CN109609230B - Harmless and resource utilization method for printing and dyeing sludge - Google Patents
Harmless and resource utilization method for printing and dyeing sludge Download PDFInfo
- Publication number
- CN109609230B CN109609230B CN201811641689.0A CN201811641689A CN109609230B CN 109609230 B CN109609230 B CN 109609230B CN 201811641689 A CN201811641689 A CN 201811641689A CN 109609230 B CN109609230 B CN 109609230B
- Authority
- CN
- China
- Prior art keywords
- printing
- dyeing sludge
- sludge
- dyeing
- harmless
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/04—Raw material of mineral origin to be used; Pretreatment thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
-
- 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
-
- 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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Coloring (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention relates to a method for harmless and resource utilization of printing and dyeing sludge; belongs to the technical field of printing and dyeing sludge treatment. Dehydrating the printing and dyeing sludge until the water content is less than or equal to 60 percent; obtaining the standby printing and dyeing sludge; printing and dyeing sludge for standby: (the ratio of the standby printing and dyeing sludge and the pulverized coal) is less than or equal to 0.15; preparing standby printing and dyeing sludge and coal powder; uniformly mixing the prepared standby printing and dyeing sludge and coal powder, and drying to prepare powder; obtaining fuel; the fuel is sent into a pulverized coal furnace for combustion, the generation and outlet concentration of dioxin are lower, the emission standard of European Union 2000 is better, and the emission standard is far better than the local standard of Guangdong province (2000/76/EC). The invention realizes the harmless and resource utilization of the printing and dyeing sludge. Meanwhile, the method has simple, stable and controllable process and is convenient for large-scale industrial application.
Description
Technical Field
The invention relates to a method for harmless and resource utilization of printing and dyeing sludge; belongs to the technical field of printing and dyeing sludge treatment.
Background
The printing and dyeing industry is a strut type industry in China and is also one of industries with relatively large pollutant emission. The quality of the printing and dyeing wastewater is complex, and pollutants can be divided into two types according to sources: a type of entrainment from the fibrous material itself; the other type is slurry, oil agent, dye, chemical auxiliary agent and the like used in the processing process, and main chemical components in different types of printing and dyeing wastewater and printing and dyeing sludge are different. For example, the pollutants in the bleaching and dyeing wastewater are mainly zeolite, slurry, sulfur black, indigo dye, industrial washing powder, surfactant, anhydrous sodium sulphate, sodium sulfite, soda, caustic soda and the like added in the dyeing and rinsing processes of clothes and cotton textile fibers. The printing and dyeing sludge is mainly from the sediment of a primary sedimentation tank generated in the processes of washing, bleaching and printing and dyeing sewage treatment and generated in the processes of anaerobic and aerobic biochemical reactionsThe residual sludge and the sediment generated by the secondary physicochemical reaction and the chemical precipitation. Due to the characteristics of large water quality change, high organic pollutant concentration, large chromaticity and pH value change and the like of the printing and dyeing wastewater, the components of the printing and dyeing sludge are complex, and the content of individual heavy metal elements is particularly high. The amount of the printing and dyeing sludge is generally equivalent to the mass of suspended matters in the printing and dyeing wastewater, if advanced treatment is carried out, the amount of the sludge is increased by 0.5-1 time, and the increase of the amount of the sludge is inevitably caused along with the improvement of the sewage treatment efficiency[1]. The wet sludge has the characteristics of large volume, high organic matter content, easy putrefaction, high heavy metal content and malodor, and can cause serious secondary pollution if not being thoroughly treated and disposed.
The components of the printing and dyeing sludge are very complex, besides a large amount of water, the printing and dyeing sludge also comprises a large amount of organic matters and pollutants such as pathogenic microorganisms, parasitic ova, heavy metals and the like, and if the printing and dyeing sludge is directly discharged into the environment without any measures, serious secondary pollution is caused, so that the treatment and disposal problems of the printing and dyeing sludge become the focus of wide attention at home and abroad. The standards for sludge treatment established in the united states and the european union all impose strict restrictions on the indexes of heavy metals, pathogenic bacteria, organic pollutants and the like in sludge. Among them, the european union classifies the biological sludge of sewage plants as "special garbage", and it is necessary for qualified enterprises to properly treat the sludge according to prescribed procedures without discarding the sludge. Meanwhile, the discharge standard of pollutants for municipal wastewater treatment plants (GB 18918-2002) issued by the national environmental protection Bureau of China also increases the content of sludge control in particular, and puts concrete requirements on the discharge of municipal sludge. Printing and dyeing sludge is also listed as strictly controlled waste in Guangdong province, and compared with sludge in municipal sewage plants, the sludge is more strictly managed and the treatment and disposal requirements are higher.
Because the sludge is a liquid-solid phase mixture, presents a slurry state characteristic, and the liquid-solid mixed state has certain stability, the solid-liquid separation can be realized only when great external acting force (physical and chemical) is applied, so that the sludge treatment and disposal technical system is more complex compared with other solid or liquid waste treatment systems, and how to scientifically, efficiently and reasonably treat the sludge becomes a topic which is commonly concerned by experts and scholars at home and abroad. In addition, the components of the printing and dyeing sludge are very complex, besides a large amount of water, the printing and dyeing sludge also comprises a large amount of pollutants such as organic matters, heavy metals and the like, and secondary pollution can be caused if scientific and effective measures are not taken for treatment. The current sludge treatment method generally comprises three stages of pretreatment, intermediate treatment and final disposal. The pretreatment generally comprises the processes of concentration, digestion, dehydration and the like; the intermediate treatment generally comprises the processes of composting, drying, alkaline stabilization, burning and the like; the final disposal of the sludge mainly comprises land utilization, sanitary landfill, landfill or utilization after sludge incineration, building material utilization and the like. The incineration treatment of sludge has been studied at home and abroad; however, the case of using a large-scale pulverized coal furnace power plant to carry out the large-scale co-combustion of the printing and dyeing sludge and the coal is not reported.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for harmless and resource utilization of printing and dyeing sludge.
The invention relates to a harmless and resource utilization method of printing and dyeing sludge, which comprises the following steps:
dehydrating the printing and dyeing sludge until the water content is less than or equal to 60 percent; obtaining the standby printing and dyeing sludge;
when the water content of the standby printing and dyeing sludge is 40.1-60%; printing and dyeing sludge for standby: (spare printing and dyeing sludge + coal dust) is less than or equal to 0.1; preparing standby printing and dyeing sludge and coal powder;
when the water content of the standby printing and dyeing sludge is less than or equal to 40 percent; printing and dyeing sludge for standby: (the ratio of the standby printing and dyeing sludge and the pulverized coal) is less than or equal to 0.15; preparing standby printing and dyeing sludge and coal powder;
uniformly mixing the prepared standby printing and dyeing sludge and coal powder, and drying to prepare powder; obtaining fuel;
feeding the fuel into a pulverized coal furnace for combustion; and collecting dust in the flue gas.
The fineness of the fuel R90 is 16-19%.
The invention relates to a method for harmless and resource utilization of printing and dyeing sludge, which comprises the following steps: when the ratio of (standby printing and dyeing sludge + coal powder) is less than or equal to 0.1; adding OFA nozzles on secondary air on the uppermost layer of the pulverized coal furnace; the OFA nozzle is reversely cut by a 10-20 furnace, and the selection is preferably 15. The OFA nozzle reverse cutting 10-20 furnaces, preferably 15 furnaces, can form reverse rotating airflow so as to reduce residual rotation of the airflow in the furnaces and reduce deviation of smoke temperature on two sides of a hearth outlet. And the interweaving of the positive and negative air flows increases the retention time of the coal powder in the furnace, thereby being beneficial to the burning-out of the coal powder. The diameter of the top secondary air tangent circle is larger than that of the primary air tangent circle, the primary air pulverized coal airflow is concentrated in the center of the hearth, and an 'air-powder-coated' combustion mode of a fuel-rich area and an oxygen-rich area of the furnace wall in the center of the hearth is formed, so that the chance that the pulverized coal airflow scours the water-cooled wall is reduced, and the furnace wall slagging of a combustor area is favorably prevented and reduced. After the OFA is increased, the air volume of the single secondary air is changed, so that the secondary air nozzle is also changed. In the original engineering, each layer of secondary air is led out by a separate air pipe, so that the condition of uneven distribution of each layer of secondary air at four corners is easy to occur. Therefore, the original single-layer secondary air pipe is led out by the small air boxes at four corners. The inlet of the secondary air box uses lower wind speed, and an isobaric air chamber is formed in the air box, so that the secondary air distribution is uniform.
The invention relates to a method for harmless and resource utilization of printing and dyeing sludge, which comprises the following steps: when the ratio of (standby printing and dyeing sludge + coal powder) is less than or equal to 0.1; and controlling the total air volume of the primary air nozzle to be 8%.
Compared with the prior art, the primary air nozzle has certain change; in the invention, the primary air speed is reduced, and the area of the nozzle of the combustor is adjusted to ensure safe combustion. In order to protect the nozzles and improve the low-load stable combustion capacity, peripheral air is added around the nozzles, the air volume accounts for about 8% of the total air volume, and the peripheral air volume can be adjusted according to the working condition requirements. Considering that the sludge has certain coking property, the scheme can prevent the water-cooled wall of the combustor area from coking.
The invention relates to a method for harmless and resource utilization of printing and dyeing sludge, which comprises the following steps: when the ratio of (standby printing and dyeing sludge + coal powder) is less than or equal to 0.1; in order to avoid the serious dust accumulation phenomenon in the economizer area, the pitch of the upper-level economizer is controlled to be 85-90mm, and the pitch of the upper-level economizer is controlled to be 125-135 mm.
The invention relates to a harmless and resource utilization method of printing and dyeing sludge, wherein a pulverized coal furnace is a high-temperature high-pressure natural circulation pulverized coal furnace; the high-temperature high-pressure natural circulation pulverized coal furnace is a pulverized coal furnace with a steel framework suspension structure, single furnace chamber open-air arrangement, balanced ventilation, a four-corner tangential combustion mode and solid-state slag discharge.
The invention relates to a harmless and resource utilization method of printing and dyeing sludge, wherein the rated evaporation capacity of a pulverized coal furnace is as follows: 420t/h, rated steam pressure: 9.81MPa (g), furnace temperature: 1400-1500 ℃, rated steam temperature: 540 ℃ and feed water temperature: 215 ℃ and the thermal efficiency of the boiler: 91.2% and exhaust gas temperature: the lowest oil-free stable combustion load is less than or equal to 40 percent at the temperature of 131 ℃.
The invention relates to a method for harmless and resource utilization of printing and dyeing sludge, wherein a manufacturing plant of a pulverized coal furnace is Oriental boiler industry company; the model is DG 450/9.81-9.
The invention relates to a harmless and resource utilization method of printing and dyeing sludge, wherein outlet concentrations of dioxin in flue gas generated by blending and burning of the printing and dyeing sludge are all less than 0.035I-TEQng-TEQ/m3。
The invention relates to a harmless and resource utilization method of printing and dyeing sludge, which can realize effective utilization of wastes. And simultaneously, the influence of harmful substances is reduced to the minimum.
Principles and advantages
The invention utilizes the characteristics of high temperature of a hearth of a pulverized coal furnace and higher heat value of printing and dyeing sludge, utilizes a powder making system to ensure that sludge and fire coal are preheated and dried in the powder making system firstly, then are uniformly sprayed into the hearth together with the fire coal for incineration, fully utilizes the heat value of the sludge to realize comprehensive utilization of energy, simultaneously converts organic matters in the sludge into gases such as carbon dioxide and the like through high-temperature incineration, achieves the aim of tail gas purification through an atmospheric pollution treatment facility of a thermal power plant, ensures that pollutants such as heavy metals and the like are mainly and stably existed in bottom slag after high-temperature incineration, finally enters the fly ash through a dust remover, can be used for manufacturing cement, ceramsite or building bricks for solidification, and realizes harmlessness and. The invention utilizes the characteristics of the structure of the pulverized coal furnace, slightly modifies the hearth, adjusts partial operation parameters, and realizes harmless and resource blending combustion of the printing and dyeing sludge.
Drawings
FIG. 1 is a flow chart of a sludge co-combustion process in a PCFB boiler (DG 420/9.82-II);
FIG. 2 is a schematic diagram of sludge blending combustion and sludge production links;
wherein 1 is a ball mill, 2 is a coarse and fine powder separator, 3 is a pulverized coal bin, 4 is a superheater, 5 is a hearth, 6 is an economizer, 7 is an SCR denitration device, 8 is an air preheater, 9 is a dust remover, 10 is a wet desulfurization tower, and 11 is a chimney.
Detailed Description
Example 1
The coal burning quantity of the boiler test design of the blending combustion selecting unit is as follows: the single furnace is 60 t/h.
The manufacturing plant of the pulverized coal furnace is Oriental boiler industry company; the model is DG 450/9.81-9.
Dehydrating the printing and dyeing sludge until the water content is less than or equal to 60 percent; obtaining the standby printing and dyeing sludge;
when the water content of the standby printing and dyeing sludge is 40.1-60%; printing and dyeing sludge for standby: (spare printing and dyeing sludge + coal dust) is less than or equal to 0.1; preparing standby printing and dyeing sludge and coal powder;
when the water content of the standby printing and dyeing sludge is less than or equal to 40 percent; printing and dyeing sludge for standby: (the ratio of the standby printing and dyeing sludge and the pulverized coal) is less than or equal to 0.15; preparing standby printing and dyeing sludge and coal powder;
uniformly mixing the prepared standby printing and dyeing sludge and coal powder, and drying to prepare powder; obtaining fuel;
feeding the fuel into a pulverized coal furnace for combustion; and collecting dust in the flue gas.
The fineness R90 of the fuel is 16-19%.
The properties of the co-combustion coal and the sludge are shown in tables 1 and 2, and the calculated pollution increment of each element of the co-combustion fuel according to the co-combustion condition, the content of the fuel element and the corresponding fuel quantity is shown in the following table 1:
TABLE 1 blending burning conditions and element increment table (unit: kg/h)
Note: the increment in the table is the increment of element content under various blending combustion conditions and no blending combustion conditions, ": "represents a decrease.
TABLE-2 theoretical analysis table (unit: kg/h) of each component before and after mixed burning
As can be seen from Table 1, the C, H, O content in the case of co-firing is significantly reduced, S, N and ash content are significantly increased, and the heavy metal increment is different in size.
The S element is increased by 6.8-38.2%, the N element is increased by 2.3-17.8%, the ash content is increased by 0.9-11.7%, the heavy metal index increment is-3.7-56.6%, the Ni increment is negative, the Zn element is the largest increment, and the whole experimental data shows that the sludge flue gas test index data with lower water content and larger blending combustion proportion is higher than the trend of the sludge with higher water content and smaller blending combustion proportion, and is basically in direct proportion to the absolute addition amount of the sludge. Through experiments, it can be seen that: the printing and dyeing sludge with the water content of 40 percent and 60 percent is mixed with coal in a proportion of 15 percent and 10 percent respectively, so that the treatment is feasible and the secondary pollution is not caused. Under the condition of a blending combustion test, compared with the condition of no blending combustion during the blending combustion of sludge, the discharge variation of sulfur dioxide and nitric oxide is small, the concentration of individual pollutants such as heavy metal, dioxin and the like is slightly increased after combustion, but the concentration variation is extremely small, after the sludge enters a flue and depends on the existing pollution control facility, the discharge pollution concentration of flue gas is equivalent to the condition of no blending combustion, the blending combustion ratios of the sludge with 60 percent of water content and 40 percent of water content can reach the relevant standard requirements, the conventional pollutants and heavy metal concentration variation of the flue gas finally discharged into the atmosphere after the blending combustion are not obvious, the standard discharge can be realized, and the standard discharge is superior to the European Union 2000 standard level. Wherein: in the blending combustion process, heavy metals slightly change at the flue inlet according to the increase of the amount of doped sludge, volatile As, Hg, Cd and Zn with lower boiling points in the fuel have the largest volatilization amount in the combustion process, most of the volatile As, Hg, Cd and Zn are gasified in the combustion process, but the volatile As, Hg, Cd and Zn are partially converted into solid state after being cooled by the flue, and are collected in the fly ash together with smoke dust after passing through a smoke purification device, only a small part of the volatile As, Hg, Cd and Zn enters the smoke gas, so the content of the tail end is. Because of high boiling point, the gasified amount of Cr, Cu, Ni and Pb is very small after burning, most of them enter the flue with the flue gas in solid state, most of them are intercepted in the flue gas purification device, so the discharge concentration is also very low. The content of Ni and Pb in the sludge is lower than that of the fire coal, the content of Ni and Pb in the waste gas after the sludge fuel is combusted is slightly lower than that of the incineration fire coal, the content of other heavy metals in the sludge is higher than that of the fire coal when the sludge is doped in a larger amount, and therefore the heavy metals in the waste gas after the sludge fuel is incinerated are slightly higher than that of the incineration fire coal, but the content of the heavy metals in the smoke is not obviously changed compared with the situation without the sludge.
Under the normal working condition of a thermal power plant unit and the normal operation condition of a flue gas purification facility which are supported by a mixed combustion test, and under the mixed combustion test condition, the relationship between the generation of dioxin and the total solid content and the mixed combustion ratio is not obvious, the mixed combustion sludge water content is related, the higher the mixed combustion sludge water content is, the more the intramolecular water content is possibly caused, the complete combustion is not facilitated, the dioxin concentration is slightly increased, but the higher the mixed combustion sludge water content depends on the working condition of the supported project, and the outlet concentration of the mixed combustion sludge water content is more related to the operation conditions of the unit and the flue gas purification facility; under the working condition of a first-stage unit of a thermal power plant and the normal operation condition of a flue gas purification facility, which are relied on by a mixed combustion test, the generation of dioxin and the outlet concentration are lower when sludge is mixed and combusted, and the mixed combustion test is superior to the emission standard of European Union 2000 and is far superior to the local standard of Guangdong province (2000/76/EC).
Claims (4)
1. A method for harmless and resource utilization of printing and dyeing sludge is characterized by comprising the following steps:
the water content of the standby printing and dyeing sludge is 40.1-60%, and the water content of the standby printing and dyeing sludge is as follows: (spare printing and dyeing sludge and coal powder) is less than or equal to 0.1, spare printing and dyeing sludge and coal powder are prepared, the prepared spare printing and dyeing sludge and coal powder are uniformly mixed and dried to prepare powder to obtain fuel, the fuel is sent into a coal powder furnace to be combusted, and dust in smoke is collected;
the pulverized coal furnace is a high-temperature high-pressure natural circulation pulverized coal furnace which is a pulverized coal furnace with a steel framework suspension structure, single furnace chamber open-air arrangement, balanced ventilation, a four-corner tangential combustion mode and solid-state slag discharge;
adding OFA nozzles on the secondary air on the uppermost layer of the pulverized coal furnace and controlling the air volume of the primary air nozzles to be 8% of the total air volume;
the outlet concentration of dioxin in flue gas generated by blending and burning the printing and dyeing sludge is less than 0.035 (I-TEQ) ng-TEQ/m3。
2. The method for harmless and resource utilization of printing and dyeing sludge according to claim 1, characterized in that: the fineness of the fuel R90= 16-19%.
3. The method for harmless and resource utilization of printing and dyeing sludge according to claim 1, characterized in that: rated evaporation capacity of the pulverized coal furnace: 420t/h, rated steam pressure: 9.81MPa, hearth temperature: 1400-1500 ℃, rated steam temperature: 540 ℃, feed water temperature: 215 ℃, boiler thermal efficiency: 91.2%, exhaust gas temperature: the lowest fuel-injection-free stable combustion load is less than or equal to 40 percent at the temperature of 131 ℃.
4. The method for harmless and resource utilization of printing and dyeing sludge according to claim 1, characterized in that:
the manufacturing plant of the pulverized coal furnace is Oriental boiler industry company, and the model is DG 450/9.81-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641689.0A CN109609230B (en) | 2018-12-29 | 2018-12-29 | Harmless and resource utilization method for printing and dyeing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811641689.0A CN109609230B (en) | 2018-12-29 | 2018-12-29 | Harmless and resource utilization method for printing and dyeing sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109609230A CN109609230A (en) | 2019-04-12 |
| CN109609230B true CN109609230B (en) | 2020-08-18 |
Family
ID=66017272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811641689.0A Active CN109609230B (en) | 2018-12-29 | 2018-12-29 | Harmless and resource utilization method for printing and dyeing sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109609230B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139158A (en) * | 2007-08-08 | 2008-03-12 | 绍兴水处理发展有限公司 | Sewage sludge harmlessness disposing technique |
| CN101993181A (en) * | 2010-10-21 | 2011-03-30 | 江苏东源纺织科技实业有限公司 | Method for dehydration and recycling of continuous dyeing sludge |
| CN102140003A (en) * | 2010-02-03 | 2011-08-03 | 北京中矿环保科技股份有限公司 | Sludge drying method, incineration method, sludge incineration device, thermal power plant and system |
| JP2014062155A (en) * | 2012-09-20 | 2014-04-10 | Act Co Ltd | Manufacturing method of dry combustible material, and dry combustible material |
| CN105114944A (en) * | 2015-09-17 | 2015-12-02 | 西安西热锅炉环保工程有限公司 | Air staged-combustion vertical and horizontal combined arrangement type over fire air system for tangential boiler |
| CN108167800A (en) * | 2017-12-25 | 2018-06-15 | 浙江浙能技术研究院有限公司 | A kind of improvement boiler economizer |
-
2018
- 2018-12-29 CN CN201811641689.0A patent/CN109609230B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139158A (en) * | 2007-08-08 | 2008-03-12 | 绍兴水处理发展有限公司 | Sewage sludge harmlessness disposing technique |
| CN102140003A (en) * | 2010-02-03 | 2011-08-03 | 北京中矿环保科技股份有限公司 | Sludge drying method, incineration method, sludge incineration device, thermal power plant and system |
| CN101993181A (en) * | 2010-10-21 | 2011-03-30 | 江苏东源纺织科技实业有限公司 | Method for dehydration and recycling of continuous dyeing sludge |
| JP2014062155A (en) * | 2012-09-20 | 2014-04-10 | Act Co Ltd | Manufacturing method of dry combustible material, and dry combustible material |
| CN105114944A (en) * | 2015-09-17 | 2015-12-02 | 西安西热锅炉环保工程有限公司 | Air staged-combustion vertical and horizontal combined arrangement type over fire air system for tangential boiler |
| CN108167800A (en) * | 2017-12-25 | 2018-06-15 | 浙江浙能技术研究院有限公司 | A kind of improvement boiler economizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109609230A (en) | 2019-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105032884B (en) | Cement rotary kiln collaboration processes house refuse and energy comprehensive utilization system and method | |
| CN105366896A (en) | Device and process for sludge gasification melting circular treatment | |
| CN204544958U (en) | Cement rotary kiln associated treatment house refuse and energy comprehensive utilization system | |
| CN113182313B (en) | Multi-source organic solid waste disposal system and method for recycling pollutants | |
| CN112143525A (en) | Method for producing hydrogen by converting municipal solid waste | |
| WO2019062350A1 (en) | Harmless treatment method and system for domestic sludge | |
| CN108302541A (en) | Refuse pyrolysis gasification comprehensive Treatment process | |
| CN205402733U (en) | Domestic waste and/or industrial waste's processing production line | |
| CN105198182A (en) | Method and device for gas production and electricity generation through sludge | |
| CN107143864A (en) | A kind of technique of full combustion slime circulating fluidized bed boiler burning sludge | |
| CN102173553B (en) | Method for drying and processing sludge by use of cement production waste gas | |
| CN213178357U (en) | Smoke recycling oxygen-enriched incineration sludge and muddy water co-treatment system | |
| CN109609230B (en) | Harmless and resource utilization method for printing and dyeing sludge | |
| CN111059540A (en) | Household garbage incineration power generation process | |
| CN213983590U (en) | Sludge drying and incinerating equipment | |
| CN102140003A (en) | Sludge drying method, incineration method, sludge incineration device, thermal power plant and system | |
| CN210891667U (en) | Domestic waste burns marsh gas utilization equipment of power plant | |
| CN204611788U (en) | A kind of Organic Sludge mixes burning recycling system | |
| CN209940807U (en) | Sludge phase separation heat treatment equipment with heat energy recycling function | |
| CN204084311U (en) | A kind of coal of fan mill powder process and the green electricity generation system of mud multifuel combustion | |
| Zhang et al. | Status quo and resource utilization technology of sludge treatment and disposal | |
| CN104235818B (en) | The coal of fan mill powder process and the green electricity generation system of mud multifuel combustion | |
| CN100364907C (en) | Sludge drying system using combination of smoke residual heat and two external heat supply sources | |
| CN204084312U (en) | The coal of a kind of fan mill and Ball Mill powder process and the green electricity generation system of mud multifuel combustion | |
| CN202808709U (en) | Sludge drying, pyrolysis gasifying and incinerating integrated treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |