CN109781785B - Method for measuring heat value of sludge-garbage co-incineration mixed material - Google Patents
Method for measuring heat value of sludge-garbage co-incineration mixed material Download PDFInfo
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Abstract
The invention relates to the field of waste incineration treatment, in particular to a method for measuring a calorific value of a sludge-waste co-incineration mixed material. The determination method comprises the steps of estimating the high calorific value of the garbage, determining the water content of the garbage, estimating the low calorific value of the garbage, estimating the high and low calorific values of the sludge and estimating the calorific value of the sludge-garbage mixture. The method can quickly obtain the more accurate heat value of the mixed material entering the furnace and determine the combustion property of the mixed material, thereby being beneficial to operating personnel to grasp and adjust the operation condition of the waste incineration system in time according to the heat value of the material entering the furnace; the classification of different components in the garbage is fully considered, sufficient multi-point sampling samples are guaranteed to be provided, parameter correction is carried out on links which are easy to generate errors in the implementation steps, and the data accuracy is high; the estimation method has the advantages of low investment cost, no need of sample sending and external measurement, and only about 1.5 hours of test time, is suitable for operators to accurately adjust and track the operation condition of the waste incineration system according to the calorific value of the materials entering the furnace, and is worthy of popularization.
Description
Technical Field
The invention relates to the field of waste incineration treatment, in particular to a method for measuring a calorific value of a sludge-waste co-incineration mixed material.
Background
Currently, each big city in China faces double dilemma of sludge enclosing city and garbage enclosing city. The incineration method is the most effective method for realizing harmless, stable, quantitative reduction and resource treatment of domestic garbage and municipal sludge at present. The sludge is dried by utilizing the waste heat of the waste incineration power plant in the industry, and the dried sludge is directly conveyed to an incineration boiler of the waste incineration power plant to participate in direct combustion, so that the problem of disposal of a large amount of sludge is solved under the condition of ensuring the normal load operation of the waste incineration boiler, and the existing flue gas purification system, waste heat utilization system and ash residue treatment system can be fully utilized by the waste incineration power plant, thereby achieving the purposes of industry cooperation, resource complementation and waste treatment by waste; the investment and the operation cost are reduced. However, the calorific value of the combustion materials fed into the incinerator has an important influence on the stable operation of the garbage incinerator, and for the fuel components mixed by a plurality of materials, the calorific value of each material determines the mixed calorific value and the blending combustion proportion of different materials.
Aiming at household garbage and municipal sludge, various heat value determination methods exist in the industry at present. The method for measuring the heat value of the household garbage comprises the following steps: (1) an industrial analysis prediction experience model; (2) analyzing and predicting an empirical model by physical components; (3) an elemental analysis prediction model; (4) a method for measuring by an oxygen bomb calorimeter in a domestic waste sampling and physical analysis method (CJ/T313-2009). The method for measuring the heat value of the sludge mainly comprises an oxygen bomb calorimeter measuring method. The method mainly refers to a coal heat value determination method, and because the properties of garbage and coal are greatly different, the determination conditions need to be optimized to obtain a more accurate heat value detection result, but certain difficulty exists in the method. The industrial analysis prediction empirical model method and the element analysis prediction model method need to be based on the fact that an external detection unit is entrusted to measure C, H, O, N, S, Cl and other elements, the measuring period is long, and the method is not the method that operating enterprises of waste incineration power plants can independently and quickly estimate. The empirical model method for analyzing and predicting the physical components is also based on the fact that an external detection unit is entrusted to measure 11 basic physical compositions, the measuring period is long, and the method is not capable of being independently and quickly estimated by operating enterprises of waste incineration power plants.
In a word, the above methods for measuring the calorific values of the garbage and the sludge are not convenient for operation enterprises of the garbage incineration power plant to quickly measure the calorific value of the sludge-garbage collaborative incineration charging mixed fuel in real time, and when a more accurate calorific value of the charging mixed fuel is obtained, the detected calorific value of the charging fuel and the real-time operation condition of the garbage incinerator have hysteresis, so that the operation enterprises of the garbage incineration power plant are not convenient for adjusting and controlling the operation condition of the garbage incinerator for co-combusting the dried municipal sludge according to the calorific value of the charging mixed fuel.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the existing problems, the method for measuring the heat value of the sludge-garbage co-incineration mixed material can quickly obtain the data of the garbage low heat value and the sludge low heat value through simple classification estimation, and then obtain the heat value data of the sludge-garbage mixture according to the blending combustion proportion, so that the control parameters (such as the control parameters of primary air distribution quantity and secondary air distribution quantity, garbage feeding speed, grate reciprocating speed, furnace residence time and the like) of a garbage incineration system can be accurately and adaptively regulated according to the heat value of the mixture material entering a furnace, and the blending combustion proportion of the sludge-garbage mixture entering the furnace can be regulated.
The technical scheme adopted by the invention is as follows:
1) estimating the high calorific value of the garbage;
2) measuring the water content of the garbage, and estimating the low calorific value of the garbage by combining the high calorific value obtained in the step 1;
3) measuring the water content of the sludge to estimate the high calorific value of the sludge, and combining the water content of the sludge and the high calorific value of the sludge to estimate the low calorific value of the sludge;
4) and determining the heat value of the sludge-garbage mixture based on the garbage low-level heat value and the sludge low-level heat value according to the proportion of the co-combustion sludge.
The garbage heat value has important significance for controlling actual operation parameters of primary air and secondary air distribution quantity of a garbage incineration system, feeding speed of a garbage incinerator, reciprocating speed of an incinerator discharge, residence time of garbage in the incinerator and the like. In a waste incineration power plant, if the actual heat value of the waste is analyzed in a laboratory or is cumulatively analyzed according to combustion parameters in a certain period of time, the heat value analysis result is lagged, and the real-time guidance meaning for controlling the operation condition of the waste incineration system is not great.
The calorific value is also called a calorie value or a calorific value. In fuel chemistry, an important indicator of fuel quality is expressed. The heat given off per unit mass (or volume) of fuel when completely combusted. The fuel calorific value has two types, namely a high calorific value and a low calorific value. The high calorific value is the total heat released when the fuel is completely combusted, that is, the calorific value when water vapor in the combustion product is condensed into water, and is also called gross heat. The lower heating value refers to the heating value, also called net heat, of the fuel when the water vapor in the combustion product exists in a gaseous state after the fuel is completely combusted. The difference between the high calorific value and the low calorific value is whether the water in the fuel combustion product is in a liquid state or a gaseous state, the liquid state of the water being the high calorific value, and the gaseous state of the water being the low calorific value. The lower heating value is equal to the heat of condensation of water vapor subtracted from the higher heating value. In the industry, the design parameters of the main equipment of the waste incineration plant, namely the waste incineration grate, are selected by taking the wet-based low calorific value of the waste as reference.
In the step 1, the content of non-plastic components and the content of plastic components in the garbage are estimated through garbage sorting, the content of organic matters in the non-plastic components and the plastic components is further estimated through sorting, and the high calorific value of the garbage is measured according to the following empirical formula based on the obtained data: HHV (trash) ([ E × R × a% + F × (1-R) × B% ] × 1000, unit KJ/kg, wherein: HHV (garbage) -garbage high-level heat value, R-proportion of non-plastic components in garbage, A-percentage content of organic matters in the non-plastic components in the garbage, B-percentage content of organic matters in the plastic components in the garbage, E-coefficient of heat value of the non-plastic components and F-constant of heat value of the plastic components.
The sorting operation may be manual sorting. The garbage is divided into plastic components and non-plastic components, the heat value in the garbage is usually derived from organic matter combustion, so that the content of the organic matter is further subdivided, and the high-order heat value of the garbage is estimated according to the proportion relation between the heat value coefficient of the plastic components and the heat value coefficient of the non-plastic components and the related components. The plastic component heat value coefficient and the non-plastic component heat value coefficient are different according to different regions and city grades, and as an embodiment of the scheme, the plastic component heat value constant is 32.5, and the non-plastic component heat value constant is 23.1.
In the step 2, estimating the water content of the garbage, and measuring the low calorific value of the garbage according to the following empirical formula by combining the high calorific value data in the step 1: LHV (waste) × (100-H × W1%)/(100-I-W1%), units KJ/kg, wherein: HHV (garbage) -garbage high-order heat value, LHV (garbage) -garbage low-order heat value, W1% -garbage water content, H-water content heat value loss coefficient and I-water content heat value correction coefficient. The estimation method of the water content of the garbage comprises the following steps: placing the sample garbage sample on a screen frame, squeezing for about 10 minutes by using an iron plate, weighing the weight of the squeezed garbage sample, and estimating the water content of the garbage sample according to an empirical formula: w1 ═ 100/M1+30 (M1-M2), wherein M1-weight of garbage sample before pressing, M2-weight of garbage sample after pressing, W1% — moisture content of garbage.
The water content of the garbage is measured by adopting a manual physical squeezing method, and empirical data shows that the residual water of the garbage is about 30 percent after the garbage is treated by the method, so that the garbage is corrected in a formula. And calculating to obtain the low calorific value of the garbage according to the calorific value loss coefficient of the water content and the calorific value correction coefficient of the water content by using the obtained high calorific value data and the water content. The waste in different areas has different loss systems and correction coefficients, and as one embodiment of the scheme, the heat value loss coefficient of the water content is 24.1, and the heat value correction coefficient of the water content is 0.19.
In the step S3, the high calorific value of the sludge is estimated by measuring the moisture content of the sludge, and the low calorific value of the sludge is estimated by the moisture content and the high calorific value of the sludge. In one embodiment of the present disclosure, the moisture content of the sludge is measured by a halogen moisture rapid analyzer. The estimation formula of the high heat value and the low heat value is as follows: HHV (sludge) ═ J/{1+ [ exp (W2+10)/8) ] } + K, units KJ/kg, where: HHV (sludge) -sludge high-level heat value, W2% -sludge water content, J-sludge wet-based heat value constant and K-sludge dry-based heat value constant; LHV (sludge) ═ HHV (sludge) × (1-W2/100) -2100 × W2/100, wherein: LHV (sludge) -sludge low-grade heat value, W2% -sludge moisture content.
And (4) estimating the high calorific value of the sludge according to the dry basis calorific value constant and the wet basis calorific value constant of the sludge by combining the water content of the sludge. And estimating the low calorific value of the sludge according to the estimated high calorific value and the estimated moisture content of the sludge. The dry-wet basis calorific value constants of the sludge in different regions and environments of different cities are different, and as an embodiment of the scheme, the dry-basis calorific value constant of the sludge is 12000, and the wet-basis calorific value constant of the sludge is 8000.
In one embodiment of the invention, the sampling of the water content of the sludge adopts multi-point sampling, the multi-point sampling is uniformly mixed, and then a sample required by the halogen moisture rapid determination instrument is taken out from the mixed sample.
In step S5, the empirical formula for measuring the heat value of the sludge-garbage mixture is:
LHV (mixed) ═ LHV (sludge) × D + LHV (garbage) × 100-D) ]/100, where: d, the proportion of the sludge blended in the waste incineration power plant.
In one embodiment of the present invention, 100kg of waste samples to be fed into the furnace are sampled at multiple points for estimation, and the sampled 100kg waste samples are uniformly stirred and divided into two parts, wherein one part is used for the estimation of the high calorific value of the waste in the step 1, and the other part is used for the estimation of the water content of the waste in the step 2, so as to measure the low calorific value of the waste.
Compared with the prior art, the invention has the beneficial effects that as the scheme is adopted: 1. the scheme discloses a method for quickly estimating the heat value of a garbage-sludge co-incineration mixed material, which can quickly obtain a more accurate heat value through simple estimation before the mixture enters a furnace, and determine the combustion property of the mixture of the garbage entering the furnace, thereby being beneficial to operating personnel of a garbage incineration power plant to grasp and adjust the operation condition of a garbage incineration system in time according to the heat value of the material entering the furnace; 2. the method fully considers the classification of different components in the garbage, ensures that sufficient multi-point sampling samples are provided, corrects parameters of links which are easy to generate errors in the implementation steps, obtains a low-grade calorific value through a high-grade calorific value, and ensures that the finally obtained data has high accuracy; 3. the method has the advantages of simple steps, easy implementation, low investment cost, no need of sample sending and external measurement, and test time of only about 1.5 hours, can adapt to the parameter adjustment and tracking requirements of the waste incineration system, and is worthy of popularization.
Drawings
FIG. 1 is a schematic diagram of the steps of the sludge-refuse heat value determination method of the present invention.
Detailed Description
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
As shown in figure 1, the invention discloses a method for measuring the calorific value of a sludge-garbage co-incineration mixed material, which comprises the following steps:
1) the total quantity of 100kg of garbage sampled at multiple points in the garbage storage pit is uniformly mixed by manual stirring and then divided into two parts, which are respectively marked as A part and B part.
2) Estimating the high calorific value of the garbage; a part of garbage is taken and sorted mechanically or manually, the content of non-plastic components and the content of plastic components in the garbage are measured by weight, the content of organic matters in the non-plastic components and the plastic components is further sorted and estimated, and the high calorific value of the garbage is measured according to the following empirical formula based on the obtained data: HHV (trash) × 1000 [23.1 × R × a% +32.5 × (1-R) × B% ] × 1000 with KJ/kg, where: HHV (garbage) -garbage high-grade calorific value, R-proportion of non-plastic components in garbage, A-percentage content of organic matters in the non-plastic components in the garbage, and B-percentage content of organic matters in the plastic components in the garbage.
3) Measuring the water content of the garbage, and estimating the low calorific value of the garbage by combining the high calorific value obtained in the step 1; the estimation method of the water content of the garbage comprises the following steps: placing B parts of the sampled garbage sample on a screen frame, squeezing for about 10 minutes by using an iron plate, weighing the weight of the squeezed garbage sample, and estimating the water content of the garbage sample according to an empirical formula: w1 ═ 100/M1+30 (M1-M2), wherein M1-weight of garbage sample before pressing, M2-weight of garbage sample after pressing, W1% — moisture content of garbage. After the water content of the garbage is estimated, the low calorific value of the garbage is measured according to the following empirical formula by combining the high calorific value data in the step 1: LHV (waste) × (100-24.3 × W1%)/(100-0.19-W1%) in KJ/kg, wherein: HHV (garbage) -garbage high heat value, LHV (garbage) -garbage low heat value, W1% -garbage moisture content.
4) Measuring the water content of the sludge to estimate the high calorific value of the sludge, and combining the water content of the sludge and the high calorific value of the sludge to estimate the low calorific value of the sludge; sampling of the water content of the sludge adopts multi-point sampling, after the multi-point sampling is uniformly mixed, taking out a sample required by the rapid halogen moisture tester from the mixed sample to measure the water content. The estimation formula of the high heat value and the low heat value is as follows: HHV (sludge) ═ 8200/{1+ [ exp (W2+10)/8) ] } +12000, units KJ/kg, where: HHV (sludge) -high heating value of sludge, W2% -water content of sludge; LHV (sludge) ═ HHV (sludge) × (1-W2/100) -2100 × W2/100, wherein: LHV (sludge) -sludge low-grade heat value, W2% -sludge moisture content.
5) And determining the heat value of the sludge-garbage mixture based on the garbage low-level heat value and the sludge low-level heat value according to the proportion of the co-combustion sludge. LHV (total) ═ LHV (sludge) × D + LHV (garbage) × 100-D) ]/100, where: d, the proportion of the sludge blended in the waste incineration power plant.
The method is adopted to measure the heat value of the sludge-garbage mixture before entering the furnace in a garbage incineration plant.
Examples
Taking a Wanxing environmental protection power plant in metropolis as an example, selecting a sludge-garbage incineration mixture before entering a furnace for measurement, randomly selecting 20kg of garbage at 5 distributed points in a garbage storage pit, wherein the total amount of the garbage is 100kg, averagely dividing the garbage into two groups, and measuring by adopting the measurement method.
In the high calorific value estimation of garbage, the non-plastic component content R of the sampled garbage of the plant was measured to be 40%, the organic matter content a of the non-plastic component was measured to be 50%, the organic matter content B of the plastic component was measured to be 20%, HHV (garbage) was measured to be 8527.2KJ/Kg according to the empirical formula of [23.1 × R × a% +32.5 × (1-R) × B% ] × 1000.
In the estimation step of the lower calorific value of the garbage, the weight M1 before the garbage is pressed is 50Kg, the weight M2 after the garbage is pressed is 45Kg, the water content W1 of the garbage is measured to be 40% according to W1 ═ (M1-M2) × 100/M1+30, HHV (garbage) and W1 are combined, and LHV (garbage) × (100-24.3 × W1%)/(100-0.19-W1%) is obtained according to a formula LHV (garbage) × (HHV (garbage) × (100-24.3 × W1%), so that LHV (garbage) is 7743.3 KJ/Kg.
In the sludge calorific value measuring step, firstly, taking sludge samples at more than three points, mixing the sludge samples, taking out a spoon of the sludge samples, quantitatively feeding the mixture into a halogen moisture rapid determinator to measure the water content W2 of the sludge to be 45%, and measuring HHV (sludge) to be 8200/{1+ [ exp (W2+10)/8) ] } +12000 according to an empirical formula, wherein the unit KJ/kg is 12008.5 KJ/kg; LHV (sludge) was measured to be 5659.7KJ/kg from HHV (sludge) (1-W2/100) to 2100W 2/100.
Finally, the sludge co-combustion ratio D was selected to be 0.5%, and the LHV (mixed) was found to be 7639.1KJ/kg based on LHV (mixed) ═ LHV (sludge) × D + LHV (garbage) × (100-D) ]/100.
As an application in different areas, the corresponding constant settings can be adjusted according to the composition of the waste and the characteristics of the sludge in the area, so as to estimate a more accurate heat value result.
And controlling the primary air and secondary air distribution quantity, the garbage feeding speed, the grate reciprocating speed and the residence time in the furnace of the garbage incineration system according to the heat value data. The garbage heat value does not need to be estimated laggarly according to a plurality of parameters such as the flue gas temperature, the flue gas quantity, the air temperature, the oxygen content, the temperature of the combustion furnace and the like generated in the combustion process, and the passive and laggard combustion control is avoided. The method is particularly suitable for a waste incineration power plant which is used for incinerating sludge cooperatively, can quickly determine the heat value of the waste and the heat value of the sludge according to the method, and can quickly determine the heat value of the mixed material entering the furnace according to the sludge blending combustion ratio. Thereby being beneficial to the operating personnel of the waste incineration power plant to grasp and adjust the operation condition of the waste incineration system in time according to the calorific value of the material entering the furnace.
Comparative example
Taking a Wanxing environmental protection power plant in Chengdu city as an example, the calorific value of the mixture entering the furnace can be measured to be 7639.1KJ/Kg only by about 1.5 hours in the example 1. Then delivering 1-2kg of the same sludge sample and 50-100kg of the same garbage sample to a third-party detection mechanism to determine the calorific value of the mixed material. The third party organization adopts an oxygen bomb calorimeter to detect the heat value, measures and calculates the garbage heat value data by using methods such as an industrial analysis and prediction empirical model, a physical component analysis and prediction empirical model, an element analysis and prediction model and the like after the measurement is finished, and uses the heat value data measured by the above method to revise the heat value data measured by the oxygen bomb calorimeter. After the whole measuring procedure takes several days from the sending of the sample to the receiving of the report, the calorific value of the mixed material is 7278 KJ/Kg. The error of the heat value of the mixed material determined by the method of the invention is calculated to be not more than +/-5%.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (8)
1. A method for measuring the calorific value of a sludge-garbage synergetic incineration mixed material is characterized by comprising the following steps of:
1) estimating the high calorific value of the garbage;
2) measuring the water content of the garbage, and estimating the low calorific value of the garbage by combining the high calorific value obtained in the step 1;
3) measuring the water content of the sludge to estimate the high calorific value of the sludge, and combining the water content of the sludge and the high calorific value of the sludge to estimate the low calorific value of the sludge;
4) determining the heat value of the sludge-garbage mixture based on the garbage low heat value and the sludge low heat value according to the proportion of the co-combustion sludge; the estimation formula of the high calorific value and the low calorific value of the sludge is as follows:
HHV (sludge) ═ J/{1+ [ exp (W2+10)/8) ] } + K, units KJ/kg,
wherein: HHV (sludge) -high calorific value of sludge,
w2 percent, the water content of the sludge,
j-sludge wet basis heat value constant,
k-sludge dry basis heat value constant;
LHV (sludge) ═ HHV (sludge) ((1-W2/100) -2100 × W2/100);
wherein: LHV (sludge) -sludge low calorific value,
w2 percent, the water content of the sludge;
and in the step 2, estimating the water content of the garbage, and measuring the low calorific value of the garbage according to the following empirical formula by combining the high calorific value data in the step 1:
LHV (garbage) × (100-H × W1%)/(100-I-W1%), units KJ/kg,
LHV (refuse) -refuse lower calorific value,
w1% -moisture content of garbage,
h-the heat value loss coefficient of the water content,
i-water content heat value correction coefficient.
2. The method for measuring the calorific value of a sludge-garbage co-incineration mixed material according to claim 1, wherein in the step 1, the content of non-plastic components and the content of plastic components in garbage are measured by garbage sorting, the content of organic matters in the non-plastic components and the content of organic matters in the plastic components are further measured by sorting, and the calorific value of the garbage is measured according to the following empirical formula based on the obtained data:
HHV (garbage) ([ E × R × a% + fx (1-R) × B% ] × 1000, unit KJ/kg,
wherein: HHV (garbage) -high calorific value of garbage,
r is the proportion of non-plastic components in the garbage,
a-percentage of organic matter in the non-plastic refuse component,
b-percentage of organic matter in the plastic component in the waste,
e-coefficient of calorific value of non-plastic component,
f-plastic component calorific value constant.
3. The method for measuring the calorific value of the sludge-garbage co-incineration mixed material according to claim 1, wherein the method for estimating the moisture content of the garbage comprises: placing the sample garbage sample on a screen frame, squeezing for about 10 minutes by using an iron plate, weighing the weight of the squeezed garbage sample, and estimating the water content of the garbage sample according to an empirical formula:
W1＝(M1-M2)*100/M1+30
wherein M1-weight of garbage sample before pressing,
m2 — weight of the garbage sample after pressing,
w1% -moisture content of the garbage.
4. The method for measuring the calorific value of a sludge-garbage co-incineration mixed material according to claim 1, wherein a halogen moisture rapid tester is used to measure the moisture content of the sludge.
5. The method for measuring the calorific value of a sludge-garbage co-incineration mixed material according to claim 4, wherein the sampling of the water content of the sludge is performed by multi-point sampling, the multi-point sampling is uniformly mixed, and then a sample required by a halogen moisture rapid measurement instrument is taken out of the mixed sample.
6. The method for measuring the heat value of the sludge-garbage co-incineration mixed material as claimed in claim 1, wherein the empirical formula for measuring the heat value of the sludge-garbage mixture is as follows:
LHV (mixed) ═ LHV (sludge) × D + LHV (refuse) × 100-D) ]/100,
wherein: d, the proportion of the sludge mixed in the waste incineration power plant,
LHV (sludge) -sludge low calorific value.
7. The method for measuring the calorific value of a sludge-garbage co-incineration mixed material according to claim 1, wherein 100kg of garbage samples to be fed into a furnace are sampled at multiple points for estimation, the sampled 100kg of garbage samples are uniformly stirred and divided into two parts, wherein one part is used for estimating the high calorific value of the garbage in the step 1, and the other part is used for estimating the moisture content of the garbage in the step 2, so that the low calorific value of the garbage is measured.
8. The method for measuring the calorific value of a sludge-refuse co-incineration mixed material according to claim 2, wherein the refuse sorting is performed by manual sorting.
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| CN111237765A (en) * | 2019-11-28 | 2020-06-05 | 武汉九象云大数据科技有限公司 | Garbage pretreatment system and method for garbage proportioning based on information technology |
| CN112326712B (en) * | 2020-09-29 | 2023-04-21 | 华能莱芜发电有限公司 | Detection method for sludge calorific value |
| CN112183883B (en) * | 2020-10-19 | 2023-12-15 | 浦湘生物能源股份有限公司 | Incineration heat value prejudging method and system for household garbage and incineration system |
| CN113139015B (en) * | 2021-04-16 | 2024-03-22 | 广州大学 | Household garbage energy space distribution information processing method, system, device and medium |
| CN113357649B (en) * | 2021-07-02 | 2022-07-22 | 上海康恒环境股份有限公司 | Garbage pool material control method and device and incineration cooperative processing system |
| CN116843836A (en) * | 2023-07-06 | 2023-10-03 | 上海市政工程设计研究总院（集团）有限公司 | Sludge management method, sludge management system and use method thereof |
| CN116989335B (en) * | 2023-09-28 | 2024-01-05 | 杭州集益科技有限公司 | Online tracking analysis method and system before garbage is burned in furnace |
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