阅读说明：本技术 一种利用超声波的废纸制浆系统 (Utilize ultrasonic waste paper slurrying system ) 是由 刘洁 黄爱林 于 2020-12-16 设计创作，主要内容包括：本发明提出了一种利用超声波的废纸制浆系统,涉及废纸制浆设备技术领域。一种利用超声波的废纸制浆系统,包括散包机、搓磨分丝机、超声波反应器,上述搓磨分丝机分别与上述散包机和上述超声波反应器连通,上述散包机设有用于给上述散包机添水的喷水组件。采用本发明,废纸制浆系统采用超声波技术将废纸制成纸浆,纤维润胀帚化、少切断,如此纤维保持原有的强度,物理性能良好。(The invention provides a waste paper pulping system utilizing ultrasonic waves, and relates to the technical field of waste paper pulping equipment. A waste paper pulping system utilizing ultrasonic waves comprises a bale breaker, a rubbing and grinding filament separating machine and an ultrasonic reactor, wherein the rubbing and grinding filament separating machine is respectively communicated with the bale breaker and the ultrasonic reactor, and the bale breaker is provided with a water spraying assembly used for adding water to the bale breaker. By adopting the invention, the waste paper pulping system adopts the ultrasonic technology to prepare the waste paper into the paper pulp, and the fiber is swollen and broomed and cut off less, so the fiber keeps the original strength and has good physical property.)

1. A waste paper pulping system using ultrasonic waves is characterized in that: the automatic tobacco shred scattering machine comprises a bale breaking machine, a twisting and grinding shred dividing machine and an ultrasonic reactor, wherein the twisting and grinding shred dividing machine is respectively communicated with the bale breaking machine and the ultrasonic reactor, and the bale breaking machine is provided with a water spraying assembly used for adding water to the bale breaking machine.

2. The waste paper pulping system using ultrasonic waves of claim 1, wherein: the ultrasonic reactor comprises a reaction box, an ultrasonic generator and an ultrasonic transducer, wherein a reaction chamber is arranged in the reaction box; the ultrasonic generator is connected with the ultrasonic transducer, and the ultrasonic transducer is communicated with the reaction chamber; the rubbing and milling filament dividing machine is communicated with the reaction chamber.

3. The waste paper pulping system using ultrasonic waves of claim 2, wherein: a plurality of reaction chambers are arranged in the reaction box, are arranged up and down and are communicated with each other; the reaction chamber at the bottom is provided with a feeding pipe which is communicated with the rubbing and yarn dividing machine; the reaction chamber at the top is provided with a discharge pipe; the number of the ultrasonic generators and the ultrasonic transducers is multiple, any one of the ultrasonic generators is connected with one of the ultrasonic transducers, and one of the ultrasonic transducers is correspondingly arranged in any one of the reaction chambers.

4. The waste paper pulping system using ultrasonic waves of claim 3, wherein: the reaction chamber at the bottom is provided with a material discharging pipe, and the material discharging pipe is provided with a valve.

5. The waste paper pulping system using ultrasonic waves of claim 1, wherein: a coarse pulp pool is arranged between the rubbing and grinding filament separating machine and the ultrasonic reactor, the rubbing and grinding filament separating machine is provided with a material outlet, and the coarse pulp pool is arranged below the material outlet; the device also comprises a first feeding pump, wherein two ends of the first feeding pump are respectively communicated with the coarse pulp tank and the ultrasonic reactor.

6. The waste paper pulping system using ultrasonic waves of claim 1, wherein: the automatic bale breaker is characterized by further comprising a belt conveyor, wherein the discharge end of the belt conveyor is arranged above the bale breaker.

7. The waste paper pulping system using ultrasonic waves of claim 6, wherein: the belt conveyor is provided with an electromagnetic iron remover.

8. The waste paper pulping system using ultrasonic waves of claim 1, wherein: the ultrasonic reactor also comprises a pressure screen, and the pressure screen is communicated with the ultrasonic reactor.

9. The waste paper pulping system using ultrasonic waves of claim 8, wherein: a mixing pool is arranged between the pressure screen and the ultrasonic reactor, and the ultrasonic reactor is communicated with the mixing pool; the two ends of the second feeding pump are respectively communicated with the mixing pool and the pressure screen.

10. The waste paper pulping system using ultrasonic waves of claim 1, wherein: the adjustable range of the working frequency of the rubbing and grinding devillicating machine is 0-1500rpm, and the range of the coarse pulp beating degree of the rubbing and grinding devillicating machine is 15-20 DEG SR.

Technical Field

The invention relates to the technical field of waste paper pulping equipment, in particular to a waste paper pulping system utilizing ultrasonic waves.

Background

The paper pulp is a fibrous substance prepared by using plant fibers as raw materials through different processing methods. Mechanical pulp, chemical pulp and chemimechanical pulp can be classified according to the processing method; the fiber raw materials can also be divided into wood pulp, straw pulp, hemp pulp, reed pulp, cane pulp, bamboo pulp, rag pulp and the like according to the used fiber raw materials. And can be divided into refined pulp, bleached pulp, unbleached pulp, high-yield pulp, semi-chemical pulp and the like according to different purities. Are commonly used in the manufacture of paper and paperboard. Refined pulp is often used as a raw material for producing cellulose derivatives such as cellulose esters and cellulose ethers, in addition to specialty paper. Also used in the fields of artificial fiber, plastic, paint, film, gunpowder and the like.

At present, the waste paper pulping line for wrapping pulp paper mainly comprises a pulper, a two-section high-concentration slag separator, a five-section low-concentration slag separator, a three-section coarse screen, a three-section fine screen, a multi-disc thickener, a two-section pressure screen and the like. The method has the advantages of multiple devices, long flow, large water consumption, large loss and high power consumption. The impurities are broken while the traditional pulping fiber is broken and cut. The cutting strength of the fiber is reduced due to damage, and the impurities are crushed, so that the treatment difficulty of subsequent equipment is increased. Severely restricting the economic benefit, social benefit and environmental benefit of enterprises.

Disclosure of Invention

The invention aims to provide a waste paper pulping system utilizing ultrasonic waves, which adopts the ultrasonic technology to make waste paper into paper pulp, and the fibers are swelled and broomed and cut less, so that the fibers maintain the original strength and have good physical properties.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a waste paper pulping system using ultrasonic waves, which comprises a bale breaker, a twisting and grinding filament separating machine and an ultrasonic reactor, wherein the twisting and grinding filament separating machine is respectively communicated with the bale breaker and the ultrasonic reactor, and the bale breaker is provided with a water spraying assembly used for adding water to the bale breaker.

Further, in some embodiments of the present invention, the ultrasonic reactor includes a reaction chamber, an ultrasonic generator, and an ultrasonic transducer, and the reaction chamber is inside the reaction chamber; the ultrasonic generator is connected with the ultrasonic transducer, and the ultrasonic transducer is communicated with the reaction chamber; the rubbing and grinding filament separating machine is communicated with the reaction chamber.

Further, in some embodiments of the present invention, a plurality of reaction chambers are disposed in the reaction chamber, the plurality of reaction chambers are disposed up and down, and the plurality of reaction chambers are communicated with each other; the reaction chamber at the bottom is provided with a feeding pipe which is communicated with the rubbing and yarn dividing machine; the reaction chamber at the top is provided with a discharge pipe; the number of the ultrasonic generators and the ultrasonic transducers is multiple, any one of the ultrasonic generators is connected with one of the ultrasonic transducers, and one of the ultrasonic transducers is correspondingly arranged in any one of the reaction chambers.

Further, in some embodiments of the present invention, the reaction chamber at the bottom is provided with a discharge pipe, and the discharge pipe is provided with a valve.

Further, in some embodiments of the present invention, a coarse pulp tank is disposed between the rubbing and splitting machine and the ultrasonic reactor, the rubbing and splitting machine is provided with a material outlet, and the coarse pulp tank is disposed below the material outlet; the device also comprises a first feeding pump, wherein two ends of the first feeding pump are respectively communicated with the coarse pulp tank and the ultrasonic reactor.

Further, in some embodiments of the present invention, the bale breaker further comprises a belt conveyor, and a discharge end of the belt conveyor is disposed above the bale breaker.

Further, in some embodiments of the present invention, the belt conveyor is provided with an electromagnetic iron remover.

Further, in some embodiments of the present invention, the ultrasonic reactor further comprises a pressure screen, and the pressure screen is communicated with the ultrasonic reactor.

Further, in some embodiments of the present invention, a mixing tank is disposed between the pressure screen and the ultrasonic reactor, and the ultrasonic reactor is communicated with the mixing tank; the two ends of the second feeding pump are respectively communicated with the mixing pool and the pressure screen.

Further, in some embodiments of the present invention, the adjustable range of the operating frequency of the rubbing and milling filament-separating machine is 0-1500rpm, and the range of the beating degree of the coarse pulp of the rubbing and milling filament-separating machine is 15-20 ° SR.

Compared with the prior art, the embodiment of the invention at least has the following advantages or beneficial effects:

the embodiment of the invention provides a waste paper pulping system utilizing ultrasonic waves, which comprises a bale breaker, a twisting and grinding filament separator and an ultrasonic reactor, wherein the twisting and grinding filament separator is respectively communicated with the bale breaker and the ultrasonic reactor, and the bale breaker is provided with a water spraying assembly for adding water to the bale breaker.

When the waste paper bag breaking machine is in actual use, the waste paper bag is placed into the bag breaking machine, the bag breaking machine breaks the waste paper bag into paper scraps, and water is sprayed to the bag breaking machine through the water spraying assembly to soak and soften the paper scraps; the soaked and softened paper scraps enter a rubbing and grinding separator, and the rubbing and grinding separator further crushes the paper scraps to enable the paper scraps to become smaller fragments and form coarse pulp.

The coarse pulp enters an ultrasonic reactor, the ultrasonic wave generated by the ultrasonic reactor is used for treating the coarse pulp, the waste paper is made into paper pulp by utilizing the high-frequency vibration of the ultrasonic wave, the fiber is swelled and broomed and cut off less, so the fiber keeps the original strength and has good physical property.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a wastepaper pulping system according to an embodiment of the present invention;

FIG. 2 is a front view of an ultrasonic reactor provided by an embodiment of the present invention;

fig. 3 is a sectional view of a reaction chamber according to an embodiment of the present invention.

Icon: 1-bale breaking machine; 2-rubbing and grinding the filament dividing machine; 3-a water spray assembly; 4-a reaction box; 5-ultrasonic generator; 6-ultrasonic transducer; 7-a reaction chamber; 8-feeding pipe; 9-a discharge pipe; 10-a discharge pipe; 11-a coarse pulp tank; 12-a first feed pump; 13-a belt conveyor; 14-a pressure screen; 15-a mixing tank; 16-second feeding pump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not require that the components be absolutely horizontal or vertical, but may be slightly inclined. Such as "horizontal" simply means that its orientation is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" represents at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1-3, fig. 1 is a schematic structural diagram of a wastepaper pulping system according to an embodiment of the present invention; FIG. 2 is a front view of an ultrasonic reactor according to an embodiment of the present invention; fig. 3 is a sectional view of a reaction chamber 4 according to an embodiment of the present invention.

The embodiment provides a waste paper pulping system using ultrasonic waves, which comprises a bale breaker 1, a twisting and grinding filament separator 2 and an ultrasonic reactor, wherein the twisting and grinding filament separator 2 is respectively communicated with the bale breaker 1 and the ultrasonic reactor, and the bale breaker 1 is provided with a water spraying assembly 3 for adding water to the bale breaker 1.

The ultrasonic wave is a sound wave with frequency higher than 20000Hz, and it has good directivity, strong reflection capability, easy to obtain more concentrated sound energy, and the propagation distance in water is far longer than that in air, and it can be used for distance measurement, speed measurement, cleaning, welding, breaking stone, sterilization, etc. The method has a plurality of applications in medicine, military, industry and agriculture. Ultrasound is named because its lower frequency limit exceeds the upper human hearing limit.

When the waste paper bag breaking machine is in practical use, the waste paper bag is placed into the bag breaking machine 1, the bag breaking machine 1 breaks the waste paper bag into paper scraps, and water is sprayed to the bag breaking machine 1 through the water spraying assembly 3 to soak and soften the paper scraps; the soaked and softened paper scraps enter the rubbing and grinding separator 2, and the rubbing and grinding separator 2 further crushes the paper scraps to change the paper scraps into smaller fragments to form coarse pulp.

The coarse pulp enters an ultrasonic reactor, the ultrasonic wave generated by the ultrasonic reactor is used for treating the coarse pulp, the waste paper is made into paper pulp by utilizing the high-frequency vibration of the ultrasonic wave, the fiber is swelled and broomed and cut off less, so the fiber keeps the original strength and has good physical property.

Optionally, the bale breaking machine 1 of the embodiment adopts a waste paper bale breaking machine, after the packaged waste paper is transported to the material preparation and pulping workshop, the packaged waste paper is directly placed on a feeding chain plate conveyor by a forklift without unpacking and sorting, firstly, the binding iron wires are manually cut off and removed, the feeding chain plate conveyor transports the waste paper bales to a bale breaking screening slag remover at a speed of 2-15 m/min, and the paper bales then enter the machine through a feeding hopper at a feeding port of the bale breaking slag remover. The specification size of the bale breaking machine 1 for waste paper bale breaking is divided into specifications of phi 3000 multiplied by 9300mm, phi 3250 multiplied by 9300mm, 3500 multiplied by 10300mm, 3750 multiplied by 11000mm and the like, and the processing capacity is 200 t/d-2000 t/d. Spiral sheets are fixed on the inner wall of a screen drum of a bale breaking screening slag remover of the bale breaking machine 1 along the spiral line direction, 6 equal-distance lug lifting objects are fixed on the spiral sheet of each circumference, the inner spiral is used for pushing waste paper from the inlet to the outlet, and the lugs are used for stirring and rolling waste paper bales to achieve the purpose of bale breaking.

Alternatively, the double-screw rubbing and separating machine 2 of the present embodiment may be a double-screw rubbing and separating machine, which is suitable for the crude pulp of raw materials such as wood chips, bamboo chips, brush wood, rice and wheat straw, and can directly process the raw materials into velvet-like fibers, and can be directly made into paper pulp by matching with a high-concentration pulp grinder and a refiner. No chemical is needed in the production, the environmental pollution is small, and the pulping equipment meets the environmental protection requirement. It can also be used for semi-chemical mechanical pulp. A double-helix rubbing and separating machine mainly comprises a pulping chamber, a base, a feeding device, a transmission device, a main motor and the like. After the motor is decelerated by the speed reducer, the pulp is pushed into the pulp grinding chamber by a screw and is disintegrated into velvet-shaped fibers under the strong rubbing of the grinding discs. The machine has simple structure, convenient installation and easy maintenance.

Optionally, the water spraying assembly 3 of the present embodiment employs a water pipe, which conveys tap water into the bale breaking machine 1. Optionally, both the rubbing and devillicating machine 2 and the ultrasonic reactor of the present embodiment may be provided with a water spray assembly 3 for adding water into the slurry.

As shown in fig. 1 to 3, in some embodiments of the present invention, the ultrasonic reactor includes a reaction chamber 4, an ultrasonic generator 5, and an ultrasonic transducer 6, wherein a reaction chamber 7 is formed inside the reaction chamber 4; the ultrasonic generator 5 is connected with the ultrasonic transducer 6, and the ultrasonic transducer 6 is communicated with the reaction chamber 7; the rubbing and filament-separating machine 2 is communicated with the reaction chamber 7.

The ultrasonic generator 5, also called ultrasonic driving power supply, electronic box, ultrasonic controller, is an important component of the high-power ultrasonic system. The ultrasonic generator 5 is used for converting the commercial power into a high-frequency alternating current signal matched with the ultrasonic transducer 6 and driving the ultrasonic transducer 6 to work. The high-power ultrasonic power supply generally adopts a circuit form of a switching power supply in view of conversion efficiency.

The function of the ultrasonic transducer 6 is to convert the input electric power into mechanical power (i.e., ultrasonic waves) and transmit the mechanical power, and a small part of the power is consumed by itself.

The invention comprises a reaction box 4, an ultrasonic generator 5 and an ultrasonic transducer 6 by arranging an ultrasonic reactor, wherein a reaction chamber 7 is arranged in the reaction box 4; the ultrasonic generator 5 is connected with the ultrasonic transducer 6, and the ultrasonic transducer 6 is communicated with the reaction chamber 7; the fiber rubbing and splitting machine 2 is communicated with the reaction chamber 7, the coarse pulp enters the reaction chamber 7, ultrasonic waves are generated through the work of the ultrasonic generator 5 and the ultrasonic transducer 6 to treat the coarse pulp in the reaction chamber 7, waste paper is made into paper pulp through the high-frequency vibration of the ultrasonic waves, fibers are swelled and broomed, few fibers are cut off, and the fibers keep the original strength and have good physical properties.

As shown in fig. 1 to 3, in some embodiments of the present invention, a plurality of reaction chambers 7 are disposed inside the reaction chamber 4, the plurality of reaction chambers 7 are disposed up and down, and the plurality of reaction chambers 7 are communicated with each other; the reaction chamber 7 at the bottom is provided with a feeding pipe 8, and the feeding pipe 8 is communicated with the rubbing and filament dividing machine 2; the reaction chamber 7 at the top is provided with a discharge pipe 9; the number of the ultrasonic generators 5 and the ultrasonic transducers 6 is plural, any one of the ultrasonic generators 5 is connected with one of the ultrasonic transducers 6, and any one of the ultrasonic transducers 6 is provided corresponding to any one of the reaction chambers 7.

According to the invention, a plurality of reaction chambers 7 are arranged in the reaction box 4, and the reaction chambers 7 are arranged up and down, so that coarse slurry enters the reaction chambers 7 from a feeding pipe 8 positioned at the bottom of the reaction chambers 7, and gradually overflows upwards along with the increase of the coarse slurry until the coarse slurry is discharged out of the reaction box 4 from a discharging pipe 9 at the top; meanwhile, the ultrasonic transducers 6 corresponding to the reaction boxes 4 generate ultrasonic waves to process the coarse pulp in each reaction chamber 7, so that the processing efficiency of the coarse pulp is improved. Alternatively, the reaction chamber 4 of the present embodiment is internally partitioned into a plurality of reaction chambers 7 by a plurality of horizontally disposed partitions, each of which is provided with a through hole for communicating the respective reaction chambers 7.

As shown in fig. 1-3, in some embodiments of the invention, said reaction chamber 7 at said bottom is provided with a discharge conduit 10, said discharge conduit 10 being provided with a valve.

The present invention is provided with a discharge pipe 10, and the discharge pipe 10 is provided with a valve, so that the valve is closed when in operation. When the treatment of the brown stock is completed, the valve may be opened to discharge the brown stock remaining in the reaction chamber 7 through the discharge pipe 10.

As shown in fig. 1 to 3, in some embodiments of the present invention, a coarse pulp tank 11 is disposed between the rubbing and filament-separating machine 2 and the ultrasonic reactor, the rubbing and filament-separating machine 2 is provided with a material outlet, and the coarse pulp tank 11 is disposed below the material outlet; and the device also comprises a first feeding pump 12, and two ends of the first feeding pump 12 are respectively communicated with the coarse pulp tank 11 and the ultrasonic reactor.

A coarse pulp tank 11 is arranged between a rubbing and grinding filament separating machine 2 and the ultrasonic reactor, the rubbing and grinding filament separating machine 2 is provided with a material outlet, and the coarse pulp tank 11 is arranged below the material outlet; the shredded paper blocks after passing through the twisting and grinding silk separating machine 2 vertically drop from the material outlet to enter the coarse pulp tank 11, and then the coarse pulp in the coarse pulp tank 11 is conveyed into the ultrasonic reactor through the first feeding pump 12, so that the speed and the volume of the coarse pulp entering the ultrasonic reactor can be conveniently adjusted.

Optionally, the first feeding pump 12 of this embodiment employs a variable frequency water pump, so as to adjust the flow rate of the crude slurry entering the ultrasonic reactor, and ensure the residence time and concentration of the slurry in the ultrasonic reactor. The working concentration of the ultrasonic reactor is controlled below 2%, the retention time is 20min, the beating degree of the pulp reaches the 400 DEG SR pulping standard, and the pulping process of the pulp is completed.

As shown in fig. 1 to 3, in some embodiments of the present invention, the bale breaker further comprises a belt conveyor 13, and a discharge end of the belt conveyor 13 is disposed above the bale breaker 1.

According to the invention, the belt conveyor 13 is arranged, and the discharge end of the belt conveyor 13 is arranged above the bale breaking machine 1, so that waste paper bags can be conveniently placed on the belt conveyor 13, the waste paper bags are conveyed into the bale breaking machine 1 through the belt conveyor 13, and the waste paper bags are conveniently transported.

As shown in fig. 1 to 3, in some embodiments of the present invention, the belt conveyor 13 is provided with an electromagnetic iron remover.

The electromagnetic iron remover is widely used in metallurgy, mines, coal preparation plants, power plants, ceramics, glass, cement, building materials, chemical industry, food and feed processing industries, and in the emerging garbage treatment industry, the electromagnetic iron remover is also required to recover steel in wastes. The electromagnetic iron remover is used in various large-scale steel enterprises, metal mines, power plants, light industry, refractory materials and other industries, and plays a great role.

According to the invention, the belt conveyor 13 is provided with the electromagnetic iron remover, and the waste paper bag conveyed by the belt conveyor 13 can continuously absorb and discard iron by absorbing ferromagnetic impurities in materials by the electromagnetic iron remover when passing through the electromagnetic iron remover.

As shown in fig. 1-3, in some embodiments of the present invention, the ultrasonic reactor further comprises a pressure screen 14, wherein the pressure screen 14 is in communication with the ultrasonic reactor.

The pressure screen 14 adopts an up-flow structural design of bottom slurry inlet, bottom heavy slag discharge and top light slag discharge, light impurities and air in the slurry naturally rise to the top slag discharge port to be discharged, and the heavy impurities can settle to the bottom to be discharged once entering the machine body, so that the slurry is further screened conveniently.

Optionally, the pressure screen 14 of this embodiment adopts a 3.5mm hole screen, the working concentration is below 1%, the feeding pump adjusts the working concentration, and the pressure screen has a function of screening pulp to ensure the cleanliness of pulp besides the complete pulp at a uniform speed, so as to complete the pulp mixing function of the approach flow part of the paper machine.

As shown in fig. 1-3, in some embodiments of the present invention, a mixing tank 15 is disposed between the pressure screen 14 and the ultrasonic reactor, and the ultrasonic reactor is communicated with the mixing tank 15; and the device also comprises a second feeding pump 16, and two ends of the second feeding pump 16 are respectively communicated with the mixing pool 15 and the pressure screen 14.

A mixing pool 15 is arranged between the pressure screen 14 and the ultrasonic reactor, and the ultrasonic reactor is communicated with the mixing pool 15; and the two ends of the second feeding pump 16 are respectively communicated with the mixing tank 15 and the pressure screen 14, so that the pulp can enter the mixing tank 15 for further mixing, and the mixed pulp is conveyed into the pressure screen 14 through the second feeding pump 16.

Optionally, the second feed pump 16 of this embodiment is a variable frequency water pump, which facilitates regulation of the flow rate of the slurry into the pressure screen 14.

As shown in fig. 1 to fig. 3, in some embodiments of the present invention, the adjustable range of the operating frequency of the rubbing and grinding devillicating machine 2 is 0 to 1500rpm, and the range of the beating degree of the coarse pulp of the rubbing and grinding devillicating machine 2 is 15 to 20 ° SR.

In summary, an embodiment of the present invention provides a waste paper pulping system using ultrasonic waves, including a bale breaker 1, a grinding and separating machine 2, and an ultrasonic reactor, wherein the grinding and separating machine 2 is respectively communicated with the bale breaker 1 and the ultrasonic reactor, and the bale breaker 1 is provided with a water spraying assembly 3 for adding water to the bale breaker 1.

When the waste paper bag breaking machine is in practical use, the waste paper bag is placed into the bag breaking machine 1, the bag breaking machine 1 breaks the waste paper bag into paper scraps, and water is sprayed to the bag breaking machine 1 through the water spraying assembly 3 to soak and soften the paper scraps; the soaked and softened paper scraps enter the rubbing and grinding separator 2, and the rubbing and grinding separator 2 further crushes the paper scraps to change the paper scraps into smaller fragments to form coarse pulp.

The coarse pulp enters an ultrasonic reactor, the ultrasonic wave generated by the ultrasonic reactor is used for treating the coarse pulp, the waste paper is made into paper pulp by utilizing the high-frequency vibration of the ultrasonic wave, the fiber is swelled and broomed and cut off less, so the fiber keeps the original strength and has good physical property.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.