CN102191031B - Production method for manufacturing quartz fracturing sand special for oil field - Google Patents
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Abstract
The invention relates to a production method for manufacturing quartz fracturing sand special for an oil field, which comprises the following steps of: leading a raw material, namely the quartz sand, to flow into a spiral sand washing machine via a sand tank for rough washing; feeding into a cylindrical sand-washing screening machine for secondary water washing until a turbidity standard is less than or equal to 100 FTU; mixing through a dehydrating spiral sand washing machine to damage water vapor layers covering the surfaces of sand grains, and performing dry cleaning and dehydrating; delivering to dehydrating equipment for standing and dehydrating for 20 to 30 minutes to reduce a moisture content to be below 20 percent; delivering to a rotary cylindrical quartz sand drying oven at 90 to 120 DEG C, heating for 25 to 30 minutes for drying; and screening the dried quartz sand by the cylindrical screening machine, wherein the quartz sand with a grain diameter of 0.425 to 0.85 mm is the special quartz fracturing sand. By adoption of the method, the production efficiency is improved, the product quality is ensured, and the industrialized production is realized, and the method is free of the influences of the weather, environment and season changes.
Description
Technical field
The present invention relates to a kind of production method of making quartz fracturing sand special for oil field.
Background technology
Along with the development of petroleum industry and the progress of science and technology, hydraulic fracturing technology technique becomes important measures of land low permeability oil field volume increase, and in hydraulic fracturing technology technique, the selection of propping agent is most important, and propping agent commonly used is quartz fracturing sand.Quartz fracturing sand is with its cheap price, good use properties, and at home and abroad the consumption in the field produces ranks first, and obtains the oil field and will be prepared from through a lot of operations with quartz fracturing sand from exploiting to.At present, domestic many quartz fracturing sand producing apparatus complex structures, constant, the production technique of operation fall behind immature.Natural siliceous sand screens from the sand seedbed, remove stone and part earth in the middle of being mixed in, also need raw materials for production quartz sand is transported to manufacturer, after the clean dehydration of washing, when making its water content reach 10-20%, dry again, the processing of the operation such as screening, because working method and production unit without specialty cause the production cycle long, industrial production efficiency is low, dehydration procedure poor effect especially, and human and material resources drop into high, and dehydration is subjected to weather effect, cause easily secondary pollution, affect quality product, can not satisfy the service requirements in oil field.
A kind of " Novel propping agent that uses during the injection well pressure break " patent application was disclosed on April 30th, 1 in State Intellectual Property Office, publication number: CN1414213, use when it relates to a kind of oilfield injection well pressure break in order to support the Novel propping agent of formation fracture.Its composition comprises quartz sand, sneaks into nut-shell in quartz sand, and the volume ratio of nut-shell and quartz sand is 0.8～1.2: 0.8～1.2, and the particle diameter of selected nut-shell is 1.0～3.0mm.It makes fracturing sand can not enter inside, crack, and the crack mouth can be not closed too early because lacking propping agent, improves the injection well fracturing effect.
On August 14th, 2002, bulletin was authorized a kind of " pellet quartz sand specially for oil production production method ", Granted publication number: CN1089076, it is with natural quartz rock or blout, the treated coarse sand of making drops in the comprehensive shredder, under the condition that adds abrasive, ground 2-3 hour, material after will grinding again cleans and dries, and when making its water content reach 8-12%, changes drying, screening and iron removal step over to again and processes; Then select polishing machine to add rumbling compound and carry out polished finish, the material after the polishing sieves, packs.
Summary of the invention
The purpose of this invention is to provide a kind of production method of making quartz fracturing sand special for oil field, its suite of equipment is simple in structure, easy to operate, the technological process of production is advanced, can realize large-scale industrial production, and realizes the quartz fracturing sand production method of the oil field special use of automated operation.
The production method of manufacturing quartz fracturing sand special for oil field of the present invention:
(1) raw material quartz sand is slightly washed by sand tank inflow screw sand washer by lift;
(2) be transported to through the quartz sand of slightly washing and carry out secondary washing in the cylinder washed-out sand sifting machine, reach turbidity standard≤100FTU;
(3) the washing quartz sand of wash clean stirs by the dewatering spiral sand washer, destroys the steam layer that coats sand grain surface, dry-cleans and dewaters;
(4) quartz sand after the dehydration is transported in the dehydration equipment that main body rotation and level be the 20-40 degree and leaves standstill dehydration, make its water content drop to≤20%, 20～30 minutes time;
(5) quartz sand after the dehydration is transported in the rotary type cylinder quartz sand stoving oven by rotary conveyor I, and body of heater is heated to 90～120 ℃, and quartz sand is dried through 25～30 minutes heating in rotary type cylinder quartz sand stoving oven;
(5) quartz sand of oven dry is that dry quartz sand directly enters in the dry sand tank by the dry sand lift, with the cylinder sifting machine dry quartz sand is screened, the quartz sand of particle diameter in 0.425-0.85 millimeter scope is quartz fracturing sand, enters finished product quartz fracturing sand tank by rotary conveyor II.
The equipment of the production method of described manufacturing quartz fracturing sand special for oil field successively by lift, sand tank, screw sand washer, cylinder washed-out sand sifting machine, dewatering spiral sand washer, dehydration equipment, rotary conveyor I, process furnace, advance stove feeding unit, rotary type cylinder quartz sand stoving oven, dry sand lift, dry sand tank, cylinder sifting machine, rotary conveyor II, quartz fracturing sand tank and gauger and consist of.
Described its structure of cylinder washed-out sand sifting machine is comprised of motor, step-down gear, trommel screen and supporting base, making trommel screen main body rotation and horizontal plane angle by the supporting base support is 2～5 degree, by the driven by motor step-down gear, make trommel screen with certain rotating speed rotation, cooperate the flushing of the water column of water pipe outflow, quartz sand in the cylinder washed-out sand sifting machine is rubbed by the phase mutual friction, and the silt of removing attaching surface obtains cleaning clean washing quartz sand.Cylinder washed-out sand screening top is connected with water pipe, and blow tank inserts in the trommel screen.
The dewatering spiral sand washer is identical with the screw sand washer structure, model is: LX-750, it is procuring equipment, structure is: motor is connected with speed reduction unit by the wire belt, speed reduction unit is connected with turning axle, impeller after motor slows down by wire belt, speed reduction unit on the driven rotary axle slowly rotation cleans or dewaters, and the frame support leg tilts the screw sand washer main body, and rotation and horizontal plane angle are 5～15 degree.Water receiving pipe is not used for the clean quartz sand of water by stirring dry-cleaning and dehydration.
Described gauger 16 is tubular measuring containers of a charging and discharging interlocking, and gauger 16 is bolted on quartz fracturing sand tank 15 lower ends, is welded with going out below the sandpipe 15.1 of shrouding 15.2; Gauger tank body 16.2 lower ends are welded with lower end-plate 16.4, feed plate 16.1, reclaiming plate 16.5 and lower end-plate 16.4 are all concentric, the above is distributed with puts sand through hole and centre hole, feed plate 16.1 and reclaiming plate 16.5 are by connecting rod 16.3 and nut is fixed together and pass in lower end-plate 16.4 centre holes, form the relatively-stationary integral body in a feed plate 16.1 and reclaiming plate 16.5 positions, can be in 16.2 rotations of gauger tank body, the shrouding 16.4 and the gauger tank body 16.2 that separate are the separate components that are fixed together, handle 16.6 is welded on the reclaiming plate 16.5, and spacer pin 16.7 is welded on the gauger tank body 16.2.
Beneficial effect of the present invention and advantage:
1, be that the speed of shaking out is fast, the quartz fracturing sand special for oil field of warehouse-in was less than 1.5 hours from raw material quartz sand to packing.Per hour produce 7～9 tons of quartz fracturing sands.Existing production unit is taked open-air dehydration through the clean quartz sand of washing, generally need the time, and dehydration has impurity and enters in the quartz sand, causes secondary pollution, affects quality product, and is subjected to weather effect easily.The present invention adopts dehydration equipment, has solved dehydration problem, and the dehydration of production limit, limit only needed 25～30 minutes to finish dehydration, had improved industrial production efficiency, and had guaranteed final product quality.
2, therefore the present invention can not be subjected to the impact of weather, environment and seasonal variation with a whole set of factory building that moves into of production unit, thereby has greatly improved the utilization ratio of equipment and guaranteed the quality of product, can realize suitability for industrialized production.
Description of drawings:
The production unit synoptic diagram of Fig. 1 quartz fracturing sand.
Fig. 2 cylinder washed-out sand sifting machine structural representation.
The structural representation of Fig. 3 pressure break quartz sand tank 15 and gauger 16.
Among the figure: 1. lift; 2. sand tank; 3. screw sand washer, 3.1 blow tanks; 4. cylinder washed-out sand sifting machine, 4.1 motors, 4.2 step-down gears, 4.3 water pipes; 5. dewatering spiral sand washer; 6. dehydration equipment; 7. rotary conveyor I; 8. process furnace; 9. advance the stove feeding unit; 10. rotary type cylinder quartz sand stoving oven; 11. dry sand lift; 12. dry sand tank; 13. cylinder sifting machine; 14. rotary conveyor II; 15. the quartz fracturing sand tank, 15.1 go out sandpipe, 15.2 shroudings; 16. gauger, 16.1 gauger feed plates, 16.2 gauger tank bodies, 16.3 connecting rods, 16.4 times end-plates, 16.5 reclaiming plates, 16.6 spacing handles, 16.7 spacer pins.
Embodiment:
Content of the present invention is easier to be understood in order to make, some concepts at first are described: the quartz sand that the present invention relates to is a kind of quartzite of natural formation, its particle is little, be similar to and be spherical, in the middle of underground mining is out the time, be mingled with some finger stones and part earth, need to screen out finger stone and earth with sieve, become the raw material of processing, be " raw material quartz sand ", wash the wet quartz sand removed behind the earth that the raw material quartz sand surface adheres in the device fabrication process with water " washing quartz sand ", crying after the oven dry " dry quartz sand ", at this moment quartz sand endoparticle size is uneven, need to sieve large little with particle of degranulation with sieve, remaining is exactly standard compliant quartz sand, is called " quartz fracturing sand "." quartz sand " generally said is general reference, also is so usually to call in word in real work, but " quartz sand " said this moment, those presents know that its quartz sand must point to or residing state.
The below is described in further detail the present invention according to a particular embodiment of the invention and by reference to the accompanying drawings.
The specific embodiments of the invention synoptic diagram referring to Fig. 1, the equipment of the production method of described manufacturing quartz fracturing sand special for oil field successively by lift 1, sand tank 2, screw sand washer 3, cylinder washed-out sand sifting machine 4, dewatering spiral sand washer 5, dehydration equipment 6, rotary conveyor I 7, process furnace 8, advance stove feeding unit 9, rotary type cylinder quartz sand stoving oven 10, dry sand lift 11, dry sand tank 12, cylinder sifting machine 13, rotary conveyor II 14, quartz fracturing sand tank 15 and gauger 16 and consist of.
Described cylinder washed-out sand sifting machine 4 its structures are connected with step-down gear by motor 4.1, step-down gear is connected with cylinder by turning axle, drive rotary drum, cylinder washed-out sand sifting machine top is connected with water pipe, blow tank 3.1 inserts in the cylinder, the cylinder of cylinder washed-out sand sifting machine tilts by the supporting base of below, and rotation and horizontal plane angle are 2～5 degree.
Dewatering spiral washed-out sand 5 machines are identical with screw sand washer 3 structures, and water receiving pipe passes through to stir dry-cleaning for the clean quartz sand of water and dewaters, and slowly rotated by wire belt, the rear impeller of step-down gear deceleration by motor.
Described gauger 16 is tubular measuring containers of a charging and discharging interlocking, and gauger 16 is bolted on quartz fracturing sand tank 15 lower ends, is welded with going out below the sandpipe 15.1 of hole shrouding 15.2; Gauger tank body 16.2 lower ends are welded with lower end-plate 16.4, feed plate 16.1, reclaiming plate 16.5 and lower end-plate 16.4 are all concentric, the above is distributed with puts sand through hole and centre hole, feed plate 16.1 and reclaiming plate 16.5 are by connecting rod 16.3 and nut is fixed together and pass in lower end-plate 16.4 centre holes, form the relatively-stationary integral body in a feed plate 16.1 and reclaiming plate 16.5 positions, can be in 16.2 rotations of gauger tank body, the shrouding 16.4 and the gauger tank body 16.2 that separate are the separate components that are fixed together, handle 16.6 is welded on the reclaiming plate 16.5, and spacer pin 16.7 is welded on the gauger tank body 16.2.
The present invention at first chooses raw material quartz sand, qualified raw material quartz sand is mentioned in the sand tank 2 by equipment lifting machine 1, putting sand by sand tank 2 discharge ports slightly washes to screw sand washer 3 is interior, dust and silt by clear water flush away quartz sand surface, because the silt on surface is more, be difficult to fully clean, must wash by secondary, raw material quartz sand after once washing is transported in the cylinder washed-out sand sifting machine 4 by the blow tank 3.1 of screw sand washer 3, simultaneously referring to Fig. 2, cylinder washed-out sand sifting machine 4 can thoroughly be washed the silt of quartz sand surface off by self rotation and high pressure flushing with clean water, (FTU is FTU with pressure break quartz sand turbidity standard≤100FTU to reach the oil field, implication is the propping agent that adds certain mass in the distilled water of prescribed volume, through shake and place certain hour after the muddy degree of liquid.), the quartz sand turbidity after this invention is cleaned can reach 30～50FTU, and this moment, the quartz sand of wash clean was that " washing quartz sand " stirs by dewatering spiral sand washer 5, destroyed the steam layer that coats sand grain surface, dewatered; Be transported to again in the dehydration equipment 6 that main body rotation and level be the 20-40 degree and leave standstill dehydration in 10～20 minutes, its water content is dropped to below 20%, then by rotary conveyor I 7, advancing stove feeding unit 9 is transported in the rotary type cylinder quartz sand stoving oven 10 that is installed on the process furnace 8, process furnace 8 mainly is that rotary type cylinder quartz sand stoving oven 10 is heated, 10 pairs of quartz sands of rotary type cylinder quartz sand stoving oven through 25～30 minutes oven dry after, quartz sand after oven dry this moment is called " dry quartz sand ", dry quartz sand flows out from rotary type cylinder quartz sand stoving oven 10 discharge ports, enter in dry sand lift 11 opening for feeds, directly enter in the dry sand tank 12 by promoting, because the finished product quartz fracturing sand that the oil field is used directly has strict demand to sand grains, in 0.425-0.85 millimeter scope, so need to screen dry quartz sand, allow dry sand tank 12 interior quartz sands flow out from discharge port, screen by 13 pairs of dry quartz sands of cylinder sifting machine, satisfactory quartz sand enters by rotary conveyor II 14 and is called " quartz fracturing sand " in the quartz fracturing sand tank 15, the quartz sand that falls short of specifications screens out, quartz fracturing sand carries out the packing warehouse-in by gauger 16, and whole production process is finished.
Screw sand washer 3 water receiving pipes among the present invention just can carry out the function of washed-out sand, if water receiving pipe is not just finished the function of dewatering spiral sand washer 5.During screw sand washer work, impeller was slowly rotated after motor slowed down by wire belt, step-down gear, and sandstone is entered in the washing trough by feeding trough, under the drive of impeller, roll, and grind mutually, remove the impurity that covers the sandstone surface, destroy simultaneously the steam layer that coats sand grains, be beneficial to dehydration; Add simultaneously water, form powerful current, in time impurity and the little foreign matter of proportion are taken away, and discharge from the spillway washing trough, finish cleanup action.Clean sandstone is taken away by blade, and last sandstone is poured blow tank into from the impeller of rotation, finishes the cleanup action of sandstone.3 deslimings for quartz sand among the present invention, 5 are used for dehydration.
In production unit, washing quartz sand needs 20～30 minutes by dewatering spiral sand washer 5 and dehydration equipment 6, and through the acting in conjunction of stirring and dehydration equipment, water content drops to below 20%, has reached good dehydrating effect.After entering cylinder quartz sand stoving oven 9, can be dried fully after about 20～30 minutes, expected that from former the quartz fracturing sand production process only is 1.5 hours.Full production was calculated by 8 hours, can manufacture a finished product 50～70 tons of quartz sands of per tour.
Production method and automation degree of equipment thereof that the present invention makes quartz fracturing sand special for oil field are high; can be equipped with two electrical control cabinets; electrical control cabinet is to consumer: lift 1; screw sand washer 3; cylinder washed-out sand sifting machine 4; dewatering spiral sand washer 5; 7 of rotary conveyor I controls; No. two electrical control cabinets are to consumer: process furnace 8; rotary type cylinder quartz sand stoving oven 10; dry sand lift 11; cylinder sifting machine 13; 14 of rotary conveyor II controls; respectively two housings are operated by two people; and institute's operating device patrolled and examined, find that fault in time shuts down.One people controls the flame of cylinder quartz sand stoving oven 10, and the control bake out temperature guarantees the quartz sand oven dry.Three people can operate this complete equipment fully, finish the production of pressure break quartz sand.
Quartz sand after the dehydration recited above is by rotary conveyor 7 and advance the stove feeding unit, be transported in the rotary type cylinder quartz sand stoving oven 10, wherein advance stove feeding unit 9 and rotary type cylinder quartz sand stoving oven 10 all is installed on the process furnace 8, process furnace 8 is that rotary type cylinder quartz sand stoving oven 10 is heated.
Referring to Fig. 2, be screw sand washer 3 outlet and cylinder washed-out sand sifting machine 4 syndeton synoptic diagram of the present invention.The blow tank 3.1 of screw sand washer 3 inserts and connects cylinder washed-out sand sifting machine 4 upper end opening for feeds, its cylinder washed-out sand sifting machine 4 tilts main body by supporting base, axis on the supporting base is 5～15 degree as main body rotation and horizontal plane angle, rotating axis upper end connects motor 4.1 by step-down gear 4.2, driving step-down gear 4.2 by motor 4.1 rotates, make trommel screen fixing on the axis with certain rotating speed rotation, cooperate the flushing of the water column of water pipe 4.3 outflows, quartz sand in the cylinder washed-out sand sifting machine 4 is rubbed by the phase mutual friction, and the silt of removing attaching surface obtains cleaning clean washing quartz sand.There is discharge port cylinder washed-out sand sifting machine 4 lower ends.
Described gauger 16 is a measuring container, and charging and discharging interlocking by the blocking-up charging, is opened discharging, the quartz sand of quality such as emits in the measuring container and realizes metering, distributing, packaging.
As shown in Figure 3, be the syndeton synoptic diagram of pressure break quartz sand tank 15 of the present invention and gauger 16.Gauger 16 is tubular measuring containers of a charging and discharging interlocking, and gauger 16 is bolted pressure break quartz sand tank 15 lower ends, namely is fixed on to be welded with the going out below the sandpipe 15.1 of hole shrouding 15.2; The lower end-plate 16.4 of gauger tank body 16.2 lower ends welding, feed plate 16.1, reclaiming plate 16.5 and lower end-plate 16.4 are all concentric, the above is distributed with puts sand through hole and centre hole, feed plate 16.1 and reclaiming plate 16.5 are by connecting rod 16.3 and nut is fixed together and pass in lower end-plate 16.4 centre holes, form the relatively-stationary integral body in a feed plate 16.1 and reclaiming plate 16.5 positions, can rotate in other words rotating integral body at gauger tank body 16.2 simultaneously, but the shrouding 16.4 and the gauger tank body 16.2 that separate are the separate components that are fixed together.Handle 16.6 is welded on the reclaiming plate 16.5, is conducive to driving handle 16.6 and makes reclaiming plate 16.5 integral-rotations, and spacer pin 16.7 is welded on the gauger tank body 16.2, is used for the position of control reclaiming plate 16.5 rotations.
Specific works principle: in gauger 16, when pulling the limit point of a spacer pin 16.7 of gauger handle 16.6 arrival, through hole on the gauger feed plate 16.1 is communicated with through hole on the shrouding 15.2, but the through hole on the shrouding 16.4 that gauger tank body 16.2 lower ends are fixed and the lead to the hole site on the reclaiming plate 16.5 stagger, can not shake out, quartz sand enters gauger from pressure break quartz sand tank 15.When pulling again gauger handle 16.6 to another spacer pin 16.7 limit point, stagger in hole on the gauger 16 upper end feed plates 16.1 and the hole site on the shrouding 15.2, can not advance sand, but the hole on 16.2 times end-plates 16.4 of gauger tank body is communicated with the hole on the reclaiming plate 16.5, quartz sand is emitted in gauger tank body 16.2, discharges to be to calculate the weight.In like manner, when again pulling gauger handle 16.6 and getting back to spacer pin 16.7, quartz sand enters again gauger tank body 16.2, and iterative cycles like this is realized the metering, distributing, packaging of quartz sands by pulling handle 16.6.By the blocking-up charging, open discharging, the quartz sand of quality such as emit in the measuring container and realize metering, distributing, packaging.
Claims (5)
1. production method of making quartz fracturing sand special for oil field is characterized in that:
(1) raw material quartz sand is slightly washed by sand tank inflow screw sand washer by lift;
(2) be transported to through the quartz sand of slightly washing and carry out secondary washing in the cylinder washed-out sand sifting machine, reach turbidity standard≤100FTU;
(3) the washing quartz sand of wash clean stirs by the dewatering spiral sand washer again, destroys the steam layer that coats sand grain surface, dry-cleans and dewaters;
(4) be transported to again in the dehydration equipment that level and main body rotation be the 20-40 degree and leave standstill dehydration, its water content is dropped to below 20%, 20～30 minutes time;
(5) quartz sand after the dehydration is transported in the rotary type cylinder quartz sand stoving oven by the rotary conveyor I, and body of heater is heated to 90～120 ℃, and quartz sand is dried through 25～30 minutes heating in rotary type cylinder quartz sand stoving oven;
(6) quartz sand of oven dry is that dry quartz sand directly enters in the dry sand tank by the dry sand lift, with the cylinder sifting machine dry quartz sand is screened again, the quartz sand of particle diameter in 0.425-0.85 millimeter scope is that quartz fracturing sand enters finished product quartz fracturing sand tank by the rotary conveyor II, and the finished product quartz fracturing sand carries out the packing warehouse-in by gauger.
2. the production method of manufacturing quartz fracturing sand special for oil field according to claim 1 is characterized in that:
Described screw sand washer (3) and dewatering spiral sand washer (5) are the equipment of same structure, its structure is motor and slowly rotates by wire belt, the rear impeller of step-down gear deceleration, difference is to be connected with water receiving pipe (4.3) on the former screw sand washer (3) to be mainly used in the desliming of raw material quartz sand and slightly to wash, and latter's dewatering spiral sand washer (5) not water receiving pipe is mainly used in quartz sand that intermediate water cleans again by stirring dry-cleaning and dehydration.
3. the production method of manufacturing quartz fracturing sand special for oil field according to claim 1, it is characterized in that: the blow tank (3.1) of described screw sand washer (3) inserts in cylinder washed-out sand sifting machine (4) cylinder, the supporting base that cylinder washed-out sand sifting machine (4) connects by the below tilts its main body, rotation and horizontal plane angle are 2～5 degree, connect step-down gear (4.2) by motor (4.1) output, step-down gear (4.2) output connects cylinder washed-out sand sifting machine (4) and rotates, but the quartz sand that the phase mutual friction is rubbed passes through the flushing of the pressure water column of water pipe (4.3) outflow simultaneously, and the silt of removing attaching surface obtains cleaning clean washing quartz sand.
4. the production method of manufacturing quartz fracturing sand special for oil field according to claim 1, it is characterized in that: the quartz sand after the described dehydration is by rotary conveyor (7) and advance stove feeding unit (9) and be transported in the rotary type cylinder quartz sand stoving oven (10), wherein advance stove feeding unit (9) and rotary type cylinder quartz sand stoving oven (10) and all be installed on the process furnace (8), process furnace (8) is that rotary type cylinder quartz sand stoving oven (10) is heated.
5. the production method of manufacturing quartz fracturing sand special for oil field according to claim 1, it is characterized in that: described gauger (16) is the tubular measuring container of a charging and discharging interlocking, gauger (16) is bolted pressure break quartz sand tank (15) lower end, namely is fixed on and is welded with the going out below the sandpipe (15.1) of hole shrouding (15.2); The lower end-plate (16.4) of gauger tank body (16.2) lower end welding, feed plate (16.1), reclaiming plate (16.5) and lower end-plate (16.4) are all concentric, the above is distributed with puts sand through hole and centre hole, feed plate (16.1) and reclaiming plate (16.5) are by connecting rod (16.3) and nut is fixed together and pass in lower end-plate (16.4) centre hole, form the relatively-stationary integral body in a feed plate (16.1) and reclaiming plate (16.5) position, can rotate in other words rotating integral body at gauger tank body (16.2) simultaneously, but the shrouding (16.4) and the gauger tank body (16.2) that separate are the separate components that is fixed together, handle (16.6) is welded on the reclaiming plate (16.5), be conducive to driving handle (16.6) and make reclaiming plate (16.5) integral-rotation, spacer pin (16.7) is welded on the gauger tank body (16.2), is used for the position of control reclaiming plate (16.5) rotation.
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| CN103736687B (en) * | 2014-01-17 | 2015-09-16 | 安徽科技学院 | A kind of cleaning device for quartz sand |
| CN106566524A (en) * | 2016-11-03 | 2017-04-19 | 重庆长江造型材料（集团）股份有限公司 | Preparation process for quartz sand fracturing proppant |
| CN106753317A (en) * | 2016-11-21 | 2017-05-31 | 四川南联环资科技股份有限公司 | A kind of method that utilization quartz tail sand produces oil well proppant |
| CN107325807A (en) * | 2017-08-04 | 2017-11-07 | 广汉川亿石油科技有限公司 | A kind of production equipment for manufacturing quartz fracturing sand special for oil field |
| CN109593520B (en) * | 2019-01-30 | 2021-08-03 | 刘红英 | Quartz sand for fracturing propping agent and preparation method and application thereof |
| CN110449253B (en) * | 2019-08-29 | 2021-12-03 | 重庆长江造型材料（集团）股份有限公司 | Processing technology of quartz sand fracturing propping agent |
| CN110510616A (en) * | 2019-09-24 | 2019-11-29 | 河南银旺实业有限公司 | A kind of production technology of pressure break quartz sand |
| CN111927419A (en) * | 2020-08-07 | 2020-11-13 | 江苏火焰山干燥技术有限公司 | Fracturing sand deep processing technology |
| CN112980423A (en) * | 2021-02-23 | 2021-06-18 | 洲际海峡能源科技有限公司 | Quartz sand proppant production method and system |
| CN115216287A (en) * | 2022-08-08 | 2022-10-21 | 陕西化工研究院有限公司 | Process for reducing turbidity of petroleum fracturing propping agent |
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