CN110095361A - The device of coal body solid coefficient under a kind of measurement adsorbed state - Google Patents
The device of coal body solid coefficient under a kind of measurement adsorbed state Download PDFInfo
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- CN110095361A CN110095361A CN201910536289.1A CN201910536289A CN110095361A CN 110095361 A CN110095361 A CN 110095361A CN 201910536289 A CN201910536289 A CN 201910536289A CN 110095361 A CN110095361 A CN 110095361A
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- 239000003245 coal Substances 0.000 title claims abstract description 70
- 239000007787 solid Substances 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 title claims abstract description 21
- 238000010521 absorption reaction Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 21
- 238000001179 sorption measurement Methods 0.000 claims abstract description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000001066 destructive effect Effects 0.000 claims abstract description 3
- 230000007423 decrease Effects 0.000 claims description 32
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 16
- 239000002817 coal dust Substances 0.000 claims description 15
- 230000000630 rising effect Effects 0.000 claims description 15
- 239000004677 Nylon Substances 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 229920001778 nylon Polymers 0.000 claims description 10
- 238000003032 molecular docking Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims 3
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000012216 screening Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 91
- 239000010959 steel Substances 0.000 description 91
- 230000000694 effects Effects 0.000 description 18
- 238000010586 diagram Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of devices of coal body solid coefficient under measurement adsorbed state, comprising: high pressure gas cylinder, pressure reducing valve, ventilating control valve, vacuum control valve, vacuum pump, vacuum meter, high-pressure air duct and absorption and hammering subsystem.It is adsorbed first by vacuum pump, vacuum meter and vacuum control valve goalkeeper and is evacuated to 10Pa or less with hammering subsystem；It is filled with the methane gas of predetermined pressure with hammering subsystem to absorption secondly by high pressure gas cylinder, pressure reducing valve and ventilating control valve；After so that coal sample to be measured is reached adsorption equilibrium in absorption and hammering subsystem, completion measurement coal body solid coefficient is required to hammer destructive process；It is final to collect coal sample, screening and measurement volume, the solid coefficient of the coal body under a certain gas pressure in adsorption equilibrium state is calculated.
Description
Technical field
The present invention relates to a kind of devices of the coal body solid coefficient under measurement adsorbed state, are suitable for mine coal and gas
The measurement of coal body solid coefficient in outburst hazard prediction.
Background technique
Coal body solid coefficient is the important indicator of mine coal and gas outburst risk prediction, and that reflects production zones
Occur coal and gas prominent accident a possibility that, accurately measure the solid coefficient of production zone coal body, to coal mine prediction and
Prevention and treatment coal and gas prominent is of great significance.
Existing device for determining obdurability coefficients of coal does not have sealing performance, is only capable of measuring the heavily fortified point of the coal body of desorption after damp
Solidity coefficient does not have the energy for the solid coefficient for measuring the coal body under primitive coalbed gas pressure in adsorption equilibrium state
Power.Some researches show that gas adsorption effect has larger impact to the robustness of coal body, only measures the heavily fortified point of the coal body after desorption of mash gas
Solidity coefficient cannot reflect its true firmness degree, and will cause the larger mistake of coal and gas prominent danger forecasting result
Difference.
Summary of the invention
One, goal of the invention
In order to measure the solid coefficient of the coal body under primitive coalbed gas pressure in adsorption equilibrium state, avoid because neglecting
The slightly error of coal and gas prominent danger forecasting result caused by influence of the gas adsorption effect to coal body robustness, invention
The device.
Two, technical solution
(1) device composition and connection type
The device is by high pressure gas cylinder, pressure reducing valve, ventilating control valve, vacuum control valve, vacuum pump, vacuum meter, high pressure
Gas-guide tube and absorption and hammering subsystem composition.
It is described absorption with hammering subsystem by power supply cavity, pulley cavity, track cavity, pedestal cavity, weight limit plate,
Rise power supply, decline power supply, conducting wire, rises magnetic switch, decline magnetic switch, control magnet, direct current generator, electric machine spacing plate, passes
Lever, pulley, nylon rope, power magnet and weight composition.
The weight limit plate is by annular bottom plate, cylindricality steel cylinder 1, cylindricality steel cylinder 2, truncated cone-shaped steel cylinder and circular top board group
At.
The weight is cylindrical cast iron, diameter 66mm, height 90mm, quality 2.4kg.
The power supply cavity is cavity open at one end, is welded with ring flange, the processing of ring flange raised head face in opening
There is circular groove, circular groove diameter is identical as electric machine spacing plate overall diameter, and circular groove thickness is identical as electric machine spacing plate thickness；The pulley chamber
Body is the cavity of both ends open, and the central axes of two openings are mutually perpendicular to, and two openings are welded with ring flange, cavity side wall
There are small-sized gas ports；The track cavity is the cavity of both ends open, and the central axes of two openings are same straight line, and two open
Ring flange is respectively welded at mouthful, and the interior diameter of track cavity is greater than weight diameter；The pedestal cavity is open at one end
Cavity, opening is welded with ring flange, and the interior diameter of pedestal cavity is greater than weight diameter；The electric machine spacing plate is annular circle
Plate, plectane interior diameter are identical as direct current generator diameter.
The annular bottom plate overall diameter is identical as the opening ring flange overall diameter of guide rail cavity, and annular bottom plate is machined with bolt
Hole, position, quantity and the size of bolt hole and the opening ring flange of guide rail cavity are identical；1 overall diameter of cylindricality steel cylinder and ring
Shape bottom plate interior diameter is identical；The inside and outside diameter of bottom surface of the truncated cone-shaped steel cylinder is identical as the cylindricality steel cylinder inside and outside diameter in 1 bottom surface,
The bottom surface interior diameter of truncated cone-shaped steel cylinder is greater than 66mm, and upper bottom surface interior diameter is less than 66mm and is greater than power magnet diameter；The column
2 overall diameter of shape steel cylinder is identical as truncated cone-shaped steel cylinder upper bottom surface overall diameter, and interior diameter is greater than power magnet diameter；The annular roof plate
Overall diameter it is identical as 2 interior diameter of cylindricality steel cylinder, annular roof plate interior diameter be less than power magnet diameter be greater than nylon rope it is straight
Diameter.
The connection type of the device are as follows: absorption and the hammering external high-pressure air duct of subsystem gas port, high-pressure air duct are logical
It crosses threeway and is divided into two branches, branch 1 continues to be divided into two branches, branch 1-1 connection vacuum meter by threeway, and branch 1-2 connects
Vacuum pump is connect, places vacuum control valve in the non-son field of branch 1.Branch 2 successively connects ventilating control valve, pressure reducing valve and height
Air bottle.
The connection type of the absorption and hammering subsystem are as follows: the opening of the opening ring flange and pulley cavity of power supply cavity
The docking of 1 ring flange, one of ring flange are machined with O-ring slot, O-ring are placed in slot, and electric machine spacing plate is placed in power source cavity
Body is open in the circular groove of ring flange raised head face；2 ring flange of opening of pulley cavity and 1 ring flange pair of opening of track cavity
It connects, and accompanies the annular bottom plate of weight limit plate between two ring flanges, two ring flanges are machined with O-ring slot, and O is placed in slot
The part in addition to annular bottom plate of shape circle, weight limit plate is located in pulley cavity；2 ring flange of opening and pedestal of track cavity
The docking of cavity hatch ring flange, one of ring flange are machined with O-ring slot, O-ring are placed in slot；The flange of all docking
Disk is all made of bolts and nuts fastening；Bottom surface is 66mm's apart from weight limit plate truncated cone-shaped steel cylinder inner diameter in base cavity body
The distance in section is 690mm；Rising power supply, decline power supply are located in power source cavity body, rise magnetic switch and decline magnetic switch stickup
In power supply cavity inner wall, power supply chamber outer wall is marked with the paste position for rising magnetic switch and declining magnetic switch；Rise power supply just
Pole is connected by conducting wire with magnetic switch is risen, and is risen magnetic switch and is connected by conducting wire with direct current generator anode, rises power cathode
It is connected by conducting wire with direct current electrode negative；Decline positive pole is connected by conducting wire with decline magnetic switch, and decline magnetic switch is logical
It crosses conducting wire to be connected with direct current electrode negative, decline power cathode is connected by conducting wire with direct current generator anode；Direct current generator fuselage
It is inserted into electric machine spacing plate, drive end unit quartile is located at pulley inside cavity in power supply inside cavity, head section；Drive rod, cunning
Wheel is located at pulley inside cavity, and drive rod one end is connected with DC motor shaft, and the other end is connected with pulley, and pulley center is located at
On the central axes of track cavity；Nylon rope one end is lain in the middle part of pulley, and the other end passes through the annular roof plate of weight limit plate, and
The end is dynamic magnet.Weight initial position is located at pedestal cavity bottom.
The connection type of the weight limit plate are as follows: in annular bottom plate internal circle wire bonding cylindricality steel cylinder, cylindricality steel cylinder 1
End face 1 is overlapped with the end face 1 of annular bottom plate, welds truncated cone-shaped steel cylinder bottom surface, truncated cone-shaped steel cylinder in the end face of cylindricality steel cylinder 12
Bottom surface be overlapped with the end face 2 of cylindricality steel cylinder, truncated cone-shaped steel cylinder upper bottom surface weld cylindricality steel cylinder 2 end face 1, truncated cone-shaped steel cylinder
Upper bottom surface is overlapped with the end face 1 of cylindricality steel cylinder 2, and annular roof plate, annular roof plate upper bottom surface and column are welded in the end face 2 of cylindricality steel cylinder 2
The end face 2 of shape steel cylinder 2 is overlapped.
(2) device each section acts on
The high pressure gas cylinder is for storing high pressure gas gas；The pressure reducing valve is used for the pressure of methane gas in gas cylinder
It is converted into the pressure of a certain fixation of supply coal sample absorption；The ventilating control valve is used for the pumping in absorption and hammering subsystem
Vacuum stages disconnect its gas-guide pipeline with high pressure gas cylinder, which is in close state in vacuumizing phase, adsorb in inflation
Stage is in the open state；The vacuum control valve be used for absorption with hammering subsystem inflation absorption phase disconnect its with
The gas-guide pipeline of vacuum pump and vacuum meter, the valve is in the open state in vacuumizing phase, is in aeration phase and closes shape
State；The vacuum pump is used to adsorb to be extracted out with the air in hammering subsystem；The vacuum meter is for monitoring vacuum
The vacuum degree of middle absorption and hammering subsystem, to judge working effect and the working time of vacuum pump according to its registration.It is described
Absorption and the effect of hammering subsystem are to provide seal cavity to the adsorption equilibrium process of test coal sample and make in adsorption equilibrium
Hammering destructive process needed for coal sample under state completes solid coefficient test；High-pressure air duct is used for conduct high tension device in Gas
Body.
It is to rise power supply, decline that the effect of the power supply cavity, which is while guaranteeing absorption with hammering subsystem sealing performance,
Power supply, conducting wire rise magnetic switch, decline magnetic switch and direct current generator offer installation space；The effect of the pulley cavity is
Guarantee that absorption provides installation space with while hammering subsystem sealing performance for drive rod, pulley and direct current generator；The rail
The effect of road cavity is to guarantee absorption and constrain the track of weight drop while hammering subsystem sealing performance；The base cavity
The effect of body is to guarantee absorption and constrain the position of coal sample while hammering subsystem sealing performance, prevents coal sample hammering from destroying
Journey part coal sample, which is splashed, loses；The effect of the weight limit plate is to guarantee that weight drop height is 600mm while constraining weight
When whereabouts on the center line of track cavity；The effect for rising power supply is to promote weight process for direct current generator to provide energy
Amount；The effect of the decline power supply is that the process for declining weight for direct current generator provides energy；The effect for rising magnetic switch
It is the on-off that control rises power supply and direct current generator link circuit；The effect of the decline magnetic switch is control decline power supply and straight
The on-off of galvanic electricity machine link circuit；The effect of the control magnet is that control rises magnetic switch and declines the opening and closing shape of magnetic switch
State；The effect of the direct current generator is to provide power resources for adjustment weight position；The drive rod is used for direct current generator
Rotation passes to pulley；The effect of the pulley is the position for winding and unclamping nylon rope by own rotation and realize power magnet
Adjustment；The effect of the power magnet is the position adjustment for attracting weight to realize weight；The effect of the weight is broken for coal sample
It is bad that impact momentum is provided.
(3) operating process
The operating process of the device is divided into following steps:
Step 1: coal sample to be measured is smashed into pieces fritter that lumpiness is 20~30mm with hand hammer, sieved with the sieve of 20~30mm
Choosing.Weighing the coal sample 50g that sieve has taken is 1 part, and every 5 parts are one group, and nominal takes 3 groups.
Step 2: being placed on concrete or concrete floor for the device, and control magnet is placed in power supply chamber outer wall label
Down switch paste position, enable power magnet decline until power magnet contact and attract with weight, will control magnet set
In the paste position of the rising switch of power supply chamber outer wall label, so that weight is risen to it and be suspended in rail cavity body.By coal sample 1
Part is put into device pedestal cavity, fastens all flange plate bolts.
Step 3: successively closing ventilating control valve, opens vacuum control valve, opens vacuum meter, opens vacuum pump, protects
The state is held until vacuum meter registration is decreased to 10Pa or less.
Step 4: successively closing vacuum control valve, closes vacuum pump, closes vacuum meter, opens ventilating control valve, beats
High-pressure gas cylinder valve is opened, pressure reducing valve is adjusted, until the gas pressure of absorption and hammering subsystem that reducing valve pressure gage is shown reaches
To predetermined pressure, high-pressure gas cylinder valve is successively closed later, closes pressure reducing valve, closes ventilating control valve, stands 8 hours.
Step 5: control magnet is placed in the paste position of the rising switch of power supply chamber outer wall label, promotes weight, directly
It is limited and rises by weight limit plate to weight, it is caused to separate with power magnet, weight free-falling hammers coal sample.Adjustment control
The position of magnet repeats the promotion and free-falling process of weight, amounts to 3 times.
Step 6: absorption and the methane gas in hammering subsystem are discharged, broken coal sample is collected.
Step 7: repeating step 2 to step 6 and amount to 5 times, and the coal sample placed every time is 1 part of coal sample in step 1.
Step 8: broken one group of above-mentioned hammering (5 parts) coal sample is poured into together in the sub-sieve that aperture is 0.5mm and is sieved
Point, hold sub-sieve level with both hands and gently sieve, sieving amplitude is 200mm, until being sieved to the coal dust that no longer leaks down.
Step 9: the coal dust under sieve is put into hopper using funnel, gently beaing keeps its closely knit.Then it is gently inserted into
Have graduated piston ruler to contact with coal dust in cylinder, reads height of the coal dust in hopper, be denoted as L.
Step 10: as L >=30mm, the number of shocks n in step 5 can be set to 3 times, continue by above step
The measurement of other each groups.If when L < 30mm, first group of coal sample is cancelled, and the number of shocks n in step 5 is changed to 5 times, Qi Tabu
It is rapid constant, step 2 is re-started to step 9, measures coal dust height L.
Step 11: the calculation formula of solid coefficient f are as follows: f=20n/L, 3 groups of average measurement take the arithmetic average to be
Test the solid coefficient of coal sample adsorption equilibrium state under predetermined gas pressure.
Three, technical effect
The solid coefficient of the coal body under a certain fixed gas pressure in adsorption equilibrium state can be realized using the device
Measurement.
Detailed description of the invention
Attached drawing 1 is device entirety composition schematic diagram, and Fig. 2 is absorption and hammering subsystem composition schematic diagram, Fig. 3 be absorption with
The schematic diagram of the power supply cavity of subsystem is hammered, Fig. 4 is the schematic diagram of absorption with the pulley cavity of hammering subsystem, and Fig. 5 is to inhale
The attached schematic diagram with the guide rail cavity of hammering subsystem, Fig. 6 are the pedestal cavity schematic diagram of absorption with hammering subsystem, and Fig. 7 is
The weight postive stop baffle schematic diagram of absorption and hammering subsystem.
1-high pressure gas cylinder in figure, 2-pressure reducing valves, 3-ventilating control valves, 4-vacuum control valves, 5-vacuum pumps,
6-vacuum meters, 7-high-pressure air ducts, 8-absorption and hammering subsystem, 8-1-power supply cavity, 8-1-1-cylindricality steel cylinder 1,8-
1-2-circular steel plate 1,8-1-3-ring flange 1,8-2-pulley cavity, 8-2-1-cylindricality steel cylinder 2,8-2-2-cylindricality steel cylinder
3,8-2-3-ring flanges 2,8-2-4-ring flange 3,8-2-5-circular steel plate 2,8-3-track cavity, 8-3-1-cylindrical steel
Cylinder 4,8-3-2-ring flange 4,8-3-3-ring flange 5,8-4-pedestal cavity, 8-4-1-cylindricality steel cylinder 5,8-4-2-flange
Disk 6,8-4-3-blind plate, 8-5-weight limit plate, 8-5-1-annular bottom plate, 8-5-2-cylindricality steel cylinder 6,8-5-3-cylindricality
Steel cylinder 7,8-5-4-truncated cone-shaped steel cylinder, 8-5-5-annular roof plate, 8-6-rising power supply, 8-7-decline power supply, 8-8-are led
Line, 8-9-rising magnetic switch, 8-10-decline magnetic switch, 8-11-control magnet, 8-12-direct current generator, 8-13-motor
Limit plate, 8-14-drive rod, 8-15-pulley, 8-16-nylon rope, 8-17-power magnet, 8-18-weight.
Specific embodiment
Present invention specific implementation example is illustrated with reference to the accompanying drawing:
The specific implementation example of the device of coal body solid coefficient is by high pressure gas cylinder 1, decompression under a kind of measurement adsorbed state
Valve 2, ventilating control valve 3, vacuum control valve 4, vacuum pump 5, vacuum meter 6, high-pressure air duct 7 and absorption and hammering subsystem
8 compositions.
The absorption is with hammering subsystem 8 by power supply cavity 8-1, pulley cavity 8-2, track cavity 8-3, pedestal cavity 8-
4, weight limit plate 8-5, rise power supply 8-6, decline power supply 8-7, conducting wire 8-8, rise magnetic switch 8-9, decline magnetic switch 8-10,
Control magnet 8-11, direct current generator 8-12, electric machine spacing plate 8-13, drive rod 8-14, pulley 8-15, nylon rope 8-16, power
Magnet 8-17 and weight 8-18 composition.
The power supply cavity 8-1 is by cylindricality steel cylinder 1 (8-1-1), circular steel plate 1 (8-1-2) and ring flange 1 (8-1-3) group
At.
The pulley cavity 8-2 is by cylindricality steel cylinder 2 (8-2-1), cylindricality steel cylinder 3 (8-2-2), ring flange 2 (8-2-3), method
Blue disk 3 (8-2-4) and circular steel plate 2 (8-2-5) composition.
The track cavity 8-3 is made of cylindricality steel cylinder 4 (8-3-1), ring flange 4 (8-3-2) and ring flange 5 (8-3-3).
The pedestal cavity 8-4 is made of cylindricality steel cylinder 5 (8-4-1), ring flange 6 (8-4-2) and blind plate 8-4-3.
The weight limit plate 8-5 is by annular bottom plate 8-5-1, cylindricality steel cylinder 6 (8-5-2), cylindricality steel cylinder 7 (8-5-3), circle
Platform shape steel cylinder 8-5-4 and annular roof plate 8-5-5 composition.
The rising power supply 8-6 and decline power supply 8-7 is 12V DC power supply.
The rising magnetic switch 8-9 and decline magnetic switch 8-10 is magnetic switch, is off-state under normal condition,
Become closed state after meeting magnetic field.
Control magnet the 8-11 long 20mm, wide 10mm, high 10mm.
The direct current generator 8-12 outer diameter is 90mm, overall length 160mm.
The electric machine spacing plate 8-13 is the doughnut-shaped steel plate of outer diameter 120mm, internal diameter 90mm, thickness 5mm.
The drive rod 8-14 diameter 10mm, long 80mm.
The pulley 8-15 long 40mm, center-hole diameter 10mm.
The diameter of section of the nylon rope 8-16 is 5mm, length 1000mm.
The power magnet 8-17 outer diameter 30mm, total height 15mm.
The weight 8-18 is cylindrical cast iron, diameter 66mm, height 90mm, quality 2.4kg.
The long 195mm of the cylindricality steel cylinder 1 (8-1-1), outer diameter 110mm, internal diameter 95mm.The circular steel plate 1 (8-1-2) is straight
Diameter 95mm, thickness 5mm.1 (8-1-3) the outer diameter 210mm of ring flange, internal diameter 110mm, boss diameter 155mm, boss thickness
2mm, overall thickness 12mm, ring flange 1 (8-1-3) raised head face are machined with the circular groove that diameter is 120mm, depth 5mm.
The long 212mm of the cylindricality steel cylinder 2 (8-2-1), outer diameter 110mm, internal diameter 95mm.The cylindricality steel cylinder 3 (8-2-2) is outside
Diameter 89mm, internal diameter 77mm.2 (8-2-3) the outer diameter 210mm of ring flange, internal diameter 110mm, boss diameter 155mm, boss thickness
2mm, overall thickness 12mm, raised head face process O-ring slot, and groove body is in circular ring shape, annulus outer diameter 132mm, internal diameter 128mm, notch
Semicircular in shape, half circular diameter 4mm.3 (8-2-4) the outer diameter 190mm of ring flange, internal diameter 89mm, boss diameter 130mm, boss
Thickness 2mm, overall thickness 12mm, raised head face process O-ring slot, groove body be in circular ring shape, annulus outer diameter 112mm, internal diameter 108mm,
Notch semicircular in shape, half circular diameter 4mm.2 (8-2-5) diameter of circular steel plate is 95mm, thickness 5mm.
The long 560mm of the cylindricality steel cylinder 4 (8-3-1), outer diameter 89mm, internal diameter 77mm；The ring flange 4 (8-3-2) and method
Blue disk 5 (8-3-3) outer diameter is 190mm, internal diameter 89mm, boss diameter 130mm, boss thickness 2mm, overall thickness 12mm.Flange
(8-3-2) raised head face of disk 4 processes O-ring slot, and groove body is in circular ring shape, and annulus outer diameter 112mm, internal diameter 108mm, notch is in semicircle
Shape, half circular diameter 4mm.
The high 140mm of the cylindricality steel cylinder 5 (8-4-1), outer diameter 100mm, internal diameter 77mm, end face cylindricality steel cylinder 5 (8-4-1) 1
Processing diameter is the circular groove of 89mm, depth 40mm.6 (8-4-2) the outer diameter 190mm of ring flange, internal diameter 100mm, boss diameter
130mm, boss thickness 2mm, overall thickness 12mm, raised head face process O-ring slot, groove body be in circular ring shape, annulus outer diameter 112mm,
Internal diameter 108mm, notch semicircular in shape, half circular diameter 4mm；Blind plate 8-4-3 diameter 190mm, thickness 10mm.
The annular bottom plate 8-5-1 outer diameter 190mm, internal diameter 75mm, thickness 1mm, annular bottom plate 8-5-1 is apart from center of circle 80mm
Circumference on be machined with every 45 ° diameter be 20mm circular hole.Cylindricality steel cylinder 6 (8-5-2) outer diameter is 75mm, internal diameter is
It 71mm, is highly 10mm.7 (8-5-3) the internal diameter 26mm of cylindricality steel cylinder, outer diameter 30mm, high 20mm.The truncated cone-shaped steel cylinder 8-
The bottom 5-4 outer diameter 75mm, internal diameter 71mm, upper bottom outer diameter 30mm, internal diameter 26mm, height 39mm.The annular roof plate 8-5-5 outer diameter
26mm, internal diameter 10mm, thick 2mm.
The connection type of the embodiment are as follows: absorption and the hammering external high-pressure air duct 7 of 8 gas port of subsystem, high pressure is led
Tracheae 7 is divided into two branches by threeway, and branch 1 continues to be divided into two branches, branch 1-1 connection vacuum meter 6, branch by threeway
Road 1-2 connection vacuum pump 5 places vacuum control valve 4 in the non-son field of branch 1.The successive connection ventilating control valve 3 of branch 2,
Pressure reducing valve 2 and high pressure gas cylinder 1.
The connection type of the absorption and hammering subsystem 8 are as follows: power supply cavity 8-1 and pulley cavity 8-2 passes through ring flange 1
The docking of (8-1-3) and ring flange 2 (8-2-3) is connected with each other, and the O of corresponding size is placed in (8-2-3) O-ring of ring flange 2 slot
Shape circle, electric machine spacing plate 8-13 are placed in the circular groove of ring flange 1 (8-1-3) raised head face.Pulley cavity 8-2 and track cavity 8-
3 realize interconnection, ring flange 3 (8-2-4) and ring flange 4 by the docking of ring flange 3 (8-2-4) and ring flange 4 (8-3-2)
The annular bottom plate 8-5-1 of weight limit plate 8-5, the O of ring flange 3 (8-2-4) and ring flange 4 (8-3-2) are accompanied between (8-3-2)
The O-ring of corresponding size is placed in type ring recess.Track cavity 8-3 and pedestal cavity 8-4 passes through ring flange 5 (8-3-3) and flange
The docking of disk 6 (8-4-2), which is realized, to be connected with each other, and the O-ring of corresponding size is placed in the O-ring slot of ring flange 6 (8-4-2).Institute
There is the ring flange of docking to be all made of bolts and nuts fastening.Rising power supply 8-6, decline power supply 8-7 are located in power supply cavity 8-1,
Rise magnetic switch 8-9 and decline magnetic switch 8-10 is pasted on power supply cavity 8-1 inner wall, power supply cavity 8-1 outer wall is marked with rising
The paste position of magnetic switch 8-9 and decline magnetic switch 8-10.Rise power supply 8-6 anode by conducting wire 8-8 and rises magnetic switch 8-9
It is connected, rises magnetic switch 8-9 and be connected by conducting wire 8-8 with direct current generator 8-12 anode, rises power supply 8-6 cathode and pass through conducting wire 8-
8 are connected with direct current generator 8-12 cathode.Decline power supply 8-7 anode is connected by conducting wire 8-8 with decline magnetic switch 8-10, and magnetic is declined
Switch 8-10 is connected by conducting wire 8-8 with direct current generator 8-12 cathode, and decline power supply 8-7 cathode passes through conducting wire 8-8 and direct current
Machine 8-12 anode is connected.Direct current generator 8-12 fuselage is inserted into electric machine spacing plate 8-13, and drive end unit quartile is in power supply cavity 8-1
Portion, head section are located inside pulley cavity 8-2.Drive rod 8-14, pulley 8-15 are located inside pulley cavity 8-2, drive rod
The one end 8-14 is connected with direct current generator 8-12 shaft, and the other end is connected with pulley 8-15, and the center pulley 8-15 is located at rail cavity body
On the central axis of 8-3.The one end nylon rope 8-16 is lain in the middle part of pulley 8-15, and the other end passes through the annular of weight limit plate 8-5
Top plate 8-5-5, and be dynamic magnet 8-17 at the end.Weight 8-18 initial position is located at the bottom pedestal cavity 8-4.
The connection type of the power supply cavity 8-1 are as follows: circular steel plate 1 (8-1-2) is welded on the end cylindricality steel cylinder 1 (8-1-1)
Face 1, the bottom surface (8-1-2) of circular steel plate 1 are overlapped with end face cylindricality steel cylinder 1 (8-1-1) 1.Ring flange 1 (8-1-3) is welded on cylindricality
The end face 2 of steel cylinder 1 (8-1-1), the boss circular groove bottom surface ring flange 1 (8-1-3) are overlapped with end face cylindricality steel cylinder 1 (8-1-1) 2.
The connection type of the pulley cavity 8-2 are as follows: cylindricality steel cylinder 2 (8-2-1) and cylindricality steel cylinder 3 (8-2-2) vertical welding
It connects.The bottom surface (8-2-5) of circular steel plate 2 is overlapped with the end face 1 of cylindricality steel cylinder 2 (8-2-1).The center of circle circular steel plate 2 (8-2-5) just
It is the circular hole of 10mm as gas port that diameter is processed at the 30mm of top.In 2 welding flange 2 of the end face of cylindricality steel cylinder 2 (8-2-1)
(8-2-3), (8-2-3) raised head face of ring flange 2 are overlapped with the end face 2 of cylindricality steel cylinder 2 (8-2-1).In 3 (8-2- of cylindricality steel cylinder
2) unwelded end face welding flange 3 (8-2-4), the end of (8-2-4) raised head face of ring flange 3 and cylindricality steel cylinder 3 (8-2-2)
Face is overlapped.
The connection type of the track cavity 8-3 are as follows: ring flange 4 (8-3-2) and end face cylindricality steel cylinder 4 (8-3-1) 1 are welded
It connects, (8-3-2) raised head face of ring flange 4 is overlapped with end face cylindricality steel cylinder 4 (8-3-1) 1, ring flange 5 (8-3-3) and cylindricality steel cylinder
4 sides (8-3-1) are welded close to 2 one end of the end face cylindricality steel cylinder 4 (8-3-1), (8-3-3) raised head face of ring flange 5 and cylindrical steel
The distance of 4 end faces (8-3-1) 2 of cylinder is 30mm.
The connection type of the pedestal cavity 8-4 are as follows: 1 welding flange 6 (8-4-2) of the end face cylindricality steel cylinder 5 (8-4-1),
(8-4-2) raised head face of ring flange 6 is overlapped with end face cylindricality steel cylinder 5 (8-4-1) 1.Weld blind in end face cylindricality steel cylinder 5 (8-4-1) 2
Plate 8-4-3, end face cylindricality steel cylinder 5 (8-4-1) 2 are overlapped with blind plate 8-4-3 upper bottom surface.
The connection type of the weight limit plate 8-5 are as follows: 6 (8-5- of annular bottom plate 8-5-1 internal circle wire bonding cylindricality steel cylinder
2), the end face 1 of cylindricality steel cylinder 6 (8-5-2) is overlapped with the lower end surface of annular bottom plate 8-5-1.The end face 2 of cylindricality steel cylinder 6 (8-5-2)
Truncated cone-shaped steel cylinder 8-5-4 is welded, truncated cone-shaped steel cylinder 8-5-4 bottom surface is overlapped with the end face 2 of cylindricality steel cylinder 6 (8-5-2).Truncated cone-shaped
Steel cylinder 8-5-4 upper bottom surface welds cylindricality steel cylinder 7 (8-5-3), truncated cone-shaped steel cylinder 8-5-4 upper bottom surface and cylindricality steel cylinder 7 (8-5-3)
End face 1 is overlapped.Weld annular roof plate 8-5-5, annular roof plate 8-5-5 upper bottom surface and cylindricality in the end face 2 of cylindricality steel cylinder 7 (8-5-3)
The end face 2 of steel cylinder 7 (8-5-3) is overlapped.
The operating process of the embodiment are as follows:
Step 1: coal sample to be measured is smashed into pieces fritter that lumpiness is 20~30mm with hand hammer, sieved with the sieve of 20~30mm
Choosing.Weighing the coal sample 50g that sieve has taken is 1 part, and every 5 parts are one group, and nominal takes 3 groups.
Step 2: being placed on concrete or concrete floor for the device, and control magnet 8-11 is placed in outside power supply cavity 8-1
The paste position of the decline magnetic switch 8-10 of wall label enables power magnet 8-17 decline until power magnet 8-17 and weight 8-18
It contacts and attracts, magnet 8-11 will be controlled and be placed in the paste position for rising magnetic switch 8-9 that power supply cavity 8-1 outer wall marks, made
Weight 8-18 rises to it and is suspended in track cavity 8-3.1 part of coal sample is put into device pedestal cavity 8-4, all methods are fastened
Blue valve snail bolt.
Step 3: successively closing ventilating control valve 3, opens vacuum control valve 4, opens vacuum meter 6, opens vacuum pump
5, the state is kept until vacuum meter shows that 6 numbers are decreased to 10Pa or less.
Step 4: successively closing vacuum control valve 4, closes vacuum pump 5, closes vacuum meter 6, opens ventilating control valve
3, high-pressure gas cylinder valve 1 is opened, pressure reducing valve 2 is adjusted, until the gas of absorption and hammering subsystem 8 that 2 pressure gauge of pressure reducing valve is shown
Body pressure reaches predetermined pressure, successively closes high pressure gas cylinder 1 later, closes pressure reducing valve 2, closes ventilating control valve 3, stands 8
Hour.
Step 5: magnet 8-11 will be controlled and be placed in the sticky position for rising magnetic switch 8-9 that power supply cavity 8-1 outer wall marks
It sets, promotes weight 8-18, rise until weight 8-18 is limited by weight limit plate 8-5, it is caused to separate with power magnet 8-17,
Weight 8-18 free-falling hammers coal sample.The position of adjustment control magnet 8-11, repeats the promotion and free-falling of weight 8-18
Process amounts to 3 times.
Step 6: absorption and the methane gas in hammering subsystem 8 are discharged, broken coal sample is collected.
Step 7: repeating step 2 to step 6 and amount to 5 times, and the coal sample placed every time is 1 part of coal sample in step 1.
Step 8: broken one group of above-mentioned hammering (5 parts) coal sample is poured into together in the sub-sieve that aperture is 0.5mm and is sieved
Point, hold sub-sieve level with both hands and gently sieve, sieving amplitude is 200mm, until being sieved to the coal dust that no longer leaks down.
Step 9: the coal dust under sieve is put into hopper using funnel, gently beaing keeps its closely knit.Then it is gently inserted into
Have graduated piston ruler to contact with coal dust in cylinder, reads height of the coal dust in hopper, be denoted as L.
Step 10: as L >=30mm, the number of shocks n in step 5 can be set to 3 times, continue by above step
The measurement of other each groups.If when L < 30mm, first group of coal sample is cancelled, and the number of shocks n in step 5 is changed to 5 times, Qi Tabu
It is rapid constant, step 2 is re-started to step 9, measures coal dust height L.
Step 11: the calculation formula of solid coefficient f are as follows: f=20n/L, 3 groups of average measurement take the arithmetic average to be
Test the solid coefficient of coal sample adsorption equilibrium state under predetermined gas pressure.
Claims (5)
1. it is a kind of measurement adsorbed state under coal body solid coefficient device, it is characterised in that: including high pressure gas cylinder, pressure reducing valve,
Ventilating control valve, vacuum control valve, vacuum pump, vacuum meter, high-pressure air duct and absorption and hammering subsystem.Absorption and hammer
Hit subsystem include power supply cavity, pulley cavity, track cavity, pedestal cavity, weight limit plate, rise power supply, decline power supply,
Conducting wire rises magnetic switch, decline magnetic switch, control magnet, direct current generator, electric machine spacing plate, drive rod, pulley, nylon rope, moves
Power magnet and weight.Absorption is divided into two by threeway with the hammering external high-pressure air duct of subsystem gas port, high-pressure air duct
Branch, branch 1 continue to be divided into two branches, branch 1-1 connection vacuum meter, branch 1-2 connection vacuum pump, in branch by threeway
1 non-son field places vacuum control valve.Branch 2 successively connects ventilating control valve, pressure reducing valve and high pressure gas cylinder.Power source cavity
The docking of body, pulley cavity, track cavity, pedestal cavity and weight limit plate forms sealing adsorbent equipment.Rise power supply, decline
Power supply, conducting wire rise magnetic switch, decline magnetic switch, control magnet, direct current generator, electric machine spacing plate, drive rod, pulley, nylon
Rope, power magnet and matching for weight are combined into hammering device.Seal the absorption of installation hammering device composition and hammer inside adsorbent equipment
Hit subsystem.
2. the device of coal body solid coefficient under a kind of measurement adsorbed state according to claim 1, which is characterized in that logical
Cross inside the seal cavity install hammering device mode realize so that coal sample to be measured be in adsorption equilibrium state under complete measurement heavily fortified point
Hammering destructive process needed for solidity coefficient.
3. the device of coal body solid coefficient under a kind of measurement adsorbed state according to claim 1, which is characterized in that adopt
Realize that weight fixed height falls and fixation locus falls with the mutual cooperation of power magnet and weight limit plate.
4. the device of coal body solid coefficient under a kind of measurement adsorbed state according to claim 1, which is characterized in that logical
It crosses realization at a distance from adjustment control magnet and rising magnetic switch, decline magnetic switch and adjusts weight position outside sealing adsorbent equipment
It sets.
5. the device of coal body solid coefficient under a kind of measurement adsorbed state according to claim 1, which is characterized in that its
Implementation method the following steps are included:
Step 1: coal sample to be measured is smashed into pieces fritter that lumpiness is 20~30mm with hand hammer, screened with the sieve of 20~30mm.Claim
The coal sample 50g for taking sieve to take is 1 part, and every 5 parts are one group, and nominal takes 3 groups.
Step 2: control magnet is placed in the paste position of the down switch of power supply chamber outer wall label, power magnet is enabled to decline
Until power magnet contacts and attracts with weight, control magnet is placed in the sticky position of the rising switch of power supply chamber outer wall label
It sets, so that weight is risen to it and be suspended in rail cavity body.1 part of coal sample is put into device pedestal cavity, all ring flanges are fastened
Bolt.
Step 3: successively closing ventilating control valve, opens vacuum control valve, opens vacuum meter, opens vacuum pump, and keeping should
State is until vacuum meter registration is decreased to 10Pa or less.
Step 4: successively closing vacuum control valve, closes vacuum pump, closes vacuum meter, opens ventilating control valve, opens high
It calms the anger bottle valve, adjusts pressure reducing valve, until absorption that reducing valve pressure gage show and hammering the gas pressure of subsystem and reaching pre-
Constant-pressure successively closes high-pressure gas cylinder valve later, closes pressure reducing valve, closes ventilating control valve, stands 8 hours.
Control magnet: being placed in the paste position of the rising switch of power supply chamber outer wall label, promotes weight by step 5, until weight
Hammer is limited by weight limit plate to be risen, and causes it to separate with power magnet, weight free-falling hammers coal sample.Adjustment control magnet
Position, repeat weight promotion and free-falling process, amount to 3 times.
Step 6: absorption and the methane gas in hammering subsystem are discharged, broken coal sample is collected.
Step 7: repeating step 2 to step 6 and amount to 5 times, and the coal sample placed every time is 1 part of coal sample in step 1.
Step 8: broken one group of above-mentioned hammering (5 parts) coal sample is poured into together in the sub-sieve that aperture is 0.5mm and is sieved,
Hold sub-sieve level with both hands gently to sieve, sieving amplitude is 200mm, until being sieved to the coal dust that no longer leaks down.
Step 9: the coal dust under sieve is put into hopper using funnel, gently beaing keeps its closely knit.Then gently insertion has
The piston ruler of scale is contacted with coal dust in cylinder, is read height of the coal dust in hopper, is denoted as L.
Step 10: as L >=30mm, the number of shocks n in step 5 can be set to 3 times, continue other by above step
The measurement of each group.If when L < 30mm, first group of coal sample is cancelled, and the number of shocks n in step 5 is changed to 5 times, and other steps are not
Become, re-starts step 2 to step 9, measure coal dust height L.
Step 11: the calculation formula of solid coefficient f are as follows: f=20n/L, it is to test that 3 groups of average measurement, which take arithmetic average,
The solid coefficient of coal sample adsorption equilibrium state under predetermined gas pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536289.1A CN110095361A (en) | 2019-06-20 | 2019-06-20 | The device of coal body solid coefficient under a kind of measurement adsorbed state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536289.1A CN110095361A (en) | 2019-06-20 | 2019-06-20 | The device of coal body solid coefficient under a kind of measurement adsorbed state |
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| Publication Number | Publication Date |
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| CN110095361A true CN110095361A (en) | 2019-08-06 |
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ID=67451172
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910536289.1A Pending CN110095361A (en) | 2019-06-20 | 2019-06-20 | The device of coal body solid coefficient under a kind of measurement adsorbed state |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484105A (en) * | 2021-07-03 | 2021-10-08 | 南京盛航海运股份有限公司 | Ship cabin gas monitoring system |
| WO2024016926A1 (en) * | 2022-07-19 | 2024-01-25 | 中煤科工集团沈阳研究院有限公司 | Test device and method for measuring strength of coal rock in gas-solid coupled state |
-
2019
- 2019-06-20 CN CN201910536289.1A patent/CN110095361A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113484105A (en) * | 2021-07-03 | 2021-10-08 | 南京盛航海运股份有限公司 | Ship cabin gas monitoring system |
| CN113484105B (en) * | 2021-07-03 | 2024-05-10 | 南京盛航海运股份有限公司 | Ship cabin air monitoring system |
| WO2024016926A1 (en) * | 2022-07-19 | 2024-01-25 | 中煤科工集团沈阳研究院有限公司 | Test device and method for measuring strength of coal rock in gas-solid coupled state |
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