CN111911929A - Fuel rod and liquid hazardous waste compatible incineration treatment process - Google Patents
Fuel rod and liquid hazardous waste compatible incineration treatment process Download PDFInfo
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- CN111911929A CN111911929A CN202010910543.2A CN202010910543A CN111911929A CN 111911929 A CN111911929 A CN 111911929A CN 202010910543 A CN202010910543 A CN 202010910543A CN 111911929 A CN111911929 A CN 111911929A
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- compatible
- liquid hazardous
- liquid
- hazardous waste
- fuel rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention relates to a fuel rod and liquid hazardous waste compatible incineration treatment process, which utilizes the high water absorbability of fuel rods to quickly adsorb liquid hazardous waste or control the water content of compatible materials, and simultaneously utilizes the characteristics of high calorific value and low water content of fluffy materials to improve the calorific value of the final compatible mixture, so that the compatible mixture can be effectively incinerated, and the material treatment efficiency is improved. In addition, the fuel rods and the fluffy materials are common materials in solid waste treatment companies, the fuel rods are prepared by adding biomass combustion improvers (crushed sawdust and straws) into sludge, the treatment cost cannot be greatly improved, the possible corrosion risk of injection treatment of the spray gun by liquid hazardous wastes is overcome, the treatment efficiency is higher, a large number of treatment tasks can be completed in a short time, and a feasible way is provided for resource utilization of sludge (fuel rods) in a sewage plant.
Description
Technical Field
The invention relates to the technical field of environment-friendly treatment, in particular to the technical field of liquid hazardous waste treatment, and particularly relates to a fuel rod and liquid hazardous waste compatible incineration treatment process.
Background
The material compatibility is a necessary operation process before the materials enter the incineration system, namely, the physical and chemical properties of the calorific value, the volatile components, the sulfur and chlorine content, the ash characteristics, the packaging and the like of the materials to be incinerated are combined, and the materials are reasonably homogenized in shape, calorific value, components and the like, so that the purposes of stable, controllable, uniform and balanced combustion of the incinerated components entering a kiln are achieved.
In the conventional hazardous waste materials, more than half of the liquid and semisolid hazardous wastes are contained; the liquid and semi-solid hazardous waste has large difference of heat value, pH value and flash point and complex chemical composition. If the liquid hazardous waste is directly sprayed into the incinerator for treatment through the spray gun, great fluctuation or spray gun blockage and other process accidents can be caused to the incineration working condition. Moreover, the liquid wastes containing a large amount of liquid wastes with lower calorific value are not suitable for atomization incineration disposal by a waste liquid spray gun, so that liquid and semisolid hazardous wastes need to be pretreated by material pit compatibility and then are incinerated for disposal.
In addition, when the water content in the liquid material is higher, the ignition point and the heat value are correspondingly lower, and the atomized liquid material can not be combusted, and the combustion flame of the original material in the system can be extinguished. Therefore, the moisture content of the materials entering the kiln should be reasonably controlled.
In conclusion, how to pretreat the hazardous liquid waste to improve the heat value and reduce the water content is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The invention aims to provide a fuel rod and liquid hazardous waste compatible incineration treatment process, which solves the incineration treatment problem of liquid hazardous waste and improves the conversion rate of the liquid hazardous waste.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a fuel rod and liquid hazardous waste compatible incineration treatment process, which comprises the following treatment steps:
step S1, carrying out a small sample test by the same proportional shrinkage:
measuring the PH value of each liquid hazardous waste to be treated, mixing the liquid hazardous wastes according to a proportion to ensure that the PH value of the mixed solution is more than 4 and no volatile gas is generated, and recording the proportionality coefficient;
step S2, mixed preparation of mixed liquid hazardous waste:
mixing the liquid hazardous wastes to be processed according to the proportional coefficient obtained in the step S1 to obtain mixed liquid hazardous wastes;
step S3, mixing and preparing the compatible mixture:
mixing the mixed liquid dangerous waste obtained in the step S2 with the fluffy loose material and the fuel rods to obtain a compatible mixture, wherein the compatible mixture comprises 1 part of the mixed liquid dangerous waste, 0.3-0.5 part of the fluffy loose material and 0.5-0.8 part of the fuel rods in parts by mass;
and step S4, burning the compatible mixture in a kiln.
With respect to the above technical solutions, the applicant has further optimized embodiments.
Optionally, when the compatible mixture is proportioned in step S3 according to parts by mass, wood chips are further added, and the parts of the wood chips are 0.1-0.2 parts of wood chips.
Optionally, the heat value of the compatible mixture obtained in step S3 is not less than 3000Kcal/Kg, and the water content is less than 70%.
Optionally, the compounded mixture obtained in step S3 is a paste without liquid leakage.
Optionally, the fluffy material is a light-weight, bulky solid waste material, including a filter element, a packaging bag, or a cloth.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the fuel rod and liquid hazardous waste compatible incineration treatment process provided by the invention can be used for quickly adsorbing the liquid hazardous waste or controlling the water content of compatible materials by utilizing the high water absorbability of the fuel rods, and simultaneously, the heat value of the final compatible mixture is improved by utilizing the characteristics of high heat value and low water content of the fluffy material, so that the compatible mixture can be effectively incinerated, and the material treatment efficiency is improved. In addition, the fuel rods and the fluffy materials are common materials in solid waste treatment companies, the fuel rods are prepared by adding biomass combustion improvers (crushed sawdust and straws) into sludge, the treatment cost cannot be greatly improved, the possible corrosion risk of injection treatment of the spray gun by liquid hazardous wastes is overcome, the treatment efficiency is higher, a large number of treatment tasks can be completed in a short time, and a feasible way is provided for resource utilization of sludge (fuel rods) in a sewage plant.
Detailed Description
The technical solutions of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. 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.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
This example describes a fuel rod and liquid hazardous waste compatible incineration treatment process, wherein the fuel rod is a fuel rod that is converted from sludge into a higher calorific value by adding biomass combustion improver (crushed wood chips and straw) in order to realize resource utilization of sludge in a sewage treatment plant.
In this embodiment, 5 kinds of liquid hazardous wastes are used as test materials, and the physicochemical properties of the five kinds of liquid hazardous wastes are as follows:
| numbering | pH | Flash Point (. degree.C.) | Calorific value (Kcal/Kg) |
| Liquid hazardous waste A | 5 | >60 | 611 |
| Liquid hazardous waste B | 1 | >60 | 865 |
| Liquid hazardous waste C | 4 | >60 | 861 |
| Liquid hazardous waste D | 1 | >60 | 1043 |
| Liquid hazardous waste E | 7 | >60 | 481 |
It can be easily found that the pH difference of the 5 kinds of hazardous waste liquid is large. Indicating that there may be significant differences in their chemical properties. Due to the large inventory and possible corrosiveness, the risk of equipment corrosion exists when the liquid spray gun enters the incineration system for disposal, the disposal efficiency is not high, and the disposal task is difficult to complete in a short time. Since there is a possibility of mutual chemical reaction, it is necessary to verify the compatibility thereof.
In the primary experiment process, the five kinds of liquid hazardous wastes are mixed according to the same proportion to generate a bubbling phenomenon, which indicates that a chemical reaction occurs and volatile substances are generated, the pH of the mixed solution is 2, the volatile substances are easy to form aerosol above the compatibility pool, and the mass points of the aerosol have quite large specific surface and surface energy, so that some chemical reactions which are quite slow under ordinary conditions can be carried out very quickly, and even explosion can be caused.
This embodiment confirms that liquid danger can take place the reaction after useless E adds through many times of experiments, nevertheless if reject useless E of liquid danger, the useless same proportion mixed solution pH of other 4 kinds of liquid dangers is 1, has strong corrosivity. Therefore, in this embodiment, the adding proportion of the liquid hazardous waste E is selected to be adjusted, so that 5 kinds of liquid hazardous waste are mixed according to the proportion of 1:1:1:1:8 to obtain mixed liquid hazardous waste, the pH of the mixed liquid hazardous waste is greater than 4, and the subsequent treatment is continued.
This embodiment carries out the testing result to the main material that carries out the material of compatibility, useless, fuel rod and fluffy material of mixed liquid danger promptly chemical property as follows:
| name of material | Calorific value (Kcal/Kg) | Moisture (%) | Ash (%) |
| Fuel rod | 3165 | 17.3 | 25.5 |
| Mixed liquid hazardous waste | 500 | 89.2 | 2.56 |
| Fluffy material | 10262 | 0.70 | 5.01 |
It can be easily found that the calorific value of the fuel rod is higher than that of the mixed liquid but higher than that of the mixed liquid, if the fuel rod is mixed alone, the calorific value cannot be obviously improved, but the water content is low, and the fuel rod can effectively absorb water. The fluffy material is solid waste with light weight and large volume, and comprises a filter element, a packaging bag or cloth, and the like, and the fluffy material has high heat value, low moisture content and poor water absorption. Therefore, the target calorific value of the final blend is set to 3000Kcal/Kg, the moisture content is less than 70% and no liquid drips when the blend is grabbed by hands in sense in the embodiment by considering the combination of the characteristics of the blend and the water.
Mix according to aforementioned 5 kinds of liquid danger wastes that obtain the proportionality coefficient and treat and get mixed liquid danger and useless, continue to mix mixed liquid danger and useless the carrying out of compatibility, in this embodiment, adopt the mass fraction of fuel rod, mixed liquid danger waste and fluffy pine material to mark: 1 part of fluffy material, 3 parts of mixed liquid hazardous waste and 2 parts of fuel rod.
After the compatibility, the average calorific value of the compatible mixture after three tests is 3029Kcal/Kg (RSD is 2.56%), water is 63.0%, ash content is 7.91%, volatile matter is 28.4%, and pH value is 4.
When partial water remains, a proper amount of sawdust can be added into the compatible mixture one by one, and the adding proportion is controlled to be 0.2-0.6 parts of sawdust, so that the heat value is further improved, the water content is reduced, and the subsequent incineration treatment is facilitated.
And finally, sending the compatible mixture after compatibility to a burning kiln for burning treatment.
To sum up, the fuel rod and useless incineration disposal technology of compatibility of liquid danger of this application, it utilizes the super absorbent nature of fuel rod can adsorb useless or be used for the control of compatible material moisture content fast, utilizes the high calorific value of fluffy pine material, the calorific value of the final compatible mixture of low water content's characteristics to improve simultaneously for compatible mixture can carry out incineration disposal effectively, improves material treatment efficiency. In addition, the fuel rods and the fluffy materials are common materials in solid waste treatment companies, the fuel rods are prepared by adding biomass combustion improvers (crushed sawdust and straws) into sludge, the treatment cost cannot be greatly improved, the possible corrosion risk of injection treatment of the spray gun by liquid hazardous wastes is overcome, the treatment efficiency is higher, a large number of treatment tasks can be completed in a short time, and a feasible way is provided for resource utilization of sludge (fuel rods) in a sewage plant.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the invention, and not to limit the scope of the invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (5)
1. A fuel rod and liquid hazardous waste compatibility incineration treatment process is characterized by comprising the following treatment steps:
step S1, carrying out a small sample test by the same proportional shrinkage:
measuring the PH value of each liquid hazardous waste to be treated, mixing the liquid hazardous wastes according to a proportion to ensure that the PH value of the mixed solution is more than 4 and no volatile gas is generated, and recording the proportionality coefficient;
step S2, mixed preparation of mixed liquid hazardous waste:
mixing the liquid hazardous wastes to be processed according to the proportional coefficient obtained in the step S1 to obtain mixed liquid hazardous wastes;
step S3, mixing and preparing the compatible mixture:
mixing the mixed liquid dangerous waste obtained in the step S2 with the fluffy loose material and the fuel rods to obtain a compatible mixture, wherein the compatible mixture comprises 1 part of the mixed liquid dangerous waste, 0.3-0.5 part of the fluffy loose material and 0.5-0.8 part of the fuel rods in parts by mass;
and step S4, burning the compatible mixture in a kiln.
2. The fuel rod and liquid hazardous waste compatible incineration treatment process according to claim 1, characterized in that wood chips are further added when the compatible mixture is proportioned in the step S3 according to the mass part ratio, and the part of the wood chips is 0.1-0.2 parts of wood chips.
3. The fuel rod and liquid hazardous waste compatible incineration treatment process according to claim 1 or 2, wherein the heat value of the compatible mixture obtained in step S3 is not less than 3000Kcal/Kg, and the water content is less than 70%.
4. The fuel rod and liquid hazardous waste compatible incineration processing technology according to claim 3, wherein the compatible mixture obtained in the step S3 is a paste without liquid leakage.
5. The fuel rod and liquid hazardous waste compatible incineration treatment process according to claim 1, wherein the fluffy material is a light-weight and large-volume solid waste material comprising a filter element, a packaging bag or a cloth material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910543.2A CN111911929B (en) | 2020-09-02 | 2020-09-02 | Fuel rod and liquid hazardous waste compatible incineration treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010910543.2A CN111911929B (en) | 2020-09-02 | 2020-09-02 | Fuel rod and liquid hazardous waste compatible incineration treatment process |
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| Publication Number | Publication Date |
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| CN111911929A true CN111911929A (en) | 2020-11-10 |
| CN111911929B CN111911929B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010910543.2A Active CN111911929B (en) | 2020-09-02 | 2020-09-02 | Fuel rod and liquid hazardous waste compatible incineration treatment process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112330258A (en) * | 2020-12-01 | 2021-02-05 | 神彩科技股份有限公司 | Incineration compatibility method and device, terminal equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2005305314A (en) * | 2004-04-22 | 2005-11-04 | Chiyoda Engineering Kk | System for treating waste liquid containing solid |
| CN105885995A (en) * | 2016-05-12 | 2016-08-24 | 安徽省珍云生物能源有限公司 | High-combustion-value fuel rod and manufacturing process thereof |
| CN105950250A (en) * | 2016-05-12 | 2016-09-21 | 安徽省珍云生物能源有限公司 | Environment-friendly and inflammable fuel rod and manufacturing process thereof |
| CN106116000A (en) * | 2016-06-30 | 2016-11-16 | 高明逊 | A kind of mainly utilize biomass material by the method for industrial wastes taste removal, turning sludge into fuel and resource |
| CN108800153A (en) * | 2016-08-01 | 2018-11-13 | 北京北控环保工程技术有限公司 | Dangerous waste object burning process |
-
2020
- 2020-09-02 CN CN202010910543.2A patent/CN111911929B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005305314A (en) * | 2004-04-22 | 2005-11-04 | Chiyoda Engineering Kk | System for treating waste liquid containing solid |
| CN105885995A (en) * | 2016-05-12 | 2016-08-24 | 安徽省珍云生物能源有限公司 | High-combustion-value fuel rod and manufacturing process thereof |
| CN105950250A (en) * | 2016-05-12 | 2016-09-21 | 安徽省珍云生物能源有限公司 | Environment-friendly and inflammable fuel rod and manufacturing process thereof |
| CN106116000A (en) * | 2016-06-30 | 2016-11-16 | 高明逊 | A kind of mainly utilize biomass material by the method for industrial wastes taste removal, turning sludge into fuel and resource |
| CN108800153A (en) * | 2016-08-01 | 2018-11-13 | 北京北控环保工程技术有限公司 | Dangerous waste object burning process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112330258A (en) * | 2020-12-01 | 2021-02-05 | 神彩科技股份有限公司 | Incineration compatibility method and device, terminal equipment and storage medium |
| CN112330258B (en) * | 2020-12-01 | 2021-11-23 | 神彩科技股份有限公司 | Incineration compatibility method and device, terminal equipment and storage medium |
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| Publication number | Publication date |
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| CN111911929B (en) | 2022-08-19 |
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