CN110201869A - Coal mine gob draws out methane the dual anti-pipeline processing method of Po - Google Patents
Coal mine gob draws out methane the dual anti-pipeline processing method of Po Download PDFInfo
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- CN110201869A CN110201869A CN201910492269.9A CN201910492269A CN110201869A CN 110201869 A CN110201869 A CN 110201869A CN 201910492269 A CN201910492269 A CN 201910492269A CN 110201869 A CN110201869 A CN 110201869A
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- Prior art keywords
- steel pipe
- coal mine
- processing method
- pipeline processing
- dual anti
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003245 coal Substances 0.000 title claims abstract description 25
- 230000009977 dual effect Effects 0.000 title claims abstract description 23
- 238000003672 processing method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 117
- 239000010959 steel Substances 0.000 claims abstract description 117
- 239000000843 powder Substances 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000007664 blowing Methods 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005507 spraying Methods 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000002203 pretreatment Methods 0.000 claims abstract description 4
- 238000007493 shaping process Methods 0.000 claims abstract description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 20
- 239000004743 Polypropylene Substances 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- -1 polypropylene Polymers 0.000 claims description 12
- 229920001155 polypropylene Polymers 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 11
- 239000002562 thickening agent Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- 238000007761 roller coating Methods 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000005480 shot peening Methods 0.000 claims description 7
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 244000137852 Petrea volubilis Species 0.000 claims description 3
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000706 filtrate Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000004880 explosion Methods 0.000 abstract description 8
- 239000011435 rock Substances 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003063 flame retardant Substances 0.000 abstract description 3
- 230000002269 spontaneous effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 25
- 239000002245 particle Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 5
- 239000005751 Copper oxide Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910000431 copper oxide Inorganic materials 0.000 description 5
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical class [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 206010003497 Asphyxia Diseases 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000019771 cognition Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0218—Pretreatment, e.g. heating the substrate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/10—Homopolymers or copolymers of propene
- C09D123/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2507/00—Polyolefins
- B05D2507/02—Polypropylene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Draw out methane the dual anti-pipeline processing method of Po the invention discloses coal mine gob, belongs to the dual anti-pipeline processing technical field of coal mine；Coal mine gob draws out methane the dual anti-pipeline processing method of Po, specifically includes following steps；Prepare Po powder, steel tube surface pretreatment, high-temperature heat treatment, spraying Po powder, steel pipe forming pre-treatment, blowing drying, shaping packaging factory.Processing method in the present invention can be improved the anti-of steel pipe and pound the ability of hitting, and then slump rock can be made not generate spark when striking steel pipe, a possibility that reducing gas explosion, and the flame retardant property and antistatic property of Po powder are relatively good, and then electrostatic will not be generated in subsurface environment spontaneous combustion or in subsurface environment, a possibility that further reducing gas explosion improves the personal safety of personnel in the pit.
Description
Technical field
The present invention relates to the dual anti-pipeline processing field of coal mine more particularly to the coal mine gob dual anti-pipelines of Po that draws out methane to add
Work method.
Background technique
There is a large amount of gas in coal mine gob, and the main component of gas is methane, also containing a small amount of hydrogen sulfide and
Carbon dioxide can make one death by suffocation, and the burning point of gas is extremely low, easily explodes, according to state when gas density is excessively high
Family requires and standard, coal mine gob should permanently draw out methane, to prevent the burst accidents such as gas explosion, detonation.
The gas in extraction goaf uses gas drainage pipe extraction, gas drainage pipe root in the prior art in the prior art
Steel releasing pipe and plastics releasing pipe can be divided into according to material, since the chlorine of underground coal mine is higher from content, free chlorine defection with
The steel extraction tube reaction of underground, is likely to result in stainless steel and is worn by erosion, and the steel pipe after eating thrown can leak gas, may make well
Lower staff's death by suffocation is generally all built due to coal mine and is located in the ground several hundred meters of position, and the soil property of underground is more loose, may
The case where will appear falling rocks, the rock of slump, which can be pounded, hits releasing pipe, pounds and hits steel releasing pipe and may generate spark, and then may
Can light the gas in goaf, cause explosion, pound hit plastics gas drainage pipe may directly pound it is flat, pound and wear releasing pipe, into
And it is likely to result in the leakage of gas, and underground labour is endangered, and plastics gas drainage pipe belongs to combustibles, it may be certainly in underground
Combustion, the antistatic property of plastics gas drainage pipe is poor, is easy to generate electrostatic in subsurface environment, and it is quick-fried may to cause gas
It is fried and then a kind of sturdy and durable and particularly important with anticorrosion and antistatic flame retarding function pipe fitting.
Summary of the invention
The purpose of the present invention is to solve the problems of the prior art, and the coal mine gob proposed the Po that draws out methane is bis-
Anti- pipeline processing method.
To achieve the goals above, present invention employs following technical solutions:
Coal mine gob draws out methane the dual anti-pipeline processing method of Po, specifically includes the following steps:
S1, preparation Po powder: A: polypropylene, thickener, water, dilute hydrochloric acid are placed in configuration bucket；
B: heating and melting is sufficiently stirred；
C, six nitric hydrate copper 30-50Kg are added；
D, evaporative crystallization is precipitated；
E, the screen to filtrate；
S2, steel tube surface pretreatment；
S3, high-temperature heat treatment；Steel pipe is pushed into electric furnace, electric in-furnace temperature is 250-380 DEG C；
S4, lifting steel pipe: will be on the lifting steel pipes after heating to rolling tooling；
S5, spraying Po powder: in steel pipe inner wall and outer wall of steel pipe while roller coating Po powder；
S6, steel pipe forming pre-treatment:
A, the steel pipe for spraying Po powder is placed in high pressure steam case；
B, it is passed through the mixed gas of carbon dioxide and sulfur dioxide；
S7, blowing drying；
S8, shaping packaging factory.
Preferably, feed components are formed by following mass parts in step A:
Polypropylene: 50-80 parts
Water: 30-50 parts
Dilute hydrochloric acid: 20-30 parts
Thickener: 5-8 parts.
Preferably, the heating temperature in step B is 90-110 DEG C, mixing speed 250-450r/min.
Preferably, the temperature of evaporative crystallization is 150-180 DEG C in step E.
Preferably, step S2 steel tube surface pretreatment the following steps are included:
1., polishing notch: using sand paper or be sanded wheel polishing steel pipe notch；
2., shot peening: remove the rust stain of steel pipe inner wall and outer wall of steel pipe using shot, and obtain coarse steel tube surface.
Preferably, the shot peening grade reaches Sa2.5 grades.
Preferably, the pressure in step a mesohigh steam chest is 18-28Mpa, and vapor (steam) temperature is 70-90 DEG C.
Preferably, it is 1:2 that carbon dioxide is passed through in step b and is passed through the speed ratio of sulfur dioxide.
Preferably, in step S7 blowing drying the following steps are included:
C: using blowing outside compressed air, temperature is 70-80 DEG C, pressure 0.3-0.5Mpa；
D: using steam internally blowing, and temperature is 70-80 DEG C, pressure 0.6-1.0Mpa.
Preferably, the sieve screen apertures in step F are 80-100 mesh.
Compared with prior art, draw out methane the dual anti-pipeline processing method of Po the present invention provides coal mine gob, have
Below the utility model has the advantages that
1, the goaf draws out methane the dual anti-pipeline processing method of Po, dual anti-pipeline processing Po powder its component include polypropylene,
Thickener, water, dilute hydrochloric acid, six hydrated copper sulfates heat configuration bucket, and during heating, polypropylene will hydrolyze, and lead to
It crosses dilute hydrochloric acid to react to form Po mixed solution with the polypropylene of hydrolysis, the sticky of the Po mixed solution of preparation is increased by thickener
Degree removes the microorganism and bacterium in Po mixed solution by six hydrated copper sulfates, after sufficiently reacting, improves to configuration bucket
Heating temperature is 165 DEG C by heating temperature, and the moisture in Po mixed solution is gradually evaporated, and Po powdered granule and oxygen is precipitated
Change copper particle, the mixture that obtained Po powder particles and copper oxide particle are precipitated is crossed into the sieve of 90 mesh, and then screen out in mixing
The biggish impurity of particle.
Before processing, using wheel polishing notch is sanded, shot high speed is sprayed into impact steel pipe inner wall using air compressor
And outer wall of steel pipe, it is contacted by shot with steel pipe impact, and then remove the rust stain on steel pipe inner wall and outer wall of steel pipe, and pass through iron
The impact of ball and steel pipe contacts, and then becomes in steel tube surface the surface for having certain roughness, and pretreated steel pipe is pushed into
In electric furnace, heating is taken out after 15 minutes.
In processing, by the lifting steel pipes after heating on rolling tooling, by rolling tooling tooling, and then steel pipe is driven
Rotation will match the Po powder roller coating postponed on steel pipe inner wall and outer wall of steel pipe, the residual temperature of steel tube surface after being heat-treated by steel pipe
Heat melts Po powder, and then Po powder is made to be melted in steel tube surface, by steel pipe static 8 minutes after roller coating, makes the PO of steel pipe inside and outside wall
Powder is sufficiently plasticized levelling, reaches specific thickness.
Before the hardening of Po powder, steel pipe is placed in high pressure steam case, carbon dioxide and sulfur dioxide gas are passed through, is passed through
Carbon dioxide and sulfur dioxide gas cognition so that steam ambient in steam chest is become acidic environment, the copper oxide meeting mixed in Po powder
Displacement reaction occurs with steel pipe, and then forms one layer of copper film in steel tube surface, the copper film formed by steel tube surface further mentions
The high corrosion resistance of steel pipe and anti-pound the ability of hitting.
In steel pipe formation of tubes, use temperature for 75 DEG C, pressure is that the compressed air of 0.4Mpa blows outer wall of steel pipe, in turn
Make the Po powder hardened forming on outer wall of steel pipe on outer wall of steel pipe, uses temperature for 75 DEG C, pressure is that the steam of 0.8Mpa blows steel
Inside pipe wall, and then make the Po powder hardened forming on steel pipe inner wall on steel pipe inner wall, by the Po powder being laid on steel pipe inside and outside wall,
And then can be improved the anti-of steel pipe and pound the ability of hitting, and then slump rock can be made not generate spark when striking steel pipe, reduce gas
A possibility that explosion, and the flame retardant property of Po powder and antistatic property are relatively good, so will not subsurface environment spontaneous combustion or
A possibility that subsurface environment generates electrostatic, further reduces gas explosion, improves the personal safety of personnel in the pit.
Specific embodiment
Below in conjunction in the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment 1:
Coal mine gob draws out methane the dual anti-pipeline processing method of Po, specifically includes the following steps:
S1, preparation Po powder: A: polypropylene, thickener, water, dilute hydrochloric acid are placed in configuration bucket；
B: heating and melting is sufficiently stirred；
C, six nitric hydrate copper 40Kg are added；
D, evaporative crystallization is precipitated；
E, the screen to filtrate；
S2, steel tube surface pretreatment；
S3, high-temperature heat treatment；Steel pipe is pushed into electric furnace, electric in-furnace temperature is 300 DEG C；
S4, lifting steel pipe: will be on the lifting steel pipes after heating to rolling tooling；
S5, spraying Po powder: in steel pipe inner wall and outer wall of steel pipe while roller coating Po powder；
S6, steel pipe forming pre-treatment:
A, the steel pipe for spraying Po powder is placed in high pressure steam case；
B, it is passed through the mixed gas of carbon dioxide and sulfur dioxide
S7, blowing drying；
S8, shaping packaging factory.
Feed components are formed by following mass parts in step A:
Polypropylene: 70Kg
Water: 40L
Dilute hydrochloric acid: 25L
Thickener: 7Kg.
Heating temperature in step B is 98 DEG C, mixing speed 300r/min, is 300r/min by mixing speed, into
And the raw material configured in bucket can be made to be sufficiently mixed, improve the production purity of Po powder.
The temperature of evaporative crystallization is 165 DEG C in step E.
Step S2 steel tube surface pretreatment the following steps are included:
1., polishing notch: using sand paper or be sanded wheel polishing steel pipe notch；
2., shot peening: remove the rust stain of steel pipe inner wall and outer wall of steel pipe using shot, and obtain coarse steel tube surface, lead to
The rough surface obtained after shot peening is crossed, Po powder of being more convenient for is molded over steel tube surface.
Shot peening grade reaches Sa2.5 grades, when derusting grade reaches Sa2.5 grades, steel pipe inner wall and outer wall of steel pipe meeting
Without visible grease, dirt, oxide skin, iron rust and painting layer attachment, so the Po powder in next step of being more convenient for spray at
Type.
Pressure in step a mesohigh steam chest is 25Mpa, and vapor (steam) temperature is 80 DEG C.
Being passed through carbon dioxide in step b and being passed through the speed ratio of sulfur dioxide is 1:2, by carbon dioxide and is passed through dioxy
The speed ratio for changing sulphur is 1:2, and then environment in steam chest can be made acid annular, by weak acid and strong acid, and then makes to steam
Acidic environment in vapour case is not up to the acidity environment that can corrode steel pipe.
In step S7 blowing drying the following steps are included:
C: using blowing outside compressed air, temperature is 75 DEG C, pressure 0.4Mpa；
D: using steam internally blowing, and temperature is 75 DEG C, pressure 0.8Mpa.
Sieve screen apertures in step F are 90 mesh.
Dual anti-pipeline processing includes polypropylene, thickener, water, dilute hydrochloric acid, six hydrated copper sulfates with its component of Po powder, will be gathered
Propylene 70Kg, thickener 7Kg, water 40L, dilute hydrochloric acid 25L, six hydrated copper sulfate 40Kg be placed on configuration bucket in, to configuration bucket into
Row heating, during heating, polypropylene will hydrolyze, and react with the polypropylene of hydrolysis that form Po mixing molten by dilute hydrochloric acid
Liquid increases the viscosity of the Po mixed solution of preparation by thickener, is removed in Po mixed solution by six hydrated copper sulfates
Microorganism and bacterium improve the heating temperature to configuration bucket after sufficiently reacting, and are 165 DEG C by heating temperature, Po mixing is molten
Moisture in liquid is gradually evaporated, and Po powdered granule and copper oxide particle is precipitated, the Po powder particles and copper oxide that precipitation is obtained
The mixture of particle crosses the sieve of 90 mesh, and then screens out the mixing biggish impurity of endoparticle.
Before processing, using wheel polishing notch is sanded, shot high speed is sprayed into impact steel pipe inner wall using air compressor
And outer wall of steel pipe, it is contacted by shot with steel pipe impact, and then remove the rust stain on steel pipe inner wall and outer wall of steel pipe, and pass through iron
The impact of ball and steel pipe contacts, and then becomes in steel tube surface the surface for having certain roughness, and pretreated steel pipe is pushed into
In electric furnace, taken out after being heated 15 minutes at a high temperature of 300 DEG C.
In processing, by the lifting steel pipes after heating on rolling tooling, by rolling tooling tooling, and then steel pipe is driven
Rotation will match the Po powder roller coating postponed on steel pipe inner wall and outer wall of steel pipe, the residual temperature of steel tube surface after being heat-treated by steel pipe
Heat melts Po powder, and then Po powder is made to be melted in steel tube surface, by steel pipe static 8 minutes after roller coating, makes the PO of steel pipe inside and outside wall
Powder is sufficiently plasticized levelling, reaches specific thickness, it is specified that thickness outer wall of steel pipe 5mm, steel pipe inner wall 2mm.
Before the hardening of Po powder, steel pipe is placed in high pressure steam case, carbon dioxide and sulfur dioxide gas are passed through, is passed through
Carbon dioxide and sulfur dioxide gas cognition so that steam ambient in steam chest is become acidic environment, the copper oxide meeting mixed in Po powder
Displacement reaction occurs with steel pipe, and then forms one layer of copper film in steel tube surface, the copper film formed by steel tube surface further mentions
The high corrosion resistance of steel pipe and anti-pound the ability of hitting.
In steel pipe formation of tubes, use temperature for 75 DEG C, pressure is that the compressed air of 0.4Mpa blows outer wall of steel pipe, in turn
Make the Po powder hardened forming on outer wall of steel pipe on outer wall of steel pipe, uses temperature for 75 DEG C, pressure is that the steam of 0.8Mpa blows steel
Inside pipe wall, and then make the Po powder hardened forming on steel pipe inner wall on steel pipe inner wall, by the Po powder being laid on steel pipe inside and outside wall,
And then can be improved the anti-of steel pipe and pound the ability of hitting, and then slump rock can be made not generate spark when striking steel pipe, reduce gas
A possibility that explosion, and the flame retardant property of Po powder and antistatic property are relatively good, so will not subsurface environment spontaneous combustion or
A possibility that subsurface environment generates electrostatic, further reduces gas explosion, improves the personal safety of personnel in the pit.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
- The dual anti-pipeline processing method of Po 1. coal mine gob draws out methane, which is characterized in that specifically includes the following steps:S1, preparation Po powder: A: polypropylene, thickener, water, dilute hydrochloric acid are placed in configuration bucket；B: heating and melting is sufficiently stirred；C, six nitric hydrate copper 30-50Kg are added；D, evaporative crystallization is precipitated；E, the screen to filtrate；S2, steel tube surface pretreatment；S3, high-temperature heat treatment；Steel pipe is pushed into electric furnace, electric in-furnace temperature is 250-380 DEG C；S4, lifting steel pipe: will be on the lifting steel pipes after heating to rolling tooling；S5, spraying Po powder: in steel pipe inner wall and outer wall of steel pipe while roller coating Po powder；S6, steel pipe forming pre-treatment:The steel pipe for spraying Po powder is placed in high pressure steam case；It is passed through the mixed gas of carbon dioxide and sulfur dioxide；S7, blowing drying；S8, shaping packaging factory.
- The dual anti-pipeline processing method of Po 2. coal mine gob according to claim 1 draws out methane, which is characterized in that step Feed components are formed by following mass parts in A:Polypropylene: 50-80 partsWater: 30-50 partsDilute hydrochloric acid: 20-30 partsThickener: 5-8 parts.
- The dual anti-pipeline processing method of Po 3. coal mine gob according to claim 1 draws out methane, which is characterized in that step Heating temperature in B is 90-110 DEG C, mixing speed 250-450r/min.
- The dual anti-pipeline processing method of Po 4. coal mine gob according to claim 1 draws out methane, which is characterized in that step Temperature in E when evaporative crystallization is 150-180 DEG C.
- The dual anti-pipeline processing method of Po 5. coal mine gob according to claim 1 draws out methane, which is characterized in that step S2 steel tube surface pretreatment the following steps are included:1., polishing notch: using sand paper or be sanded wheel polishing steel pipe notch；2., shot peening: remove the rust stain of steel pipe inner wall and outer wall of steel pipe using shot, and obtain coarse steel tube surface.
- The dual anti-pipeline processing method of Po 6. coal mine gob according to claim 5 draws out methane, which is characterized in that described Shot peening grade reaches Sa2.5 grades.
- The dual anti-pipeline processing method of Po 7. coal mine gob according to claim 1 draws out methane, which is characterized in that step Pressure in a mesohigh steam chest is 18-28Mpa, and vapor (steam) temperature is 70-90 DEG C.
- The dual anti-pipeline processing method of Po 8. coal mine gob according to claim 1 draws out methane, which is characterized in that step Being passed through carbon dioxide in b and being passed through the speed ratio of sulfur dioxide is 1:2.
- The dual anti-pipeline processing method of Po 9. coal mine gob according to claim 1 draws out methane, which is characterized in that step In S7 blowing drying the following steps are included:C: using blowing outside compressed air, temperature is 70-80 DEG C, pressure 0.3-0.5Mpa；D: using steam internally blowing, and temperature is 70-80 DEG C, pressure 0.6-1.0Mpa.
- The dual anti-pipeline processing method of Po 10. coal mine gob according to claim 1 draws out methane, which is characterized in that step Sieve screen apertures in rapid F are 80-100 mesh.
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| CN201910492269.9A CN110201869A (en) | 2019-06-06 | 2019-06-06 | Coal mine gob draws out methane the dual anti-pipeline processing method of Po |
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| CN201013402Y (en) * | 2007-02-09 | 2008-01-30 | 王欣 | Special gas pumping pipe for coal mine |
| CN101865350A (en) * | 2010-06-04 | 2010-10-20 | 无锡兆辉机械制造有限公司 | Manufacturing method of steel rotational moulding pipeline with polyolefin lining layer |
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