CN119175060A - Production equipment and production method of high-salt-tolerance drag reducer for fracturing - Google Patents

Abstract

The invention provides production equipment and a production method of a high-salt-tolerance drag reducer for fracturing, belongs to the technical field of petrochemical industry, and solves the technical problems that the high-salt-tolerance drag reducer cannot be uniformly fed and mixed at present, the integrated production of multiple procedures cannot be realized, and the production efficiency of the drag reducer is low. The utility model provides a production facility of high salt tolerance drag reducer for fracturing, includes the heating cylinder, and the feed port has been run through to the outer wall of heating cylinder, and the outer wall fixedly connected with guide ring of heating cylinder to the outer wall of heating cylinder is located the outside of feed port, and the feed port has been seted up on the surface of guide ring. According to the invention, the material guide ring is connected to the outer wall of the heating cylinder, under the action of the material guide ring surface rotating and connecting the material box, the material box can drive the components in the component A and the component B to alternately feed the materials into the heating cylinder, and under the action of the transmission mixing unit, the rotating sleeve plate can synchronously and uniformly mix the materials in the heating cylinder during rotation.

Description

Production equipment and production method of high-salt-tolerance drag reducer for fracturing

Technical Field

The invention belongs to the technical field of petrochemical industry, relates to production equipment of a high-salt-tolerance drag reducer, and particularly relates to production equipment of a high-salt-tolerance drag reducer for fracturing and a production method thereof.

Background

In the oilfield yield increasing operation, the fracturing fluid is conveyed to a drilling position with the depth of about 500-6000 m or deeper by a pump under the conditions of high pressure and high flow rate to cause the rock stratum around the borehole to crack, and the drag reducer is a reagent capable of reducing the resistance of fluid in conveying, is mostly water-soluble or oil-soluble high-molecular polymer, and has higher and higher requirements on the cement slurry performance for well cementation along with the development of oilfield well cementation technology, and the drag reducer reduces the resistance in the migration process by increasing the viscosity, reducing turbulence and the like in the fracturing fluid, so the use effect of the fracturing fluid is directly influenced by the advantages and disadvantages of the drag reducer.

At present, the purpose layer of fracturing is increasingly complex, so that the requirement on the required drag reducer is higher and higher, the drag reducer used in the fracturing construction is required to have certain compressive strength and toughness, and also has certain salt tolerance, so that the drag reducer can be finally discharged back out of a stratum, the common drag reducer comprises polyacrylamide type, natural macromolecule type and surface active agent type, emulsion type polyacrylamide has pertinence, different water qualities need different emulsions, the price is high, the consumption is high, the content of gel breaking liquid residues after the natural macromolecule type fracturing is high, the damage to a hypotonic layer is large, the use of the drag reducer is limited, the surface active agent type needs more compatibility aids, the toxicity is strong, and the long-term use can cause water quality pollution.

According to the search, as disclosed in Chinese patent literature, a salt-tolerant and salt-resistant instant drag reducer for oilfield fracturing and a preparation method thereof are disclosed [ application number: CN202111319348.3 ], publication number: CN113880992A ], wherein the drag reducer is prepared by polymerizing a component A and a component B through an initiator, the component A comprises polyethylene oxide, polyacrylamide, acrylic acid, polyisobutylene, organosilicon, polyimide, allyl resin, amino resin, water and aliphatic mercaptan, and the component B comprises monoalkyl phosphate, polyvinyl acetate, isopropanol, benzyl alcohol, sodium acryloxyisopentene sulfonate, hexachlorocyclotriphosphazene and phosphonitrile trichloride.

The salt-resistant instant drag reducer for oilfield fracturing disclosed in the patent is characterized in that the polymerization of the component A and the component B is initiated by using an initiator, so that the preparation process is optimized, the obtained drag reducer is more soluble in water, has the advantages of salt resistance, salt resistance and easy dissolution, and is suitable for oilfield fracturing, but the drag reducer for fracturing needs continuous feeding and mixing of users in a reaction kettle during production, is waiting for forming and solidification at room temperature, and easily causes the components to be accumulated in the reaction kettle, so that the components are unevenly mixed, the reaction effect of the components is influenced, the room temperature forming time is longer, the batch production is inconvenient, and the processing cost is increased.

Disclosure of Invention

The invention aims at solving the problems in the prior art, and provides production equipment and a production method of a high-salt-tolerance drag reducer for fracturing, wherein the technical problems to be solved by the invention are as follows: and the high salt-tolerant drag reducer is uniformly fed and mixed, the integrated production is realized, and the production efficiency of the high salt-tolerant drag reducer is improved.

The aim of the invention can be achieved by the following technical scheme:

the production equipment of the high salt-tolerant drag reducer for fracturing comprises a heating cylinder, wherein a feeding hole is formed in the outer wall of the heating cylinder in a penetrating mode, a guide ring is fixedly connected to the outer wall of the heating cylinder, the outer wall of the heating cylinder is located at the outer side of the feeding hole, a feeding hole is formed in the surface of the guide ring, and a material box is connected to the surface of the feeding hole in a rotating mode;

The outer wall of the material box is fixedly connected with a sleeve rotating plate, the inner wall of the sleeve rotating plate is fixedly connected with a fixing plate, the inside of the fixing plate is rotationally connected with a first gear plate, the first gear plate is driven by an electric motor, the outer wall of the first gear plate is connected with a gear ring in a meshed manner, and the gear ring is fixedly arranged on the outer wall of the heating cylinder;

the inner top wall of the rotating sleeve plate is fixedly connected with a rotating rod, and the bottom end of the rotating rod is connected with a transmission mixing unit;

The bottom of the heating cylinder is provided with a conveying and drying unit, and one end of the conveying and drying unit, which is far away from the heating cylinder, is connected with a crushing unit.

The invention has the working principle that the components A with different weight parts are respectively added into the material boxes, the two material boxes are respectively used for sorting and feeding the components A and the components B by arranging a plurality of material sorting cavities in the material boxes, the outer walls of the material boxes are fixedly connected with a rotating sleeve plate, under the electrifying effect of an electric motor, a first gear plate is rotated, the outer walls of the heating drums are fixedly arranged on the gear rings, the first gear plate is rotated on the outer walls of the gear rings, the rotating sleeve plate is rotated on the inner walls of the heating drums, the rotating sleeve plate drives the two material boxes to rotate on the surfaces of the material guide rings, the material in the material sorting cavities is fed into the inside of the heating drums by arranging the material holes at the bottom ends of the material boxes to the corresponding positions of the material sorting cavities, the material boxes and the material boxes are uniformly added into the inside of the heating drums by arranging the material boxes, simultaneously, under the effect of fixedly connecting the rotating rod at the inner tops of the rotating sleeve plate, the main gear plate is driven to rotate, the outer walls of the main gear are driven to rotate, the material boxes are meshed with the plurality of the heating drums by the rotating shafts, the mixing rods are driven to be mixed by the rotating shafts, the mixing rods are driven to rotate at the same time, the inner sides of the heating drums are contacted with the heating drums, the inner sides of the heating shafts are driven to realize the mixing effect is realized, and the mixing effect is realized by rotating and the mixing rods are simultaneously by rotating the mixing shafts through the mixing shafts, and the mixing shafts are arranged at the inner sides and the inner sides, be convenient for roll the material on conveyer belt surface flat to set up under the effect of heated roll in the conveyer belt bottom, make the conveyer belt can dry the material when carrying the material, end-to-end connection at the conveyer belt has broken unit, then makes the material directly get into broken case after carrying, and through the transmission of synchronizing wheel and hold-in range, then make movable rod drive crushing roller rotation, through the tip fixed connection second toothed disc at two movable rods, then make two crushing rollers rotate in opposite directions, realized carrying out high-efficient crushing to the drag reducer that solidifies the piece, the user of being convenient for collects the drag reducer granule after smashing in the bottom of smashing the case.

The outer wall of the heating cylinder is fixedly connected with two guide rings, the guide rings are arranged in parallel, and the inner sides of the two guide rings are provided with feed holes;

the two feed holes are symmetrically formed in the left side and the right side of the heating cylinder, and the two feed holes are respectively formed in the upper portion and the lower portion of the heating cylinder.

By adopting the structure, through the arrangement of the two guide rings, various components can be added into the heating cylinder in turn, and the stability of the material adding inside the heating cylinder is realized under the action of the feeding holes on the two sides of the heating cylinder, so that the material stacking inside the heating cylinder is avoided.

The sleeve rotating plate is connected to the outer wall of the heating cylinder in a sliding manner;

the top end of the sleeve plate is provided with a plurality of through holes, and the through holes are correspondingly arranged with the charging holes.

By adopting the structure, through the setting of the rotating sleeve plate, the rotating sleeve plate is convenient to drive two material boxes to rotate on the outer wall of the heating cylinder, and through the setting of the through holes, the material adding to the inside of the material boxes through the feeding holes is convenient for a user, and the recycling of production equipment is facilitated.

The surfaces of the two guide rings are both connected with a material box in a sliding manner, and the material box is arranged in an annular structure;

The inside separation of magazine is provided with a plurality of feed divider chambeies, and the charge door has all been seted up on the top of every feed divider chamber to the feed passage hole has all been seted up to the bottom of every feed divider chamber.

By adopting the structure, through the inside of seting up a plurality of feed distribution cavities at the magazine, then make two magazines carry out categorised material feeding respectively to the material, ensured the variety to the inside material loading of heating cylinder, the equipment of being convenient for satisfies different production demands, the practicality is strong.

The outer wall fixedly connected with electric motor's of first toothed disc output, and electric motor fixed mounting is at the surface of fixed plate.

By adopting the structure, through the arrangement of the electric motor, the first gear disc is enabled to rotate stably, the first gear disc is convenient to drive the sleeve plate to rotate on the outer wall of the heating cylinder, and meanwhile, the rotating effect of the material box on the surface of the material guiding ring is ensured.

The transmission mixing unit comprises a main gear, the main gear is fixedly connected to the bottom end of the rotating rod, a plurality of auxiliary gears are connected to the outer wall of the main gear in a ring-shaped meshing manner, an inner gear ring is sleeved on the outer walls of the plurality of auxiliary gears in a meshing manner, and the inner gear ring is fixedly connected to the inner wall of the heating cylinder;

the outer wall of the rotating rod is fixedly connected with a rotating frame, and a plurality of driven gears rotate in the rotating frame;

The bottom fixedly connected with puddler of master gear, and the periphery annular of puddler distributes there is a plurality of puddlers, and a plurality of puddlers are fixed mounting respectively in the bottom of a plurality of slave gears.

By adopting the structure, through the outer wall meshing connection of the main gear and the plurality of slave gears, under the effect of the inner side of the rotating frame, the main gear drives the stirring rod to rotate in the heating cylinder, and simultaneously, the plurality of slave gears drive the mixing rod to rotate and rotate on the periphery of the stirring rod, so that the efficient mixing of materials in the heating cylinder is realized.

The bottom outer wall fixedly connected with first bevel gear of puddler, and the bottom annular meshing of first bevel gear is connected with a plurality of second bevel gears, one side fixedly connected with guide bar of second bevel gear, and the one end that the guide bar kept away from the second bevel gear rotates to be connected in the bottom of heating cylinder to the guide bar is perpendicular with the puddler and distributes.

By adopting the structure, through setting up first bevel gear in the bottom of puddler, under the meshing effect of first bevel gear and second bevel gear, then make the guide bar can carry out horizontal rotation in the bottom, be convenient for evenly guide the surface to the conveyer belt with the material after mixing, set up through the perpendicular of guide bar and puddler moreover, further improved the inside mixing effect of heating cylinder, simultaneously effectual drive resource of having practiced thrift.

The conveying and drying unit comprises a receiving hopper which is fixedly connected to the bottom end of the heating cylinder, a conveying frame is fixedly connected to the bottom end of the receiving hopper, conveying wheels are rotatably connected to the two ends of the conveying frame, one conveying wheel is driven by a driving motor, and the other conveying wheel is connected with a crushing unit in a transmission manner;

the outer wall of the conveying wheel is sleeved with a conveying belt in a meshed mode, a fixed cover is arranged above the conveying belt and fixedly installed at the top end of the conveying frame, a plurality of heating rollers are fixedly installed in the conveying frame, and the heating rollers are located at the bottom end of the conveying belt;

The inner top wall of the fixed cover is fixedly connected with a reset spring, the bottom end of the reset spring is fixedly provided with a mounting frame, the inside of the mounting frame is rotationally connected with a rotating roller, the outer wall of the rotating roller is fixedly connected with a heating rod, and the heating rod is positioned above the conveying belt;

the top fixedly connected with of mounting bracket is a plurality of gag levers, and the outer wall cover of gag lever levers is equipped with reset spring.

By adopting the structure, the materials inside the heating cylinder can be directly dried after being mixed, and under the action of the heating rods and the heating rollers, the materials are efficiently dried in the conveying process, so that the processing efficiency of the drag reducer is improved, the drag reducer to be molded is conveniently extruded above through the telescopic arrangement of the heating rods, the drying efficiency is improved, and the drying device is simple in structure and high in practicability.

The crushing unit comprises a first synchronous wheel, the first synchronous wheel is fixedly arranged at one end of the conveying wheel, the outer wall of the first synchronous wheel is connected with a synchronous belt in a meshed manner, the inner wall of the bottom of the synchronous belt is connected with a second synchronous wheel in a meshed manner, a movable rod is fixedly arranged in the second synchronous wheel, and the outer side of the movable rod is rotatably connected with a crushing box;

Two movable rods are arranged in parallel in the crushing box, the outer ends of the two movable rods are fixedly connected with second gear plates, the two second gear plates are in meshed connection, and the second gear plates are positioned on the outer side of the crushing box;

The outer walls of the movable rods are fixedly connected with crushing rollers, and the two crushing rollers are meshed in the crushing box in a staggered manner;

the top fixedly connected with guide hopper of smashing the case, and the top fixedly connected with carriage of guide hopper, the top surface fixed mounting of guide hopper has the sealed cowling, and the one end fixedly connected with fixed cover of sealed cowling.

By adopting the structure, through the transmission of the synchronizing wheel and the synchronous belt, the movable rods drive the crushing rollers to rotate, and the two crushing rollers rotate in opposite directions through the second gear plate fixedly connected with the end parts of the two movable rods, so that the efficient crushing of the solidified and agglomerated drag reducer is realized, the synchronism is high, and the integrated crushing of the dried drag reducer is facilitated.

The production method of the high-salt-tolerance drag reducer for fracturing is applied to production equipment of the high-salt-tolerance drag reducer for fracturing, and comprises the following steps of:

S1, preparing a component A, namely adding the component A with different parts by weight into a material box in a classified manner, wherein the component A comprises 33-42 parts of acrylamide, 15-23 parts of methyl methacrylate, 8-12 parts of hexadecylacrylamide, 30-35 parts of water and 7-11 parts of phosphoglyceride;

S2, preparing a component B, namely adding the components B with different parts by weight into a material box in a classified manner, wherein the component B comprises 21-35 parts of polyvinylpyrrolidone, 8-14 parts of sodium hydroxide, 20-26 parts of sodium dodecyl sulfate, 13-18 parts of ammonium sulfate, 15-22 parts of sodium bisulfite and 12-16 parts of azo diisobutylamidine hydrochloride;

s3, uniformly adding the component A and the component B into the heating cylinder through the transmission mixing unit, stirring, and heating to 63-75 ℃ to uniformly react;

s4, conveying and heating, namely controlling the heating temperature of the mixed pasty mixture to be 82-94 ℃, and drying by a conveying and drying unit after keeping the temperature for 1-5 hours;

s5, crushing the tail end, namely crushing and grinding the solidified block-shaped mixture at the tail end of the conveying belt through a crushing unit, and collecting crushed drag reducer particles.

Compared with the prior art, the production equipment and the production method of the high-salt-tolerance drag reducer for fracturing have the following advantages:

1. According to the invention, the material guide ring is connected to the outer wall of the heating cylinder, the material box can drive the components in the component A and the component B to alternately feed the materials into the heating cylinder under the action of the material guide ring surface rotating connection material box, and under the action of the transmission mixing unit, the rotating sleeve plate can synchronously uniformly mix the materials in the heating cylinder during rotation, so that the mixing effect of the component A and the component B is ensured, the reaction efficiency of the materials is improved, the material subjected to mixing reaction is effectively dried in the conveying process through the connection of the bottom of the heating cylinder, compared with the existing room temperature standing, the production efficiency is greatly improved, the integrated processing of the high-salt-tolerance drag reducer is realized, the formed and solidified high-salt-tolerance drag reducer is conveniently and directly crushed through the connection of the crushing unit at the other end of the conveying belt, the subsequent collection of the high-salt-tolerance drag reducer by a user is facilitated, the processing efficiency and the integrated production of the high-salt-tolerance drag reducer are ensured, and the structure is compact, and the popularization and the utilization are facilitated.

2. According to the invention, under the action of the first bevel gear fixedly arranged at the bottom of the stirring rod, the plurality of second bevel gears are connected on the surface of the first bevel gear in a meshed manner, so that the plurality of material guide rods synchronously rotate at the bottom of the heating cylinder, and through vertical release of the material guide rods and the stirring rod, the multidirectional material mixing in the heating cylinder is realized, the accurate conveying of the materials in the heating cylinder to the surface of the conveying belt is facilitated, the drying unit is convenient for drying and solidifying the uniformly mixed materials, and the integrated processing of the drag reducer is realized.

3. According to the invention, through the arrangement of the conveying and drying unit, under the action of the length of the conveying belt, the materials are efficiently dried in the conveying process by arranging the heating rods and the heating rollers on the upper and lower sides of the conveying belt respectively, so that the materials are solidified and formed on the surface of the conveying belt, the processing efficiency of the drag reducer is improved, and the drag reducer to be formed is conveniently extruded above through the telescopic arrangement of the heating rods, so that the shaping of the materials is facilitated, the drying efficiency is improved, and the structure is simple and the practicability is strong.

4. According to the invention, the crushing unit is connected at one end of the conveying wheel in a transmission way, so that the conveying belt can directly move the dried and solidified high-salt-tolerance drag reducer into the crushing box, synchronous crushing of the crushing roller is facilitated, driving resources are effectively saved through arrangement of the synchronous belt and the synchronous wheel, synchronization and consistency of the conveying and drying unit and the crushing unit are realized, running processing of the high-salt-tolerance drag reducer is facilitated, production efficiency of the high-salt-tolerance drag reducer is greatly improved, and production cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the construction of an apparatus for producing a highly salt-tolerant drag reducer for fracturing of the present invention;

FIG. 2 is a schematic diagram of a connection structure between a heating cylinder and a rotor plate in the invention;

FIG. 3 is a schematic cross-sectional view of a heater cartridge and a rotor plate according to the present invention;

FIG. 4 is a schematic cross-sectional view of a heating cylinder and a transmission mixing unit in the invention;

FIG. 5 is a schematic top view of the drive mixing unit of the present invention;

FIG. 6 is a schematic perspective view of a cartridge according to the present invention;

FIG. 7 is a schematic top view of a cartridge according to the present invention;

FIG. 8 is a schematic cross-sectional view of a transfer plate and gear ring of the present invention;

Fig. 9 is a schematic view showing a partial sectional structure of a conveying and drying unit according to the present invention;

FIG. 10 is a schematic diagram of the structure of the conveying and drying unit and the crushing unit in the present invention;

FIG. 11 is a schematic view of the structure of the movable rod and the crushing roller in the present invention;

FIG. 12 is a table of performance tests for highly salt tolerant drag reducers of the present invention.

In the figure, 1, a heating cylinder, 2, a feeding hole, 3, a guide ring, 4, a feeding hole, 5, a material box, 6, a feeding hole, 7, a material through hole, 8, a rotating sleeve plate, 9, a penetrating hole, 10, a fixed plate, 11, a first gear disc, 12, an electric motor, 13, a gear ring, 14, a rotating rod, 15, a main gear, 16, a rotating frame, 17, a slave gear, 18, an inner gear ring, 19, a stirring rod, 20, a mixing rod, 21, a first bevel gear, 22, a second bevel gear, 23, a guide rod, 24, a receiving hopper, 25, a conveying frame, 26, a conveying wheel, 27, a conveying belt, 28, a fixed cover, 29, a heating roller, 30, a reset spring, 31, a mounting frame, 32, a rotating roller, 33, a heating rod, 34, a limiting rod, 35, a first synchronous wheel, 36, a synchronous belt, 37, a second synchronous wheel, 38, a movable rod, 39, a crushing roller, 40, a second gear disc, 41, a crushing box, 42, a guide hopper, 43, a motor, a sealing cover and a driving device.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Embodiments of high salt-tolerant drag reducer production equipment for fracturing:

As shown in fig. 1 to 12, the present embodiment provides a specific example of a production apparatus of a high salt-tolerant drag reducer for fracturing, which is specifically implemented as follows:

The production equipment of the high salt resistance drag reducer for fracturing comprises a heating cylinder 1, a feeding hole 2, a guide ring 3, a feeding hole 4, a material box 5, a feeding hole 6, a material through hole 7, a rotating sleeve plate 8, a penetrating hole 9, a fixed plate 10, a first gear disc 11, an electric motor 12, a gear ring 13, a rotating rod 14, a main gear 15, a rotating frame 16, a slave gear 17, an inner gear ring 18, a stirring rod 19, a mixing rod 20, a first bevel gear 21, a second bevel gear 22, a guide rod 23, a receiving hopper 24, a conveying frame 25, a conveying wheel 26, a conveying belt 27, a fixed cover 28, a heating roller 29, a reset spring 30, a mounting frame 31, a rotating roller 32, a heating rod 33, a limiting rod 34, a first synchronous wheel 35, a synchronous belt 36, a second synchronous wheel 37, a movable rod 38, a crushing roller 39, a second gear disc 40, a crushing box 41, a guide hopper 42, a cover 43 and a driving motor 44, the outer wall of the heating cylinder 1 is penetrated and provided with a feed hole 2, the outer wall of the heating cylinder 1 is fixedly connected with a guide ring 3, the outer wall of the heating cylinder 1 is positioned at the outer side of the feed hole 2, the outer wall of the heating cylinder 1 is fixedly connected with two guide rings 3, the guide rings 3 are arranged in parallel, the inner sides of the two guide rings 3 are provided with the feed holes 2, the two feed holes 2 are symmetrically arranged at the left side and the right side of the heating cylinder 1, the two feed holes 2 are respectively arranged above and below the heating cylinder 1, by the arrangement of the two guide rings 3, multiple components can be added into the heating cylinder 1 in turn, and under the action of the feed holes 2 arranged at the two sides of the heating cylinder 1, the stability of feeding the inside of the heating cylinder 1 is realized, the accumulation of materials in the heating cylinder 1 is avoided, meanwhile, the surface of the guide rings 3 is provided with a feed hole 4, the surface of the feed hole 4 is rotationally connected with a feed box 5, the surfaces of the two guide rings 3 are both in sliding connection with a material box 5, the material box 5 is arranged in an annular structure, a plurality of material distributing cavities are arranged in the material box 5 in a separated mode, a charging hole 6 is formed in the top end of each material distributing cavity, a through hole 7 is formed in the bottom end of each material distributing cavity, the through holes 7 are correspondingly formed in the surface of the charging hole 4, and the material is conveniently charged into the heating cylinder 1 when each material distributing cavity rotates to the surface of the charging hole 4;

The outer wall of the material box 5 is fixedly connected with a rotating sleeve plate 8, the rotating sleeve plate 8 is slidably connected to the outer wall of the heating cylinder 1, a plurality of through holes 9 are formed in the top end of the rotating sleeve plate 8, the through holes 9 are correspondingly formed with the charging holes 6, the rotating sleeve plate 8 is convenient to drive the two material boxes 5 to rotate on the outer wall of the heating cylinder 1 through the arrangement of the rotating sleeve plate 8, the user can conveniently charge the material boxes 5 through the charging holes 6, recycling of production equipment is facilitated, the inner wall of the rotating sleeve plate 8 is fixedly connected with a fixed plate 10, the inner part of the fixed plate 10 is rotationally connected with a first gear disc 11, the first gear disc 11 is driven by an electric motor 12, the outer wall of the first gear disc 11 is fixedly connected with the output end of the electric motor 12, the electric motor 12 is fixedly arranged on the surface of the fixed plate 10, the first gear disc 11 is enabled to rotate stably under the action of the electric motor 12, the first gear disc 11 is convenient to drive the rotating sleeve plate 8 to rotate on the outer wall of the heating cylinder 1, meanwhile, the material guide ring 5 is enabled to rotate on the outer wall of the heating cylinder 1, and the first gear disc 13 is enabled to be meshed with a fixed ring 13, and the effect of the first gear disc 3 is guaranteed to be meshed with the outer wall of the heating cylinder 1;

In this embodiment, the inner roof of change board 8 fixedly connected with bull stick 14, and the bottom of bull stick 14 is connected with transmission compounding unit, transmission compounding unit is including master gear 15, and master gear 15 fixed connection is in the bottom of bull stick 14, the outer wall annular meshing of master gear 15 is connected with a plurality of slave gears 17, the meshing is connected with ring gear 18 in the outer wall cover of a plurality of slave gears 17, and ring gear 18 fixed connection is at the inner wall of heating section of thick bamboo 1, the outer wall fixedly connected with revolving rack 16 of bull stick 14, and the inside rotation of revolving rack 16 has a plurality of slave gears 17, the bottom fixedly connected with puddler 19 of master gear 15, and the periphery annular distribution of puddler 19 has a plurality of puddler 19, a plurality of puddler 19 respectively fixed mounting is in the bottom of a plurality of slave gears 17, through such setting, then make change the cover board 8 when the outer wall rotation of heating section of thick bamboo 1, under the effect of slave gear 17 rotation connection in the revolving rack 16 inboard, then make master gear 15 drive puddler 19 at the inside rotation of heating section of thick bamboo 1, simultaneously, a plurality of slave gears 17 drive ingredient 20 and carry out rotation in the circumference at the puddler 19, and the inside rotation 1 is realized, and the cost is high-efficient is realized, and mixing efficiency is inside the mixing drum is realized.

The outer wall of the bottom of the stirring rod 19 is fixedly connected with a first bevel gear 21, the bottom end of the first bevel gear 21 is in annular meshing connection with a plurality of second bevel gears 22, one side of each second bevel gear 22 is fixedly connected with a material guide rod 23, one end, far away from each second bevel gear 22, of each material guide rod 23 is rotationally connected to the bottom of the heating cylinder 1, the material guide rods 23 and the stirring rods 19 are vertically distributed, and under the meshing effect of the first bevel gear 21 and the second bevel gears 22, the material guide rods 23 can transversely rotate at the bottom, so that mixed materials can be conveniently and uniformly guided to the surface of the conveying belt 27, and the mixing effect inside the heating cylinder 1 is further improved through the vertical arrangement of the material guide rods 23 and the stirring rods 19, and meanwhile, driving resources are effectively saved;

In the embodiment, a conveying and drying unit is arranged at the bottom end of a heating cylinder 1, one end of the conveying and drying unit far away from the heating cylinder 1 is connected with a crushing unit, specifically, the conveying and drying unit comprises a receiving hopper 24, the receiving hopper 24 is fixedly connected with the bottom end of the heating cylinder 1, the bottom end of the receiving hopper 24 is fixedly connected with a conveying frame 25, two ends of the conveying frame 25 are rotatably connected with conveying wheels 26, one conveying wheel 26 is driven by a driving motor 44, the other conveying wheel 26 is connected with the crushing unit in a transmission manner, the outer wall of the conveying wheel 26 is meshed with a conveying belt 27, a fixed cover 28 is arranged above the conveying belt 27, the fixed cover 28 is fixedly arranged at the top end of the conveying frame 25, a plurality of heating rollers 29 are fixedly arranged in the conveying frame 25, the heating rollers 29 are positioned at the bottom end of the conveying belt 27, and a reset spring 30 is fixedly connected with the inner top wall of the fixed cover 28, the bottom end of the reset spring 30 is fixedly provided with the mounting frame 31, the top end of the mounting frame 31 is fixedly connected with a plurality of limit rods 34, the outer wall of the limit rods 34 is sleeved with the reset spring 30, the inside of the mounting frame 31 is rotationally connected with the rotating roller 32, the outer wall of the rotating roller 32 is fixedly connected with the heating rod 33 and the heating rod 33 is positioned above the conveying belt 27, through the arrangement, materials in the heating cylinder 1 can be directly dried after being mixed, under the action of the heating rod 33 and the heating roller 29 which are respectively arranged above and below the conveying belt 27, the materials are effectively dried in the conveying process, the processing efficiency of the damping agent is improved, and under the elastic action of the reset spring 30, the heating rod 33 is automatically stretched, the damping agent to be shaped is conveniently extruded above, the drying efficiency is favorably improved, and the structure is simple, and the practicability is strong.

In this embodiment, the crushing unit includes a first synchronizing wheel 35, the first synchronizing wheel 35 is fixedly installed at one end of the conveying wheel 26, the outer wall of the first synchronizing wheel 35 is in meshed connection with a synchronous belt 36, the inner wall of the bottom of the synchronous belt 36 is in meshed connection with a second synchronizing wheel 37, a movable rod 38 is fixedly installed in the second synchronizing wheel 37, through the arrangement, the movable rod 38 can be synchronously driven by the conveying belt 27 during rotation conveying, so that the drag reducer for conveying and drying is convenient to directly crush, the integration of production equipment is ensured, meanwhile, a crushing box 41 is rotationally connected to the outer side of the movable rod 38, two movable rods 38 are arranged in parallel in the crushing box 41, the outer ends of the two movable rods 38 are fixedly connected with second gear plates 40, the two second gear plates 40 are in meshed connection, the rotation synchronism of the two movable rods 38 is realized, the second gear disc 40 is located on the outer side of the crushing box 41, the outer walls of the movable rods 38 are fixedly connected with the crushing rollers 39, the two crushing rollers 39 are meshed in the crushing box 41 in a staggered manner, the crushing effect of the solidified and agglomerated drag reducer is ensured, the feeding effect of the solidified drag reducer on the surface of the conveying belt 27 is considered, the guide hopper 42 is fixedly connected to the top end of the crushing box 41, the conveying frame 25 is fixedly connected to the top end of the guide hopper 42, the sealing cover 43 is fixedly arranged on the surface of the top end of the guide hopper 42, the fixing cover 28 is fixedly connected to one end of the sealing cover 43, and through the arrangement, the drag reducer can directly enter the crushing box 41 on the surface of the conveying belt 27, so that the moving safety of the drag reducer is ensured, and the structure is compact and high practicability are realized.

The working principle of the production equipment is as follows: the components A with different weight portions are respectively added into the material boxes 5, the two material boxes 5 are respectively used for classifying and feeding the components A and the components B by arranging a plurality of material distributing cavities in the material boxes 5, the outer wall of the material boxes 5 is fixedly connected with a rotating sleeve plate 8, under the energizing effect of an electric motor 12, a first gear disc 11 is rotated, the outer wall of a heating cylinder 1 is fixedly arranged at a gear ring 13, the first gear disc 11 is rotated at the outer wall of the gear ring 13, the rotating sleeve plate 8 is rotated on the inner wall of the heating cylinder 1, the rotating sleeve plate 8 drives the two material boxes 5 to rotate on the surface of a material guiding ring 3, the material passing through the bottom end of the material boxes 5 is fed into the heating cylinder 1 by the arrangement that the material passing through the material holes 7 at the bottom end of the material boxes 5 are rotated to the corresponding positions of the material feeding holes 4, the component A and the component B are uniformly added into the heating cylinder 1, meanwhile, under the action of the rotating rod 14 fixedly connected to the inner top of the sleeve plate 8, the rotating rod 14 drives the main gear 15 to rotate, the plurality of auxiliary gears 17 are connected to the outer wall of the main gear 15 in a meshed manner, under the action of the auxiliary gears 17 rotationally connected to the inner side of the rotating frame 16, the main gear 15 drives the stirring rod 19 to rotate in the heating cylinder 1, meanwhile, the plurality of auxiliary gears 17 drive the mixing rod 20 to rotate and rotate on the periphery of the stirring rod 19, so that the efficient mixing of the component A and the component B in the heating cylinder 1 is realized, meanwhile, the internal temperature of the heating cylinder 1 is heated, the mixing reaction effect is ensured, after the materials in the heating cylinder 1 are mixed, the mixed materials are moved by the conveying and drying unit is arranged at the bottom of the heating cylinder 1, meanwhile, under the action of the heating rod 33 arranged on the surface of the conveying belt 27, the heating rod 33 is used for pressing and jointing the surface of the conveying belt 27, materials on the surface of the conveying belt 27 are conveniently flattened, under the action of the heating roller 29 arranged at the bottom of the conveying belt 27, the conveying belt 27 can dry and dry the materials when conveying the materials, the crushing unit is connected with the tail end of the conveying belt 27, the materials directly enter the crushing box 41 after conveying, the movable rod 38 is used for driving the crushing roller 39 to rotate through the transmission of the synchronous wheel and the synchronous belt 36, the two crushing rollers 39 are used for rotating oppositely through the end parts of the two movable rods 38 fixedly connected with the second gear disc 40, the efficient crushing of the solidified and agglomerated drag reducer is realized, and the crushed drag reducer particles are conveniently collected at the bottom of the crushing box 41 by a user.

In summary, through connecting guide ring 3 at the outer wall of heating cylinder 1, and under the effect of guide ring 3 surface rotation connection magazine 5, then make magazine 5 can drive the inside of component A and component B in turn to heating cylinder 1 carry out the feeding, and under the effect of transmission compounding unit, then make change the board 8 and can carry out even compounding to the inside of heating cylinder 1 when rotating, guaranteed the mixed effect of component A and component B, be favorable to improving the reaction efficiency of material, and through connecting the stoving unit at the bottom of heating cylinder 1, then make the material of mixing reaction by effectual stoving in the transportation process, keep still than current room temperature, production efficiency is greatly improved, and realized the integrated processing of high salt-tolerant drag reducer, and through connecting crushing unit at the other end of conveyer belt 27, be convenient for carry out direct crushing to the high salt-tolerant drag reducer of shaping solidification, the follow-up collection to high salt-tolerant drag reducer of user has been guaranteed, machining efficiency and integrated production of high salt-tolerant drag reducer, and compact structure, facilitate popularization and utilization.

Embodiments of a method of producing a highly salt-tolerant drag reducer for fracturing:

The embodiment provides a specific example of a production method of a high salt-tolerant drag reducer for fracturing, which is specifically implemented as follows:

Method embodiment one:

the production method of the high salt-tolerant drag reducer for fracturing comprises the following steps:

S1, preparing a component A, namely preparing the component A with different parts by weight, wherein the component A comprises 33 parts of acrylamide, 15 parts of methyl methacrylate, 8 parts of hexadecylacrylamide, 30 parts of water and 7 parts of phosphoglyceride;

S2, preparing a component B, namely preparing the component B with different parts by weight, wherein the component B comprises 21 parts of polyvinylpyrrolidone, 8 parts of sodium hydroxide, 20 parts of sodium dodecyl sulfate, 13 parts of ammonium sulfate, 15 parts of sodium bisulfate and 12 parts of azodiisobutylamidine hydrochloride;

S3, uniformly adding the component A and the component B into the reaction kettle, stirring, and heating to 63 ℃ to uniformly mix the components;

s4, conveying and heating, namely controlling the heating temperature of the mixed pasty mixture to 82 ℃ in a reaction kettle, keeping the temperature for 5 hours, and standing and cooling to room temperature until the pasty mixture is solidified;

s5, terminal crushing, namely crushing and grinding the solidified block-shaped mixture, and collecting crushed drag reducer particles.

The production equipment adopted in the first embodiment of the method is available equipment on the existing market.

Method embodiment two:

the production method of the high salt-tolerant drag reducer for fracturing comprises the following steps:

s1, preparing a component A, namely adding the component A with different parts by weight into a material box 5 in a classified manner, wherein the component A comprises 33 parts of acrylamide, 15 parts of methyl methacrylate, 8 parts of hexadecylacrylamide, 30 parts of water and 7 parts of phosphoglyceride;

S2, preparing a component B, namely adding the component B with different parts by weight into the material box 5 in a classified manner, wherein the component B comprises 21 parts of polyvinylpyrrolidone, 8 parts of sodium hydroxide, 20 parts of sodium dodecyl sulfate, 13 parts of ammonium sulfate, 15-22 parts of sodium bisulfate and 12 parts of azodiisobutylamidine hydrochloride;

s3, uniformly adding the component A and the component B into the heating cylinder 1 through the transmission mixing unit, stirring, and heating to 63 ℃ to uniformly mix the components;

S4, conveying and heating, namely controlling the heating temperature of the mixed pasty mixture to 82 ℃, and drying by a conveying and drying unit after keeping the temperature for 1 hour;

s5, end crushing, namely crushing and grinding the solidified block-shaped mixture at the end of the conveying belt 27 through a crushing unit, and collecting crushed drag reducer particles.

The equipment adopted in the second embodiment of the method is the production equipment of the high-salt-tolerance drag reducer for fracturing.

Method embodiment three:

the production method of the high salt-tolerant drag reducer for fracturing comprises the following steps:

S1, preparing a component A, namely adding the component A with different parts by weight into a material box 5 in a classified manner, wherein the component A comprises 42 parts of acrylamide, 23 parts of methyl methacrylate, 12 parts of hexadecylacrylamide, 35 parts of water and 11 parts of phosphoglyceride;

S2, preparing a component B, namely adding the component B with different parts by weight into the material box 5 in a classified manner, wherein the component B comprises 35 parts of polyvinylpyrrolidone, 8-14 parts of sodium hydroxide, 26 parts of sodium dodecyl sulfate, 18 parts of ammonium sulfate, 22 parts of sodium bisulphite and 16 parts of azodiisobutylamidine hydrochloride;

S3, uniformly adding the component A and the component B into the heating cylinder 1 through the transmission mixing unit, stirring, and heating to 75 ℃ to uniformly mix the components;

s4, conveying and heating, namely controlling the heating temperature of the mixed pasty mixture to 94 ℃, and drying by a conveying and drying unit after keeping the temperature for 1 hour;

s5, end crushing, namely crushing and grinding the solidified block-shaped mixture at the end of the conveying belt 27 through a crushing unit, and collecting crushed drag reducer particles.

The equipment used in the production method of the high salt-tolerant drag reducer for fracturing in the third method embodiment is the same as that used in the second method embodiment, except that the method conditions are different.

Method embodiment four:

the production method of the high salt-tolerant drag reducer for fracturing comprises the following steps:

S1, preparing a component A, namely adding the component A with different parts by weight into a material box 5 in a classified manner, wherein the component A comprises 35 parts of acrylamide, 20 parts of methyl methacrylate, 10 parts of hexadecylacrylamide, 32 parts of water and 9 parts of phosphoglyceride;

S2, preparing a component B, namely adding the component B with different parts by weight into the material box 5 in a classified manner, wherein the component B comprises 28 parts of polyvinylpyrrolidone, 12 parts of sodium hydroxide, 23 parts of sodium dodecyl sulfate, 14 parts of ammonium sulfate, 18 parts of sodium bisulfate and 14 parts of azo diisobutylamidine hydrochloride;

s3, uniformly adding the component A and the component B into the heating cylinder 1 through the transmission mixing unit, stirring, and heating to 63-75 ℃ to uniformly react;

S4, conveying and heating, namely controlling the heating temperature of the mixed pasty mixture to be 90 ℃, and drying by a conveying and drying unit after keeping the temperature for 4 hours;

s5, end crushing, namely crushing and grinding the solidified block-shaped mixture at the end of the conveying belt 27 through a crushing unit, and collecting crushed drag reducer particles.

The equipment adopted by the production method of the high salt-tolerant drag reducer for fracturing in the fourth method embodiment is the same as that adopted by the second method embodiment and the second method embodiment, and the difference is that the production method conditions are different.

Experimental example:

According to NB/T14003.2-2016, performance of the high salt resistance drag reducer of method example I to method example IV is detected, and compared with the existing drag reducer production method, the improvement efficiency is measured, in the process examples I to IV of the application, after component A and component B are formulated, the same number of drag reducers are respectively selected in each group of process examples, performance of the drag reducer after production is detected, and compared with the performance detection results of the drag reducer, and the detection results are shown in FIG. 12:

As can be seen from the data of fig. 12, the production equipment of only S1 to S5 in the first method embodiment is different from the production equipment of only S1 to S5 in the second method embodiment, and the drag reduction rate in the second method embodiment is significantly higher than that in the first method embodiment, so that the drag reduction rate of the salt-tolerant drag reducer can be improved by using the production equipment of the high salt-tolerant drag reducer for fracturing.

Compared with the method embodiment III and the method embodiment IV, the method embodiment III and the method embodiment IV have different processing conditions, the processing steps use the same equipment, and the resistance reduction rates of the method embodiment III and the method embodiment IV are higher than those of the method embodiment II, so that the influence on the resistance reduction rate of the salt-tolerant drag reducer can be caused by different processing conditions.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The production equipment of the high salt-tolerant drag reducer for fracturing comprises a heating cylinder (1), and is characterized in that a feeding hole (2) is formed in the outer wall of the heating cylinder (1) in a penetrating mode, a guide ring (3) is fixedly connected to the outer wall of the heating cylinder (1), the outer wall of the heating cylinder (1) is located at the outer side of the feeding hole (2), a feeding hole (4) is formed in the surface of the guide ring (3), and a material box (5) is connected to the surface of the feeding hole (4) in a rotating mode;

the outer wall of the material box (5) is fixedly connected with a sleeve rotating plate (8), the inner wall of the sleeve rotating plate (8) is fixedly connected with a fixed plate (10), a first gear disc (11) is rotationally connected in the fixed plate (10), the first gear disc (11) is driven by an electric motor (12), a gear ring (13) is connected to the outer wall of the first gear disc (11) in a meshed manner, and the gear ring (13) is fixedly arranged on the outer wall of the heating cylinder (1);

the inner top wall of the rotating sleeve plate (8) is fixedly connected with a rotating rod (14), and the bottom end of the rotating rod (14) is connected with a transmission mixing unit;

the bottom of the heating cylinder (1) is provided with a conveying and drying unit, and one end of the conveying and drying unit, which is far away from the heating cylinder (1), is connected with a crushing unit.

2. The production equipment of the high salt-tolerant drag reducer for fracturing according to claim 1, wherein the outer wall of the heating cylinder (1) is fixedly connected with two guide rings (3), the guide rings (3) are arranged in parallel, and the inner sides of the two guide rings (3) are provided with feed holes (2);

the two feeding holes (2) are symmetrically formed in the left side and the right side of the heating cylinder (1), and the two feeding holes (2) are respectively arranged above and below the heating cylinder (1).

3. The production equipment of the high salt-tolerant drag reducer for fracturing according to claim 1, wherein the sleeve plate (8) is connected to the outer wall of the heating cylinder (1) in a sliding manner;

a plurality of through holes (9) are formed in the top end of the sleeve plate (8), and the through holes (9) are correspondingly formed in the charging holes (6).

4. The production equipment of the high salt-tolerant drag reducer for fracturing according to claim 2, wherein the surfaces of the two guide rings (3) are connected with a material box (5) in a sliding manner, and the material box (5) is arranged in an annular structure;

The inside separation of magazine (5) is provided with a plurality of feed divider chambeies, and feed inlet (6) have all been seted up on the top of every feed divider chamber to feed through hole (7) have all been seted up to the bottom of every feed divider chamber.

5. The production equipment of the high salt-tolerant drag reducer for fracturing according to claim 1, wherein the outer wall of the first gear plate (11) is fixedly connected with the output end of the electric motor (12), and the electric motor (12) is fixedly arranged on the surface of the fixing plate (10).

6. The production equipment of the high salt-tolerant drag reducer for fracturing is characterized in that the transmission mixing unit comprises a main gear (15), the main gear (15) is fixedly connected to the bottom end of a rotating rod (14), a plurality of auxiliary gears (17) are connected to the outer wall of the main gear (15) in an annular meshing manner, an inner gear ring (18) is sleeved on the outer wall of the plurality of auxiliary gears (17) in a meshing manner, and the inner gear ring (18) is fixedly connected to the inner wall of the heating cylinder (1);

The outer wall of the rotating rod (14) is fixedly connected with a rotating frame (16), and a plurality of slave gears (17) rotate in the rotating frame (16);

The bottom fixedly connected with puddler (19) of master gear (15), and the periphery annular of puddler (19) distributes and has a plurality of puddlers (19), and a plurality of puddlers (19) are fixed mounting respectively in the bottom of a plurality of slave gear (17).

7. The production equipment of the high-salt-tolerance drag reducer for fracturing according to claim 6, wherein a first bevel gear (21) is fixedly connected to the outer wall of the bottom of the stirring rod (19), a plurality of second bevel gears (22) are connected to the bottom end of the first bevel gear (21) in an annular meshing mode, a material guide rod (23) is fixedly connected to one side of each second bevel gear (22), one end, far away from each second bevel gear (22), of each material guide rod (23) is rotatably connected to the bottom of the heating cylinder (1), and the material guide rods (23) and the stirring rod (19) are vertically distributed.

8. The production equipment of the high salt resistance drag reducer for fracturing according to claim 1, wherein the conveying and drying unit comprises a receiving hopper (24), the receiving hopper (24) is fixedly connected to the bottom end of the heating cylinder (1), a conveying frame (25) is fixedly connected to the bottom end of the receiving hopper (24), conveying wheels (26) are rotatably connected to two ends of the conveying frame (25), one conveying wheel (26) is driven by a driving motor (44), and the other conveying wheel (26) is in transmission connection with a crushing unit;

The outer wall of the conveying wheel (26) is sleeved with a conveying belt (27) in a meshed mode, a fixed cover (28) is arranged above the conveying belt (27), the fixed cover (28) is fixedly arranged at the top end of the conveying frame (25), a plurality of heating rollers (29) are fixedly arranged in the conveying frame (25), and the heating rollers (29) are located at the bottom end of the conveying belt (27);

The inner top wall of the fixed cover (28) is fixedly connected with a reset spring (30), the bottom end of the reset spring (30) is fixedly provided with a mounting frame (31), the inside of the mounting frame (31) is rotationally connected with a rotating roller (32), the outer wall of the rotating roller (32) is fixedly connected with a heating rod (33), and the heating rod (33) is positioned above the conveying belt (27);

The top of mounting bracket (31) fixedly connected with a plurality of gag lever posts (34), and the outer wall cover of gag lever post (34) is equipped with reset spring (30).

9. The production equipment of the high salt-tolerant drag reducer for fracturing, as claimed in claim 8, wherein the crushing unit comprises a first synchronizing wheel (35), the first synchronizing wheel (35) is fixedly arranged at one end of the conveying wheel (26), the outer wall of the first synchronizing wheel (35) is connected with a synchronous belt (36) in a meshed manner, the inner wall of the bottom of the synchronous belt (36) is connected with a second synchronizing wheel (37) in a meshed manner, a movable rod (38) is fixedly arranged in the second synchronizing wheel (37), and a crushing box (41) is rotatably connected to the outer side of the movable rod (38);

two movable rods (38) are arranged in parallel in the crushing box (41), the outer ends of the two movable rods (38) are fixedly connected with second gear plates (40), the two second gear plates (40) are in meshed connection, and the second gear plates (40) are positioned on the outer side of the crushing box (41);

The outer walls of the movable rods (38) are fixedly connected with crushing rollers (39), and the two crushing rollers (39) are meshed in the crushing box (41) in a staggered manner;

The top fixedly connected with guide hopper (42) of smashing case (41), and the top fixedly connected with carriage (25) of guide hopper (42), the top surface mounting of guide hopper (42) has sealed cowling (43), and the one end fixedly connected with of sealed cowling (43) fixed cover (28).

10. A method for producing a highly salt-tolerant drag reducer for fracturing, characterized by being applied to a production apparatus of a highly salt-tolerant drag reducer for fracturing as claimed in any one of claims 1 to 9, comprising the steps of:

S1, preparing a component A, namely adding the component A with different parts by weight into a material box (5) in a classified manner, wherein the component A comprises 33-42 parts of acrylamide, 15-23 parts of methyl methacrylate, 8-12 parts of hexadecylacrylamide, 30-35 parts of water and 7-11 parts of phosphoglyceride;

S2, preparing a component B, namely adding the component B with different parts by weight into a material box (5) in a classified manner, wherein the component B comprises 21-35 parts of polyvinylpyrrolidone, 8-14 parts of sodium hydroxide, 20-26 parts of sodium dodecyl sulfate, 13-18 parts of ammonium sulfate, 15-22 parts of sodium bisulfite and 12-16 parts of azo diisobutylamidine hydrochloride;

S3, uniformly adding the component A and the component B into the heating cylinder (1) through the transmission mixing unit, stirring, and heating to 63-75 ℃ to uniformly react;

s4, conveying and heating, namely controlling the heating temperature of the mixed pasty mixture to be 82-94 ℃, and drying by a conveying and drying unit after keeping the temperature for 1-5 hours;

S5, crushing the tail end, namely crushing and grinding the solidified block-shaped mixture at the tail end of the conveying belt (27) through a crushing unit, and collecting crushed drag reducer particles.