Intelligent Fiber Manufacturing System

Abstract

This patent relates to the technical field of wind turbine blade recycling and reuse, specifically an intelligent fiber production system, which includes a crusher, a planar vibrating screen, a return material mechanism, and several belt conveyors. A belt conveyor is installed at the inlet of the crusher for feeding. A mesh aperture adjustment mechanism is provided at the material outlet of the crusher. The material inlet of the planar vibrating screen is connected to the material outlet of the crusher through a belt conveyor. The planar vibrating screen is provided with several outlets, and several belt conveyors are respectively installed at several outlets. The several outlets include two qualified fiber bundle outlets, a fiber powder outlet, and an unqualified fiber bundle outlet. The return material mechanism is connected between the belt conveyor located at the unqualified fiber bundle outlet and the inlet of the crusher. This solution can monitor the crushing effect and finished product rate of the crusher in real time, and adjust the working frequency of the crusher and the discharge rate of the outlet according to the monitoring results, so as to ensure the finished product rate.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade recycling and reuse, specifically an intelligent fiber manufacturing system. Background Art

[0002] Wind turbine blades are mainly made of thermosetting materials and fiber materials, and generally have a large volume. When the wind turbine blades reach the end of their service life, they need to be processed. Currently, most enterprises only use manual cutting to cut them into relatively small blade blocks for reuse or disposal.

[0003] The recycling and reuse of wind turbine blades require multiple processes such as cutting, multi-stage crushing, cleaning, drying, and pulverizing of wind turbine blades, and finally form fiberglass fiber bundles and fiber powders that meet industrial requirements. The length and aspect ratio of the recycled fiberglass fiber bundles are the main factors to measure the value of the fiberglass fiber bundles. Therefore, it is necessary to prepare recycled fiberglass fiber bundles with qualified length and aspect ratio as much as possible. The main engine speed of the hammer mill and the reasonable screen hole area are important factors affecting the qualified length and aspect ratio of the fiberglass fiber bundles. Summary of the Invention

[0004] The present invention aims to provide an intelligent fiber manufacturing system to improve the fiber output rate of fiberglass fiber bundles with qualified length and aspect ratio.

[0005] To achieve the above objective, the basic solution of the present invention is as follows: The intelligent fiber manufacturing system includes a crusher, a horizontal gyratory screen, a return material mechanism, and several belt conveyors. A belt conveyor is installed at the inlet of the crusher for feeding. A mesh hole adjusting mechanism is provided at the material outlet of the crusher. The material inlet of the horizontal gyratory screen is connected to the material outlet of the crusher through a belt conveyor. The horizontal gyratory screen is provided with several outlets, and several belt conveyors are respectively installed at several outlets. The several outlets include two qualified fiber bundle outlets, one fiber powder outlet, and one unqualified fiber bundle outlet. The return material mechanism is connected between the belt conveyor located at the unqualified fiber bundle outlet and the inlet of the crusher.

[0006] Furthermore, it further includes several weighing sensors and a processor. The several weighing sensors are respectively installed on the belt conveyors at several outlets, and the several weighing sensors are all connected to the processor. The drive motor of the crusher is a four-stage frequency converter speed regulating motor. The drive motor of the crusher and the mesh hole adjusting mechanism are both connected to the processor. The processor controls the working frequency of the drive motor of the crusher and the mesh hole size of the mesh hole adjusting mechanism.

[0007] Further, the mesh adjustment structure includes two parallel screens and a micro hydraulic cylinder. The positions and quantities of the screen holes on the two screens correspond one by one. One of the screens is fixedly connected to the crusher, and the other screen is connected to the micro hydraulic cylinder and driven by the micro hydraulic cylinder. The micro hydraulic cylinder is connected to the processor.

[0008] Further, the normal operating speed of the drive motor of the crusher is 1200 revolutions per minute. At this time, the screen holes of the two screens are aligned; when the weighing sensor on the belt conveyor at the unqualified fiber bundle outlet detects that the proportion of the discharge weight at the unqualified fiber bundle outlet in the total weight of the four outlets is higher than 15% for more than 3 minutes, and at the same time, the weighing sensor on the belt conveyor at the fiber fines outlet detects that the proportion of the discharge weight in the total discharge weight of the four outlets is lower than 20% for more than 3 minutes, the processor controls the speed of the drive motor of the crusher to increase to 1400 revolutions per minute, and controls the micro hydraulic cylinder to drive the screen to move, so that the mesh holes of the two screens are staggered, reducing the screening rate of the two screens; when the weighing sensor on the belt conveyor at the unqualified fiber bundle outlet detects that the proportion of the discharge weight at the unqualified fiber bundle outlet in the total weight of the four outlets is lower than 10% for more than 3 minutes, and at the same time, the weighing sensor on the belt conveyor at the fiber fines outlet detects that the proportion of the discharge weight in the total discharge weight of the four outlets is higher than 25% for more than 3 minutes, the processor controls the speed of the drive motor of the crusher to return to the normal state of 1200 revolutions per minute, and controls the micro hydraulic cylinder to drive the screen to move, so that the screen holes of the two screens are aligned.

[0009] Further, the return material mechanism includes a return material high-pressure blower and a material conveying pipeline. The return material high-pressure blower is located above the belt conveyor at the unqualified fiber bundle outlet, and the material conveying pipeline is connected between the return material high-pressure blower and the inlet of the crusher.

[0010] Further, the crusher is also connected with a dust removal mechanism. The dust removal mechanism includes a pulse dust collector, an activated carbon filter, a dust removal fan and a dust removal pipeline. The dust removal pipeline is connected to the discharge port of the crusher, and the dust removal pipeline, the pulse dust collector, the activated carbon filter and the dust removal fan are connected in sequence.

[0011] The beneficial effects of this solution: This solution can monitor the crushing effect and yield of the crusher in real time, and adjust the working frequency of the crusher and the discharge rate of the outlet according to the monitoring results, so as to ensure the yield. Description of the Drawings

[0012] Figure 1 It is an elevation view of an embodiment of the present invention;

[0013] Figure 2 It is a schematic diagram of the state when the two screens in the embodiment of the present invention are staggered. Detailed implementation manners

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0015] The reference numerals in the accompanying drawings of the specification include: crusher 1, plane rotary screen 2, return material mechanism 3, belt conveyor 4, baler 5, screen mesh 7, pulse dust collector 8, activated carbon filter 9, dust removal fan 10, and dust removal pipeline 11.

[0016] Embodiment

[0017] Basically as shown in the attached Figure 1 figure: The intelligent fiber-making system includes a crusher 1, a plane rotary screen 2, a return material mechanism 3, several belt conveyors 4, four weighing sensors, and a processor. A belt conveyor 4 is installed at the inlet of the crusher 1 for feeding. A mesh adjustment mechanism is provided at the material outlet of the crusher 1. The material inlet of the plane rotary screen 2 is connected to the material outlet of the crusher 1 through a belt conveyor 4. The plane rotary screen 2 is provided with two qualified fiber bundle outlets, a fiber fines outlet, and an unqualified fiber bundle outlet. A belt conveyor 4 is installed at each of the four outlets. The return material mechanism 3 is connected between the belt conveyor 4 at the unqualified fiber bundle outlet and the inlet of the crusher 1. The return material mechanism 3 includes a return material high-pressure blower and a material conveying pipeline. The return material high-pressure blower is located above the belt conveyor 4 at the unqualified fiber bundle outlet. The material conveying pipeline is connected between the return material high-pressure blower and the inlet of the crusher 1. The belt conveyor 4 at the qualified fiber bundle outlet conveys the qualified fiber bundles to the baler 5 for baling. The belt conveyor 4 at the fiber fines outlet conveys the fiber fines to the pulverizer to make fiber powder;

[0018] The four weighing sensors are respectively installed on the belt conveyors 4 at the four outlets. The four weighing sensors are all connected to the processor. The drive motor of the crusher 1 is a four-level frequency converter speed control motor. The drive motor of the crusher 1 and the mesh adjustment mechanism are both connected to the processor. The processor controls the working frequency of the drive motor of the crusher 1 and the mesh size of the mesh adjustment mechanism. The mesh adjustment structure includes two parallelly arranged screen meshes 7 and a micro hydraulic cylinder. The positions and numbers of the screen holes on the two screen meshes 7 correspond to each other one by one. One of the screen meshes 7 is fixedly connected to the crusher 1, and the other screen mesh 7 is connected to the micro hydraulic cylinder and driven by the micro hydraulic cylinder. The micro hydraulic cylinder is connected to the processor.

[0019] The crusher 1 is also connected with a dust removal mechanism. The dust removal mechanism includes a pulse dust collector 8, an activated carbon filter 9, a dust removal fan 10 and a dust removal pipeline 11. The dust removal pipeline 11 is connected to the discharging port of the crusher 1, and the dust removal pipeline 11, the pulse dust collector 8, the activated carbon filter 9 and the dust removal fan 10 are connected in sequence.

[0020] The specific implementation process is as follows: The normal operating speed of the driving motor of the crusher 1 is 1200 revolutions per minute, and at this time, the sieve holes of the two sieve meshes 7 are aligned; when the weighing sensor on the belt conveyor 4 at the unqualified fiber bundle outlet detects that the proportion of the discharging weight at the unqualified fiber bundle outlet in the total weight of the four outlets is higher than 15% for more than 3 minutes, and at the same time, the weighing sensor on the belt conveyor 4 at the fiber fines outlet detects that the proportion of the discharging weight in the total discharging weight of the four outlets is lower than 20% for more than 3 minutes, the processor controls the speed of the driving motor of the crusher 1 to increase to 1400 revolutions per minute, and controls the micro hydraulic cylinder to drive the sieve mesh 7 to move, so that the mesh holes of the two sieve meshes 7 are staggered (as shown in Figure 2 ), reducing the screening rate of the two sieve meshes 7; when the weighing sensor on the belt conveyor 4 at the unqualified fiber bundle outlet detects that the proportion of the discharging weight at the unqualified fiber bundle outlet in the total weight of the four outlets is lower than 10% for more than 3 minutes, and at the same time, the weighing sensor on the belt conveyor 4 at the fiber fines outlet detects that the proportion of the discharging weight in the total discharging weight of the four outlets is higher than 25% for more than 3 minutes, the processor controls the speed of the driving motor of the crusher 1 to return to the normal state of 1200 revolutions per minute, and controls the micro hydraulic cylinder to drive the sieve mesh 7 to move, so that the sieve holes of the two sieve meshes 7 are aligned. This solution can monitor the crushing effect and yield of the crusher 1 in real time, and adjust the working frequency of the crusher 1 and the discharging rate of the outlet according to the monitoring results, so as to ensure the yield.

[0021] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0022] The above are only embodiments of the present invention. Specific structures and characteristics and other common knowledge in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention pertains before the filing date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to complete and implement this solution. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners and other records in the specification can be used to interpret the content of the claims.

Claims

1. An intelligent fiber manufacturing system, characterized in that: It includes a crusher, a horizontal gyratory screen, a return material mechanism and several belt conveyors. A belt conveyor is installed at the inlet of the crusher for feeding. A mesh adjusting mechanism is provided at the material outlet of the crusher. The material inlet of the horizontal gyratory screen is connected to the material outlet of the crusher through a belt conveyor. The horizontal gyratory screen is provided with several outlets. Several of the belt conveyors are respectively installed at several outlets. The several outlets include two qualified fiber bundle outlets, one fiber fines outlet and one unqualified fiber bundle outlet. The return material mechanism is connected between the belt conveyor at the unqualified fiber bundle outlet and the inlet of the crusher. It also includes several weighing sensors and a processor. The several weighing sensors are respectively installed on the belt conveyors at several outlets. The several weighing sensors are all connected to the processor. The drive motor of the crusher is a four-stage frequency converter speed regulating motor. The drive motor of the crusher and the mesh adjusting mechanism are both connected to the processor. The processor controls the working frequency of the drive motor of the crusher and the mesh size of the mesh adjusting mechanism. The mesh adjusting mechanism includes two parallel placed sieves and a micro hydraulic cylinder. The positions and quantities of the sieve holes on the two sieves correspond one by one. One of the sieves is fixedly connected to the crusher. The other sieve is connected to the micro hydraulic cylinder and driven by the micro hydraulic cylinder. The micro hydraulic cylinder is connected to the processor. The normal working speed of the drive motor of the crusher is 1200 revolutions per minute. At this time, the sieve holes of the two sieves are aligned. When the weighing sensor on the belt conveyor at the unqualified fiber bundle outlet detects that the proportion of the discharge weight at the unqualified fiber bundle outlet in the total discharge weight of the four outlets is higher than 15% for more than 3 minutes, and at the same time, the weighing sensor on the belt conveyor at the fiber fines outlet detects that the proportion of the discharge weight in the total discharge weight of the four outlets is lower than 20% for more than 3 minutes, the processor controls the speed of the drive motor of the crusher to increase to 1400 revolutions per minute, and controls the micro hydraulic cylinder to drive the sieve to move, so that the sieve holes of the two sieves are staggered, reducing the screening rate of the two sieves. When the weighing sensor on the belt conveyor at the unqualified fiber bundle outlet detects that the proportion of the discharge weight at the unqualified fiber bundle outlet in the total discharge weight of the four outlets is lower than 10% for more than 3 minutes, and at the same time, the weighing sensor on the belt conveyor at the fiber fines outlet detects that the proportion of the discharge weight in the total discharge weight of the four outlets is higher than 25% for more than 3 minutes, the processor controls the speed of the drive motor of the crusher to return to the normal state of 1200 revolutions per minute, and controls the micro hydraulic cylinder to drive the sieve to move, so that the sieve holes of the two sieves are aligned.

2. The intelligent fiber manufacturing system according to claim 1, wherein: The return material mechanism includes a return material high-pressure blower and a material conveying pipeline. The return material high-pressure blower is located above the belt conveyor at the unqualified fiber bundle outlet. The material conveying pipeline is connected between the return material high-pressure blower and the inlet of the crusher.

3. The intelligent fiber manufacturing system according to claim 2, wherein: The crusher is also connected with a dust removal mechanism, and the dust removal mechanism includes a pulse dust collector, an activated carbon filter, a dust removal fan and a dust removal pipeline. The dust removal pipeline is connected to the discharging port of the crusher, and the dust removal pipeline, the pulse dust collector, the activated carbon filter and the dust removal fan are connected in sequence.

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