CN108457691A - Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique - Google Patents
Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique Download PDFInfo
- Publication number
- CN108457691A CN108457691A CN201710090511.0A CN201710090511A CN108457691A CN 108457691 A CN108457691 A CN 108457691A CN 201710090511 A CN201710090511 A CN 201710090511A CN 108457691 A CN108457691 A CN 108457691A
- Authority
- CN
- China
- Prior art keywords
- gas
- technique
- stifled
- quickly
- coal mine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005086 pumping Methods 0.000 title claims abstract description 15
- 239000004677 Nylon Substances 0.000 claims abstract description 29
- 229920001778 nylon Polymers 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000013011 mating Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 80
- 238000005065 mining Methods 0.000 description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000007789 sealing Methods 0.000 description 8
- 238000009825 accumulation Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000010790 dilution Methods 0.000 description 5
- 239000012895 dilution Substances 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 241000272525 Anas platyrhynchos Species 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000004945 emulsification Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique, including gas plugging device, gas exhaust device, hydraulic device and mating techniqueflow；Wherein plugging device is supported nylon rubber inclusion enclave along face length direction spread by nylon rubber inclusion enclave, chassis, skeleton body, flexible body and connecting component；While blocking goaf gas, gas exhaust device is discharged after concentrating safe to handle goaf gas with air return lane waste air by booster, the rigid devices such as air duct and gas detector；The invention discloses a kind of devices and technique can be under the premise of timely, efficient, automatic, unmanned, goaf gas and working face are kept apart, at the same time it by goaf rear gas exhaust and can be also diluted under safe concentration within effective time, under the target of the present apparatus and its technique based on safety and science, it can be achieved that the safe and efficient improvement of goaf gas.
Description
Technical field
The invention belongs to Safety of Coal Mine Production technical field more particularly to a kind of coal mine gob automatic moving type quickly with it is stifled with
Gas pumping device and technique.
Background technology
In recent years, the fast development and update of China's coal-mine production technique, equipment, especially fully mechanized mining technical equipment be energetically
Promotion and application significantly improve coal mining speed.With the quickening of coal mining speed, the Gas speed in the unit interval is apparent
Increase, the gas amount for being exposed to goaf is also multiplied.Meanwhile with the progress of coal mining, goaf area can constantly increase,
After being influenced by coal mine digging, hole crack is largely developed in goaf, and country rock and adjacent layers gas is caused to pour in and adopt
Dead zone.If goaf is poorly sealed with working face, a large amount of gas of accumulation are easy in the corner up and down of coal working face, goaf is deposited
Free gas Ileal neobladder ventilation pressure effect under constantly pour in stope, increase Ileal neobladder ventilation difficulty, together
When increase distinguished and admirable gas density, so that the dangerous of gas exceeding limit is increased.The increase of goaf exposed area, extraction concentration drop
It is low, keep gas utilization more difficult.
It is convenient for extraction to goaf gas block, it is one of current most common mode that enclosing wall is made at base.But
Assembling enclosing wall is constructed at goaf rear, and the construction time is relatively long, and materials needed are relatively more.Meanwhile with
The propulsion of coal working face, the enclosing wall assembled is immovable, and the gas density in goaf can be caused to be continuously increased, easily made
At corner methane accumulation above and below working face.The implementation for modernizing coal excavation apparatus makes more to expose the shortcomings that assembling wall closing.Cause
This, there is an urgent need to a kind of devices to coal mining rear coal breakage gas fast and efficiently block and in real time draw out methane both
Increase the concentration that draws out methane, and reduce gas to tunnel migration diffusing capacity, mitigates ventilation pressure.
Invention content
It is big for current coal mining rear coal breakage gas emission, using tradition assemble enclosing wall be easy gas exceeding limit, take,
The defects such as useless power, utilization rate be low, design it is a kind of be attached to hydraulic support rear end it is quick with stifled with gas pumping device.The device
It may be implemented, to the timely efficient closure of coal mining rear coal breakage gas and pump drainage, to reduce goaf before permanent block wall is formed
Influence of the gas to stope, to realizing that safe efficient administer in goaf has very big progradation.
To achieve the above object, the present invention adopts the following technical scheme that：Coal mine gob automatic moving type is quickly with stifled with pumping watt
This device includes mainly gas plugging device, gas exhaust device and attachment device.
The gas plugging system includes nylon rubber inclusion enclave 12, flexible body 8, skeleton body 9, truss bottom tray 17
And relevant connection device.
It is connected by draw bar 18 between the truss bottom tray 17 and hydraulic support 4 of the gas plugging device bottom.
By U-shaped steel skeleton 9 and can between nylon rubber inclusion enclave 12 in the plugging device and truss chassis 17
Telescopic spring bar 10 and small-sized hydraulic column 20 form.
The gas exhaust device includes gas administration system 36, axis stream extraction type local ventilator 37, safety switch
38, rigid air duct and gas monitor system instrument 40.
It is connected by double nuts 23 of opening between cross-bar body 22 and cross-bar body in the attachment device, cross bar 22 is wrapped up with rubber
It is fixedly connected using nylon hitch 13 between body body 12.
Using above-mentioned technical proposal, plugging device mainly will be attached to the nylon rubber on hydraulic support posterior support skeleton
Glue core entity, is connected by Sealed zipper and spread in goaf and prolongs the set of device system that cross-sectional direction is fixed successively
System, to ensure that sealing performance, nylon rubber core entity spread height are slightly larger than about 10-20 centimeters of coal working face mining height, rubber
Occluding body allows it to be fitted closely with top plate under rigidity, ensure that sealing effect；Since goaf top plate is yielding,
And top plate face degree of roughness is larger, therefore use the rubber not wrapped up to block at occluding body and top plate contact and rubbed and will not with reducing
Influence sealing performance.To reduce device load, therefore the thickness of rubber core entity, between 3cm to 8cm, thickness can root in application
It is adjusted according to actual conditions.The sectional view of wherein nylon rubber entity is as shown in Figure 5.In order to avoid rubber core is drawn by falling rocks
It is broken, therefore it is wrapped up by waterproof antistatic coating nylon cloth, prevents to slide between nylon cloth and rubber core with fixing device 34.
Chassis is arranged：Since goaf gas is prominent and accumulation situation is complicated, in order to which timely, effective, quick blocking is mined out
Area, as shown in Fig. 2, being connected by draw bar 18 between the mobile device truss bottom tray 17 and hydraulic support 4 of this system, chassis
Coal can be broken with coalcutter, drag conveyor is pushed away, move that frame process is automatic forward together to be carried out, without manual work, with reach quickly and
The purpose of Shi Gaoxiao.Frame load is moved to mitigate, and proof strength premise, chassis are as shown in Figure 5 using truss structure.Due to mined out
Pucking or protrusion easily occur under the action of mine pressure for area's bottom plate, install 19 spring levers between draw bar and hydraulic support additional
a；Truss bottom tray is contacted with gob floor by 21 rolling bearing wheels, to reduce friction, is reduced and is moved frame resistance, while in purlin
45 spring lever b are installed between frame body and bearing wheel additional to adapt to complicated bottom plate situation.
Skeleton body is arranged：Branch is connected by skeleton body between nylon rubber core entity in plugging system and truss chassis
Support, as shown in figure 3, skeleton body mainly includes 20 groups of U-shaped steel skeleton 9, extension type spring lever 10 and small-sized hydraulic column
At；20 bottom of small-sized hydraulic column is welded on truss bottom tray, and column top is connected with flexible springs bar 10, U-shaped reinforcing bar
Frame 9 can be deformed according to the situation of crushing with spring lever 10 and 20 telescopic adjustment of column；To avoid U-shaped steel skeleton 9 under the top plate
It is inserted into top plate when heavy, occurs killing, card holder phenomenon, while for skeleton uniform force, being held in its top position installation duck's foot shape
Load plate 15；Due to goaf top plate have it is a small amount of lose coal become during passage the smaller powder of powder, granule can enter it is vertical
At the combination gap of column and the spring body of rod, when pressing larger, easily cause to lose when instantaneous, therefore in hydraulic vertical prop and scalable bullet
Upright post cap 16 is installed between spring base additional, to stop that coal dust obstruction combines gap；It is connected by the larger cross bar 22 of elasticity between skeleton,
Body of rod length can according to carriage center away from etc. actual conditions it is selected, connected by double nuts 23 of opening between cross bar and cross bar；It blocks
Entity nylon rubber core is propped by nylon hitch 13 by cross bar 22；Since environment on coalface is special, nylon rubber core is for a long time
Abrasion is had, in order to ensure the leakproofness of gas closure, so needing to regularly replace, therefore passes through Sealed zipper between nylon rubber core
25 connections, are replaced with easy disassembly；Interface is easily worn, and is sutured by wire 24 between the exposed rubber bodies in top.
Skeleton body can select the U-shaped steel skeleton of the hydraulic vertical prop and different length model of different size height according to mining height difference；This
Device is suitable for the medium-thickness seam that mining height is not more than 3.5 meters；It is opened in the mode of 3.5-8.0 meters of high seam full-seam mining of mining height
When adopting, appropriate adjusting post diameter is also answered to adapt to apparent roof weighting；Mining height is more than 8 meters of thick sandstone, in selection point
When layer exploitation, since the working resistance of hydraulic support front pillar is generally higher than rear pillar, therefore the weight that should moderately increase truss chassis is come
Balance bracket resistance.
Bent bodies are arranged：With the progress of coal mining process, during pushing away drag conveyor, moving frame, holder and holder
Between will appear the situations of bent bodies 8 in Fig. 1.It is wrong away from therefore the closure between hydraulic support is real during frame in order to adapt to move
Body is made shown in the bent bodies 8 of Fig. 3, and vertical view is as shown in Figure 9；In view of rubber core entity may occur under flexuosity
It is not close with top plate contact, and the case where influence sealing effect, therefore using elasticity is larger, length surplus is larger at the top of bent bodies
Soft rubber material, to avoid move frame during serious mistake away from destroy sealing performance；Because being present apparatus area easy to wear herein, therefore need
Periodic inspection and maintenance are replaced in time if any breakage.
Exhaust device is mainly to carry out pump drainage to the goaf gas in the certain distance after closure.As shown in Figure 1, pump drainage
System is predominantly located in tailgate, i.e. working face scrapper conveyor tail position, at working face ended support lower section, master
Component part is wanted to have gas administration system 36, axis stream extraction type local ventilator 37, safety switch 38, rigid air duct 39, gas
Detector 40.Detection goaf gas concentration, the explosive range of gas density are generally 5%-15% to gas detector 40 in real time,
But other are inflammable and explosive with staying the coal column set that can aoxidize generation CO etc. in the state of the anoxic of goaf for the something lost coal in general goaf
Pernicious gas, while basis《Safety regulations in coal mine》Regulation：Face gas concentration is arranged gas and supervises no more than 1%
The warning concentration for surveying instrument is 1%；When gas monitor is alarmed, the safety switch 38 on rigid air duct is opened, and axis stream is taken out
Go out the startup of formula portable blower 37, due to using exhaust ventilation, therefore uses the air duct 39 for having rigid backbone, harmful gas such as gas of extraction
Body is drained into gas drawing station system 36 and is focused on.
Because the gas density extracted out from goaf is relatively low, recycling is of high cost, therefore wouldn't be recycled.Such as Fig. 3 institutes
To show, gas drawing station system includes liquid nitrogen container 36a, and inside is equipped with liquid nitrogen 36b, gas switch 36c, 36d, and dilution exports 36e,
Mixed diluting tank 36f and gas inlet 36g；This system is located in working face tailgate below advance support, work
Principle is：The gas come will be pumped out from goaf and passes through gas inlet 36g, and into mixed diluting tank body 36f, gas is opened
1 is closed to open, liquid nitrogen is sufficiently mixed into dilution tube body with gas after gasification, when gas density is down to 0.1% or less,
Gas switch 2 is opened, and mixing tank body, the processing of the inert gases extreme dilution such as nitrogen is discharged with nitrogen in the gas of super low concentration
Later, it when its concentration being made to be down to controlled range i.e. gas density no more than 0.1%, discharges it and flat with return air below working face
The waste air in lane is discharged.In order to ensure the highly effective and safe operation of gas drawing station system, have in the gas switch in gas drawing station system
Firedamp sensor, gas switch 1,2 is using the firedamp sensor of different sensitivity in this system, and 1 range ability of switch is in 0.1-
1.2% (gas density), 2 range ability of switch is between 0.05-0.1%, and switch is opened in range ability, range ability external-open
It closes and closes.
Hydraulic device is as shown in figure 3, the device mainly adjusts the landing of small-sized hydraulic column 20, when due to face moving
Need significantly to shrink the skeleton body of plugging device, single flexible springs bar 10 is difficult to meet this requirement, while single
Hydraulic vertical prop 20 is also difficult to meet flexible and changeable top plate variation, and under the premise of ensureing support strength, this body of rod top uses
Flexible springs bar, lower part use small-sized hydraulic column；When working condition, hydraulic selector 31 is opened, small-scale liquid press pump 33 starts,
Emulsion in liquid storage container is injected into column, column is raised up to pressure gauge 41 and regulation reading stopping feed flow occurring.Come when the period
Pressure, when crushing, pressure gauge warning reminding；To avoid damaging pressure sensor in spring lever since the amount of crushing is excessive
46, install hydraulic container 27 and voltage-controlled check valve 28 additional by small-sized hydraulic column；Hydraulic container 27 is intended to store a part of emulsification
Liquid, voltage-controlled check valve is as shown in fig. 6, its effect is：When the pressure of spring lever and the combination body of rod of hydraulic vertical prop is more than a certain pole
When limiting setting value, the emulsification hydraulic in hydraulic container, which is made every effort to overcome, forces voltage-controlled check valve inner spring 28b to shrink, and valve 28a is opened, with
Realize automatic control drain pressure release, avoid the occurrence of combination the body of rod occur bending or breaking phenomenon, when pressure is down to a certain value valve from
It is dynamic to shut, skeleton body normal work.
Connection system mainly completes tethered sliding, plugging system is connected with the body of rod of evacuation system and other auxiliary connect
It connects.This system is mainly to be moved forward with the passage process of hydraulic support under the connection function of the traction body of rod 18；Plugging system
Skeleton body such as cross bar 22 and cross bar between by it is double open nuts 23 connect, facilitate select different length cross bar to adapt to difference
The hydraulic support of centre-to-centre spacing；Cross bar is fixedly connected between blocking entity with rubber core using nylon hitch 13, and rubber during frame is moved
Glue core blocks entity and can suitably be slid on skeleton, and entity is blocked to avoid drawing crack.Other auxiliary connections such as Sealed zippers 25 and
Ironwire suture body 24 can be under the premise of not influencing sealing performance, easy disassembly and replacement.
Compared with prior art, coal mine gob automatic moving type disclosed by the invention is quickly with stifled with gas pumping device and technique
Major advantage has：
1, advantages of simple of the present invention can also seal goaf in addition to it can carry out efficiently quick blocking in time to the gas in goaf
Stifled gas carries out fast pumping, and main occluding body is located at working surface hydraulic support rear, is linked together with hydraulic support, because of liquid
Pressure holder is that fulcrum moves forward each other with the scrapper conveyor under working face electrichydraulic control, therefore occluding body is without manual operation, by it
Being installed on hydraulic support rear can be voluntarily with adopting with stifled, by goaf rear pernicious gas (mainly gas) at the first time
It is opened with working face barrier, effectively prevents and leak out and corner methane accumulation, ensure that the fresh distinguished and admirable lasting supply of working face, it can
Safe and efficient solution goaf gas administers problem, fundamentally reduces mine goaf ventilation difficulty.Nylon rubber core is real
Weight is light, and the rubber core entity between holder is by Sealed zipper and steel wire wire bonding, therefore occluding body can be in serious wear feelings
It is disassembled without large area under condition, realizes that part is replaced in due course, fast and safely.
2, the small-sized column spring body of rod on skeleton body can realize Forward during to adaptive after top plate small deformation
It should adjust, and not influence sealing effect, and column can be compressed by automatic leakage in top plate press caused large deformation suddenly, and then protect
Skeleton body will not be lost, so apparatus system is strong to top plate variation adaptive ability, each parts repeated multiple times can utilize, device
Long lifespan examines maintenance cycle short；Duck's foot carrier at the top of it except can effectively avoid skeleton body be inserted into top plate and occur killing,
Outside card holder phenomenon, can also make roof pressure stepless action in skeleton body, realized in the small range of top plate is sunk be compacted automatically it is close
Envelope.
3, the truss Steel Structure body resistance to deformation intensity on chassis is big and light-weight, and it is complicated severe to be suitable for coal mining traveling process
Bottom plate situation, chassis end sliding bearing wheel can be achieved the small road clearance of truss Steel Structure body, reduces pucking or protrusion is right
The influence on chassis mitigates hydraulic moving stand load.
4, present apparatus system takes up space minimum in underground, dramatically reduce personnel uncontrollable space activity duration；
Device selection is based on steel, rubber material, cost economic, and under the premise of realizing mobile in real time, plugging effect is apparent, to coal mine
Safe efficient production is of great significance.
5, the gas exhaust system in the present invention is safe and efficient, detects occluding body rear methane accumulation situation in real time, is adopting
When methane accumulation concentration in dead zone is beyond setting concentration standard, evacuation system automatic work, the high concentration gas pumped out is through nitrogen
After dilution processing, the tailgate discharge 10-15 meters away from working face distant places, waste air enters mine return air system and is evacuated to ground.
6, when the big overhaul of the equipments of working face, plugging system and gas exhaust system can separate operaton, realize continuous uninterrupted
It blocks, pump drainage protection, when face moving, each device dismounting is simple, and convenient, manual operation is torn open without big mechanical-assisted
It is easy to change temporary substitute sequence for dress, no complex parts；Work can not be changed in the range of mining height variation range ± 0.5 meter in plugging device
Industry is realized and is repeatedly utilized.
In conclusion present apparatus system and technique highlighted on coal mine gas governing problem it is quick, efficiently and and
When the characteristics of, entire technological process realizes that all automation, the mine that avoids largely were runed without manual operation
Casualties in journey reduces uncontrollable factor in mining process, meets science and peace that modern mine construction is pursued
Full theory.
Description of the drawings：
Fig. 1 is goaf automatic moving type gas quickly with the structural schematic diagram blocked up with picking device in working face；
Fig. 2 is the plugging device sectional view of gas plugging system in Fig. 1；
Fig. 3 is the structural schematic diagram of the gas dilution device of gas exhaust system in Fig. 1；
Fig. 4 is the plugging device front view of gas plugging system in Fig. 1；
Fig. 5 is nylon rubber entity sectional view in Fig. 4；
Fig. 6 is the sectional view of voltage-controlled check valve in Fig. 4；
Fig. 7 is the sectional view of voltage-controlled check valve D-D in Fig. 6；
Fig. 8 is the sectional view of voltage-controlled check valve F-F in Fig. 6；
Fig. 9 is the sectional view of the bent bodies of nylon rubber core entity in Fig. 4；
Figure 10 is the truss bottom tray vertical view of plugging system in Fig. 2.
Concrete operation step：
1) ground process first on ground pre-install occluding body, to the integrality of nylon rubber core, closure with
And the retractility of skeleton body is checked.
2) underground process, it is to be checked it is errorless after, which is transported to by railless free-wheeled vehicle or rail dumper
Underground carries out adjustment and installation in underground and hydraulic support.Specific installation steps：
A, after waiting for the mating three machines installation and debugging of working face, the draw bar 18 on truss bottom tray 17 is passed through into big nut twist-on
In 4 rear of hydraulic support, since bottom plate easily deforms in mining process, therefore nut is required to have certain activity surplus, then
The other end of the 19 spring lever a on draw bar top is fixed on hydraulic support middle and lower part, checks that extreme end of chassis bearing wheel is true at this time
Recognizing it can be with smooth sliding, and checks and confirm whether bearing wheel can deform by a small margin, to adapt to the protrusion and pucking of bottom plate；
B, installation cross-bar body 22 is connected with two-way nut 23 on U-shaped reinforcing bar frame body 9, then passes through nylon rubber core entity 35
Nylon hitch 13 is installed in cross-bar body 22, and aforementioned operation is repeated on every frame holder, waits for that all holder rears install entirely
Portion's occluding body and then the naked rubber entity in the top of the occluding body at every frame holder rear is sutured with wire 24, is closed successively
Pull on the Sealed zipper 25 between each section rubber entity；
Emulsion in liquid storage container 30 is passed through 29 note of pipeline road by the switch for c, each opening small-sized emulsion pump 33 successively
Enter into small-sized hydraulic column, column rises, and indicates to reach lifting height when hydralic pressure gauge 32 is abnormal, stops fluid injection, check envelope
Whether stifled body top rubber body is close to roof, and whether especially bent bodies top soft rubber body has enough surpluses to enhance
Sealing effect, if inspection is errorless, at this point, hydraulic support rear plugging system is formed, gas blocks in real time to be started.
D, it after installing plugging device, checks and installs gas exhaust device additional；Each parts of this device are with plugging device
Parts are migrated together to working face, this system is located at below ahead work face supporting, first in working face lower end tailgate
Gas administration system 36 is placed at interior 15-20 meters away from working face, rigid air duct is tied at gas inlet 36g, is worked in distance
All installations are moveable below position installation axle stream extraction type local ventilator 37 at 10 meters of face, wind turbine and gas administration device
Pulley, so as to the propulsion of working face, the Forward of exhaust device；Another termination rigidity air duct 39 of booster, air duct
Upper installation safety switch 38, air duct pass through end support rear occluding body, the other end are placed in goaf rear, tip position adds
Fill gas detector 40, install post debugging and check meter and wind turbine whether can with normal operation, it is to be checked it is errorless after,
This device installation procedure is fully completed.
3) detection goaf gas concentration, in due course pump drainage are formed up to permanent closure wall in real time.Later stage is with coal work
Face promotes, and underground construction environment gradually complicates, aggravation, and occluding body is easily worn, and influences to block and pump drainage effect, thus need and
Shi Genghuan nylon rubber core occluding bodies, maintenance crew can replacement cycle determines according to actual conditions, pay attention to working face head, tail position
It sets since the coal petrography scope of freedom is more, it is more serious compared to the abrasion of the occluding body of middle part working face, therefore should suitably shorten the replacement cycle.
Claims (7)
1. coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique, it is characterised in that：Including gas plugging device,
Gas exhaust device and attachment device.
2. coal mine gob automatic moving type according to claim 1 is quickly with stifled with gas pumping device and technique, feature exists
In：The gas plugging system includes nylon rubber inclusion enclave（12）, flexible body（8）, skeleton body（9）, truss bottom tray
（17）And relevant connection device.
3. coal mine gob automatic moving type according to claim 2 is quickly with stifled with gas pumping device and technique, feature exists
In：The truss bottom tray of the gas plugging device bottom（17）With hydraulic support（4）Between pass through draw bar（18）Connection.
4. coal mine gob automatic moving type according to claim 2 is quickly with stifled with gas pumping device and technique, feature exists
In：Nylon rubber inclusion enclave in the plugging device（12）With truss chassis（17）Between pass through U-shaped steel skeleton（9）With can
Telescopic spring bar（10）And small-sized hydraulic column（20）Composition.
5. coal mine gob automatic moving type according to claim 1 is quickly with stifled with gas pumping device and technique, feature exists
In：The gas exhaust device includes gas administration system（36）, axis stream extraction type local ventilator（37）, safety switch
（38）, rigid air duct and gas monitor system instrument（40）.
6. coal mine gob automatic moving type according to claim 1 is quickly with stifled with gas pumping device and technique, feature exists
In：Cross-bar body in the attachment device（22）Between cross-bar body nut is opened by double（23）Connection, cross bar（22）With rubber bag
Wrap up in body（12）Between use nylon hitch（13）It is fixedly connected.
7. coal mine gob automatic moving type according to claim 1 is quickly with stifled with gas pumping device and technique, feature exists
In：The technique includes the following steps：
1）Ground process faces nylon rubber inclusion enclave on ground（12）Integrality, the retractility of closure and skeleton body carries out
Check, it is to be checked it is errorless after, which is transported to underground by railless free-wheeled vehicle or rail dumper, in underground and liquid
Holder is pressed to carry out adjustment and installation；
2）Draw bar on truss bottom tray is fastened to hydraulic support rear by underground process by big nut, then will traction
The spring lever a on bar top（19）The other end be fixed on hydraulic support middle and lower part, then in U-shaped reinforcing bar frame body（9）It is upper to be opened with double
Nut (23) connection installation cross-bar body (22), then by nylon rubber inclusion enclave（12）Pass through nylon hitch（13）It is installed on cross bar
Body（22）On, and aforementioned operation is repeated on every frame holder, wait for that all holder rears install whole occluding bodies and then use steel
Silk thread（24）By the naked rubber entity suture in the top of the occluding body at every frame holder rear, it is closed pulls on each section rubber entity successively
Between Sealed zipper（25）, the immediately startup of emulsion pump, by liquid storage container（30）In emulsion pass through pipeline road
（29）It is injected into small-sized hydraulic column（20）In, column rises, and indicates to reach lifting height when hydralic pressure gauge exception, stops note
Liquid, at this point, hydraulic support rear plugging system is formed, gas blocks in real time to be started；
3）Installing gas exhaust device additional, each parts of this device are migrated with the parts of plugging device to working face,
Rigid air duct is connect at gas inlet（39）, in the position installation axle stream extraction type local ventilator at 10 meters of working face
（37）, wind turbine and gas administration device（36）Lower section is installed by removable movable pulley；Booster（39）Another termination rigidity wind
Cylinder（39）, safety switch is installed on air duct（38）, air duct passes through end support rear occluding body, after the other end is placed in goaf
Side, tip position install gas detector additional（40）, install whether post debugging and check meter and wind turbine can normally be transported
Row, it is to be checked it is errorless after, this device installation procedure is fully completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090511.0A CN108457691A (en) | 2017-02-20 | 2017-02-20 | Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090511.0A CN108457691A (en) | 2017-02-20 | 2017-02-20 | Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108457691A true CN108457691A (en) | 2018-08-28 |
Family
ID=63222075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710090511.0A Pending CN108457691A (en) | 2017-02-20 | 2017-02-20 | Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108457691A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322695A (en) * | 2018-12-05 | 2019-02-12 | 安徽建筑大学 | A kind of carrying out gas control on coal faces device |
| CN112012786A (en) * | 2020-09-11 | 2020-12-01 | 安徽理工大学 | Low-gas working face goaf totally-enclosed inert gas replacement method |
| CN112177673A (en) * | 2020-09-08 | 2021-01-05 | 天地（常州）自动化股份有限公司 | Gas monitoring arrangement system, and method and device for acquiring gas concentration distribution characteristics |
| CN112901245A (en) * | 2021-01-29 | 2021-06-04 | 中煤科工集团重庆研究院有限公司 | Roadway pressure equalizing system and method for preventing spontaneous combustion of goaf |
| CN113266412A (en) * | 2021-05-17 | 2021-08-17 | 陕西长武亭南煤业有限责任公司 | Coal mine gas control method |
-
2017
- 2017-02-20 CN CN201710090511.0A patent/CN108457691A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322695A (en) * | 2018-12-05 | 2019-02-12 | 安徽建筑大学 | A kind of carrying out gas control on coal faces device |
| CN109322695B (en) * | 2018-12-05 | 2024-02-06 | 淮南矿业(集团)有限责任公司 | Coal face gas treatment device |
| CN112177673A (en) * | 2020-09-08 | 2021-01-05 | 天地（常州）自动化股份有限公司 | Gas monitoring arrangement system, and method and device for acquiring gas concentration distribution characteristics |
| CN112177673B (en) * | 2020-09-08 | 2022-08-09 | 天地（常州）自动化股份有限公司 | Gas monitoring arrangement system, and method and device for acquiring gas concentration distribution characteristics |
| CN112012786A (en) * | 2020-09-11 | 2020-12-01 | 安徽理工大学 | Low-gas working face goaf totally-enclosed inert gas replacement method |
| CN112012786B (en) * | 2020-09-11 | 2022-04-26 | 安徽理工大学 | Low-gas working face goaf totally-enclosed inert gas replacement method |
| CN112901245A (en) * | 2021-01-29 | 2021-06-04 | 中煤科工集团重庆研究院有限公司 | Roadway pressure equalizing system and method for preventing spontaneous combustion of goaf |
| CN113266412A (en) * | 2021-05-17 | 2021-08-17 | 陕西长武亭南煤业有限责任公司 | Coal mine gas control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108457691A (en) | Coal mine gob automatic moving type is quickly with stifled with gas pumping device and technique | |
| CN104564050B (en) | Equipment for heading and anchoring parallel operation construction | |
| CN1932240B (en) | Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method | |
| CN101858213B (en) | Drilling, loading, transporting and anchoring integrated machine with dual platforms and four arms for coal roadway | |
| CN103061765B (en) | Z type horizontal stratification top coal caving coal mining method in half-edge thick coal seam | |
| CN108222938A (en) | A kind of large-inclination-angle coal bed goaf combination grouting filling recovery method | |
| CN103407737B (en) | Speedy drivage step type is from moving adhesive tape machine tail | |
| CN103670425B (en) | Formula lifting migration rack mechanical hand is carried in an a kind of pick integral method and development machine holder | |
| CN107100639B (en) | Shield transportation system for large-particle-size sand pebbles | |
| CN101761343B (en) | Rapid and continuous excavation constructing method for overlarge-diameter soil pressure balance shield | |
| CN103758515B (en) | Crawler type self-movable foot end | |
| CN104775825A (en) | Shield machine single well overall originating construction method | |
| CN211975051U (en) | Filling equipment for open-air end slope coal-pressing filling mining | |
| CN105755964A (en) | Low-level bridge erection machine for erecting high-speed railway bridge | |
| CN107313775A (en) | A kind of pair of cutting units coal road quick digging and anchoring machine | |
| CN104329117B (en) | Installation method of comprehensive mechanized filling, coal mining and open-off cutting equipment | |
| CA1237091A (en) | Displaceable inclined hoist | |
| CN110847956A (en) | Bag type filling machine for open-air end slope coal pressing filling mining | |
| CN201696041U (en) | Double-platform four-arm drilling, loading, conveying and anchoring integrated machine for coal roadways | |
| CN106837396A (en) | A kind of modular support suitable for lame advanced supporting | |
| CN203428405U (en) | Walking self-moving adhesive tape machine tail for speedy drivage | |
| CN103661072B (en) | Underground granular explosive loading service cart | |
| CN110026409A (en) | A kind of useful rock dry separation recovery system of iron content | |
| CN207212395U (en) | Coal mine gob automatic moving type is quickly with stifled with gas pumping device | |
| CN204941585U (en) | A kind of intelligent roadway moving cribbing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180828 |
|
| WD01 | Invention patent application deemed withdrawn after publication |