CN114345510A

CN114345510A - Oil blanket nanometer PVA breaker for fibre production based on cavitation effect

Info

Publication number: CN114345510A
Application number: CN202111588593.4A
Authority: CN
Inventors: 江沐风; 吴登钱; 肖苏萍; 万云辉
Original assignee: Shanghai Tianxin Nanotechnology Co ltd
Current assignee: Shanghai Tianxin Nanotechnology Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-04-15
Anticipated expiration: 2041-12-23
Also published as: CN114345510B

Abstract

The invention discloses a crushing device for oil seal nanometer PVA fiber production based on cavitation effect, which comprises an equipment box body, a cavity cavitation cooperative variable-pressure uniform crushing mechanism, a synchronous centrifugal oil seal separation atomization drying mechanism and a transmission refrigeration primary crushing mechanism, wherein a vertical shaft is rotatably arranged in the equipment box body, the cavity cavitation cooperative variable-pressure uniform crushing mechanism is annularly arrayed on the side wall of the vertical shaft, the synchronous centrifugal oil seal separation atomization drying mechanism is arranged on the side wall of the cavity cavitation cooperative variable-pressure uniform crushing mechanism, and the transmission refrigeration primary crushing mechanism is arranged on the upper wall of the equipment box body. The invention belongs to the field of nano material production, and particularly provides a crushing device for oil seal nano PVA fiber production based on cavitation effect, which applies cavitation phenomenon and cavitation effect to efficient and uniform crushing of PVA fiber, and improves the crushing efficiency of nano PVA fiber; the multipurpose principle is applied to oil seal treatment and separation drying of the nano PVA fibers, and the production efficiency of the oil seal nano PVA fibers is improved.

Description

Oil blanket nanometer PVA breaker for fibre production based on cavitation effect

Technical Field

The invention belongs to the field of nano material production, and particularly relates to a crushing device for oil seal nano PVA fiber production based on a cavitation effect.

Background

In the development of modified concrete, PVA fiber has good affinity and bridging effect with cement, and has good mechanical property and durability, and can generate certain slippage in the bridging process to enable fiber concrete to have strain hardening performance, so that the PVA fiber is widely used in concrete with flexibility requirement, but the PVA fiber diameter doped in the concrete at present is about 30 μm mostly, the fiber size is larger, the specific surface area of the fiber in the concrete is smaller, the bridging capability of the fiber can not be fully exerted, the total doping amount of the fiber is larger, the concrete production process is more difficult and the production cost is higher, and the nano PVA fiber after oil treatment can effectively solve the problems.

In the prior art, the electrostatic spinning mode is mostly adopted for producing the nano fibers by the organic polymer, but the produced nano fibers are in a continuous state, the fiber length is too long, the nano fibers can be used for modifying concrete by further crushing, the mechanical crushing mode cannot meet the nano-scale requirement, the size distribution is dispersed, a crushing and oil sealing integrated device for producing the nano PVA fibers is absent at present, uniform graded crushing of the electrostatic spinning nano PVA fibers can be realized, meanwhile, the oil treatment can be synchronously completed by means of the graded crushing process, and the aims of drying and dispersing the treated oil sealing nano PVA fibers are fulfilled.

Disclosure of Invention

Aiming at the situation and overcoming the defects of the prior art, the invention provides a crushing device for oil seal nano PVA fiber production based on cavitation effect, which applies the air pressure and hydraulic structure principle (air and hydraulic technology is used for replacing common system elements or functions) and the cavitation effect of ultrasonic waves (the dynamic process of growth and collapse when micro gas nuclear cavitation bubbles in liquid vibrate under the action of sound waves and sound pressure reaches a certain value) to the efficient and uniform crushing of PVA fiber, creatively arranges a cavity cavitation cooperative variable pressure uniform crushing mechanism, adopts chemical fiber oiling agent as a crushing medium, provides more gas media for the ultrasonic cavitation process by combining the modes of pressurizing dissolved air and reducing cavity explosion, provides raw materials for oil seal treatment and obviously improves the crushing efficiency of nano PVA fiber; the multipurpose principle (making an object possess multiple functions) and the porous material principle (making the object become porous, or using the supplementary porous part) are applied to the oil seal treatment and separation drying of the nanometer PVA fiber, and the synchronous centrifugal oil seal separation atomization drying mechanism is ingeniously arranged, so that the technical problem that the fiber oil agent is difficult to disperse after treatment is effectively solved, the production efficiency of the oil seal nanometer PVA fiber is improved, and the cost of the oil seal treatment of the nanometer PVA fiber is reduced.

The technical scheme adopted by the invention is as follows: the scheme provides a crushing device for oil seal nanometer PVA fiber production based on cavitation effect, which comprises an equipment box body, a cavity cavitation cooperative variable-pressure uniform crushing mechanism, a synchronous centrifugal oil seal separation atomization drying mechanism and a transmission refrigeration primary crushing mechanism, wherein a vertical shaft is arranged in the equipment box body in a rotating mode, the cavity cavitation cooperative variable-pressure uniform crushing mechanism is annularly arrayed on the side wall of the vertical shaft, the synchronous centrifugal oil seal separation atomization drying mechanism is arranged on the side wall, far away from the vertical shaft, of the cavity cavitation cooperative variable-pressure uniform crushing mechanism, the transmission refrigeration primary crushing mechanism is fixedly arranged on the upper wall of the outer portion of the equipment box body, the transmission refrigeration primary crushing mechanism, the cavity cavitation cooperative variable-pressure uniform crushing mechanism and the synchronous centrifugal oil seal separation atomization drying mechanism are sequentially connected in a through mode, and the cavity cavitation cooperative variable-pressure uniform crushing mechanism applies air pressure and hydraulic structural principle and ultrasonic cavitation effect to PVA fiber In the process of crushing, chemical fiber oiling agent is used as a crushing medium, a mode of pressurizing dissolved gas and decompressing cavity explosion is combined to provide more gas media for an ultrasonic cavitation process, raw materials are provided for oil seal treatment, the crushing efficiency of nano PVA fibers is obviously improved, a synchronous centrifugal oil seal separation atomization drying mechanism applies a versatility principle and a porous material principle to oil seal treatment and separation drying of the nano PVA fibers, oil is sealed on the surfaces of the nano PVA fibers by virtue of the oiling agent used in the ultrasonic cavitation crushing process, the nano PVA fibers are separated and extracted by adopting a centrifugal mode and a semipermeable membrane material according to the density difference of the PVA fibers and the oil, the crushing and oil seal processes are synchronously carried out, the nano PVA fibers separated and extracted are dried and dispersed by virtue of the ultrasonic atomization principle, the technical problem that the fibers are difficult to disperse after the fiber oiling agent treatment is effectively solved, and the production efficiency of the oil seal nano PVA fibers is improved, the cost of nano PVA fiber oil seal treatment is reduced; the cavity cavitation cooperative variable-pressure uniform crushing mechanism comprises a variable-pressure air-increasing cavitation reaction box, an ultrasonic cavitation generating device and a low-temperature oil circuit circulating device, wherein the variable-pressure air-increasing cavitation reaction box is arranged on the side wall of a vertical shaft in an annular array manner, the ultrasonic cavitation generating device is respectively arranged on the lower wall of the variable-pressure air-increasing cavitation reaction box in a penetrating manner, the low-temperature oil circuit circulating device is arranged on the side wall of the variable-pressure air-increasing cavitation reaction box, the synchronous centrifugal oil seal separation and atomization drying mechanism comprises a centrifugal oil seal separation and filtration device and an ultrasonic atomization drying and dispersion device, the centrifugal oil seal separation and filtration device is arranged on the side wall of the variable-pressure air-increasing cavitation reaction box far away from the vertical shaft in a penetrating manner, the ultrasonic atomization drying and dispersion device is arranged on the side wall of the centrifugal oil seal separation and filtration device in a penetrating manner, and the conveying freezing primary crushing mechanism comprises a conveying box, a jet freezing device and a multilayer rotary cutting and centrifugal dispersion device, the conveying box is fixedly arranged on the upper wall of the equipment box body, the opposite-spraying refrigeration device penetrates through the side wall of the conveying box and is arranged on the upper wall of the equipment box body, the multi-layer rotary-cut centrifugal dispersing device is arranged at the upper end of the vertical shaft and is rotationally connected with the opposite-spraying refrigeration device, and the conveying box, the opposite-spraying refrigeration device, the multi-layer rotary-cut centrifugal dispersing device and the variable-pressure air-increasing cavitation reaction box are sequentially connected in a penetrating manner.

Wherein, the pressure-changing and gas-increasing cavitation reaction box comprises a cavitation crushing reaction box, a pressure regulating component and a liquid circulation auxiliary crushing component, the pressure regulating component is fixedly arranged on the side wall of the vertical shaft, the cavitation crushing reaction box is arranged at the end part of the pressure regulating component far away from the vertical shaft in a run-through manner, the liquid circulation auxiliary crushing component is fixedly arranged in the cavitation crushing reaction box, the upper wall of the cavitation crushing reaction box is provided with a nano-fiber receiving groove in a run-through manner, the nano-fiber receiving groove is connected with the multi-layer rotary-cutting centrifugal dispersing device in a run-through manner, a cross beam is arranged above the side wall in the cavitation crushing reaction box, the center of the upper wall of the cross beam is fixedly provided with a receiving groove sealing electric push rod, the upper end of the receiving groove sealing electric push rod is fixedly provided with a receiving groove sealing plate, the receiving groove sealing plate is arranged below the nano-fiber receiving groove, and the interior of the cavitation crushing reaction box is filled with chemical fiber oil agent, the pressure adjusting assembly comprises a pressure adjusting cylinder, a pressure adjusting electric push rod and a pressure adjusting plate, the end part of the pressure adjusting cylinder is fixedly arranged on the side wall of the vertical shaft, the end part of the pressure adjusting cylinder far away from the vertical shaft is communicated with the cavitation crushing reaction box, the pressure adjusting electric push rod is fixedly arranged on the side wall of the vertical shaft, the pressure adjusting plate is fixedly arranged on the end part of the pressure adjusting electric push rod, the pressure adjusting plate is slidably attached inside the pressure adjusting cylinder, the liquid circulation auxiliary crushing assembly comprises a side wall liquid flow machine and an axis liquid flow machine, the annular array of the side wall liquid flow machine is arranged on the side wall inside the cavitation crushing reaction box, the axis liquid flow machine is rotatably arranged in the center of the lower wall of the cross beam, the side wall liquid flow machine comprises a side wall stirring fan and a side wall liquid flow motor, and the side wall liquid flow motor is fixedly arranged on the side wall inside the cavitation crushing reaction box, the output ends of the side wall stirring fan and the side wall liquid flow motor are coaxially and fixedly connected, the axis liquid flow machine comprises an axis liquid flow motor and an axis liquid flow fan, the axis liquid flow motor is fixedly arranged on the lower wall of the cross beam, the axis liquid flow fan is rotatably arranged on the bottom wall inside the cavitation crushing reaction box, and the output ends of the axis liquid flow fan and the axis liquid flow motor are coaxially and fixedly connected; when the device operates, the pressure regulating assembly firstly pressurizes the inside of the cavitation and crushing reaction box, the closed electric push rod of the receiving groove pushes the sealing plate of the receiving groove to move, the upper wall of the sealing plate of the receiving groove is tightly attached to the lower end of the receiving groove of the nano fiber, so that a closed space is formed inside the cavitation and crushing reaction box, the pressure regulating electric push rod extends to drive the pressure regulating plate to move along the inner wall of the pressure regulating cylinder, the volume inside the cavitation and crushing reaction box is reduced, the pressure of chemical fiber oiling agents and air inside the cavitation and crushing reaction box is increased, more air is dissolved in the chemical fiber oiling agents, and a power source is added for the subsequent ultrasonic cavitation and cavity explosion and crushing processes.

Further, the ultrasonic cavitation generating device comprises an ultrasonic generator and an ultrasonic probe, the ultrasonic generator is fixedly arranged on the lower wall outside the cavitation and fragmentation reaction box, the ultrasonic probe penetrates through the bottom wall of the cavitation and fragmentation reaction box, and the end part of the ultrasonic probe is arranged inside the cavitation and fragmentation reaction box; when PVA fiber crushing is started, the upper wall of a sealing plate of the receiving groove is still tightly attached to the lower end of a receiving groove for nano fibers, the inside of a cavitation crushing reaction box is a closed space, a pressure adjusting electric push rod contracts to drive a pressure adjusting plate to move along the inner wall of a pressure adjusting cylinder, so that the volume of the inside of the cavitation crushing reaction box is increased, the chemical fiber oiling agent and the air pressure in the cavitation crushing reaction box are reduced, the chemical fiber oiling agent generates a cavitation phenomenon and releases a large amount of micro bubbles, an ultrasonic generator transmits ultrasonic signals to an ultrasonic probe, the ultrasonic probe emits ultrasonic waves, the ultrasonic waves are transmitted in the cavitation crushing reaction box, the chemical fiber oiling agent generates a cavitation effect and generates a large amount of micro bubbles, and the micro bubbles generated by the cavitation effect jointly generate a bursting phenomenon and tear and crush the PVA fibers near the micro bubbles.

Preferably, the conveying box comprises a fiber placing channel and a fiber conveying belt, the fiber placing channel is fixedly arranged on the upper wall of the equipment box body, the fiber conveying belt is symmetrically arranged on the upper wall and the lower wall inside the fiber placing channel, the opposite-spraying freezing device comprises an opposite-spraying freezing cylinder body, a liquid nitrogen storage tank and a freezing opposite-spraying component, the opposite-spraying freezing cylinder body is fixedly arranged on the upper wall of the equipment box body in a penetrating way, the opposite-spraying freezing cylinder body and the fiber placing channel are connected in a penetrating way, the liquid nitrogen storage tank is fixedly arranged on the upper wall of the equipment box body, the freezing opposite-spraying component is fixedly arranged on the side wall of the opposite-spraying freezing cylinder body in a penetrating way, the freezing opposite-spraying component comprises a freezing crushing conveying pipe and a freezing crushing spray head, the freezing crushing spray head is symmetrically arranged on the side wall of the opposite-spraying freezing cylinder body in a penetrating way, the freezing crushing conveying pipe is arranged on the side wall of the liquid nitrogen storage tank, the end part, far away from the liquid nitrogen storage tank, is connected with the freezing crushing spray head in a penetrating way, the middle part of the freezing and crushing conveying pipe is provided with a freezing and crushing liquid nitrogen electromagnetic valve which is electrically connected with the fiber conveying belt; after an operator puts untreated PVA fiber yarn rolls into a fiber placing channel, a fiber conveying belt runs and drives the PVA fiber yarn rolls to move, a freezing and crushing liquid nitrogen electromagnetic valve is opened, liquid nitrogen in a liquid nitrogen storage tank is sprayed out through a freezing and crushing conveying pipe and a freezing and crushing spray head, and after the PVA fiber yarn rolls enter a spraying and freezing cylinder body, the liquid nitrogen quickly cools the PVA fiber yarn rolls so that the brittleness of the PVA fiber yarn rolls is enhanced.

Preferably, the low-temperature oil circuit circulating device comprises a liquid nitrogen coupling conveying assembly and a liquid nitrogen cooling assembly, the liquid nitrogen coupling conveying assembly is slidably sleeved on the outer side wall of the opposite-spraying freezing cylinder body, the liquid nitrogen cooling assembly is fixedly arranged on the side wall of the cavitation crushing reaction box, the liquid nitrogen coupling conveying assembly comprises an oil circuit cooling conveying pipe and a conveying pipe supporting lifting frame, the conveying pipe supporting lifting frame is slidably sleeved on the outer side wall of the opposite-spraying freezing cylinder body, the oil circuit cooling conveying pipe is arranged on the upper wall of the conveying pipe supporting lifting frame, the end part of the oil circuit cooling conveying pipe penetrates through the side wall of the liquid nitrogen storage tank, the conveying pipe supporting lifting frame is provided with a conveying pipe lifting electric push rod close to the lower wall of the opposite-spraying freezing cylinder body, the end part of the conveying pipe lifting electric push rod is fixedly connected with the upper wall of the equipment box body, the end part of the conveying pipe supporting lifting frame, which is far away from the opposite-spraying freezing cylinder body, is provided with a liquid nitrogen conveying coupling spray head, the oil way cooling delivery pipe is respectively communicated with the liquid nitrogen delivery coupling spray head, and the middle part of the oil way cooling delivery pipe is provided with an oil way cooling liquid nitrogen electromagnetic valve; the liquid nitrogen cooling assembly comprises an oil path circulating pipe, an oil path circulating pump, a liquid nitrogen cooling box and an oil path cooling spray pipe, the liquid nitrogen cooling box is fixedly arranged on the side wall of the cavitation and crushing reaction box, two ends of the oil path circulating pipe are respectively arranged on the side wall of the cavitation and crushing reaction box in a penetrating manner, the oil path circulating pump is arranged in the liquid nitrogen cooling box and is fixedly arranged on the side wall of the cavitation and crushing reaction box, the oil path circulating pump is arranged in the middle of the oil path circulating pipe in a penetrating manner, the oil path cooling spray pipe is arranged on the upper wall of the liquid nitrogen cooling box in a penetrating manner, the upper end of the oil path cooling spray pipe is arranged on the upper wall of the equipment box body in a penetrating manner, the lower end of the oil path cooling spray pipe is provided with an oil path cooling spray head in a penetrating manner, the oil path cooling spray head is arranged above the oil path circulating pipe, a nitrogen injection coupling groove is arranged on the upper end of the oil path cooling spray pipe, and the liquid nitrogen delivery coupling nozzle is arranged above the motion track of the nitrogen injection coupling groove, the oil way cooling liquid nitrogen electromagnetic valve is electrically connected with the oil way circulating pump; when the oil-way circulating pump is started, the chemical fiber oil in the oil-way circulating pipe is driven to flow, so that the chemical fiber oil in the cavitation and crushing reaction box generates microcirculation, the conveying pipe lifting electric push rod pushes the conveying pipe supporting lifting frame to move downwards, so that the liquid nitrogen conveying coupling spray head and the oil-way cooling conveying pipe move downwards, after the liquid nitrogen conveying coupling spray head is inserted into the nitrogen injection coupling groove and tightly attached to each other, the conveying pipe lifting electric push rod stops running, the oil-way cooling liquid nitrogen electromagnetic valve is opened, so that liquid nitrogen in the liquid nitrogen storage tank is released and conveyed to the oil-way cooling spray pipe along the oil-way cooling conveying pipe, the liquid nitrogen conveying coupling spray head and the nitrogen injection coupling groove and is sprayed to the oil-way circulating pipe through the oil-way cooling spray head, the oil-way cooling spray head cools the oil-way circulating pipe, so that the chemical fiber oil flowing in the oil-way circulating pipe is cooled, and the chemical fiber oil in the cavitation and crushing reaction box is kept at a low temperature state, the low-temperature chemical fiber oiling agent enhances the brittleness of the PVA fiber, and the PVA fiber is easier to be crushed in the decompression ultrasonic cavitation process.

Further, the centrifugal oil seal separation and filtration device comprises a semi-permeable filtration collection component and a centrifugal oil liquid relay return component, the semi-permeable filtration collection component is arranged on the side wall of the cavitation and fragmentation reaction box, the centrifugal oil liquid relay return component is arranged on the side wall of the semi-permeable filtration collection component, the semi-permeable filtration collection component comprises a semi-permeable filtration tube and a spiral lifting and conveying auger, the semi-permeable filtration tube is arranged on the side wall of the cavitation and fragmentation reaction box far away from the vertical shaft in a penetrating manner, the spiral lifting and conveying auger is arranged inside the semi-permeable filtration tube in a rotating manner, the side wall of the semi-permeable filtration tube far away from the cavitation and fragmentation reaction box is provided with a semi-permeable filtration wall, the surface array of the semi-permeable filtration wall is provided with oiling agent centrifugal through holes in a penetrating manner, semi-permeable glass paper is arranged inside the semi-permeable filtration wall and penetrates through the oiling agent centrifugal through holes, and lifting power plates are arranged above the inner side wall of the semi-permeable filtration tube, the central authorities of the lifting power board run through and are equipped with worm coupling screw, semi-permeable cartridge filter lateral wall top runs through and is equipped with fibre collection through-hole, spiral lift conveying auger includes conveying auger shaft and auger power motor, conveying auger shaft rotates and locates the inside diapire of semi-permeable cartridge filter, conveying auger shaft rotates and locates inside the worm coupling screw, auger power motor fixes and locates the inside upper wall of semi-permeable cartridge filter, conveying auger shaft is coaxial fixed nanometer fibre tray, helical blade, finish sealed dish, lifting power worm and fibre collection power gear from bottom to top in proper order, nanometer fibre tray and semi-permeable cartridge filter inside lateral wall below slip laminating, the helical blade outside and semi-permeable cartridge filter inside wall middle part slip laminating, sealed dish finish and semi-permeable cartridge filter inside wall top slip laminating, lifting power worm and worm coupling screw inside wall meshing, the output end of the auger power motor is coaxially and fixedly provided with a auger driving gear, and the auger driving gear is meshed with the fiber collection power gear; the semi-permeable glass paper allows chemical fiber oil to pass through, the nano PVA fiber is filtered, the oil sealing disc seals the upper part of the semi-permeable filter cylinder, and a closed space is provided for the pressure-variable air-increasing cavitation reaction box.

Preferably, the centrifugal oil relay return assembly comprises a centrifugal oil temporary storage tank, an oil return pump and an oil return pipe, the centrifugal oil temporary storage tank is arranged on the side wall of the semi-permeable filter cartridge, the semi-permeable filter wall is arranged at the joint of the centrifugal oil temporary storage tank and the semi-permeable filter cartridge, the oil return pump is arranged on the outer lower wall of the centrifugal oil temporary storage tank, the oil return pipe is arranged on the outer lower wall of the centrifugal oil temporary storage tank and the outer lower wall of the cavitation and crushing reaction tank, the centrifugal oil temporary storage tank, the oil return pump, the oil return pipe and the cavitation and crushing reaction tank are sequentially connected in a penetrating manner, and a one-way oil injection hole is formed in the upper wall of the centrifugal oil temporary storage tank; when centrifugal operation is carried out on the centrifugal oil seal separation and filtration device, the semi-permeable glass paper blocks and filters broken nano PVA fibers, the nano PVA fibers are gathered in the semi-permeable filter cylinder, chemical fiber oiling agent enters the centrifugal oiling agent temporary storage box through the oiling agent centrifugal through hole and the semi-permeable glass paper, after most of the chemical fiber oiling agent in the cavitation and breakage reaction box enters the centrifugal oiling agent temporary storage box, the auger power motor is started to drive the auger driving gear to rotate to drive the fiber collection power gear to rotate, so that the conveying auger shaft rotates, the conveying auger shaft drives the nano fiber tray, the helical blade, the oiling agent sealing disc and the lifting power worm to rotate, when the lifting power worm rotates the screw hole in worm coupling, the conveying auger shaft rises, and when the lifting power worm rises above the lifting power plate, the lower wall of the oiling agent sealing disc rises above the fiber collection through hole, helical blade drives nanometer PVA fibre and rises, the completion is to the separation of nanometer PVA fibre, after the centrifugation is accomplished, the finish returns the pump operation, make the chemical fiber finish of centrifugation finish temporary storage incasement return inside the cavitation crushing reaction case through finish return pipe, and simultaneously, the shrink of pressure adjustment electric push rod, make the inside negative pressure that produces of cavitation crushing reaction case, the chemical fiber finish passes semi-permeable glassine through finish centrifugation through-hole and flows into cavitation crushing reaction case, carry out the hole clearance to semi-permeable glassine, prevent that semi-permeable glassine from producing permanent jam.

As a further preferred option of the scheme, the ultrasonic atomization drying dispersion device comprises an atomization dispersion box, an ultrasonic atomization sheet and an airflow dispersion assembly, the atomization dispersion box is fixedly arranged on the upper wall of the centrifugal oil agent temporary storage box, the ultrasonic atomization sheet is fixedly arranged on the side wall of the atomization dispersion box in an array manner, the airflow dispersion assembly is arranged on the side wall of the atomization dispersion box, the atomization dispersion box is communicated with the semi-permeable filter cylinder through a fiber collection through hole, the bottom wall of the atomization dispersion box is provided with a condensation oil agent guide inclined plate and a condensation oil agent collection semi-through hole, the condensation oil agent collection semi-through hole is arranged on the bottom wall of the atomization dispersion box close to the filter cylinder, the upper wall of the atomization dispersion box is rotatably provided with a material taking sealing cover plate, the ultrasonic atomization sheet is electrically connected with an ultrasonic generator, the airflow dispersion assembly comprises an impinging turbulence blade and a turbulence motor, and the turbulence motor is symmetrically arranged on the opposite side walls of the atomization dispersion box, the clash turbulent flow blade is coaxially and fixedly connected with the output end of the turbulent flow motor; nanometer PVA fibre rises to fibre along conveying auger shaft and collects when through-hole department, nanometer PVA fibre is thrown into the dispersion case that atomizes under centrifugal action, after centrifugal operation, supersonic generator effect makes the ultrasonic atomization piece send the ultrasonic wave, the ultrasonic atomization piece atomizes the remaining unnecessary chemical fibre finish fast of nanometer PVA fibre surface and accomplishes the oil blanket and dry, turbulent motor drive clashes the turbulent flow blade and rotates, disperse oil blanket nanometer PVA fibre after the drying, the unnecessary chemical fibre finish after the atomizing is attached to the dispersion incasement wall that atomizes and is collected half permeation centrifugation temporary storage case of aperture through condensation finish direction swash plate and condensation finish.

Furthermore, the multilayer rotary-cut centrifugal dispersing device comprises a high-speed rotary-cut crushing assembly, a rotary receiving cavity and a horizontal dispersing pipe, wherein the rotary receiving cavity is fixedly arranged at the upper end of the vertical shaft, the upper wall of the rotary receiving cavity is rotationally connected with the opposite-spraying freezing cylinder, the high-speed rotary-cut crushing assembly is arranged on the upper wall inside the rotary receiving cavity, the high-speed rotary-cut crushing assembly is arranged below the freezing opposite-spraying assembly, the annular array of the horizontal dispersing pipe penetrates through the side wall of the rotary receiving cavity, the end part, far away from the rotary receiving cavity, of the horizontal dispersing pipe is communicated with the upper end of the nanofiber receiving groove, the high-speed rotary-cut crushing assembly comprises a rotary-cut motor and rotary-cut crushing auxiliary blowing blades, the annular array of the rotary-cut motor is fixedly arranged on the upper wall inside the rotary receiving cavity, and the rotary-cut crushing auxiliary blowing blades are coaxially and fixedly connected with the output end of the rotary-cut motor; the PVA fiber reel that cools down through freezing broken shower nozzle drops along spouting freezing barrel inside, and the broken supplementary blade of blowing of rotary-cut motor drive rotates, and when the broken supplementary blade of blowing of rotary-cut was passed through to the PVA fiber reel, the PVA fiber reel was tentatively cut broken and dropped to rotating and receives the inside diapire of intracavity, and the dispersion motion is intraductal to horizontal dispersion under the blowing effect of the broken supplementary blade of blowing of rotary-cut to the PVA fiber after the breakage.

Preferably, a crushing and separating base is coaxially and fixedly arranged at the middle lower part of the vertical shaft, the cavitation crushing reaction box, the semi-permeable filter cartridge and the centrifugal oil temporary storage box are sequentially and fixedly arranged on the upper wall of the crushing and separating base from the vertical shaft from near to far, a magnetic absorption speed reducing block is arranged at the end part, far away from the vertical shaft, of the crushing and separating base, a centrifugal power gear is coaxially and fixedly arranged at the lower end of the vertical shaft, a centrifugal power motor is arranged at the bottom wall inside the equipment box body, a centrifugal driving gear is coaxially and fixedly arranged at the output end of the centrifugal power motor, the centrifugal driving gear is meshed with the centrifugal power gear, a transparent material taking cover is arranged on the annular array of the upper wall of the equipment box body, a static-position magnetic block is arranged on the annular array of the side wall of the inner wall of the equipment box body, and the static-position magnetic block is arranged in the motion plane of the magnetic absorption speed reducing block; after the PVA fibers which are primarily cut and crushed fall to the bottom wall of the inner part of the rotating receiving cavity, a centrifugal power motor drives a centrifugal driving gear to rotate to drive a centrifugal power gear to rotate, so that a vertical shaft rotates, the vertical shaft drives a crushing and separating base to rotate, so that a variable-pressure air-increasing cavitation reaction box synchronously rotates, the primarily cut and crushed PVA fibers move in a horizontal dispersion tube under the action of centrifugal force and enter the cavitation and crushing reaction box through a nano-fiber receiving groove, the centrifugal power motor stops running, the variable-pressure air-increasing cavitation reaction box ultrasonically crushes the primarily cut and crushed PVA fibers, when the nano-PVA fibers are crushed, the nano-PVA fibers are centrifugally separated, the centrifugal power motor drives the vertical shaft to rotate, so that the variable-pressure air-increasing cavitation reaction box, a centrifugal oil seal separation and filtration device and an ultrasonic atomization drying and dispersing device synchronously rotate, and the nano-PVA fibers are separated under the centrifugal action, when the centrifugal power motor stops running, the magnetic absorption speed reducing block continuously passes through the side edge of the static position magnetic block, the static position magnetic block and the magnetic absorption speed reducing block attract each other, so that the centrifugal oil liquid relay return assembly drives the crushing separation base and the vertical shaft to continuously reduce the speed, when the rotating speed of the vertical shaft is slow, the magnetic absorption speed reducing block passes through the side edge of the static position magnetic block again, the rotating inertia force of the vertical shaft is not enough to resist the attraction force between the static position magnetic block and the magnetic absorption speed reducing block, so that the vertical shaft gradually stops, when the vertical shaft stops, the distance between the magnetic absorption speed reducing block and the static position magnetic block is nearest, the nitrogen injection coupling groove is made to stop below the liquid nitrogen conveying coupling nozzle, and the material taking sealing cover plate is made to stop below the transparent material taking cover.

The invention with the structure has the following beneficial effects:

(1) the cavitation cooperative variable-pressure uniform crushing mechanism applies the cavitation effect of ultrasonic waves to the efficient uniform crushing of PVA fibers, the ultrasonic waves are used for enabling a crushing medium to generate the cavitation effect and generate a large number of micro bubbles, the micro bubbles generate a bursting phenomenon and tear and crush the PVA fibers near the micro bubbles, and the technical problem that the nano PVA fibers are difficult to uniformly crush is effectively solved;

(2) the pressure-variable air-increasing cavitation reaction box applies pressurized dissolved air and pressure-reducing cavity explosion expansion to the storage and auxiliary crushing of micro bubbles, provides more gas media for the ultrasonic cavitation process, enhances the ultrasonic cavitation degree and obviously improves the crushing efficiency of the nano PVA fiber;

(3) the chemical fiber oiling agent is used as a crushing medium, and the chemical fiber oiling agent is used for sealing oil on the surface of the nano PVA fiber, so that the material waste generated in the fiber crushing process is obviously reduced, the drying procedure before fiber oil sealing treatment is saved, and the cost of nano PVA fiber oil sealing treatment is reduced;

(4) the nano PVA fibers are subjected to cooling treatment by the spraying and freezing device and the low-temperature oil circuit circulating device, so that the brittleness of the nano PVA fibers is improved, and the nano PVA fibers are easier to break;

(5) the synchronous centrifugal oil seal separation atomization drying mechanism applies the porous material principle to the separation and drying of the nano PVA fiber, and adopts a semi-permeable membrane material to separate and extract the nano PVA fiber, so that the filtration completeness of the nano PVA fiber is improved;

(6) the ultrasonic atomization drying and dispersing device is used for drying and dispersing the separated and extracted nano PVA fibers by an ultrasonic atomization principle, so that the technical problem that the fibers are difficult to disperse after being treated by fiber oiling agents is effectively solved, and the production efficiency of the oil seal nano PVA fibers is improved;

(7) the static position magnetic block and the magnetic absorption speed reduction block reduce the speed of the counter shaft, and meanwhile, the nitrogen injection coupling tank is static below the liquid nitrogen conveying coupling spray head and the material taking sealing cover plate is static below the transparent material taking cover without electronic positioning.

Drawings

FIG. 1 is a schematic structural diagram of a crushing device for oil seal nano PVA fiber production based on cavitation effect, which is provided by the invention;

FIG. 2 is a schematic structural diagram of the interior of the equipment cabinet according to the present invention;

FIG. 3 is a schematic structural view of a vertical shaft and a centrifugal power motor according to the present invention;

FIG. 4 is a schematic view of a crushing separating base according to the present invention;

FIG. 5 is a side sectional view of the cavitation cooperative variable pressure uniform crushing mechanism and the synchronous centrifugal oil seal separation atomization drying mechanism provided by the invention;

FIG. 6 is a schematic cross-sectional structural view of a cavitation cooperative variable pressure uniform crushing mechanism according to the present invention;

FIG. 7 is a schematic structural diagram of a liquid nitrogen coupling conveying assembly and a counter-jet freezing device according to the present invention;

FIG. 8 is a schematic cross-sectional view of the centrifugal oil seal separation atomization drying mechanism of the invention;

fig. 9 is a side sectional view of a transfer freeze primary crusher mechanism according to the present invention.

Wherein, 1, an equipment box body, 11, a vertical shaft, 111, a crushing and separating base, 1110, a magnetic absorption speed reducing block, 112, a centrifugal power gear, 12, a centrifugal power motor, 121, a centrifugal driving gear, 13, a transparent material taking cover, 14, a static position magnetic block, 2, a cavity cavitation cooperative type pressure-changing uniform crushing mechanism, 21, a pressure-changing air-increasing cavitation reaction box, 211, a cavitation crushing reaction box, 2110, a nanofiber receiving groove, 2111, a cross beam, 2112, a receiving groove sealing electric push rod, 2113, a receiving groove sealing plate, 212, a pressure adjusting component, 2120, a pressure adjusting cylinder, 2121, a pressure adjusting electric push rod, 2122, a pressure adjusting plate, 213, a liquid circulation auxiliary crushing component, 2130, a side wall liquid flow machine, 2131, an axis liquid flow machine, 2132, a side wall stirring fan, 2133, a side wall liquid flow motor, 2134, an axis liquid flow motor, 2135, an axis liquid flow fan, 22 and an ultrasonic cavitation generating device, 221. an ultrasonic generator 222, an ultrasonic probe 23, a low-temperature oil circuit circulating device 231, a liquid nitrogen coupling conveying assembly 2310, an oil circuit cooling conveying pipe 2311, a conveying pipe supporting lifting frame 2312, a conveying pipe lifting electric push rod 2313, a liquid nitrogen conveying coupling spray head 2314, an oil circuit cooling liquid nitrogen electromagnetic valve 232, a liquid nitrogen cooling assembly 2320, an oil circuit circulating pipe 2321, an oil circuit circulating pump 2322, a liquid nitrogen cooling box 2323, an oil circuit cooling spray pipe 2324, an oil circuit cooling spray head 2325, a nitrogen injection coupling groove 3, a synchronous centrifugal oil seal separation and atomization drying mechanism 31, a centrifugal oil seal separation and filtration device 311, a semi-permeable oil seal filtration and collection assembly 3110, a semi-permeable filter cylinder 3111, a spiral lifting conveying auger 3112, a semi-permeable filtration wall 3113, an oil agent centrifugal through hole 3114, semi-permeable glass paper, 3115, a lifting power plate, a worm coupling 3116, a screw hole 3117, a screw hole, A fiber collecting through hole 3118, a conveying auger shaft 3119, an auger power motor 3120, a nanofiber tray 3121, a helical blade 3122, a finish sealing disk 3123, a lifting power worm 3124, a fiber collecting power gear 3125, a auger drive gear 313, a centrifugal oil relay return component 3130, a centrifugal oil temporary storage tank 3131, a finish return pump 3132, a finish return pipe 3133, a one-way oil injection hole 32, an ultrasonic atomization drying and dispersing device 321, an atomization dispersing tank 3210, a condensed oil guide sloping plate 3211, a condensed oil collecting semi-through hole 3212, a take-off sealing cover 322, an ultrasonic atomization sheet 32323, an air flow dispersing component 3230, an impinging turbulent blade, 3231, a turbulent motor 4, a conveying freezing primary crushing mechanism 41, a conveying tank 411, a fiber placing channel 412, a fiber conveying belt 42, an impinging freezing device 421, a fiber placing channel, opposite-spraying freezing cylinder 422, liquid nitrogen storage tank 423, freezing opposite-spraying component 4230, freezing crushing delivery pipe 4231, freezing crushing spray head 4232, freezing crushing liquid nitrogen electromagnetic valve 43, multilayer rotary-cutting centrifugal dispersing device 431, high-speed rotary-cutting crushing component 4310, rotary-cutting motor 4311, rotary-cutting crushing auxiliary blowing blade 432, rotary receiving cavity 433 and horizontal dispersing pipe.

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in figures 1-9, the oil seal nano PVA fiber production crushing device based on cavitation effect provided by the scheme comprises an equipment box body 1, a cavity cavitation cooperative variable-pressure uniform crushing mechanism 2, a synchronous centrifugal oil seal separation atomization drying mechanism 3 and a transmission refrigeration primary crushing mechanism 4, wherein a vertical shaft 11 is rotatably arranged in the center of the inside of the equipment box body 1, an annular array of the cavity cavitation cooperative variable-pressure uniform crushing mechanism 2 is arranged on the side wall of the vertical shaft 11, the synchronous centrifugal oil seal separation atomization drying mechanism 3 is arranged on the side wall of the cavity cavitation cooperative variable-pressure uniform crushing mechanism 2 far away from the vertical shaft 11, the transmission refrigeration primary crushing mechanism 4 is fixedly arranged on the upper wall of the outside of the equipment box body 1, the transmission refrigeration primary crushing mechanism 4, the cavity cavitation cooperative variable-pressure uniform crushing mechanism 2 and the synchronous centrifugal oil seal separation atomization drying mechanism 3 are sequentially communicated, the cavity cavitation cooperative variable-pressure uniform crushing mechanism 2 comprises a variable-pressure air-increasing cavitation reaction box 21, an ultrasonic cavitation generating device 22 and a low-temperature oil circuit circulating device 23, the variable-pressure air-increasing cavitation reaction box 21 is annularly arrayed on the side wall of a vertical shaft 11, the ultrasonic cavitation generating device 22 is respectively arranged on the lower wall of the variable-pressure air-increasing cavitation reaction box 21 in a penetrating way, the low-temperature oil circuit circulating device 23 is arranged on the side wall of the variable-pressure air-increasing cavitation reaction box 21, the synchronous centrifugal oil seal separation and atomization drying mechanism 3 comprises a centrifugal oil seal separation and filtration device 31 and an ultrasonic atomization drying and dispersion device 32, the centrifugal oil seal separation and filtration device 31 is arranged on the side wall of the variable-pressure air-increasing cavitation reaction box 21 far away from the vertical shaft 11 in a penetrating way, the ultrasonic atomization drying and dispersion device 32 is arranged on the side wall of the centrifugal oil seal separation and filtration device 31 in a penetrating way, the conveying freezing primary crushing mechanism 4 comprises a conveying box 41, a counter-jet freezing device 42 and a multilayer rotary cutting and centrifugal dispersion device 43, the conveying box 41 is fixedly arranged on the upper wall of the equipment box body 1, the opposite spraying freezing device 42 penetrates through the side wall of the conveying box 41 and is arranged on the upper wall of the equipment box body 1, the multi-layer rotary cutting centrifugal dispersing device 43 is arranged at the upper end of the vertical shaft 11, the multi-layer rotary cutting centrifugal dispersing device 43 is rotatably connected with the opposite spraying freezing device 42, and the conveying box 41, the opposite spraying freezing device 42, the multi-layer rotary cutting centrifugal dispersing device 43 and the variable-pressure air-increasing cavitation reaction box 21 are sequentially connected in a penetrating manner.

As shown in fig. 5 and 6, the pressure-varying and air-increasing cavitation reaction tank 21 includes a cavitation crushing reaction tank 211, a pressure regulating assembly 212 and a liquid circulation auxiliary crushing assembly 213, the pressure regulating assembly 212 is fixedly disposed on the side wall of the vertical shaft 11, the cavitation crushing reaction tank 211 is disposed through the end of the pressure regulating assembly 212 away from the vertical shaft 11, the liquid circulation auxiliary crushing assembly 213 is fixedly disposed inside the cavitation crushing reaction tank 211, the upper wall of the cavitation crushing reaction tank 211 is disposed through a nanofiber receiving tank 2110, the nanofiber receiving tank 2110 is connected to the multi-layer rotary-cutting centrifugal dispersing device 43, a cross beam 2111 is disposed above the side wall of the cavitation crushing reaction tank 211, a receiving tank sealing electric push rod 2112 is fixedly disposed in the center of the upper wall of the cross beam 2111, a receiving tank sealing plate 2113 is fixedly disposed at the upper end of the receiving tank sealing electric push rod 2112, the receiving tank 2113 is disposed below the nanofiber receiving tank 2110, a chemical fiber oiling agent is filled inside the cavitation crushing reaction tank 211, the pressure adjusting assembly 212 comprises a pressure adjusting cylinder 2120, a pressure adjusting electric push rod 2121 and a pressure adjusting plate 2122, the end of the pressure adjusting cylinder 2120 is fixedly arranged on the side wall of the vertical shaft 11, the end of the pressure adjusting cylinder 2120 far away from the vertical shaft 11 is communicated with the cavitation crushing reaction box 211, the pressure adjusting electric push rod 2121 is fixedly arranged on the side wall of the vertical shaft 11, the pressure adjusting electric push rod 2121 is arranged inside the pressure adjusting cylinder 2120, the pressure adjusting plate 2122 is fixedly arranged on the end of the pressure adjusting electric push rod 2121, the pressure adjusting plate 2122 is arranged inside the pressure adjusting cylinder 2120 in a sliding fit manner, the liquid circulation auxiliary crushing assembly 213 comprises a side wall liquid flow machine 2130 and an axial center liquid flow machine 2131, the side wall liquid flow machine 2130 is arranged on the inner side wall of the cavitation crushing reaction box 211 in an annular array manner, the axial center liquid flow machine 2131 is rotatably arranged in the center of the lower wall of the cross beam 2111, the side wall liquid flow machine 2130 comprises a side wall stirring fan 2132 and a side wall liquid flow motor 2133, the side wall liquid flow motor 2133 is fixedly arranged on the inner side wall of the cavitation crushing reaction box 211, the output ends of the side wall toggle fan 2132 and the side wall liquid flow motor 2133 are coaxially and fixedly connected, the axis liquid flow motor 2131 comprises an axis liquid flow motor 2134 and an axis liquid flow fan 2135, the axis liquid flow motor 2134 is fixedly arranged on the lower wall of the cross beam 2111, the axis liquid flow fan 2135 is rotatably arranged on the bottom wall in the cavitation and crushing reaction box 211, and the output ends of the axis liquid flow fan 2135 and the axis liquid flow motor 2134 are coaxially and fixedly connected; the pressure regulating assembly 212 enables more air to be dissolved in the chemical fiber oiling agent, and a power source is added for the subsequent ultrasonic cavitation and hole explosion and crushing process.

As shown in fig. 5 and 6, the ultrasonic cavitation generator 22 includes an ultrasonic generator 221 and an ultrasonic probe 222, the ultrasonic generator 221 is fixedly disposed on the outer lower wall of the cavitation-fragmentation reaction tank 211, the ultrasonic probe 222 penetrates the bottom wall of the cavitation-fragmentation reaction tank 211, and the end of the ultrasonic probe 222 is disposed inside the cavitation-fragmentation reaction tank 211; the pressure adjusting component 212 enables the chemical fiber oiling agent to generate cavitation and release a large amount of micro bubbles, the ultrasonic cavitation generating device 22 enables the chemical fiber oiling agent to generate cavitation effect and generate a large amount of micro bubbles, and the micro bubbles generated by the cavitation effect and the cavitation effect jointly generate bursting phenomenon and tear and break the PVA fibers near the micro bubbles.

As shown in fig. 7 and 9, the delivery box 41 includes a fiber placing passage 411 and a fiber delivery belt 412, the fiber placing passage 411 is fixedly disposed on the upper wall of the equipment box 1, the fiber delivery belt 412 is symmetrically disposed on the upper and lower walls inside the fiber placing passage 411, the opposite-spraying freezing device 42 includes an opposite-spraying freezing cylinder 421, a liquid nitrogen storage tank 422 and a freezing opposite-spraying component 423, the opposite-spraying freezing cylinder 421 is fixedly penetrated through the upper wall of the equipment box 1, the opposite-spraying freezing cylinder 421 is connected with the fiber placing passage 411 in a penetrating manner, the liquid nitrogen storage tank 422 is fixedly disposed on the upper wall of the equipment box 1, the freezing opposite-spraying component 423 is fixedly penetrated through the side wall of the opposite-spraying freezing cylinder 421, the freezing opposite-spraying component 423 includes a freezing and crushing delivery pipe 4230 and a freezing and crushing spray head 4231, the freezing and crushing delivery pipe 4231 is symmetrically penetrated through the side wall of the opposite-spraying freezing cylinder 421, the freezing and crushing delivery pipe 4230 is penetrated through the side wall of the liquid nitrogen storage tank 422, the end of the freezing and crushing delivery pipe 4231 far away from the liquid nitrogen storage tank 422 is connected with the freezing and crushing spray head 4231, a freezing and crushing liquid nitrogen electromagnetic valve 4232 is arranged in the middle of the freezing and crushing delivery pipe 4230, and the freezing and crushing liquid nitrogen electromagnetic valve 4232 is electrically connected with the fiber conveyor belt 412.

As shown in fig. 4 and 7, the low-temperature oil circuit circulating device 23 includes a liquid nitrogen coupling conveying assembly 231 and a liquid nitrogen cooling assembly 232, the liquid nitrogen coupling conveying assembly 231 is slidably sleeved on the outer side wall of the opposite-spraying freezing cylinder 421, the liquid nitrogen cooling assembly 232 is fixedly disposed on the side wall of the cavitation crushing reaction box 211, the liquid nitrogen coupling conveying assembly 231 includes an oil circuit cooling conveying pipe 2310 and a conveying pipe supporting lifting frame 2311, the conveying pipe supporting lifting frame 2311 is slidably sleeved on the outer side wall of the opposite-spraying freezing cylinder 421, the oil circuit cooling conveying pipe 2310 is disposed on the upper wall of the conveying pipe supporting lifting frame 2311, the end of the oil circuit cooling conveying pipe 2310 penetrates through the side wall of the liquid nitrogen storage tank 422, the conveying pipe supporting lifting frame 2311 is provided with a conveying pipe lifting electric push rod 2312 near the lower wall of the opposite-spraying freezing cylinder 421, the end of the conveying pipe lifting electric push rod 2312 is fixedly connected with the upper wall of the equipment box 1, the conveying pipe supporting lifting frame 2311 is provided with a liquid nitrogen conveying coupling spray head 2313 in an annular array far away from the end of the opposite-spraying freezing cylinder 421, the oil path cooling delivery pipe 2310 is respectively communicated with the liquid nitrogen delivery coupling spray head 2313, and the middle part of the oil path cooling delivery pipe 2310 is provided with an oil path cooling liquid nitrogen electromagnetic valve 2314; the liquid nitrogen cooling component 232 comprises an oil circuit circulating pipe 2320, an oil circuit circulating pump 2321, a liquid nitrogen cooling box 2322 and an oil circuit cooling spray pipe 2323, the liquid nitrogen cooling box 2322 is fixedly arranged on the side wall of the cavitation and crushing reaction box 211, two ends of the oil circuit circulating pipe 2320 are respectively arranged on the side wall of the cavitation and crushing reaction box 211 in a penetrating manner, the oil circuit circulating pipe 2320 is arranged inside the liquid nitrogen cooling box 2322, the oil circuit circulating pump 2321 is fixedly arranged on the side wall of the cavitation and crushing reaction box 211, the oil circuit circulating pump 2321 is arranged in the middle of the oil circuit circulating pipe 2320 in a penetrating manner, the oil circuit cooling spray pipe 2323 is arranged on the upper wall of the liquid nitrogen cooling box 2322 in a penetrating manner, the upper end of the oil circuit cooling spray pipe 2323 is arranged on the upper wall of the equipment box body 1 in a penetrating manner, the lower end of the oil circuit cooling spray pipe 2323 is provided with an oil circuit cooling spray head 2324 arranged above the oil circuit circulating pipe 2320, the upper end of the oil circuit cooling spray pipe 2323 is provided with a nitrogen injection coupling groove 2325, the liquid nitrogen delivery coupling spray head 2313 is arranged above the movement track of the nitrogen injection coupling groove 2325, the oil path cooling liquid nitrogen solenoid valve 2314 is electrically connected with the oil path circulating pump 2321.

As shown in fig. 5 and 8, the centrifugal oil-seal separation filter device 31 includes a semi-permeable filter collection assembly 311 and a centrifugal oil liquid relay return assembly 313, the semi-permeable filter collection assembly 311 is disposed on a side wall of the cavitation-breaking reaction tank 211, the centrifugal oil liquid relay return assembly 313 is disposed on a side wall of the semi-permeable filter collection assembly 311, the semi-permeable filter collection assembly 311 includes a semi-permeable filter cartridge 3110 and a spiral lifting and conveying auger 3111, the semi-permeable filter cartridge 3110 is disposed on a side wall of the cavitation-breaking reaction tank 211 away from the vertical shaft 11, the spiral lifting and conveying auger 3111 is rotatably disposed inside the semi-permeable filter cartridge 3110, a semi-permeable filter wall 3112 is disposed on a side wall of the semi-permeable filter 3110 away from the cavitation-breaking reaction tank 211, an oil liquid centrifugal through hole 3113 is disposed on a surface array of the semi-permeable filter wall 3112, a semi-permeable glass 3114 is disposed inside the semi-permeable filter wall 3112, the semi-permeable glass 3114 passes through the oil liquid centrifugal through hole 3113, a lifting power plate 3115 is disposed above an inner side wall of the semi-permeable filter 3110, a worm coupling screw hole 3116 is arranged in the center of the lifting power plate 3115 in a penetrating manner, a fiber collecting through hole 3117 is arranged above the side wall of the semi-permeable filter cartridge 3110 in a penetrating manner, a spiral lifting conveying auger 3111 comprises a conveying auger shaft 3118 and an auger power motor 3119, the conveying auger shaft 3118 is rotatably arranged at the bottom wall of the semi-permeable filter cartridge 3110, the conveying auger shaft 3118 is rotatably arranged inside the worm coupling screw hole 3116, the auger power motor 3119 is fixedly arranged at the upper wall of the semi-permeable filter cartridge 3110, the conveying auger shaft 3118 is sequentially and coaxially provided with a nanofiber tray 3120, a spiral blade 3121, an oil sealing disc 3122, a lifting power worm 3123 and a fiber collecting power gear 3124 from bottom to top, the nanofiber tray 3120 and the lower side wall of the inner side wall of the semi-permeable filter cartridge 3110 are in a sliding manner, the outer side of the spiral blade 3121 and the middle inner side wall of the semi-permeable filter cartridge 3110 are in a sliding manner, the oil sealing disc 3122 and the inner side wall of the semi-permeable filter cartridge are in a sliding manner, the lifting power worm 3123 is meshed with the inner side wall of the worm coupling screw 3116, the output end of the auger power motor 3119 is coaxially and fixedly provided with an auger driving gear 3125, and the auger driving gear 3125 is meshed with the fiber collection power gear 3124.

As shown in fig. 8, the centrifugal oil return relay module 313 includes a centrifugal oil temporary storage tank 3130, an oil return pump 3131, and an oil return pipe 3132, the centrifugal oil temporary storage tank 3130 is provided on a side wall of the semi-permeable filter cartridge 3110, the semi-permeable filter wall 3112 is provided at a junction of the centrifugal oil temporary storage tank 3130 and the semi-permeable filter cartridge 3110, the oil return pump 3131 is provided on an outer lower wall of the centrifugal oil temporary storage tank 3130, the oil return pipe 3132 is provided on an outer lower wall of the centrifugal oil temporary storage tank 3130 and the cavitation breaking reaction tank 211, the centrifugal oil temporary storage tank 3130, the oil return pump 3131, the oil return pipe 3132, and the cavitation breaking reaction tank 211 are sequentially connected through, and a one-way oil filling hole 3133 is provided on an upper wall of the centrifugal oil temporary storage tank 3130.

As shown in fig. 5 and 8, the ultrasonic atomizing, drying and dispersing device 32 includes an atomizing and dispersing box 321, an ultrasonic atomizing plate 322 and an airflow dispersing assembly 323, the atomizing and dispersing box 321 is fixed on the upper wall of a centrifugal oil temporary storage box 3130, the ultrasonic atomizing plate 322 is distributed and fixed on the side wall of the atomizing and dispersing box 321, the airflow dispersing assembly 323 is arranged on the side wall of the atomizing and dispersing box 321, the atomizing and dispersing box 321 is connected with a semi-permeable filter cartridge 3110 through a fiber collecting through hole 3117, a condensate oil guiding inclined plate 3210 and a condensate oil collecting semi-permeable hole 3211 are arranged on the bottom wall of the atomizing and dispersing box 321, the condensate oil collecting semi-permeable hole 3211 is arranged on the bottom wall of the atomizing and dispersing box 321 near the filter cartridge, a material taking sealing cover plate 3212 is rotatably arranged on the upper wall of the atomizing plate 321, the ultrasonic atomizing plate 322 is electrically connected with an ultrasonic generator 221, the airflow dispersing assembly 323 includes a turbulent flow vane 3230 and a turbulent motor 3231, the turbulent motor 3231 is symmetrically arranged on opposite side walls in the atomization dispersion box 321, and the output ends of the turbulent blade 3230 and the turbulent motor 3231 are coaxially and fixedly connected.

As shown in fig. 9, the multi-deck rotary-cut centrifugal dispersing device 43 includes a high-speed rotary-cut crushing assembly 431, the rotary-cutting crushing assembly 431 is arranged below the freezing opposite-spraying assembly 423, an annular array of the horizontal dispersion pipes 433 is arranged on the side wall of the rotary receiving cavity 432 in a penetrating manner, the end part, far away from the rotary receiving cavity 432, of the horizontal dispersion pipe 433 is connected with the upper end of the nanofiber receiving groove 2110 in a penetrating manner, the high-speed rotary-cutting crushing assembly 431 comprises a rotary-cutting motor 4310 and rotary-cutting auxiliary blowing blades 4311, the annular array of the rotary-cutting motor 4310 is fixedly arranged on the upper wall of the rotary receiving cavity 432 in a penetrating manner, and the output ends of the rotary-cutting auxiliary blowing blades 4311 and the rotary-cutting motor 4310 are coaxially and fixedly connected.

As shown in fig. 2 and 3, a crushing and separating base 111 is coaxially and fixedly arranged at the lower middle part of the vertical shaft 11, a cavitation crushing reaction tank 211, a semi-permeable filter cartridge 3110 and a centrifugal oiling agent temporary storage tank 3130 are sequentially and fixedly arranged on the upper wall of the crushing and separating base 111 from the vertical shaft 11 from near to far, a magnetic absorption speed reduction block 1110 is arranged at the end part of the crushing and separating base 111 far from the vertical shaft 11, a centrifugal power gear 112 is coaxially and fixedly arranged at the lower end of the vertical shaft 11, a centrifugal power motor 12 is arranged at the bottom wall inside the equipment box 1, a centrifugal drive gear 121 is coaxially and fixedly arranged at the output end of the centrifugal power motor 12, the centrifugal drive gear 121 is meshed with the centrifugal power gear 112, a transparent material taking cover 13 is arranged on the upper wall of the equipment box 1 in an annular array, a static position magnetic block 14 is arranged on the side wall of the inner wall of the equipment box 1 in an annular array, and the static position magnetic block 14 is arranged in the moving plane of the magnetic absorption speed reduction block 1110.

When the device is used specifically, an operator firstly opens the transparent material taking cover 13, chemical fiber oiling agents are injected into the centrifugal oiling agent temporary storage box 3130 through the one-way oiling hole 3133, in an initial state, the magnetic attraction speed reduction block 1110 is closest to the static position magnetic block 14, the nitrogen injection coupling groove 2325 is static below the liquid nitrogen conveying coupling spray head 2313, the material taking sealing cover plate 3212 is static below the transparent material taking cover 13, and the oiling agent return pump 3131 is started to enable the chemical fiber oiling agents in the centrifugal oiling agent temporary storage box 3130 to enter the cavitation crushing reaction box 211 through the oiling agent return pipe 3132.

Firstly, chemical fiber oiling agent is pressurized, a receiving groove closing electric push rod 2112 pushes a receiving groove sealing plate 2113 to move, the upper wall of the receiving groove sealing plate 2113 is tightly attached to the lower end of a nanofiber receiving groove 2110, so that a closed space is formed inside the cavitation and crushing reaction box 211, a pressure adjusting electric push rod 2121 extends to drive a pressure adjusting plate 2122 to move along the inner wall of a pressure adjusting cylinder 2120, the inner volume of the cavitation and crushing reaction box 211 is reduced, the pressure of the chemical fiber oiling agent and air inside the cavitation and crushing reaction box 211 is increased, more air is dissolved in the chemical fiber oiling agent, and a power source is added for the subsequent ultrasonic cavitation and cavity explosion and crushing processes.

After the pressurization treatment is completed, the pressure-adjusting electric push rod 2121 stops running, the receiving groove sealing electric push rod 2112 contracts to drive the receiving groove sealing plate 2113 to descend, an operator puts the PVA fiber coil into the fiber placing channel 411, the fiber conveying belt 412 and the freezing and crushing liquid nitrogen electromagnetic valve 4232 are started, the fiber conveying belt 412 drives the PVA fiber coil to move towards the opposite-spraying and freezing cylinder 421, liquid nitrogen in the liquid nitrogen storage tank 422 is sprayed out through the freezing and crushing conveying pipe 4230 and the freezing and crushing nozzle 4231, after the PVA fiber coil enters the opposite-spraying and freezing cylinder 421, the liquid nitrogen rapidly cools the PVA fiber coil to enhance the brittleness of the PVA fiber coil, the PVA fiber coil cooled by the freezing and crushing nozzle 4231 drops along the inside of the opposite-spraying and freezing cylinder 421, the rotary cutting motor 4310 drives the rotary cutting and crushing auxiliary blade 4311 to rotate, when the PVA fiber coil passes through the rotary cutting and crushing auxiliary blowing blade 4311, the PVA fiber coil is primarily cut and crushed and drops to the bottom wall of the rotary receiving groove 432, the broken PVA fibers dispersedly move into the horizontal dispersion pipe 433 under the blowing action of the rotary cutting and breaking auxiliary blowing blades 4311, the centrifugal power motor 12 is started to drive the centrifugal driving gear 121 to rotate, the centrifugal power gear 112 is driven to rotate, the vertical shaft 11 drives the breaking and separating base 111 to rotate, the variable-pressure air-increasing cavitation reaction box 21 synchronously rotates, the primarily cut and broken PVA fibers move inside the horizontal dispersion pipe 433 under the action of centrifugal force and enter the cavitation and breaking reaction box 211 through the nanofiber receiving groove 2110, and the centrifugal power motor 12 stops running.

The pressure-changing air-increasing cavitation reaction box 21 ultrasonically crushes the PVA fibers which are primarily cut and crushed, after the centrifugal power motor 12 stops running, the receiving groove sealing electric push rod 2112 is started again to push the receiving groove sealing plate 2113 to move, so that the upper wall of the receiving groove sealing plate 2113 is tightly attached to the lower end of the nanofiber receiving groove 2110, the inside of the cavitation crushing reaction box 211 is a sealed space, the pressure adjusting electric push rod 2121 contracts to drive the pressure adjusting plate 2122 to move along the inner wall of the pressure adjusting cylinder 2120, the internal volume of the cavitation crushing reaction box 211 is increased, the chemical fiber oiling agent and the air pressure in the cavitation crushing reaction box 211 are reduced, the chemical fiber oiling agent generates a cavitation phenomenon and releases a large amount of micro bubbles, the ultrasonic generator 221, the oil path circulating pump 2321, the side wall liquid flow motor 2133 and the axis liquid flow motor 2134 are started, the ultrasonic generator 221 transmits ultrasonic signals to the ultrasonic probe 222, and the ultrasonic probe 222 emits ultrasonic waves, ultrasonic waves are transmitted in the cavitation and crushing reaction box 211, so that a chemical fiber oiling agent generates a cavitation effect and generates a large amount of micro bubbles, the micro bubbles generated by the cavitation effect and the cavitation effect generate a bursting phenomenon together and tear and crush PVA fibers near the micro bubbles, the side wall liquid flow motor 2133 drives the side wall toggle fan 2132 to rotate, the axis liquid flow motor 2134 drives the axis liquid flow fan 2135 to rotate, so that liquid circulation is generated in the cavitation and crushing reaction box 211, the ultrasonic cavitation phenomenon is further enhanced, the PVA fiber crushing efficiency is improved, the oil circuit circulating pump 2321 drives the chemical fiber oiling agent in the oil circuit circulating pipe 2320 to flow, so that the chemical fiber oiling agent in the cavitation and crushing reaction box 211 generates microcirculation, the conveying pipe lifting electric push rod 2312 pushes the conveying pipe supporting lifting frame 2311 to move downwards, the liquid nitrogen conveying coupling spray head 2313 and the oil circuit cooling conveying pipe 2310 move downwards, when the liquid nitrogen conveying coupling spray head 2313 is inserted into the nitrogen injection coupling groove 2325 and tightly attached to each other, the conveying pipe lifting electric push rod 2312 stops running, the oil path cooling liquid nitrogen electromagnetic valve 2314 is opened, liquid nitrogen in the liquid nitrogen storage tank 422 is released and conveyed to the oil path cooling spray pipe 2323 along the oil path cooling conveying pipe 2310, the liquid nitrogen conveying coupling spray head 2313 and the nitrogen injection coupling groove 2325, and is sprayed to the oil path circulating pipe 2320 through the oil path cooling spray head 2324, the oil path cooling spray head 2324 cools the oil path circulating pipe 2320, the chemical fiber oil agent flowing in the oil path circulating pipe 2320 is cooled, and therefore the chemical fiber oil agent in the cavitation crushing reaction box 211 is kept in a low-temperature state, the low-temperature chemical fiber oil agent enables PVA fiber brittleness to be enhanced, and PVA fibers can be crushed more easily in the pressure reduction ultrasonic cavitation process.

After the nano PVA fiber is crushed, the nano PVA fiber is centrifugally separated, a centrifugal power motor 12 drives a vertical shaft 11 to rotate, so that a pressure-variable air-increasing cavitation reaction box 21, a centrifugal oil seal separation and filtration device 31 and an ultrasonic atomization drying and dispersion device 32 synchronously rotate, chemical fiber oiling agent enters a centrifugal oiling agent temporary storage box 3130 through an oiling agent centrifugal through hole 3113 and semi-permeable glass paper 3114, the semi-permeable glass paper 3114 blocks and filters the crushed nano PVA fiber, the nano PVA fiber is gathered in a semi-permeable filtration tube 3110, after most of the chemical fiber oiling agent in the cavitation crushing reaction box 211 enters the centrifugal oiling agent temporary storage box 3130, an auger power motor 3119 is started to drive an auger drive gear 3125 to rotate, a fiber collection power gear 3124 is driven to rotate, a conveying auger shaft 3118 is driven to rotate, the conveying auger shaft 3118 drives a nano fiber tray 3120, a helical blade 3121, a sealing disc 3122 of the oiling agent, The lifting power worm 3123 rotates, when the lifting power worm 3123 rotates in the worm coupling screw 3116, the conveying auger shaft 3118 rises, when the lifting power worm 3123 rises above the lifting power plate 3115, the lower wall of the oil agent sealing disc 3122 rises above the fiber collection through hole 3117, the helical blade 3121 drives the nano PVA fiber to rise, the nano PVA fiber is thrown into the atomization dispersion box 321 under the centrifugal action, after the centrifugation is finished, oil return pump 3131 is started to return the chemical fiber oil in centrifugal oil temporary storage tank 3130 to the inside of cavitation/breaking reaction tank 211 through oil return pipe 3132, meanwhile, the pressure-adjusting electric push rod 2121 contracts to generate negative pressure inside the cavitation-breaking reaction tank 211, the chemical fiber oiling agent passes through the semi-permeable glass paper 3114 through the oiling agent centrifugal through hole 3113 and flows into the cavitation-breaking reaction tank 211, the semi-permeable glassine paper 3114 is subjected to hole cleaning to prevent the semi-permeable glassine paper 3114 from being permanently clogged.

After the centrifugal operation is finished, the ultrasonic generator 221 acts to enable the ultrasonic atomization sheet 322 to emit ultrasonic waves, the ultrasonic atomization sheet 322 rapidly atomizes redundant chemical fiber oiling agents remained on the surfaces of the nano PVA fibers and completes oil sealing and drying, the turbulent motor 3231 drives the impinging turbulent flow blade 3230 to rotate, the dried oil sealing nano PVA fibers are dispersed, the redundant chemical fiber oiling agents after atomization are attached to the inner wall of the atomization dispersion box 321 and permeate into the centrifugal oiling agent temporary storage box 3130 through the coagulation oiling agent guide inclined plate 3210 and the coagulation oiling agent collection semi-permeable hole 3211, and an operator takes out the nano PVA fibers after oiling agent treatment by opening the transparent material taking cover 13 and the material taking sealing cover plate 3212.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an oil blanket nanometer PVA is breaker for fibre production based on cavitation effect which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the device comprises an equipment box body (1), wherein a vertical shaft (11) is rotatably arranged in the center of the inside of the equipment box body (1);

the cavity cavitation cooperative variable-pressure uniform crushing mechanism (2) comprises a variable-pressure and air-increasing cavitation reaction box (21), an ultrasonic cavitation generation device (22) and a low-temperature oil circuit circulation device (23), wherein the variable-pressure and air-increasing cavitation reaction box (21) is annularly arrayed on the side wall of a vertical shaft (11), the ultrasonic cavitation generation device (22) penetrates through the lower wall of the variable-pressure and air-increasing cavitation reaction box (21), and the low-temperature oil circuit circulation device (23) is arranged on the side wall of the variable-pressure and air-increasing cavitation reaction box (21);

the synchronous centrifugal oil seal separation atomization drying mechanism (3) comprises a centrifugal oil seal separation filtering device (31) and an ultrasonic atomization drying dispersion device (32), wherein the centrifugal oil seal separation filtering device (31) is arranged on the side wall of the pressure-variable air-increasing cavitation reaction box (21) in a penetrating manner, and the ultrasonic atomization drying dispersion device (32) is arranged on the side wall of the centrifugal oil seal separation filtering device (31) in a penetrating manner;

the conveying and freezing primary crushing mechanism (4) is fixedly arranged on the upper wall of the equipment box body (1).

2. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 1, characterized in that: the pressure-changing and air-increasing cavitation reaction box (21) comprises a cavitation crushing reaction box (211), a pressure adjusting component (212) and a liquid circulation auxiliary crushing component (213), wherein the pressure adjusting component (212) is fixedly arranged on the side wall of a vertical shaft (11), the cavitation crushing reaction box (211) is arranged at the end part, far away from the vertical shaft (11), of the pressure adjusting component (212) in a penetrating manner, the liquid circulation auxiliary crushing component (213) is fixedly arranged inside the cavitation crushing reaction box (211), the upper wall of the cavitation crushing reaction box (211) is provided with a nanofiber receiving groove (2110) in a penetrating manner, a cross beam (2111) is arranged above the side wall inside the cavitation crushing reaction box (211), the center of the upper wall of the cross beam (2111) is fixedly provided with a receiving groove closed electric push rod (2112), the upper end of the receiving groove closed electric push rod (2112) is fixedly provided with a sealing plate (2113), and the receiving groove sealing plate (2113) is arranged below the nanofiber receiving groove (2110), the cavitation and crushing reaction box (211) is filled with chemical fiber oiling agent, the pressure adjusting assembly (212) comprises a pressure adjusting cylinder (2120), a pressure adjusting electric push rod (2121) and a pressure adjusting plate (2122), the end part of the pressure adjusting cylinder (2120) is fixedly arranged on the side wall of the vertical shaft (11), the end part of the pressure adjusting cylinder (2120) far away from the vertical shaft (11) is communicated with the cavitation and crushing reaction box (211), the pressure adjusting electric push rod (2121) is fixedly arranged on the side wall of the vertical shaft (11), the pressure adjusting electric push rod (2121) is arranged inside the pressure adjusting cylinder (2120), the pressure adjusting plate (2122) is fixedly arranged on the end part of the pressure adjusting electric push rod (2121), the pressure adjusting plate (2122) is slidably attached inside the pressure adjusting cylinder (2120), the liquid circulation auxiliary crushing assembly (213) comprises a side wall liquid flow machine (2130) and a liquid flow axis machine (2131), the side wall liquid flow machines (2130) are arranged on the inner side wall of the cavitation and crushing reaction box (211) in an annular array, the axial center liquid flow machine (2131) is rotatably arranged in the center of the lower wall of the cross beam (2111), the side wall liquid flow machine (2130) comprises a side wall stirring fan (2132) and a side wall liquid flow motor (2133), the side wall liquid flow motor (2133) is fixedly arranged on the inner side wall of the cavitation and crushing reaction box (211), the output ends of the side wall poking fan (2132) and the side wall liquid flow motor (2133) are coaxially and fixedly connected, the axial center liquid flow motor (2131) comprises an axial center liquid flow motor (2134) and an axial center liquid flow fan (2135), the axial flow motor (2134) is fixedly arranged on the lower wall of the cross beam (2111), the axial flow fan (2135) is rotatably arranged on the bottom wall in the cavitation and fragmentation reaction box (211), the output end of the axial center liquid flow fan (2135) is coaxially and fixedly connected with the output end of the axial center liquid flow motor (2134).

3. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 2, characterized in that: the ultrasonic cavitation generating device (22) comprises an ultrasonic generator (221) and an ultrasonic probe (222), wherein the ultrasonic generator (221) is fixedly arranged on the outer lower wall of the cavitation and fragmentation reaction box (211), the ultrasonic probe (222) penetrates through the bottom wall of the cavitation and fragmentation reaction box (211), and the end part of the ultrasonic probe (222) is arranged inside the cavitation and fragmentation reaction box (211).

4. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 3, characterized in that: the conveying, freezing and primary crushing mechanism (4) comprises a conveying box (41), a spraying and freezing device (42) and a multi-layer rotary-cut centrifugal dispersing device (43), the conveying box (41) is fixedly arranged on the upper wall of the equipment box body (1), the spraying and freezing device (42) penetrates through the side wall of the conveying box (41) and is arranged on the upper wall of the equipment box body (1), the multi-layer rotary-cut centrifugal dispersing device (43) is arranged at the upper end of a vertical shaft (11), the multi-layer rotary-cut centrifugal dispersing device (43) is in through connection with a nanofiber receiving groove (2110), the conveying box (41) comprises a fiber placing channel (411) and a fiber conveying belt (412), the fiber placing channel (411) is fixedly arranged on the upper wall of the equipment box body (1), the fiber conveying belt (412) is symmetrically arranged on the upper and lower walls inside the fiber placing channel (411), and the spraying and freezing device (42) comprises a spraying and freezing cylinder body (421), A liquid nitrogen storage tank (422) and a freezing opposite-spraying component (423), wherein the opposite-spraying freezing cylinder (421) is fixedly arranged on the upper wall of the equipment box body (1) in a penetrating way, the opposite-spraying freezing cylinder (421) is communicated with the fiber placing channel (411), the liquid nitrogen storage tank (422) is fixedly arranged on the upper wall of the equipment box body (1), the freezing opposite-spraying component (423) is fixedly arranged on the side wall of the opposite-spraying freezing cylinder body (421) in a penetrating way, the freezing and opposite spraying assembly (423) comprises a freezing and crushing delivery pipe (4230) and a freezing and crushing spray head (4231), the freezing and crushing nozzles (4231) are symmetrically arranged on the side wall of the opposite-spraying freezing cylinder body (421) in a penetrating way, the freezing and crushing delivery pipe (4230) penetrates through the side wall of the liquid nitrogen storage tank (422), the end part of the freezing and crushing delivery pipe (4230) far away from the liquid nitrogen storage tank (422) is communicated with a freezing and crushing spray head (4231), and a freezing and crushing liquid nitrogen electromagnetic valve (4232) is arranged in the middle of the freezing and crushing delivery pipe (4230).

5. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 4, wherein: the low-temperature oil path circulating device (23) comprises a liquid nitrogen coupling conveying assembly (231) and a liquid nitrogen cooling assembly (232), the liquid nitrogen coupling conveying assembly (231) is slidably sleeved on the outer side wall of the opposite-spraying freezing cylinder body (421), the liquid nitrogen cooling assembly (232) is fixedly arranged on the side wall of the cavitation crushing reaction box (211), the liquid nitrogen coupling conveying assembly (231) comprises an oil path cooling conveying pipe (2310) and a conveying pipe supporting lifting frame (2311), the conveying pipe supporting lifting frame (2311) is slidably sleeved on the outer side wall of the opposite-spraying freezing cylinder body (421), the oil path cooling conveying pipe (2310) is arranged on the upper wall of the conveying pipe supporting lifting frame (2311), the end part of the oil path cooling conveying pipe (2310) penetrates through the side wall of the liquid nitrogen storage tank (422), and a conveying pipe lifting electric push rod (2312) is arranged on the conveying pipe supporting lifting frame (2311) close to the lower wall of the opposite-spraying freezing cylinder body (421), the end part of the conveying pipe lifting electric push rod (2312) is fixedly connected with the upper wall of the equipment box body (1), liquid nitrogen conveying coupling spray heads (2313) are arranged on the conveying pipe supporting lifting frame (2311) in an annular array mode, the end part of the conveying pipe supporting lifting frame (2311) is far away from the opposite spraying freezing cylinder body (421), the oil way cooling conveying pipe (2310) is communicated with the liquid nitrogen conveying coupling spray heads (2313) respectively, and an oil way cooling liquid nitrogen electromagnetic valve (2314) is arranged in the middle of the oil way cooling conveying pipe (2310).

6. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 5, characterized in that: the centrifugal oil seal separation and filtration device (31) comprises a semi-permeable filtration collection component (311) and a centrifugal oil liquid relay return component (313), the semi-permeable filtration collection component (311) is arranged on the side wall of the cavitation and fragmentation reaction box (211), the centrifugal oil liquid relay return component (313) is arranged on the side wall of the semi-permeable filtration collection component (311), the semi-permeable filtration collection component (311) comprises a semi-permeable filtration tube (3110) and a spiral lifting transmission packing auger (3111), the semi-permeable filtration tube (3110) is communicated with the side wall of the cavitation and fragmentation reaction box (211) far away from a vertical shaft (11), the spiral lifting transmission packing auger (3111) is rotatably arranged inside the semi-permeable filtration tube (3110), the side wall of the cavitation and fragmentation reaction box (211) far away from the semi-permeable filtration tube (3110) is provided with a semi-permeable filtration wall (3112), and the surface array of the semi-permeable filtration wall (3112) is provided with a centrifugal through hole (3113), semi-permeable filter wall (3112) inside is equipped with semi-permeable cellophane (3114), semi-permeable cellophane (3114) pass finish centrifugation through-hole (3113), semi-permeable cartridge filter (3110) inside wall top is equipped with lift power board (3115), lift power board (3115) central authorities run through and are equipped with worm coupling screw hole (3116), semi-permeable cartridge filter (3110) lateral wall top is run through and is equipped with fibre and collects through-hole (3117), spiral lift conveying auger (3111) is including conveying auger axle (3118) and auger power motor (3119), conveying auger axle (3118) rotates and locates the inside diapire of cartridge filter (3110), conveying auger axle (3118) rotates and locates inside worm coupling screw hole 3116 inside, auger power motor (3119) are fixed and are located the inside upper wall of semi-permeable cartridge filter (3110), conveying auger axle (3118) is coaxial fixed in proper order from bottom to top and is equipped with nanofiber tray (3120), Helical blade (3121), finish sealed dish (3122), lift power worm (3123) and fibre collect power gear (3124), the slip laminating of nanofiber tray (3120) and semi-permeable cartridge filter (3110) inside lateral wall below, helical blade (3121) outside and semi-permeable cartridge filter (3110) inside wall middle part slip laminating, finish sealed dish (3122) and semi-permeable cartridge filter (3110) inside wall top slip laminating, lift power worm (3123) and worm coupling screw (3116) inside wall meshing, auger power motor (3119) output coaxial fixed be equipped with flood dragon drive gear (3125), flood dragon drive gear (3125) and fibre are collected power gear (3124) meshing.

7. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 6, characterized in that: the centrifugal oil liquid relay return assembly (313) comprises a centrifugal oil liquid temporary storage box (3130), an oil liquid return pump (3131) and an oil liquid return pipe (3132), the centrifugal oil liquid temporary storage box (3130) is arranged on the side wall of the semi-permeable filter cylinder (3110), the semi-permeable filter wall (3112) is arranged at the joint of the centrifugal oil liquid temporary storage box (3130) and the semi-permeable filter cylinder (3110), the oil liquid return pump (3131) is arranged on the outer lower wall of the centrifugal oil liquid temporary storage box (3130), the oil liquid return pipe (3132) is arranged on the outer lower wall of the centrifugal oil liquid temporary storage box (3130) and the cavitation and crushing reaction box (211), the centrifugal oil liquid temporary storage box (3130), the oil liquid return pump (3131), the oil liquid return pipe (3132) and the cavitation and crushing reaction box (211) are sequentially connected in a penetrating manner, and an one-way oil filling hole (3133) is arranged on the upper wall of the centrifugal oil liquid temporary storage box (3130).

8. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 7, wherein: the ultrasonic atomization drying and dispersing device (32) comprises an atomization dispersion box (321), ultrasonic atomization sheets (322) and an airflow dispersion assembly (323), the atomization dispersion box (321) is fixedly arranged on the upper wall of a centrifugal oil temporary storage box (3130), the ultrasonic atomization sheets (322) are fixedly arranged on the side wall of the atomization dispersion box (321) in an array distribution manner, the airflow dispersion assembly (323) is arranged on the inner side wall of the atomization dispersion box (321), the atomization dispersion box (321) is in through connection with a semi-permeable barrel (3110) through a fiber collection through hole (3117), the inner bottom wall of the atomization dispersion box (321) is provided with a condensation oil guide inclined plate (3210) and a condensation oil collection semi-through hole (3211), the condensation oil collection semi-through hole (3211) is arranged on the bottom wall of the atomization dispersion box (321) close to the filter barrel, the upper wall of the atomization dispersion box (321) is rotatably provided with a material taking sealing cover plate (3212), the ultrasonic atomization sheet (322) is electrically connected with the ultrasonic generator (221), the airflow dispersion assembly (323) comprises colliding turbulence blades (3230) and a turbulence motor (3231), the turbulence motor (3231) is symmetrically arranged on opposite side walls in the atomization dispersion box (321), and output ends of the colliding turbulence blades (3230) and the turbulence motor (3231) are coaxially and fixedly connected.

9. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 8, characterized in that: the multilayer rotary-cut centrifugal dispersion device (43) comprises a high-speed rotary-cut crushing assembly (431), a rotary receiving cavity (432) and a horizontal dispersion pipe (433), wherein the rotary receiving cavity (432) is fixedly arranged at the upper end of a vertical shaft (11), the upper wall of the rotary receiving cavity (432) is rotatably connected with a spraying freezing cylinder body (421), the high-speed rotary-cut crushing assembly (431) is arranged on the upper wall inside the rotary receiving cavity (432), the high-speed rotary-cut crushing assembly (431) is arranged below a freezing spraying assembly (423), an annular array of the horizontal dispersion pipe (433) is arranged on the side wall of the rotary receiving cavity (432) in a penetrating manner, the end part, far away from the rotary receiving cavity (432), of the horizontal dispersion pipe (433) is connected with the upper end of a nanofiber receiving groove (2110) in a penetrating manner, and the high-speed rotary-cut crushing assembly (431) comprises a rotary-cut motor (4310) and rotary-cut crushing auxiliary blowing blades (4311), the rotary cutting motor (4310) is fixedly arranged on the upper wall in the rotary receiving cavity (432) in an annular array mode, and the rotary cutting crushing auxiliary blowing blades (4311) are coaxially and fixedly connected with the output end of the rotary cutting motor (4310).

10. The oil-sealed nano PVA fiber production crushing device based on the cavitation effect as claimed in claim 9, characterized in that: the middle lower part of the vertical shaft (11) is coaxially and fixedly provided with a crushing and separating base (111), the cavitation crushing reaction box (211), the semi-permeable filter cartridge (3110) and the centrifugal oil agent temporary storage box (3130) are sequentially and fixedly arranged on the upper wall of the crushing and separating base (111) from near to far away from the vertical shaft (11), the end part of the crushing and separating base (111) far away from the vertical shaft (11) is provided with a magnetic absorption speed reducing block (1110), a centrifugal power gear (112) is coaxially and fixedly arranged at the lower end of the vertical shaft (11), a centrifugal power motor (12) is arranged on the bottom wall in the equipment box body (1), a centrifugal driving gear (121) is coaxially and fixedly arranged at the output end of the centrifugal power motor (12), the centrifugal driving gear (121) is meshed with the centrifugal power gear (112), the upper wall of the equipment box body (1) is provided with transparent material taking covers (13) in an annular array, the static position magnetic blocks (14) are arranged on the side wall of the inner wall of the equipment box body (1) in an annular array.