CN106939773B - A kind of drilling fluid mud screening drying method for treating and drilling fluid mud screening plant - Google Patents
A kind of drilling fluid mud screening drying method for treating and drilling fluid mud screening plant Download PDFInfo
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- CN106939773B CN106939773B CN201710318006.7A CN201710318006A CN106939773B CN 106939773 B CN106939773 B CN 106939773B CN 201710318006 A CN201710318006 A CN 201710318006A CN 106939773 B CN106939773 B CN 106939773B
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- drilling fluid
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- fluid mud
- air knife
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- 238000005553 drilling Methods 0.000 title claims abstract description 109
- 239000012530 fluid Substances 0.000 title claims abstract description 84
- 238000001035 drying Methods 0.000 title claims abstract description 34
- 238000012216 screening Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 230000000505 pernicious effect Effects 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000010926 purge Methods 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010419 fine particle Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 239000007790 solid phase Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 claims 1
- 238000005520 cutting process Methods 0.000 abstract description 21
- 238000003860 storage Methods 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 28
- 238000010586 diagram Methods 0.000 description 9
- 239000012065 filter cake Substances 0.000 description 8
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 235000005121 Sorbus torminalis Nutrition 0.000 description 2
- 244000152100 Sorbus torminalis Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention relates to a kind of mud drying method for treating and for the screening plant of mud drying and other treatment, belong to petroleum drilling fluid separation of solid and liquid, drilling cuttings drying and other treatment technical field.The mud drying method for treating be liquid separation slot sub-material by drilling fluid mud through material feeding box, vacuum tank absorption and air knife purging and etc. carry out drying and other treatment；The drilling cuttings liquid content after being separated can be effectively reduced, while effectively removing the pernicious gas and volatile organic substance in drilling cuttings, facilitates the collection, storage and transport of drilling cuttings.And pass through the adjusting of outlet angle and tolerance to air knife, blowback can be carried out for different places, different types of material on sieve, thus the desiccation effect for improving mud has positive meaning to the pollution of atmosphere and the harmfulness of operating environment to drilling cuttings is reduced.
Description
Technical field
The present invention relates to a kind of drilling fluid mud screening drying method for treating and drilling fluid mud screening plants, belong to petroleum drilling
Well liquid separation of solid and liquid, drilling cuttings drying and other treatment technical field.
Background technique
During petroleum drilling operation, drilling fluid is in well drilling pipe column hydrophthalmia injection pit shaft through between well drilling pipe column and pit shaft
The annular space of formation is back to the ground circulatory system.Drilling fluid carries out drilling cuttings during returning out from pit shaft, drilling cuttings is through shaking
Dynamic sieve, desander, centrifuge are separated, and the drilling cuttings being separated contains a large amount of drilling fluid, formation gas etc. and pollute
Ingredient.
Currently, the drilling cuttings being separated usually all is emitted in the cesspool of well site by concentration, or solidified, or by its
Landfill.As environmental protection requirement is increasingly stringenter, the enhancing of corporate environment protective awareness proposes zero discharge of drill cuttings or does not fall
The requirement on ground.Closed collection and transportation of cuttings are had begun both at home and abroad to factory is focused on, and harmless treatment is carried out to drilling cuttings,
Propose the new concept of situ of drilling well drill chip innocent processing in recent years simultaneously.But processing cost is generally higher, it is difficult to push away
Extensively.
On the other hand, contain a large amount of liquid in the drilling cuttings that the equipment such as vibrating screen are separated due to passing through;And it is harmful
Gas and volatile organic substance.Not only storage and freight volume are big, and are easy to appear in storage and transportation process since diafiltration comes out
Liquid landing and gas and volatile substances caused by pollute, and increase the processing total amount of centralized processing, cause
Keep harmless treatment cost excessively high.
Summary of the invention
It is an object of the invention to: the drilling cuttings liquid content after being separated can be effectively reduced by providing one kind, while effectively be removed
The drilling fluid mud screening plant and drilling fluid mud of pernicious gas and volatile organic substance in drilling cuttings sieve drying and other treatment
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of drilling fluid mud screening drying method for treating；It is characterized by: it the following steps are included:
1), the drilling fluid mud that pit shaft returns out is pumped into the charging of drilling fluid mud screening plant out of collecting pit first
It in case, and is branched on sieve by the liquid separation slot of material feeding box, while controlling thickness of the drilling fluid mud on sieve 10-
30mm；
2), control sieve revolving speed starts vibrating motor in 0.05 ~ 0.168m/s range, and controls its vibration frequency and exist
Within the scope of 5000-7700Hz, so that vibrating motor drives sieve to vibrate by oscillating plate；
3) while, oscillating plate drives sieve vibration, start vacuum plant, and control vacuum degree in 20KPa -60KPa model
It encloses, is acted on making it through vacuum tank to sieve, thus to moisture, pernicious gas and volatile materials in drilling fluid mud
It is adsorbed, and desiccation is realized to drilling fluid mud；
4), vacuum plant by drilling fluid mud moisture, pernicious gas (Deng) and volatility
Substance (petroleum hydrocarbon compound, after benzene homologues (toluene, ethylbenzene, dimethylbenzene) are adsorbed in vacuum plant, pernicious gas and volatility
Substance is separated from liquid phase, and carries out burning processing through exhaust outlet discharge；Adsorbed moisture and part fine particle size
Solid phase through reflux tube pump to collecting pit in enter subsequent work recycle；
5), in the vacuum plant course of work, drilling fluid mud (filter cake) on sieve after drying and other treatment with sieve after
Continuous to move ahead, when drilling fluid mud moves at windward cutter position, upper air knife starts work, during this, controls upper air knife
Operating angle in 20 ° -45 ° ranges, and control the wind speed of air knife in 510L/min -1650L/min range, to reduce drilling well
The speed of service of liquid mud makes drilling fluid mud roll on sieve, to purge again to drilling fluid mud (filter cake)
Drying and other treatment；
6), the drilling fluid mud (filter cake) through drying and other treatment again continues to move ahead and fall in collection box to collect with sieve
And focus on, when the sieve after unloading drilling fluid mud (filter cake) is run to leeward cutter position；Lower air knife starts work, with
Cleaning treatment is carried out to mud remaining in sieve mesh, guarantees the penetrating of sieve mesh, during this, controls lower air knife
Operating angle controls the wind speed of air knife in 510L/min -1650L/min in 5 ° -10 ° ranges；
7), mesh it is cleaned treated that sieve continues to rotate operation, sieve after cleaning treatment is run to material feeding box
When at position, the drilling fluid mud in material feeding box is branched to by liquid separation slot on the sieve after cleaning treatment；It can enter next
Working cycles.
Drilling fluid mud screening plant described in step 1), including rack, driving roller, driven roller, driving motor, sieve
Net and vacuum tank；One end of rack drives and driving motor is housed in the rack of roller side equipped with driving roller, and driving motor is logical
Retarder is crossed to connect with driving roller；The other end of rack is equipped with driven roller by stretcher, drives roller and driven roller
It is upper that sieve is housed, pass through rack at the upper side of driving roller and upper air knife is housed, side is equipped with down by rack below driving roller
Air knife；Material feeding box is equipped with by rack above driven roller；Sieve lower surface between driving roller and driven roller passes through machine
Rack-mounted to have vacuum tank, vacuum tank is provided with vibrator, and by being connected to vacuum plant communicating pipe, front end of rack is provided with vacuum tank
Collection box.
The vibrator is made of oscillating plate and vibrating motor, and the oscillating plate is latticed cuboid, vibration
The lower surface of plate is fixed with vibrating motor.
The vibrator is connect by oscillating plate with the sliding contact of sieve lower surface.
The vacuum tank is rectangular pyramid body, and the top of vacuum tank is in open-like shape, and the bottom of vacuum tank is provided with connection
It manages, is provided with rectangular seal bar at the top of vacuum tank, vacuum tank is slidably and sealingly connected with by sealing strip and sieve lower surface.
It is provided with rectangular seal slot at the top of the vacuum tank, is placed with sealing water in seal groove, under vacuum tank and sieve
It is water-stop between surface.
The sieve is circular screen；The two sides of sieve are fixed with triangular driving band.
The driving roller and driven roller are made of drum shaft, support tube and driving pulley respectively, on drum shaft
It is fixedly mounted with support tube, driving pulley is fixed on the drum shaft of support tube two sides, the provided circumferentially about of driving pulley has belt
Slot is connected with each other between sieve and driving roller and driven roller by the cooperation of triangular driving band and belt grooves.
The support tube circumferential surface is provided with rubber antiskid layer, is provided with anti-skid chequer on anti-slip layer.
The material feeding box is cuboid, and top cover is arranged in the top of material feeding box, and the side of material feeding box is provided with feed pipe, into
Multiple liquid separation slots are arranged in the other side of hopper, and feed pipe and liquid separation slot are connected to material feeding box respectively.
The stretcher is made of sliding rail, mounting plate and adjustment screw rod, and mounting plate, mounting plate are slidably fitted on sliding rail
On be provided with adjustment screw rod, adjustment screw rod is connect by feed screw nut with rack.
The upper air knife and lower air knife is made of air knife body, installation and adjustment plate, mounting rod and connecting rod respectively, and installation is adjusted
It saves plate to be arranged in symmetry shape, is provided with mounting hole and multiple angle adjustment holes on installation and adjustment plate；It is fixedly mounted between installation and adjustment plate
There is a mounting rod, air knife body is fixed with by connecting rod on mounting rod, air knife body is connected to high-pressure air source.
The fan-shaped setting of the angle adjustment holes.
The air knife body is hollow strip, and section is taper, and the front end of air knife body is provided with airflow orifice.
The vacuum plant is liquid-ring vacuum pump.
To show mud drying and other treatment effect of the invention, applicant has carried out testing inspection to drilling fluid mud, knot
Fruit is as follows:
The beneficial effects of the present invention are:
The mud drying method for treating is liquid separation slot sub-material, vacuum tank absorption and the air knife by drilling fluid mud through material feeding box
Purging and etc. carry out drying and other treatment；The drilling cuttings liquid content after being separated can be effectively reduced, while effectively removing having in drilling cuttings
Evil gas and volatile organic substance, facilitate the collection, storage and transport of drilling cuttings.And pass through the outlet angle and gas to air knife
The adjusting of amount can carry out blowback for different places, different types of material on sieve, thus improve the desiccation effect of mud
Fruit has positive meaning to the pollution of atmosphere and the harmfulness of operating environment to drilling cuttings is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of drilling fluid mud screening plant of the present invention；
Fig. 2 is the overlooking structure diagram of drilling fluid mud screening plant；
Fig. 3 is the structural schematic diagram of the sieve of drilling fluid mud screening plant；
Fig. 4 is the structural schematic diagram of the material feeding box of drilling fluid mud screening plant；
Fig. 5 is the structural schematic diagram of the air knife of drilling fluid mud screening plant；
Fig. 6 is the structural schematic diagram of the roller of drilling fluid mud screening plant；
Fig. 7 is the structural schematic diagram of the vacuum tank of drilling fluid mud screening plant；
Fig. 8 is the structural schematic diagram of the vibrator of drilling fluid mud screening plant；
Fig. 9 is the structural schematic diagram of the stretcher of drilling fluid mud screening plant.
In figure: 1, rack, 2, driving roller, 3, driven roller, 4, driving motor, 5, sieve, 6, vacuum tank, 7, tensioning
Device, 8, drum shaft, 9, support tube, 10, driving pulley, 11, upper air knife, 12, lower air knife, 13, air knife body, 14, installation and adjustment
Plate, 15, mounting rod, 16, connecting rod, 17, mounting hole, 18, airflow orifice, 19, material feeding box, 20, feed pipe, 21, liquid separation slot, 22,
Connecting tube, 23, oscillating plate, 24, vibrating motor, 25, sliding rail, 26, mounting plate, 27, adjustment screw rod, 28, collection box, 29, angle
Adjustment hole.
Specific embodiment
Drilling fluid mud screening plant includes rack 1, driving roller 2, driven roller 3, driving motor 4, sieve 5 and vacuum
Case 6；One end of rack 1 drives equipped with driving roller 2 and is provided with collection box 28 in the rack 1 of 2 side of roller.Drive roller 2 another
Driving motor 4 is housed, driving motor 4 is connect by retarder with driving roller 2 in the rack 1 of side；The other end of rack 1 is logical
Stretcher 7 is crossed equipped with driven roller 3, stretcher 7 is made of sliding rail 25, mounting plate 26 and adjustment screw rod 27, and peace is slided on sliding rail
Equipped with mounting plate 26, adjustment screw rod 27 is provided on mounting plate 26, adjustment screw rod 27 is connect by feed screw nut with rack 1.It drives
Sieve 5 is housed on dynamic roller 2 and driven roller 3.
Driving roller 2 and driven roller 3 are made of drum shaft 8, support tube 9 and driving pulley 10 respectively, on drum shaft 8
It is fixed with support tube 9, the circumferential surface of support tube 9 is provided with rubber antiskid layer, is provided with anti-skid chequer on anti-slip layer.Support tube 9
Driving pulley 10 is fixed on the drum shaft 8 of two sides, the provided circumferentially about of driving pulley 10 there are belt grooves, and sieve 5 is ring
Shape sieve；The two sides of sieve 5 are fixed with triangular driving band.It is passed between sieve 5 and driving roller 2 and driven roller 3 by triangle
Dynamic band and the cooperation of belt grooves are connected with each other.
It drives and upper air knife 11 is equipped with by rack 1 at the upper side of roller 2, driving 2 lower section side of roller is equipped with by rack 1
Lower air knife 12.Upper air knife 11 and lower air knife 12 are respectively by air knife body 13,16 structure of installation and adjustment plate 14, mounting rod 15 and connecting rod
At installation and adjustment plate 14 is arranged in symmetry shape, is provided with mounting hole 17 and multiple angle adjustment holes 18, angle on installation and adjustment plate 14
Spend the fan-shaped setting of adjustment hole 18.It is fixed with mounting rod 15 between installation and adjustment plate 14, is consolidated on mounting rod 15 by connecting rod 15
Equipped with air knife body 13, air knife body 13 is hollow strip, and section is taper, and the front end of air knife body 13 is provided with airflow orifice 18,
Air knife body 13 with high-pressure air source by being connected to communicating pipe.The purpose of angle adjustment holes 18 is to adjust the angle of installation and adjustment plate 14,
And then adjust the operating angle of air knife body 13.
Material feeding box 19 is equipped with by rack 1 above driven roller 3；Material feeding box 19 is cuboid, and the top of material feeding box 19 is set
Top set lid, the side of material feeding box 19 are provided with feed pipe 20, and multiple liquid separation slots 21, feed pipe 20 is arranged in the other side of material feeding box 19
It is connected to respectively with material feeding box 19 with liquid separation slot 21.The purpose of liquid separation slot 21 is to flow out drilling fluid mud slurry uniform, prevents drilling fluid
Mud is on sieve 5 in longitudinal accumulation.
Drive 5 lower surface of sieve between roller 2 and driven roller 3 that vacuum tank 6 is housed by rack 1, vacuum tank 6 is four
Pyramid body, the top of vacuum tank 6 are in open-like shape, and the bottom of vacuum tank 6 is provided with connecting tube 22, the top setting of vacuum tank 6
There is rectangular seal bar, vacuum tank 6 is slidably and sealingly connected with by sealing strip and 5 lower surface of sieve.As an improvement, also can be in vacuum tank
Rectangular seal slot is arranged in 6 tops, is placed with sealing water, water-stop between 5 lower surface of vacuum tank 6 and sieve in seal groove.Vacuum
Case 6 is connected to by connecting tube 22 with vacuum plant；Vacuum plant is liquid-ring vacuum pump.
Vacuum tank 6 is provided with vibrator, and vibrator is made of oscillating plate 23 and vibrating motor 24, and oscillating plate 23 is latticed
Cuboid, the lower surface of oscillating plate 23 is fixed with vibrating motor 24.Vibrator is slided by 5 surfaces under oscillating plate 23 and sieve
It connects.
Drilling fluid mud sieves drying method for treating are as follows:
The drilling fluid mud that pit shaft returns out is pumped into the material feeding box of drilling fluid mud screening plant out of collecting pit first
In 19, and branched on sieve 5 by the liquid separation slot 21 of material feeding box 19.Drilling fluid mud is shunted by the liquid separation slot 21 of material feeding box 19
During on to sieve 5, by the adjusting flashboard on liquid separation slot 21, the load of drilling fluid mud is controlled, and then control and bore
Paving thickness of the well liquid mud on sieve 5 is in 10-30mm.
During drilling fluid mud is branched on sieve 5 by the liquid outlet groove 21 of material feeding box 19, while controlling 5 revolving speed of sieve
In 0.05 ~ 0.168m/s range, and start vibrating motor 24, controls its vibration frequency within the scope of 5000-7700Hz, so that
Vibrating motor 24 drives sieve 5 to vibrate by oscillating plate 23.
While oscillating plate 23 drives sieve 5 to vibrate, start vacuum plant, and control vacuum degree in 20KPa -60KPa model
It encloses, to make it through in the effect to sieve 5 of vacuum tank 6, thus to moisture, pernicious gas and volatility object in drilling fluid mud
Matter is adsorbed, and realizes desiccation to drilling fluid mud；Vacuum plant by drilling fluid mud moisture, pernicious gas (Deng) and volatile materials (petroleum hydrocarbon compound, benzene homologues (toluene, ethylbenzene, dimethylbenzene) are adsorbed to
After in vacuum plant, pernicious gas and volatile materials are separated from liquid phase；And it is carried out at burning through exhaust outlet discharge
Reason；The solid phase of adsorbed moisture and part fine particle size enters subsequent work in reflux tube pump to collecting pit and recycles；
In the vacuum plant course of work, the drilling fluid mud (filter cake) on sieve 5 after drying and other treatment continues with sieve 5
It moves ahead, when drilling fluid mud moves at 11 position of upper air knife, upper air knife 12 starts work, during this, controls windward
The operating angle of knife 11 controls the wind speed of air knife in 510L/min -1650L/min range, to reduce in 20 ° -45 ° ranges
The speed of service of drilling fluid mud, and drilling fluid mud is made to roll on sieve 5, thus to drilling fluid mud (filter cake) again into
Row purging drying and other treatment；
Drilling fluid mud (filter cake) through drying and other treatment again continues to move ahead and fall in collection box 28 to collect with sieve 5
And focus on, when at the operation to 12 position of lower air knife of sieve 5 after unloading drilling fluid mud (filter cake)；Lower air knife 12 starts work
Make, cleaning treatment is carried out to mud remaining in 5 mesh of sieve, to guarantee the penetrating of 5 mesh of sieve, during this, control
The operating angle of lower air knife 12 controls the wind speed of air knife in 510L/min -1650L/min in 5 ° -10 ° ranges；Mesh warp
Sieve 5 after cleaning treatment continues to rotate operation, when at the operation to 19 position of material feeding box of sieve 5 after cleaning treatment, charging
Drilling fluid mud in case 19 passes through on the sieve 5 after liquid outlet groove 21 branches to cleaning treatment；Thus enter subsequent work to recycle.
This method is by adjusting the vacuum degree in vacuum tank, it can be achieved that different mud, sludge are effectively treated.By to upper air knife
The adjusting of outlet angle and tolerance can carry out blowback for the online different places of band screen, different types of material, improve mud
The desiccation effect of slurry, and by lower air knife can cleaning screen is blocked on the net, adhered to well material, keep the cleaning of sieve.It is right
Reducing drilling cuttings has positive meaning to the pollution of atmosphere and the harmfulness of operating environment.
Claims (10)
1. a kind of drilling fluid mud sieves drying method for treating；It is characterized by: it the following steps are included:
1), the drilling fluid mud that pit shaft returns out is pumped into the material feeding box of drilling fluid mud screening plant out of collecting pit first
(19) it in, and is branched on sieve (5) by the liquid separation slot (21) of material feeding box (19), while controlling drilling fluid mud in sieve
(5) thickness on is in 10-30mm；
2), control sieve (5) revolving speed starts vibrating motor (24) in 0.05 ~ 0.168m/s range, and controls its vibration frequency and exist
Within the scope of 5000-7700Hz, so that vibrating motor (24) drives sieve (5) vibration by oscillating plate (23)；
3) while, oscillating plate (23) drives sieve (5) vibration, start vacuum plant, and control vacuum degree in 20KPa-
60KPa range, to make it through in vacuum tank (6) effect to sieve (5), thus to moisture, You Haiqi in drilling fluid mud
Body and volatile materials are adsorbed, and realize desiccation to drilling fluid mud；
4), vacuum plant has after in moisture, pernicious gas and the volatile substance adsorption to vacuum plant in drilling fluid mud
Evil gas and volatile materials are separated from liquid phase, and carry out burning processing through exhaust outlet discharge；Adsorbed moisture
And the solid phase of part fine particle size enters subsequent work in reflux tube pump to collecting pit and recycles；
5), in the vacuum plant course of work, before the drilling fluid mud on sieve (5) after drying and other treatment continues with sieve (5)
Row, when drilling fluid mud moves at upper air knife (11) position, upper air knife (11) starts work, during this, in control
The operating angle of air knife (11) controls the wind speed of upper air knife (11) in 510L/min -1650L/min in 20 ° -45 ° ranges
Range makes drilling fluid mud roll on sieve (5) to reduce the speed of service of drilling fluid mud, thus to drilling fluid mud
Purging drying and other treatment is carried out again；
6), the drilling fluid mud through drying and other treatment again continues to move ahead and fall on collection in collection box with sieve (5) and concentrates
Processing, when the sieve (5) after unloading drilling fluid mud is run to lower air knife (12) position, lower air knife (12) starts work, with
Cleaning treatment is carried out to mud remaining in sieve mesh, guarantees the penetrating of sieve (5) mesh, during this, controls leeward
The operating angle of knife (12) controls the wind speed of lower air knife (12) in 510L/min -1650L/min in 5 ° -10 ° ranges；
7), mesh it is cleaned treated that sieve (5) continues to rotate operation, sieve (5) operation after cleaning treatment is to feeding
When at case (19) position, the drilling fluid mud in material feeding box (19) branches to the sieve after cleaning treatment by liquid separation slot (21)
(5) on；Subsequent work can be entered to recycle.
2. a kind of drilling fluid mud according to claim 1 sieves drying method for treating；It is characterized by: described in step 1)
Drilling fluid mud screening plant, including rack (1), driving roller (2), driven roller (3), driving motor (4), sieve (5)
With vacuum tank (6)；One end of rack (1) drives in the rack (1) of roller (2) side equipped with driving roller (2) equipped with driving electricity
Machine (4), driving motor (4) are connect by retarder with driving roller (2)；The other end of rack (1) is equipped with by stretcher (7)
Driven roller (3) drives and sieve (5) is housed on roller (2) and driven roller (3), passes through rack at the upper side of driving roller (2)
(1) upper air knife (11) are housed, side is equipped with lower air knife (12) by rack (1) below driving roller (2)；On driven roller (3)
Side is equipped with material feeding box (19) by rack (1)；Sieve (5) lower surface between driving roller (2) and driven roller (3) passes through machine
Frame (1) is equipped with vacuum tank (6), and vacuum tank (6) is provided with vibrator, and vacuum tank (6) with vacuum plant by being connected to communicating pipe, machine
Frame (1) front end is provided with collection box (28)；Vacuum plant is liquid-ring vacuum pump.
3. a kind of drilling fluid mud according to claim 2 sieves drying method for treating；It is characterized by: the vibration
Device is made of oscillating plate (23) and vibrating motor (24), and the oscillating plate (23) is latticed cuboid, oscillating plate (23)
Lower surface be fixed with vibrating motor (24)；The vibrator passes through oscillating plate (23) and sieve (5) lower surface sliding contact
Connection.
4. a kind of drilling fluid mud according to claim 2 sieves drying method for treating；It is characterized by: the vacuum
Case (6) is rectangular pyramid body, and the top of vacuum tank (6) is in open-like shape, and the bottom of vacuum tank (6) is provided with connecting tube (22), very
Rectangular seal slot is provided at the top of empty van (6), vacuum tank (6) is slidably and sealingly connected with by seal groove and sieve (5) lower surface.
5. a kind of drilling fluid mud according to claim 4 sieves drying method for treating；It is characterized by: the vacuum
It is provided with rectangular seal slot at the top of case (6), sealing water is placed in seal groove, is between vacuum tank (6) and sieve (5) lower surface
Water-stop；The sieve (5) is circular screen；The two sides of sieve (5) are fixed with triangular driving band.
6. a kind of drilling fluid mud according to claim 2 sieves drying method for treating；It is characterized by: the driving
Roller (2) and driven roller (3) are made of drum shaft (8), support tube (9) and driving pulley (10) respectively, on drum shaft (8)
It is fixedly mounted with support tube (9), is fixed with driving pulley (10) on the drum shaft (8) of support tube (9) two sides, driving pulley (10)
It is provided circumferentially about to have belt grooves, pass through triangular driving band and belt between sieve (5) and driving roller (2) and driven roller (3)
The cooperation of slot is connected with each other；Described support tube (9) circumferential surface is provided with rubber antiskid layer, is provided on anti-slip layer anti-skidding
Line.
7. a kind of drilling fluid mud according to claim 2 sieves drying method for treating；It is characterized by: the charging
Case (19) is cuboid, and top cover is arranged in the top of material feeding box (19), and the side of material feeding box (19) is provided with feed pipe (20), is fed
Multiple liquid separation slots (21) are arranged in the other side of case (19), and feed pipe (20) and liquid separation slot (21) are connected to material feeding box (19) respectively.
8. a kind of drilling fluid mud according to claim 2 sieves drying method for treating；It is characterized by: the tensioning
Device (7) is made of sliding rail (25), mounting plate (26) and adjustment screw rod (27), and mounting plate (26) are slidably fitted on sliding rail (25),
Adjustment screw rod (27) is provided on mounting plate (26), adjustment screw rod (27) is connect by feed screw nut with rack (1).
9. a kind of drilling fluid mud according to claim 2 sieves drying method for treating；It is characterized by: the windward
Knife (11) and lower air knife (12) are made of air knife body (13), installation and adjustment plate (14), mounting rod (15) and connecting rod (16) respectively,
Installation and adjustment plate (14) is arranged in symmetry shape, is provided with mounting hole (17) and multiple angle adjustment holes on installation and adjustment plate (14)
(29)；It is fixed between installation and adjustment plate (14) mounting rod (15), is fixed with air knife by connecting rod (16) on mounting rod (15)
Body (13), air knife body (13) are connected to high-pressure air source.
10. a kind of drilling fluid mud according to claim 9 sieves drying method for treating；It is characterized by: the angle
Spend adjustment hole (29) fan-shaped setting；The air knife body (13) is hollow strip, and section is taper, air knife body (13)
Front end is provided with airflow orifice (18).
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| CN201710318006.7A CN106939773B (en) | 2017-05-08 | 2017-05-08 | A kind of drilling fluid mud screening drying method for treating and drilling fluid mud screening plant |
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| CN201710318006.7A CN106939773B (en) | 2017-05-08 | 2017-05-08 | A kind of drilling fluid mud screening drying method for treating and drilling fluid mud screening plant |
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| CN106939773A CN106939773A (en) | 2017-07-11 |
| CN106939773B true CN106939773B (en) | 2019-03-15 |
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| CN201710318006.7A Expired - Fee Related CN106939773B (en) | 2017-05-08 | 2017-05-08 | A kind of drilling fluid mud screening drying method for treating and drilling fluid mud screening plant |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108343391A (en) * | 2018-04-19 | 2018-07-31 | 西南石油大学 | A kind of disposal of cuttings thermal release structure of drum-type |
| CN111841138A (en) * | 2020-07-16 | 2020-10-30 | 陕西艾潽机械制造有限公司 | Negative pressure sieve |
| CN112480882B (en) * | 2020-10-22 | 2022-10-28 | 河北省水利工程局集团有限公司 | Improved drilling fluid with high-strength wall protection effect and preparation method and equipment thereof |
| CN116078034A (en) * | 2023-04-12 | 2023-05-09 | 山东辰星石油装备有限公司 | Negative pressure vibrating screen for slurry treatment |
| CN116752917B (en) * | 2023-08-17 | 2023-12-19 | 河南中正石油起重机械有限公司 | Negative pressure shale shaker for well drilling |
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