CN114956503B - Sludge pyrolysis treatment system capable of realizing self-sustaining of heat - Google Patents

Sludge pyrolysis treatment system capable of realizing self-sustaining of heat Download PDF

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CN114956503B
CN114956503B CN202210648872.3A CN202210648872A CN114956503B CN 114956503 B CN114956503 B CN 114956503B CN 202210648872 A CN202210648872 A CN 202210648872A CN 114956503 B CN114956503 B CN 114956503B
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孟辉
景元琢
李祥宇
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Shandong Jinfu Environment Engineering Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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    • C02F11/00—Treatment of sludge; Devices therefor
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Abstract

The invention belongs to the field of sludge treatment, relates to a sludge pyrolysis technology, and is used for solving the problem that the existing sludge pyrolysis treatment system cannot match the optimal pyrolysis temperature for the sludge according to the property of the sludge, in particular to a sludge pyrolysis treatment system capable of self-sustaining heat, which comprises a processor, wherein the processor is in communication connection with a temperature management module, an attribute analysis module, a storage module and a sludge rating module; the attribute analysis module is used for carrying out attribute analysis on the sludge before pyrolysis treatment and obtaining an attribute coefficient, the attribute analysis module sends the attribute coefficient of the sludge to the temperature management module, the temperature management module sends the attribute coefficient to the storage module after receiving the attribute coefficient, and whether an attribute range corresponding to the attribute coefficient exists or not is searched in the storage module; according to the invention, the attribute coefficient is obtained by calculating the parameters of the sludge, and the properties of the sludge are quantized by the attribute coefficient, so that the yield of each sludge in the pyrolysis treatment is ensured.

Description

Sludge pyrolysis treatment system capable of realizing self-sustaining of heat
Technical Field
The invention belongs to the field of sludge treatment, relates to a sludge pyrolysis technology, and particularly relates to a sludge pyrolysis treatment system capable of self-sustaining heat.
Background
Thermal sludge pyrolysis technology utilizes thermochemical action to convert organic matter (such as sewer sludge) into bio-oil, char, synthesis gas and reaction water in an anaerobic environment. The conversion process is carried out in a dual reaction system. In the first reactor, more than 60 percent of dewatered sludge (the solid content is 90 to 95 percent) volatilizes at the temperature of 450 ℃; in the second reactor, the resulting gas phase components and char are combined and subjected to various reactions to produce a bio-oil product.
Under the same condition, the yield distribution of products of sludge with different properties after pyrolysis is different, the pyrolysis temperature is different, the yield and the product after pyrolysis are different, and even if the sludge is the same, the products are different due to different pyrolysis temperatures; therefore, how to perform optimal pyrolysis temperature matching for sludge with different properties is a technical problem which needs to be solved urgently in the field of sludge pyrolysis.
In view of the above technical problem, the present application proposes a solution.
Disclosure of Invention
The invention aims to provide a sludge pyrolysis treatment system capable of self-sustaining heat, which is used for solving the problem that the existing sludge pyrolysis treatment system cannot be matched with the optimal pyrolysis temperature according to the property of sludge;
the technical problems to be solved by the invention are as follows: how to provide a sludge pyrolysis disposal system which can match the optimal pyrolysis temperature for the sludge according to the property of the sludge.
The purpose of the invention can be realized by the following technical scheme:
a thermal self-sustaining sludge pyrolysis treatment system comprises a processor, wherein the processor is in communication connection with a temperature management module, an attribute analysis module, a storage module and a sludge rating module;
the attribute analysis module is used for carrying out attribute analysis on the sludge before pyrolysis treatment and obtaining an attribute coefficient, the attribute analysis module sends the attribute coefficient of the sludge to the temperature management module, the temperature management module sends the attribute coefficient to the storage module after receiving the attribute coefficient, and whether an attribute range corresponding to the attribute coefficient exists or not is searched in the storage module:
if the attribute range exists, the execution temperature range corresponding to the attribute range is sent to a temperature management module, and the temperature management module sends the execution temperature range to a processor after receiving the execution temperature range;
if the test signal does not exist, generating a test signal and sending the test signal to a temperature management module, carrying out pyrolysis analysis on the sludge after the test signal is received by the temperature management module to obtain an execution temperature range and an attribute range of the sludge, sending the execution temperature range and the attribute range to a storage module for storage, and sending the execution temperature range to a processor;
and after the sludge is pyrolyzed within the execution temperature range, grading the pyrolyzed sludge by using a sludge grading module.
As a preferred embodiment of the present invention, the process of analyzing the attribute of the sludge by the attribute analysis module includes: acquiring water content data HS, nitrogen-containing data HN and zinc-containing data HX of the sludge; and obtaining an attribute coefficient SX of the sludge by carrying out numerical calculation on the water content data HS, the nitrogen-containing data HN and the zinc-containing data HX of the sludge.
As a preferred embodiment of the present invention, the acquisition process of the water content data HS of the sludge includes: preparing a certain amount of filter paper, putting the filter paper into an oven, drying for half an hour at 103-105 ℃, taking out the filter paper, putting the filter paper in a balance tray, cooling to room temperature, weighing the filter paper, repeatedly drying, cooling and weighing until the weight difference between two times of weighing is less than or equal to 0.2mg, recording the weight W1, putting the constant weight filter paper in the balance tray, sampling, weighing about 20 g of upper and lower sludge, recording the weight W2 after reaching the constant weight, then weighing the sludge W = W2-W1, drying the sludge in the oven for about 2 hours at 105 ℃, cooling the filter paper in the dryer for 30 minutes to room temperature, recording the data, weighing the data after drying for 2 hours until the weighed weight is unchanged, namely reaching the constant weight W3 (or the weight difference between two times of weighing is less than or equal to 0.4 mg), and obtaining the water-containing data HS through a formula HS = (W2-W3)/(W2-W1) =;
the acquisition process of the nitrogenous data HN comprises the following steps: acquiring a total nitrogen content range of the sludge through a storage module, marking an average value of a maximum value and a minimum value of the total nitrogen content range as a standard total nitrogen content, acquiring the total nitrogen content in the sludge, marking the total nitrogen content as a calibrated total nitrogen content, and marking an absolute value of a difference value between the calibrated total nitrogen content and the standard total nitrogen content as nitrogen data HN;
the acquisition process of the zinc-containing data HX comprises the following steps: the method comprises the steps of obtaining a sludge total zinc content range through a storage module, marking an average value of a maximum value and a minimum value of the total zinc content range as a standard total zinc content, obtaining the total zinc content in the sludge and marking as a calibrated total zinc content, and marking an absolute value of a difference value between the calibrated total zinc content and the standard total zinc content as zinc-containing data HX.
As a preferred embodiment of the present invention, the specific process of analyzing the execution temperature range of the sludge by the temperature management module includes: dividing the temperature range of sludge pyrolysis into temperature intervals i, i =1,2, \8230n, dividing the sludge subjected to temperature range analysis into a plurality of analysis objects, performing pyrolysis treatment on the analysis objects in the temperature interval i, marking the product quality of the analysis objects in the temperature interval i as ZLI after the pyrolysis treatment is completed, marking the pyrolysis completion duration of the analysis objects in the temperature interval i as SCi, and performing numerical calculation on the product quality ZLI and the pyrolysis duration SCi to obtain a yield coefficient CLi corresponding to the temperature interval i; the storage module matches the execution temperature range with the attribute range after receiving the execution temperature range; in the sludge pyrolysis process, the temperature management module also detects and monitors the environmental temperature value in the pyrolysis process.
As a preferred embodiment of the present invention, the process of acquiring the attribute range includes: marking the temperature interval with the maximum value of the yield coefficient CLi as an execution temperature range, sending the execution temperature range to a processor and a storage module by a temperature management module, obtaining an attribute maximum value SXmax and an attribute minimum value SXmin through formulas SXmin = t1 xSX and SXmax = t2 xSX, wherein t1 and t2 are both proportionality coefficients, t1 is more than or equal to 0.85 and less than or equal to 0.95, t2 is more than or equal to 1.05 and less than or equal to 1.15, and forming the attribute range by the attribute maximum value and the attribute minimum value.
As a preferred embodiment of the present invention, the specific process of monitoring the ambient temperature value in the pyrolysis process includes: marking the maximum value and the minimum value of the execution temperature range as ZD and ZX respectively, marking the temperature value of the pyrolysis environment as WD, and comparing the temperature value WD with ZD and ZX: if WD is less than ZX, judging that the temperature of the pyrolysis environment is too low, and sending a temperature rise signal to a processor by the temperature management module; and if WD is larger than ZD, judging that the temperature of the pyrolysis environment is too high, and sending a cooling signal to the processor by the temperature management module.
As a preferred embodiment of the invention, the specific process of the sludge rating module for rating the sludge subjected to pyrolysis comprises the following steps: the method comprises the steps of establishing a yield set { CL1, CL2, \ 8230;, CLn } for yield coefficients CLi in a temperature range analysis process, carrying out variance calculation on the yield set to obtain a yield performance value CB of sludge, marking the yield coefficients in a sludge pyrolysis treatment process as CX, carrying out numerical calculation on the yield performance value and the yield coefficients to obtain a grade coefficient DJ of the sludge, obtaining grade thresholds DJmin and DJmax of the sludge through a storage module, comparing the grade coefficient DJ of the sludge with the grade thresholds DJmin and DJmax, and carrying out grade evaluation on the sludge through a comparison result.
As a preferred embodiment of the present invention, the comparison process of the level coefficient DJ with the level thresholds DJmin, DJmax includes:
if DJ is less than or equal to DJmin, judging that the sludge is unqualified and the sludge grade is three;
if DJmin is more than DJ and less than DJmax, judging that the sludge is qualified and the sludge grade is two;
if DJ is more than or equal to DJmax, judging that the sludge is qualified and the sludge grade is a first grade;
and the sludge rating module sends the sludge quality grade to the storage module for storage.
As a preferred embodiment of the invention, the working method of the heat self-sustaining sludge pyrolysis treatment system comprises the following steps:
the method comprises the following steps: before pyrolysis treatment, an attribute analysis module is adopted to carry out attribute analysis on the sludge to obtain an attribute coefficient, and a storage module is used for searching whether an attribute range corresponding to the attribute coefficient exists or not;
step two: when the corresponding attribute range exists in the storage module, the attribute range is sent to the processor, and when the corresponding attribute range does not exist in the storage module, the temperature management module is adopted to analyze the sludge to obtain an execution temperature range;
step three: and after the sludge is pyrolyzed within the execution temperature range, judging whether the pyrolyzed sludge is qualified or not and grading the sludge by using a sludge grading module.
The invention has the following beneficial effects:
1. the attribute analysis module can be used for performing attribute analysis on sludge to be pyrolyzed, the attribute coefficients are obtained through calculation of parameters of the sludge, the properties of the sludge are quantized through the attribute coefficients, so that the sludge with similar attribute coefficients is classified and divided, then the attribute ranges of the same category are matched with the execution temperature range, and the yield of the sludge is highest when pyrolysis is performed in the execution temperature range, so that the yield of each sludge can be ensured through the attribute analysis module when pyrolysis is performed;
2. the sludge without a sample in the storage module can be subjected to test analysis through the temperature management module, the sludge is subjected to execution temperature range matching through the test analysis result, meanwhile, the maximum value and the minimum value of the attribute range are obtained through the calculation of the attribute coefficient of the sludge, the attribute range is matched with the execution temperature range, and once the attribute coefficient of the subsequent sludge is positioned between the attribute ranges, the corresponding execution temperature range can be directly called for application;
3. the integral quality grade of the sludge can be detected and analyzed through the sludge rating module after the pyrolysis treatment of the sludge is finished, the grade coefficient is obtained by combining the discrete degree calculation of the yield coefficient of the sludge in different temperature intervals during the test, and the integral quality of the sludge is fed back through the numerical value of the grade coefficient, so that the quality of the sludge is supervised.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of a system according to a first embodiment of the present invention;
FIG. 2 is a flowchart of a method according to a second embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Low-grade pyrolysis products, such as char, syngas, and reaction water, are typically combusted in a hot gas generator (typically a jet engine combustor) to provide the heat energy required for sludge dewatering. The ESI scale produces bio-oil similar to diesel fuel that can be combusted in turbine and modified diesel engines to produce electrical energy. It is particularly noted that sludge dewatering is also part of this process.
Example one
As shown in fig. 1, a self-sustained thermal sludge pyrolysis treatment system includes a processor, and a temperature management module, an attribute analysis module, a storage module, and a sludge rating module are communicatively connected to the processor.
The attribute analysis module is used for carrying out attribute analysis on the sludge before pyrolysis treatment, and the process of carrying out attribute analysis on the sludge comprises the following steps: acquiring water content data HS, nitrogen-containing data HN and zinc-containing data HX of the sludge; the acquisition process of the water content data of the sludge comprises the following steps: preparing a certain amount of filter paper, putting the filter paper into an oven, drying for half an hour at 103-105 ℃, taking out the filter paper, putting the filter paper in a balance tray, cooling to room temperature, weighing the filter paper, repeatedly drying, cooling and weighing until the weight difference between two times of weighing is less than or equal to 0.2mg, recording the weight W1, putting the constant weight filter paper in the balance tray, sampling, weighing about 20 g of upper and lower sludge, recording the weight W2 after reaching the constant weight, then weighing the sludge W = W2-W1, drying the sludge in the oven for about 2 hours at 105 ℃, cooling the filter paper in the dryer for 30 minutes to room temperature, recording the data, weighing the data after drying for 2 hours until the weighed weight is unchanged, namely reaching the constant weight W3 (or the weight difference between two times of weighing is less than or equal to 0.4 mg), and obtaining the water-containing data HS through a formula HS = (W2-W3)/(W2-W1) =; the acquisition process of the nitrogenous data HN comprises the following steps: acquiring a total nitrogen content range of the sludge through a storage module, marking an average value of a maximum value and a minimum value of the total nitrogen content range as a standard total nitrogen content, acquiring the total nitrogen content in the sludge, marking the total nitrogen content as a calibrated total nitrogen content, and marking an absolute value of a difference value between the calibrated total nitrogen content and the standard total nitrogen content as nitrogen data HN; the acquisition process of the zinc-containing data HX comprises the following steps: acquiring a sludge total zinc content range through a storage module, marking an average value of a maximum value and a minimum value of the total zinc content range as a standard total zinc content, acquiring the total zinc content in the sludge and marking as a calibrated total zinc content, and marking an absolute value of a difference value between the calibrated total zinc content and the standard total zinc content as zinc-containing data HX; the method comprises the steps of obtaining an attribute coefficient SX of sludge through a formula SX = alpha 1 × HS + alpha 2 × HN + alpha 3 × HX, wherein alpha 1, alpha 2 and alpha 3 are proportionality coefficients, alpha 3 > alpha 2 > alpha 1 > 1, the attribute coefficient is a numerical value reflecting the pyrolysis treatment difficulty of the sludge, the higher the numerical value of the attribute coefficient is, the higher the treatment difficulty of the sludge is, the attribute analysis module can analyze the attribute of the sludge needing the pyrolysis treatment, the attribute coefficient is obtained through calculation of parameters of the sludge, the property of the sludge is quantized through the attribute coefficient, the sludge with the similar attribute coefficient is classified and divided, the execution temperature range is matched with the attribute range of the same category, the yield of the sludge is the highest when the sludge is pyrolyzed in the execution temperature range, and the yield of each sludge when the pyrolysis treatment is carried out can be ensured through the attribute analysis module.
The attribute analysis module sends the attribute coefficient of the sludge to the temperature management module, the temperature management module sends the attribute coefficient to the storage module after receiving the attribute coefficient, whether an attribute range corresponding to the attribute coefficient exists or not is searched in the storage module, if yes, an execution temperature range corresponding to the attribute range is sent to the temperature management module, and the temperature management module sends the execution temperature range to the processor after receiving the execution temperature range; if the test signal does not exist, a test signal is generated and sent to the temperature management module, and the temperature management module analyzes the execution temperature range of the sludge after receiving the test signal.
The specific process of analyzing the execution temperature range of the sludge by the temperature management module comprises the following steps: dividing the temperature range of sludge pyrolysis into a plurality of analysis objects, performing pyrolysis treatment on the analysis objects in the temperature range i, marking the product quality of the analysis objects in the temperature range i as ZLI after the pyrolysis treatment is completed, marking the pyrolysis completion duration of the analysis objects in the temperature range i as SCi, obtaining a yield coefficient CLi corresponding to the temperature range i through a formula CLi = (beta 1 xZLI)/(beta 2 xSCi), marking the temperature range with the maximum value of the yield coefficient CLi as an execution temperature range, sending the execution temperature range to a processor and a storage module by a temperature management module, obtaining an attribute maximum value SXmin and an attribute minimum value SXmin through formulas SXmin = t1 xSX and Sxmax = t2 xSx, wherein t1 and t2 are proportional coefficients, t1 is not less than 1.95, t 1.05 is not less than 1.15, and the attribute maximum value and the attribute minimum value form the attribute range; the storage module matches the execution temperature range with the attribute range after receiving the execution temperature range; in the sludge pyrolysis process, the temperature management module also detects and monitors an environment temperature value in the pyrolysis process, respectively marks the maximum value and the minimum value of the execution temperature range as ZD and ZX, marks the temperature value of the pyrolysis environment as WD, and compares the temperature value WD with ZD and ZX: if WD is less than ZX, the pyrolysis environment temperature is judged to be too low, and the temperature management module sends a temperature rise signal to the processor; and if WD is larger than ZD, judging that the temperature of the pyrolysis environment is too high, and sending a cooling signal to the processor by the temperature management module.
The temperature management module can perform test analysis on sludge without specimens in the storage module, perform execution temperature range matching on the sludge according to the test analysis result, calculate the maximum value and the minimum value of the attribute range through the attribute coefficient of the sludge, match the attribute range with the execution temperature range, and directly call the corresponding execution temperature range for application once the attribute coefficient of the subsequent sludge is positioned between the attribute ranges.
After the sludge is pyrolyzed within the execution temperature range, grading the pyrolyzed sludge by using a sludge grading module: establishing a yield set { CL1, CL2, \8230;, CLn } for the yield coefficient CLi in the temperature range analysis process, carrying out variance calculation on the yield set to obtain a yield performance value CB of the sludge, marking the yield coefficient in the sludge pyrolysis treatment process as CX, and obtaining a grade coefficient DJ of the sludge by a formula DJ = (gamma 1 xCX)/(gamma 2 xCB), wherein gamma 1 and gamma 2 are proportionality coefficients, and gamma 2 is more than gamma 1; and (3) obtaining the grade threshold values DJmin and DJmax of the sludge through a storage module, and comparing the grade coefficient DJ of the sludge with the grade threshold values DJmin and DJmax: if DJ is less than or equal to DJmin, judging that the sludge is unqualified and the sludge grade is three; if DJmin is more than DJ and less than DJmax, judging that the sludge is qualified and the sludge grade is two grade; if DJ is larger than or equal to DJmax, the condition that the sludge is qualified and the sludge grade is one grade is judged, the sludge grading module sends the sludge quality grade to the storage module for storage, the overall quality grade of the sludge is detected and analyzed after the pyrolysis treatment of the sludge is finished, the grade coefficient is obtained by combining the calculation of the discrete degree of the yield coefficient of the sludge in different temperature intervals during the test, and the overall quality of the sludge is fed back through the numerical value of the grade coefficient, so that the quality of the sludge is supervised.
Example two
As shown in fig. 2, a method for thermally and self-sustaining sludge pyrolysis treatment comprises the following steps:
the method comprises the following steps: before pyrolysis treatment, an attribute analysis module is adopted to carry out attribute analysis on sludge to obtain an attribute coefficient, the attribute analysis module sends the attribute coefficient of the sludge to a temperature management module, the temperature management module receives the attribute coefficient and then sends the attribute coefficient to a storage module, whether an attribute range corresponding to the attribute coefficient exists or not is searched in the storage module, the attribute analysis is carried out on the sludge needing pyrolysis treatment, the attribute coefficient is obtained through self-parameter calculation of the sludge, the property of the sludge is quantified through the attribute coefficient, the sludge with similar attribute coefficients is classified and divided, then the attribute ranges of the same category are matched with an execution temperature range, and the yield of the sludge is highest when pyrolysis is carried out in the execution temperature range;
step two: when the storage module has a corresponding attribute range, the attribute range is sent to a processor, when the storage module does not have the corresponding attribute range, the temperature management module is adopted to analyze the sludge to obtain an execution temperature range, the execution temperature range matching is carried out on the sludge according to the result of experimental analysis, meanwhile, the maximum value and the minimum value of the attribute range are obtained through the calculation of the attribute coefficient of the sludge, the attribute range is matched with the execution temperature range, once the attribute coefficient of the subsequent sludge is positioned between the attribute ranges, the execution temperature range corresponding to the attribute range can be directly called for application, and the execution temperature range is matched with the attribute coefficient and is sent to the processor;
step three: after pyrolysis treatment of sludge is completed within an execution temperature range, judging whether the sludge subjected to pyrolysis is qualified or not by adopting a sludge rating module and carrying out grade judgment on the sludge, calculating to obtain a grade coefficient by combining the discrete degrees of yield coefficients of the sludge in different temperature intervals during testing, feeding back the overall quality of the sludge through the numerical value of the grade coefficient, monitoring the quality of the sludge, and sending the attribute coefficient, the execution temperature range, the grade coefficient and the quality grade of the sludge to a storage module for storage.
A sludge pyrolysis treatment system capable of self-sustaining heat is characterized in that during work, before pyrolysis treatment, an attribute analysis module is adopted to carry out attribute analysis on sludge to obtain attribute coefficients, and a storage module is used for searching whether attribute ranges corresponding to the attribute coefficients exist or not; when the corresponding attribute range exists in the storage module, the attribute range is sent to the processor, and when the corresponding attribute range does not exist in the storage module, the temperature management module is adopted to analyze the sludge to obtain an execution temperature range; and after the sludge is pyrolyzed within the execution temperature range, judging whether the pyrolyzed sludge is qualified or not and grading the sludge by using a sludge grading module.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
The formulas are obtained by acquiring a large amount of data and performing software simulation, and the coefficients in the formulas are set by the technicians in the field according to actual conditions; such as: the formula SX = α 1 × HS + α 2 × HN + α 3 × HX; collecting multiple groups of sample data and setting corresponding attribute coefficient for each group of sample data by the technicians in the field; substituting the set attribute coefficient and the acquired sample data into formulas, forming a ternary linear equation set by any three formulas, screening the calculated coefficients and taking the mean value to obtain values of alpha 1, alpha 2 and alpha 3 which are respectively 2.24, 2.97 and 5.48;
the size of the coefficient is a specific numerical value obtained by quantizing each parameter, so that the subsequent comparison is convenient, and the size of the coefficient depends on the number of sample data and the corresponding attribute coefficient is preliminarily set for each group of sample data by a person skilled in the art; it is sufficient that the proportional relationship between the parameter and the quantized value is not affected, for example, the attribute coefficient is proportional to the value of the nitrogen-containing data.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (9)

1. A sludge pyrolysis treatment system capable of realizing self-sustaining of heat comprises a processor, and is characterized in that the processor is in communication connection with a temperature management module, an attribute analysis module, a storage module and a sludge rating module;
the attribute analysis module is used for carrying out attribute analysis on the sludge before pyrolysis treatment and obtaining an attribute coefficient, the attribute analysis module sends the attribute coefficient of the sludge to the temperature management module, the temperature management module sends the attribute coefficient to the storage module after receiving the attribute coefficient, and whether an attribute range corresponding to the attribute coefficient exists or not is searched in the storage module:
if the attribute range exists, the execution temperature range corresponding to the attribute range is sent to the temperature management module, and the temperature management module receives the execution temperature range and then sends the execution temperature range to the processor;
if the test signal does not exist, generating a test signal and sending the test signal to a temperature management module, carrying out pyrolysis analysis on the sludge after the test signal is received by the temperature management module to obtain an execution temperature range and an attribute range of the sludge, sending the execution temperature range and the attribute range to a storage module for storage, and sending the execution temperature range to a processor;
and after the sludge is pyrolyzed within the execution temperature range, grading the pyrolyzed sludge by using a sludge grading module.
2. The system of claim 1, wherein the attribute analysis module performs attribute analysis on the sludge by: acquiring water content data HS, nitrogen-containing data HN and zinc-containing data HX of the sludge; and obtaining an attribute coefficient SX of the sludge by carrying out numerical calculation on the water content data HS, the nitrogen-containing data HN and the zinc-containing data HX of the sludge.
3. The system for pyrolysis treatment of sludge capable of self-sustaining by heat according to claim 2, characterized in that the acquisition process of the water content data HS of the sludge comprises: preparing filter paper, putting a certain amount of filter paper into an oven, drying for half an hour at 103-105 ℃, taking out, putting the filter paper in a dryer, cooling to room temperature, weighing the filter paper, repeatedly drying, cooling and weighing until the weight difference between two times of weighing is less than or equal to 0.2mg, recording the weight W1, putting the constant weight filter paper in a balance tray, sampling, weighing 20 g of sludge, recording the weight W2 after reaching the constant weight, recording the weight W = W2-W1, drying for 2 hours at 105 ℃ in the oven, cooling to room temperature for 30 minutes in the dryer, recording the data, drying for 2 hours, weighing again until the weighed weight is unchanged, and obtaining the water-containing data HS according to the formula HS = (W2-W3)/(W2-W1) × 100%;
the acquisition process of the nitrogenous data HN comprises the following steps: acquiring a total nitrogen content range of the sludge through a storage module, marking an average value of a maximum value and a minimum value of the total nitrogen content range as a standard total nitrogen content, acquiring the total nitrogen content in the sludge, marking the total nitrogen content as a calibrated total nitrogen content, and marking an absolute value of a difference value between the calibrated total nitrogen content and the standard total nitrogen content as nitrogen data HN;
the acquisition process of the zinc-containing data HX comprises the following steps: the method comprises the steps of obtaining a sludge total zinc content range through a storage module, marking the average value of the maximum value and the minimum value of the total zinc content range as standard total zinc content, obtaining the total zinc content in the sludge, marking the total zinc content as calibrated total zinc content, and marking the absolute value of the difference value between the calibrated total zinc content and the standard total zinc content as zinc-containing data HX.
4. The system for pyrolysis treatment of sludge with self-sustaining heat capacity according to claim 2, wherein the specific process of analyzing the execution temperature range of the sludge by the temperature management module comprises: dividing the temperature range of sludge pyrolysis into temperature intervals i, i =1,2, \ 8230, n, dividing the sludge subjected to temperature range analysis into a plurality of analysis objects, performing pyrolysis treatment on the analysis objects in the temperature interval i, marking the product quality of the analysis objects in the temperature interval i as ZLI after the pyrolysis treatment is completed, marking the time length of the analysis objects subjected to pyrolysis in the temperature interval i as SCi, and obtaining a yield coefficient CLi corresponding to the temperature interval i by performing numerical calculation on the product quality ZLI and the pyrolysis time length SCi; the storage module matches the execution temperature range with the attribute range after receiving the execution temperature range; in the sludge pyrolysis process, the temperature management module also detects and monitors the environmental temperature value in the pyrolysis process.
5. The system of claim 4, wherein the property range obtaining process comprises: marking the temperature interval with the maximum value of the yield coefficient CLi as an execution temperature range, sending the execution temperature range to a processor and a storage module by a temperature management module, obtaining an attribute maximum value SXmax and an attribute minimum value SXmin through formulas SXmin = t1 xSX and SXmax = t2 xSX, wherein t1 and t2 are both proportionality coefficients, t1 is more than or equal to 0.85 and less than or equal to 0.95, t2 is more than or equal to 1.05 and less than or equal to 1.15, and forming the attribute range by the attribute maximum value and the attribute minimum value.
6. The system for pyrolysis treatment of sludge with self-sustaining heat capacity as claimed in claim 4, wherein the specific process of monitoring the ambient temperature value in the pyrolysis process comprises: marking the maximum value and the minimum value of the execution temperature range as ZD and ZX respectively, marking the temperature value of the pyrolysis environment as WD, and comparing the temperature value WD with ZD and ZX: if WD is less than ZX, judging that the temperature of the pyrolysis environment is too low, and sending a temperature rise signal to a processor by the temperature management module; and if WD is larger than ZD, judging that the temperature of the pyrolysis environment is too high, and sending a cooling signal to the processor by the temperature management module.
7. The system for thermally self-sustaining sludge pyrolysis treatment according to claim 4, wherein the specific process of the sludge rating module for rating the sludge subjected to pyrolysis comprises: the method comprises the steps of establishing a yield set { CL1, CL2, \8230;, CLn } for yield coefficients CLi in a temperature range analysis process, calculating variance of the yield set to obtain a yield performance value CB of sludge, marking the yield coefficient in a sludge pyrolysis treatment process as CX, carrying out numerical calculation on the yield performance value and the yield coefficient to obtain a grade coefficient DJ of the sludge, obtaining grade threshold values DJmin and DJmax of the sludge through a storage module, comparing the grade coefficient DJ of the sludge with the grade threshold values DJmin and DJmax, and grading the sludge through a comparison result.
8. The thermally self-sustaining sludge pyrolysis treatment system according to claim 7, wherein the comparison of the grade coefficient DJ with the grade thresholds DJmin, DJmax comprises:
if DJ is less than or equal to DJmin, judging that the sludge is unqualified and the sludge grade is three;
if DJmin is more than DJ and less than DJmax, judging that the sludge is qualified and the sludge grade is two;
if DJ is more than or equal to DJmax, judging that the sludge is qualified and the sludge grade is a first grade;
and the sludge rating module sends the sludge quality grade to the storage module for storage.
9. The thermal self-sustaining sludge pyrolysis treatment system according to any one of claims 1 to 8, wherein the working method of the thermal self-sustaining sludge pyrolysis treatment system comprises the following steps:
the method comprises the following steps: before pyrolysis treatment, an attribute analysis module is adopted to carry out attribute analysis on the sludge to obtain an attribute coefficient, and a storage module is used for searching whether an attribute range corresponding to the attribute coefficient exists or not;
step two: when the corresponding attribute range exists in the storage module, the attribute range is sent to the processor, and when the corresponding attribute range does not exist in the storage module, the temperature management module is adopted to analyze the sludge to obtain an execution temperature range;
step three: and after the sludge is pyrolyzed within the execution temperature range, judging whether the pyrolyzed sludge is qualified or not and grading the sludge by using a sludge grading module.
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