving method |
| CN207497564U (en) * | 2017-12-01 | 2018-06-15 | 鄂尔多斯市华兴能源有限责任公司 | Balanced caving control system based on rear portion scratch board conveyor coal stream load |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102493827A (en) * | 2011-11-30 | 2012-06-13 | 北京天地玛珂电液控制系统有限公司 | Automatic coal caving system on top coal caving working face and coal caving method thereof |
| CN103256064A (en) * | 2013-05-14 | 2013-08-21 | 天地科技股份有限公司 | Top coal caving hydraulic support intelligent control coal caving method |
| CN207497564U (en) * | 2017-12-01 | 2018-06-15 | 鄂尔多斯市华兴能源有限责任公司 | Balanced caving control system based on rear portion scratch board conveyor coal stream load |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110422589A (en) * | 2019-08-02 | 2019-11-08 | 精英数智科技股份有限公司 | A kind of coal mine elevating conveyor coal piling safety alarming method, device, equipment, medium |
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Address after: 010321 Dalu Town, Zhungeer banner, Ordos City, Inner Mongolia Autonomous Region Applicant after: ORDOS CITY HUAXING ENERGY CO.,LTD. Applicant after: HUAI MINE WEST MINE INVESTMENT MANAGEMENT CO.,LTD. Applicant after: Beijing Tianma Zhikong Technology Co.,Ltd. Applicant after: CHINA COAL INDUSTRY ASSOCIATION PRODUCTIVITY PROMOTION CENTER Address before: 010321 Dalu Town, Zhungeer banner, Ordos City, Inner Mongolia Autonomous Region Applicant before: ORDOS CITY HUAXING ENERGY CO.,LTD. Applicant before: HUAI MINE WEST MINE INVESTMENT MANAGEMENT CO.,LTD. Applicant before: BEIJING TIANDI-MARCO ELECTRO-HYDRAULIC CONTROL SYSTEM Co.,Ltd. Applicant before: CHINA COAL INDUSTRY ASSOCIATION PRODUCTIVITY PROMOTION CENTER |
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