Waste fan blade pyrolysis recovery system

Abstract

The invention relates to the field of fan blade recovery, aims to solve the problems of unstable recovery quality and poor recovery effect caused by easy interference of a pyrolysis environment in an existing blade pyrolysis recovery system, and particularly relates to a waste fan blade pyrolysis recovery system which comprises a pyrolysis control unit, an environment control unit and a result detection unit, a feedback adjusting unit and a preorder adjusting unit; according to the method, the pyrolysis completion degree and the fiber length are obtained by detecting the pyrolyzed product, standardized analysis is carried out according to the pyrolysis completion degree and the fiber length, and meanwhile, the pyrolysis environment is collected and compared in real time, and the environment standard reaching degree and the environment fluctuation degree are evaluated; the pyrolysis environment and the blade cutting size are subjected to cyclic feedback adjustment, so that in the operation process of the pyrolysis system, the pyrolysis process is continuously and automatically corrected according to the performance of a pyrolysis product, and the intelligent degree of pyrolysis work is improved.

Description

Technical Field

[0001] The invention relates to the field of fan blade recycling, and in particular to a waste fan blade pyrolysis recycling system. Background Art

[0002] With the rapid development of renewable energy, wind energy has become an indispensable part of the global energy structure. Wind turbine blades are mainly composed of glass fiber or carbon fiber reinforced thermosetting resin composite materials, and also contain some foam, balsa wood core material, adhesive and coating. Composite materials, as the main component of blades, occupy a major position in terms of both quantity and cost. In addition, thermosetting composite materials have stable physical and chemical properties and are difficult to decompose in the natural environment. If they are not disposed and utilized, they will cause great waste of resources and environmental pollution. The main utilization technologies currently developed include physical disassembly and recycling, energy utilization, chemical degradation and pyrolysis.

[0003] Therefore, an economical and efficient way to deal with waste fan blades has become an urgent problem to be solved. In order to achieve sustainable utilization of resources, an innovative waste fan blade pyrolysis recovery system has emerged. It converts waste fan blades into valuable resources through a series of precise control and regulation units, which not only reduces environmental pollution, but also improves resource utilization, and solves the problems of unstable recovery quality and poor recovery effect in existing blade recovery systems.

[0004] In view of the above technical problems, this application proposes a solution. Summary of the invention

[0005] In the present invention, the pyrolysis completion degree and fiber length are obtained by detecting the product after the pyrolysis is completed, and a standardized analysis is performed based on the pyrolysis completion degree and the fiber length. When the analysis result does not meet the standard, the pyrolysis environment and the blade cutting size are adjusted in a loop feedback manner. Therefore, during the operation of the pyrolysis system, the pyrolysis process is automatically corrected according to the performance of the pyrolysis product, thereby solving the problem that the pyrolysis environment in the existing blade pyrolysis recovery system is easily disturbed, resulting in unstable recovery quality and poor recovery effect, and a pyrolysis recovery system for waste fan blades is proposed.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A waste fan blade pyrolysis recovery system, comprising a pyrolysis control unit, wherein the pyrolysis control unit cuts the fan blades into fixed sizes to convert the fan blades into pyrolysis materials with fixed sizes;

[0008] An environmental control unit, wherein the environmental control unit detects the pyrolysis environment of the fan blades, and compares the detected pyrolysis environment of the fan blades with a set pyrolysis environment to obtain a pyrolysis coupling degree;

[0009] A result detection unit, which detects the fan blades after pyrolysis, and obtains the pyrolysis completion degree and fiber integrity through the detection equipment;

[0010] A feedback regulation unit, wherein the feedback regulation unit obtains the pyrolysis completion degree through the result detection unit, judges the pyrolysis result through the pyrolysis completion degree, obtains the pyrolysis coupling degree through the environment control unit, performs a comprehensive analysis on the pyrolysis coupling degree and the pyrolysis completion degree, and generates a pyrolysis regulation signal or a pyrolysis correction signal;

[0011] A pre-order adjustment unit, wherein the pre-order adjustment unit obtains the fiber integrity through the result detection unit, generates a size adjustment signal according to the fiber integrity, and sends the size adjustment signal to the pyrolysis control unit.

[0012] As a preferred embodiment of the present invention, the environmental control unit detects the pyrolysis environment to obtain pyrolysis environment parameters, wherein the pyrolysis environment parameters include gas atmosphere quantity and pyrolysis heating amount. The environmental control unit analyzes the gas atmosphere quantity with the set gas atmosphere standard to obtain the gas atmosphere ratio. The environmental control unit analyzes the pyrolysis heating amount with the set heating amount to obtain the heating ratio.

[0013] As a preferred embodiment of the present invention, the method for the environmental control unit to obtain the gas atmosphere quantity is:

[0014] The environmental control unit collects the oxygen content in the pyrolysis environment through a gas analyzer to obtain the gas oxygen content, and records the reciprocal of the gas oxygen content as the gas atmosphere quantity.

[0015] As a preferred embodiment of the present invention, the method for the environmental control unit to obtain pyrolysis heat supply is:

[0016] The environment control unit collects the temperature and gas volume of the high-temperature gas blown out in the pyrolysis environment, and records the product of the temperature and gas volume of the high-temperature gas as the pyrolysis heat supply.

[0017] As a preferred embodiment of the present invention, the environmental control unit collects the gas atmosphere quantity and the pyrolysis heat supply at a fixed frequency interval when the pyrolysis is in progress, so as to obtain multiple sets of gas atmosphere quantity and pyrolysis heat supply during the pyrolysis process;

[0018] The environmental control unit collects statistics on multiple groups of gas atmosphere quantities and calculates standard deviations of the gas atmosphere quantities to obtain gas atmosphere quantity fluctuations;

[0019] The environmental control unit counts multiple groups of pyrolysis heat supply and calculates the standard deviation of the pyrolysis heat supply to obtain the pyrolysis heat supply fluctuation;

[0020] The environmental control unit performs arithmetic averaging on multiple groups of gas atmosphere quantities to obtain a mean value of the gas atmosphere quantity, and calculates the ratio of the gas atmosphere quantity fluctuation to the gas atmosphere quantity mean, and records it as the gas atmosphere fluctuation ratio. Similarly, the environmental control unit also obtains the mean value of the pyrolysis heat supply, and calculates the ratio between the pyrolysis heat supply fluctuation and the pyrolysis heat supply mean, and records it as the pyrolysis heat supply fluctuation ratio.

[0021] As a preferred embodiment of the present invention, the environmental control unit compares the gas atmosphere mean with the set gas atmosphere standard. If the gas atmosphere mean is greater than the set gas atmosphere standard, the ratio of the gas atmosphere mean to the gas atmosphere standard is calculated to obtain the gas atmosphere ratio. If the gas atmosphere mean is less than or equal to the set gas atmosphere standard, the gas atmosphere ratio is recorded as 1.

[0022] The environmental control unit calculates the ratio of the pyrolysis heat supply to the set pyrolysis heat supply standard to obtain the pyrolysis heat supply ratio;

[0023] The environmental control unit assigns different weights to the pyrolysis heating ratio, the gas atmosphere ratio, the pyrolysis heating fluctuation ratio and the gas atmosphere fluctuation ratio, and performs weighted averaging to obtain the thermal decomposition coupling degree, wherein the sum of the assigned weight values ​​is 1.

[0024] As a preferred embodiment of the present invention, the result detection unit performs quality inspection on the product after pyrolysis is completed, calculates the ratio of the weight of non-solid matter in the product to the total weight of the material entering the pyrolysis environment, and obtains the degree of pyrolysis completion;

[0025] The result detection unit analyzes the product fibers after pyrolysis through a detection device to obtain the product fiber length, and performs arithmetic averaging on the obtained multiple groups of product fiber length data, and calculates the ratio of the obtained product fiber length mean value to the preset fiber length to obtain the fiber integrity.

[0026] As a preferred embodiment of the present invention, the feedback adjustment unit analyzes the pyrolysis completion degree with a set threshold value, generates a pyrolysis normal signal or a pyrolysis abnormal signal according to the analysis result, and compares the pyrolysis coupling degree with a set coupling threshold value, and generates a coupling normal signal or a coupling abnormal signal according to the comparison result;

[0027] The feedback regulating unit generates a pyrolysis correction signal when generating a coupling abnormality signal, and generates a pyrolysis regulating signal when generating a coupling normal signal and a pyrolysis abnormality signal at the same time.

[0028] As a preferred embodiment of the present invention, the preceding adjustment unit compares the fiber integrity with a set integrity threshold, and generates a fiber increase signal or a fiber decrease signal according to the comparison result;

[0029] The pyrolysis control unit increases or decreases the fixed size cut by the fan blade according to the acquired fiber increase signal or fiber decrease signal.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the present invention, the pyrolysis completion degree and fiber length are obtained by detecting the product after pyrolysis, and standardized analysis is performed based on the pyrolysis completion degree and fiber length. When the analysis result does not meet the standard, the pyrolysis environment and blade cutting size are adjusted in a loop feedback manner. Therefore, during the operation of the pyrolysis system, the pyrolysis process is automatically corrected according to the performance of the pyrolysis product, and automatic optimization control of different products and different operating environments is achieved without manual adjustment, thereby improving the intelligence of the pyrolysis work.

[0032] 2. In the present invention, the pyrolysis environment is collected in real time and compared with the preset pyrolysis environment standard. The coupling degree of the pyrolysis process is obtained according to the comparison result. The pyrolysis coupling degree directly reflects the degree of compliance with the environment standard and the degree of environmental fluctuation during the pyrolysis process, thereby evaluating the control effect of the pyrolysis process environment.

[0033] 3. In the present invention, the bulky fan blades are transformed into pyrolysis materials with fixed sizes through precise size cutting, thereby fully improving the efficiency of the pyrolysis process, while controlling the blades not to be too broken to cause the product fiber to be too much and unusable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0035] Figure 1 is a system block diagram of the present invention;

[0036] Figure 2 It is a system flow chart of the present invention. DETAILED DESCRIPTION

[0037] The technical scheme of the present invention will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1:

[0039] See also Figure 1 - Figure 2 As shown, a waste fan blade pyrolysis recovery system includes a pyrolysis control unit, a pre-order adjustment unit, an environment control unit, a result detection unit and a feedback adjustment unit, wherein the pyrolysis control unit cuts the fan blades into fixed sizes to convert the fan blades into pyrolysis materials with fixed sizes;

[0040] The environmental control unit detects the pyrolysis environment of the fan blades to obtain pyrolysis environment parameters, wherein the pyrolysis environment parameters include gas atmosphere quantity and pyrolysis heat supply. The environmental control unit collects the oxygen content in the pyrolysis environment through a gas analyzer to obtain the gas oxygen content, and records the inverse of the gas oxygen content as the gas atmosphere quantity;

[0041] The environment control unit collects the temperature and gas volume of the high-temperature gas blown out in the pyrolysis environment, and records the product of the temperature and gas volume of the high-temperature gas as the pyrolysis heat supply;

[0042] The environmental control unit analyzes the gas atmosphere quantity with the set gas atmosphere standard to obtain the gas atmosphere ratio, and the environmental control unit analyzes the pyrolysis heat supply with the set heat supply to obtain the heat supply ratio;

[0043] When pyrolysis is in progress, the environmental control unit collects the gas atmosphere quantity and the pyrolysis heat supply at a fixed frequency interval, thereby obtaining multiple sets of gas atmosphere quantity and pyrolysis heat supply during the pyrolysis process;

[0044] The environmental control unit counts multiple groups of gas atmosphere quantities and calculates the standard deviation of the gas atmosphere quantities to obtain gas atmosphere quantity fluctuations;

[0045] The environmental control unit counts multiple groups of pyrolysis heat supply and calculates the standard deviation of the pyrolysis heat supply to obtain the pyrolysis heat supply fluctuation;

[0046] The environmental control unit averages the multiple groups of gas atmosphere quantities to obtain the mean value of the gas atmosphere quantities, and calculates the ratio of the gas atmosphere quantity fluctuation to the gas atmosphere quantity mean value, and records it as the gas atmosphere fluctuation ratio. The environmental control unit averages the multiple groups of pyrolysis heat supply quantities to obtain the mean value of the pyrolysis heat supply quantities, and calculates the ratio of the pyrolysis heat supply fluctuation to the pyrolysis heat supply mean value, and records it as the pyrolysis heat supply fluctuation ratio.

[0047] The environmental control unit compares the gas atmosphere mean value with the set gas atmosphere standard. If the gas atmosphere mean value is greater than the set gas atmosphere standard, the ratio of the gas atmosphere mean value to the gas atmosphere standard is calculated to obtain the gas atmosphere ratio. If the gas atmosphere mean value is less than or equal to the set gas atmosphere standard, the gas atmosphere ratio is recorded as 1.

[0048] The environmental control unit calculates the ratio of the pyrolysis heat supply to the set pyrolysis heat supply standard to obtain the pyrolysis heat supply ratio;

[0049] The environmental control unit assigns different weights a, b, c, d to the pyrolysis heating ratio, gas atmosphere ratio, pyrolysis heating fluctuation ratio and gas atmosphere fluctuation ratio, and performs weighted average to obtain the thermal decomposition coupling degree, where the sum of a, b, c, d is 1.

[0050] Embodiment 2:

[0051] See also Figure 1 - Figure 2 As shown, the result detection unit performs quality inspection on the product after pyrolysis is completed, calculates the ratio of the weight of non-solid matter in the product to the total weight of the material entering the pyrolysis environment, and obtains the degree of pyrolysis completion;

[0052] The result detection unit analyzes the product fibers after pyrolysis through the detection equipment to obtain the product fiber length, and performs arithmetic average on the obtained multiple groups of product fiber length data, and calculates the ratio of the obtained product fiber length mean value to the preset fiber length to obtain the fiber integrity;

[0053] The feedback regulation unit analyzes the pyrolysis completion degree with the set threshold value. If the pyrolysis completion degree is greater than the set threshold value, a pyrolysis normal signal is generated. If the pyrolysis completion degree is less than or equal to the set threshold value, a pyrolysis abnormal signal is generated.

[0054] The feedback regulation unit compares the thermal decoupling degree with the set coupling threshold value, and generates a coupling normal signal if the thermal decoupling degree is greater than the set coupling threshold value, and generates a coupling abnormal signal if the thermal decoupling degree is less than or equal to the set coupling threshold value;

[0055] The feedback regulating unit generates a pyrolysis correction signal when generating a coupling abnormality signal, generates a pyrolysis regulation signal when generating a coupling normal signal and a pyrolysis abnormality signal at the same time, and does not respond when generating a coupling normal signal and a pyrolysis normal signal at the same time;

[0056] The pre-order adjustment unit compares the fiber integrity with the set integrity threshold, and generates a fiber increase signal if the fiber integrity is less than the set integrity threshold; generates a fiber decrease signal if the fiber integrity is greater than the set integrity threshold, and the difference between the fiber integrity and the set integrity threshold is greater than the set upper limit; and generates a fiber decrease signal if the fiber integrity is greater than the set integrity threshold, and the difference between the fiber integrity and the set integrity threshold is not greater than the set upper limit;

[0057] The pyrolysis control unit increases or decreases the fixed size cut by the fan blades according to the obtained fiber increase signal or fiber decrease signal, thereby dynamically improving the fiber length of the pyrolysis product and improving the product utilization effect.

[0058] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A waste fan blade pyrolysis recovery system, characterized in that: It includes a pyrolysis control unit, which cuts the fan blades into fixed sizes to convert the fan blades into pyrolysis materials with fixed sizes; An environmental control unit, wherein the environmental control unit detects the pyrolysis environment of the fan blades, and compares the detected pyrolysis environment of the fan blades with a set pyrolysis environment to obtain a pyrolysis coupling degree; A result detection unit, which detects the fan blades after pyrolysis, and obtains the pyrolysis completion degree and fiber integrity through the detection equipment; A feedback regulation unit, wherein the feedback regulation unit obtains the pyrolysis completion degree through the result detection unit, judges the pyrolysis result through the pyrolysis completion degree, obtains the pyrolysis coupling degree through the environment control unit, performs a comprehensive analysis on the pyrolysis coupling degree and the pyrolysis completion degree, and generates a pyrolysis regulation signal or a pyrolysis correction signal; A pre-order adjustment unit, wherein the pre-order adjustment unit obtains the fiber integrity through the result detection unit, generates a size adjustment signal according to the fiber integrity, and sends the size adjustment signal to the pyrolysis control unit.

2. A waste fan blade pyrolysis recovery system according to claim 1, characterized in that: The environmental control unit detects the pyrolysis environment to obtain pyrolysis environment parameters, wherein the pyrolysis environment parameters include gas atmosphere quantity and pyrolysis heating amount. The environmental control unit analyzes the gas atmosphere quantity with the set gas atmosphere standard to obtain the gas atmosphere ratio. The environmental control unit analyzes the pyrolysis heating amount with the set heating amount to obtain the heating ratio.

3. A waste fan blade pyrolysis recovery system according to claim 2, characterized in that: The method for the environmental control unit to obtain the gas atmosphere quantity is: The environmental control unit collects the oxygen content in the pyrolysis environment through a gas analyzer to obtain the gas oxygen content, and records the reciprocal of the gas oxygen content as the gas atmosphere quantity.

4. A waste fan blade pyrolysis recovery system according to claim 2, characterized in that: The method for the environmental control unit to obtain the pyrolysis heat supply is: The environment control unit collects the temperature and gas volume of the high-temperature gas blown out in the pyrolysis environment, and records the product of the temperature and gas volume of the high-temperature gas as the pyrolysis heat supply.

5. The waste fan blade pyrolysis recovery system according to claim 2 is characterized in that: The environmental control unit collects the gas atmosphere quantity and the pyrolysis heat supply at fixed frequency intervals during the pyrolysis process, thereby obtaining multiple sets of gas atmosphere quantity and pyrolysis heat supply during the pyrolysis process; The environmental control unit collects statistics on multiple groups of gas atmosphere quantities and calculates standard deviations of the gas atmosphere quantities to obtain gas atmosphere quantity fluctuations; The environmental control unit counts multiple groups of pyrolysis heat supply and calculates the standard deviation of the pyrolysis heat supply to obtain the pyrolysis heat supply fluctuation; The environmental control unit performs arithmetic averaging on multiple groups of gas atmosphere quantities to obtain a mean value of the gas atmosphere quantity, and calculates the ratio of the gas atmosphere quantity fluctuation to the gas atmosphere quantity mean, and records it as the gas atmosphere fluctuation ratio. Similarly, the environmental control unit also obtains the mean value of the pyrolysis heat supply, and calculates the ratio between the pyrolysis heat supply fluctuation and the pyrolysis heat supply mean, and records it as the pyrolysis heat supply fluctuation ratio.

6. A waste fan blade pyrolysis recovery system according to claim 2, characterized in that: The environmental control unit compares the gas atmosphere mean with the set gas atmosphere standard. If the gas atmosphere mean is greater than the set gas atmosphere standard, the ratio of the gas atmosphere mean to the gas atmosphere standard is calculated to obtain the gas atmosphere ratio. If the gas atmosphere mean is less than or equal to the set gas atmosphere standard, the gas atmosphere ratio is recorded as 1. The environmental control unit calculates the ratio of the pyrolysis heat supply to the set pyrolysis heat supply standard to obtain the pyrolysis heat supply ratio; The environmental control unit assigns different weights to the pyrolysis heating ratio, the gas atmosphere ratio, the pyrolysis heating fluctuation ratio and the gas atmosphere fluctuation ratio, and performs weighted averaging to obtain the thermal decomposition coupling degree, wherein the sum of the assigned weight values ​​is 1.

7. The waste fan blade pyrolysis recovery system according to claim 1 is characterized in that: The result detection unit performs quality inspection on the product after pyrolysis is completed, calculates the ratio of the weight of non-solid matter in the product to the total weight of the material entering the pyrolysis environment, and obtains the degree of pyrolysis completion; The result detection unit analyzes the product fibers after pyrolysis through a detection device to obtain the product fiber length, and performs arithmetic averaging on the obtained multiple groups of product fiber length data, and calculates the ratio of the obtained product fiber length mean value to the preset fiber length to obtain the fiber integrity.

8. The waste fan blade pyrolysis recovery system according to claim 1, characterized in that: The feedback adjustment unit analyzes the pyrolysis completion degree with a set threshold value, generates a pyrolysis normal signal or a pyrolysis abnormal signal according to the analysis result, and compares the pyrolysis coupling degree with a set coupling threshold value, and generates a coupling normal signal or a coupling abnormal signal according to the comparison result; The feedback regulating unit generates a pyrolysis correction signal when generating a coupling abnormality signal, and generates a pyrolysis regulating signal when generating a coupling normal signal and a pyrolysis abnormality signal at the same time.

9. The waste fan blade pyrolysis recovery system according to claim 1, characterized in that: The pre-order adjustment unit compares the fiber integrity with a set integrity threshold, and generates a fiber increase signal or a fiber decrease signal according to the comparison result; The pyrolysis control unit increases or decreases the fixed size cut by the fan blade according to the acquired fiber increase signal or fiber decrease signal.

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