CN206428098U - A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit - Google Patents
A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit Download PDFInfo
- Publication number
- CN206428098U CN206428098U CN201621454844.4U CN201621454844U CN206428098U CN 206428098 U CN206428098 U CN 206428098U CN 201621454844 U CN201621454844 U CN 201621454844U CN 206428098 U CN206428098 U CN 206428098U
- Authority
- CN
- China
- Prior art keywords
- pond
- soon
- stir
- desulfurization wastewater
- curing agent
- 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
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses a kind of desulfurization sludge deep dehydration and heavy metals immobilization collaboration processing unit, including the preliminary sedimentation tank being sequentially connected, pond is stirred soon, slowly pond is stirred, adjust tank and dehydration equipment, the preliminary sedimentation tank is used to precipitate the gypsum and large granular impurity in desulfurization wastewater, the supernatant layer of the sedimentation basin is connected with the pond of stirring soon, the pond of stirring soon is connected with HAS type curing agent tanks, it is described to stir pond soon and slow stir is provided with rabbling mechanism in pond, the pond of stirring soon is used to quickly stir the mixture of HAS types curing agent and desulfurization wastewater, it is described slow to stir pond and mixed slowly for mixture, the regulation tank, which is used to the desulfurization wastewater after concentrating and precipitating is adjusted, makes its moisture content be 95%~96%, the dehydration equipment is used to carry out dewater treatment to the desulfurization wastewater of moisture content after regulation 95%~96%.The utility model technique is simple, and cost is relatively low, will not produce other harm；Moreover, disposal ability is big, treatment effect is obvious.
Description
Technical field
The utility model is specifically related to a kind of desulfurization sludge deep dehydration and heavy metals immobilization collaboration processing unit.
Background technology
With the industrialized fast development of China, the demand to electric power increasingly increases, the national thermoelectricity installation by 2014
9.2 hundred million kilowatts of capacity, increases by 5.9% on a year-on-year basis, and generated energy accounts for national generating total amount 80%, and thermoelectricity is quickly grown and still predominantly
Position.The development of thermoelectricity caused the data statistics that flue gas desulfurization project is constantly newly-built, is announced according to Chinese Ministry of Environmental Protection, by 2012, added up
The flue gas desulphurization unit total capacity about 6.8 hundred million that put into operation kW, accounts for the 90% of national active service coal unit capacity, 2011,
The thermal power plant totally 1828 of emphasis survey scope is included, totally 3379 sets of desulfurization equipment is installed.Power plants flue gas desulfurization
Prevailing technology be wet desulphurization, substantial amounts of flue gas desulphurization sludge certainly will be produced, and its yield also will be with desulfurization project construction
It is continuously increased, carries out the extremely urgent for Journal of Sex Research of desulfurization sludge.
Sludge modification dehydration can greatly reduce the volume of sludge, and reduction management, transport, processing cost are easy to follow-up de-
The recycling of sewage sludge.For at present, " conditioning+mechanical dehydration " is the mode that practicable is compared in sludge modification dehydration.
Conditioner+mechanical dehydration can improve the dewatering of sludge, make sludge reduction, while improving sludge shale, use machinery
Shale meets the requirement of sanitary landfills after dehydration.Current common sludge dewaterer has belt filter press, plate and frame filter press, spiral to take off
Water dispenser etc., the moisture content of sludge is 75~85% after mechanical dehydration, and adjustment space is little, it is seen then that the core of " conditioning+mechanical dehydration "
The heart is the selection of Opsonizing method, conditioner, and by changing the type and dosage of conditioner, changes dewatering performance of sludge.Mesh
The preceding dewatering process for not yet occurring developing for desulfurization sludge, existing process is also to use for reference domestic sludge and desilting sludge dewatering work
Skill.Also there is part heavy metal in desulfurization sludge, its potential hazard is larger.Though existing method has its saving grace, also deposit
Adding that amount of reagent is big, reagent type is complicated, malleable sludge quality, the problems such as consume energy higher.
Utility model content
The purpose of this utility model is that providing a kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperates with processing unit,
Its technique is simple, and cost is relatively low, and the artificial medicament kind that adds is few, and adds material and will not produce other harm；Moreover, processing
Ability is big, and treatment effect substantially, is not limited by regional condition, is suitable for large-scale engineering applications.
The utility model solves the technical scheme that its technical problem used：
A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit, and the device is first heavy including what is be sequentially connected
Pond, pond is stirred soon, pond, regulation tank and dehydration equipment is stirred slowly, the preliminary sedimentation tank be used for enter the moisture content in it for 90%~
Gypsum and large granular impurity in 97% desulfurization wastewater are precipitated, and the supernatant layer of the sedimentation basin stirs pond company soon with described
Logical, the pond of stirring soon be connected with a HAS type curing agent tanks, described to stir pond soon rabbling mechanism is provided with pond with stirring slowly, described
Stirring pond soon is used to the mixture of HAS types curing agent and desulfurization wastewater quickly stir to make it quickly mix, described to stir pond slowly
For the mixture after quick stirring mix slowly make it well mixed after natural concentrating and precipitating, the regulation tank uses
Desulfurization wastewater after to concentrating and precipitating, which is adjusted, makes its moisture content be 95%~96%, and the dehydration equipment is used for regulation
The desulfurization wastewater of moisture content 95%~96% carries out dewater treatment afterwards.
By above-mentioned technical proposal, described stir soon between pond and HAS type curing agent tanks is provided with flow measuring unit, so that HAS types are solid
Agent is at the uniform velocity added to and stirred soon in pond.
The utility model, has the advantages that：
1st, the utility model technique is simple, and desiccation power consumption is low under normal temperature, and one-time investment cost is small；
2nd, the HAS type soil-solidified-agents used in the utility model belong to a kind of inorganic non-metallic gelling based on industrial residue
Material, property is stable, environment-friendly, will not produce other harm, there is good solidification effect to sandstone and soil, and with biography
System cement solidification is compared, and 100% can be improved with age firming body intensity, while meet the requirement that changing waste into resources is utilized, this reality
The easily scattered property with coagulating soon of soil-solidified-agent itself is made full use of with new, improves sludge settling property, while being risen to sludge
Desiccation and chemically stable effect；
3rd, present invention process object is mainly inorganic matter, and key is that shale is modified, i.e., before mechanical dewatering equipment is entered
The conditioning of shale is completed, therefore sets to stir soon respectively and pond and stirs pond slowly, quick stirring is used and mixes slowly the mode of combination, one
Aspect realizes that curing agent and the quick of sludge are sufficiently mixed, and on the other hand provides certain reaction time, it is ensured that enter mechanical dehydration
The waste water dewatering of equipment is excellent, is easy to deep dehydration, and is accompanied by the process of self-compaction in solidification, promotes soil
The Hirschfeld-Klinger reaction in curing agent later stage；
4th, the utility model is solidified heavy metal while the deep dehydration of desulfurization sludge is realized, day processing energy
Power is big, is adapted to large-scale engineering applications.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structural representation of the utility model embodiment.
In figure：1- preliminary sedimentation tanks, 2- stir pond, 3- and stir pond, 4- regulations tank, 5- dehydration equipments slowly soon.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this
Utility model, is not used to limit the utility model.
In preferred embodiment of the present utility model, as shown in figure 1, a kind of desulfurization sludge deep dehydration and heavy metals immobilization
Cooperate with processing unit, including be sequentially connected preliminary sedimentation tank 1, stir pond 2 soon, slow stir pond 3, regulation tank 4 and dehydration equipment 5, preliminary sedimentation tank 1
For to enter its in moisture content for 90%~97% desulfurization wastewater in gypsum and large granular impurity carry out preliminary sedimentation,
The supernatant layer of sedimentation basin 1 is connected with stirring pond 2 soon, and pond 2 is stirred soon and is connected with a HAS type curing agent tanks, and pond 2 is stirred soon and pond 3 is stirred slowly
Rabbling mechanism is inside provided with, pond 2 is stirred soon to be used to the mixture of HAS types curing agent and desulfurization wastewater quickly stir to make it
Quick mixing, pond 3 is stirred slowly to be used to the mixture after quick stirring mix slowly to make to concentrate naturally after it is well mixed
Precipitation, regulation tank 4, which is used to the desulfurization wastewater after concentrating and precipitating is adjusted, makes its moisture content be 95%~96%, dehydration equipment
5 are used to carry out dewater treatment to the desulfurization wastewater of moisture content after regulation 95%~96%.
In preferred embodiment of the present utility model, it is provided with as shown in figure 1, stirring soon between pond and HAS type curing agent tanks
Flow measuring unit, so that HAS type curing agent is at the uniform velocity added to and stirred soon in pond.
Accordingly, the utility model also provides a kind of desulfurization sludge deep dehydration and heavy metals immobilization based on said apparatus
Cooperative processing method, comprises the following steps：
S1, moisture content be 90%~97% desulfurization wastewater after preliminary sedimentation tank precipitates gypsum and large granular impurity, its upper strata
Clear liquid enters stirs pond soon, by HAS type curing agent tanks to stirring in pond addition HAS type curing agent, the addition of HAS type curing agent soon
For 10%~30% of solids content in desulfurization wastewater, start the rabbling mechanism stirred soon in pond and quickly stirred, quickly stirred
Speed be 400~450rpm/min, time be 15~20min, the desulfurization wastewater after quick stirring carry out it is slow stirs pond carry out it is slow
Speed stirring, the speed mixed slowly be 200~250rpm/min, time be 25~30min；
S2, the desulfurization wastewater after the processing of HAS types curing agent enter regulation tank, are entered by regulation tank control desulfurization wastewater
Input concentration during mechanical dewatering equipment is 95%~96%, and excessive concentration or the too low mechanical dewatering equipment that is unfavorable for are transported
OK；
S3, the mud cake after mechanical dehydration stack 3~5d naturally in bield.
In preferred embodiment of the present utility model, desulfurization wastewater is the waste water that produces after means of flue gas desulfurization of power plant.
In preferred embodiment of the present utility model, HAS type curing agent is a kind of slag cementitious material, and it is by slag and ore deposit
Slag composition is body material, is equipped with appropriate gypsum, masterbatch as activator, combined grinding is made, wherein body material
Mass ratio is more than 80%.HAS type soil-solidified-agents are a kind of inorganic nonmetal gelled materials based on industrial residue, in normal temperature
Under can effectively solidify sandstone and soil (including mud stone fragment, sandy soil, silt, clay, mud, municipal refuse, flyash, work
Industry waste residue, industrial tailings), with the good characteristic that need not be rinsed and screening can be solidified, in powdered.
The utility model mainly includes three below step：
A, take moisture content to be 90%~97% desulfurization wastewater, add HAS type curing agent, during the addition of curing agent is waste water
The 10%~30% of solids content, whipping process, which is divided into, quickly to be stirred and mixes slowly, quick mixing speed be 400~
450rpm/min, a length of 15~20min during stirring, mix slowly speed for 200~250rpm/min, a length of 25 during stirring~
30min, whipping process uses conventional whisk；
When desulfurization wastewater after B, stirring enters dehydration equipment, it is 95%~96% to control input concentration；
C, in bield 3~5d is stacked naturally, place is stacked naturally should be more spacious, during which avoids rainwater from directly rushing for a long time
Brush.
Three embodiments are exemplified below the utility model is further described.
Embodiment 1：
(1) deal with objects：Desulfurization wastewater comes from Guangzhou heating power Co., Ltd, and yellowish, moisture content is 94.5%,
The heavy metals exceeding standards such as mercury, zinc, cadmium, nickel, chromium；
(2) processing procedure：The 30% addition HAS type curing agent per treatment according to solids content in desulfurization wastewater, then
Start mixer, canned HAS types curing agent is at the uniform velocity added in quick stirring pool through flow measuring unit, mixing time 15 minutes, desulfurization
Waste water through it is too fast stir pond after enter it is slow stir pond, the sludge after processing is finally placed in the natural heap in spacious area by mixing time 30 minutes
Put 3 days, during which avoid rain drop erosion；
(3) treatment effect：Naturally sludge color changes after stacking 3 days, tends to drabon color；Desulfurization sludge moisture content is passed through
Halogen moisture teller is detected as 47.3%, and leaching concentration is satisfied by relevant criterion requirement after exceeded heavy metal processing.
Embodiment 2
(1) deal with objects：Desulfurization wastewater come from Nanjing company, yellowish, moisture content is 93.5%, wherein arsenic,
Nickel, chromium heavy metals exceeding standard；
(2) processing procedure：The 20% addition HAS type curing agent per treatment according to solids content in desulfurization wastewater, then
Start mixer, canned HAS types curing agent is at the uniform velocity added in quick stirring pool through flow measuring unit, mixing time 10 minutes, desulfurization
Waste water through it is too fast stir pond after enter and slowly stir pond, sludge after processing is finally placed in spacious area and stacks 3 naturally by mixing time 25 minutes
My god, during which avoid rain drop erosion；
(3) treatment effect：Naturally sludge color changes after stacking 3 days, tends to drabon color；Desulfurization sludge moisture content is passed through
Halogen moisture teller is detected as 45.8%, wherein leaching concentration is satisfied by relevant criterion requirement after the processing of exceeded heavy metal.
Embodiment 3
(1) deal with objects：Desulfurization wastewater comes from power plant of Wuhan City, and color is yellowish-brown, and moisture content is 97.3%, wherein
Mercury, nickel, chromium heavy metals exceeding standard；
(2) processing procedure：The 30% addition HAS type curing agent per treatment according to solids content in desulfurization wastewater, then
Start mixer, canned HAS types curing agent is at the uniform velocity added in quick stirring pool through flow measuring unit, mixing time 20 minutes, desulfurization
Waste water through it is too fast stir pond after enter and mix slowly pond, sludge after processing is finally placed in spacious area natural by mixing time 30 minutes
Stack 3 days, during which avoid rain drop erosion；
(3) treatment effect：Naturally sludge color changes after stacking 3 days, tends to drabon color；Desulfurization sludge moisture content is passed through
Halogen moisture teller is detected as 49.6%, wherein leaching concentration is satisfied by relevant criterion requirement after the processing of exceeded heavy metal.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the utility model appended claims.
Claims (2)
1. a kind of desulfurization sludge deep dehydration and heavy metals immobilization collaboration processing unit, it is characterised in that the device is included successively
The preliminary sedimentation tank of connection, pond being stirred soon, pond, regulation tank and dehydration equipment is stirred slowly, the preliminary sedimentation tank is used for entering the moisture content in it
Precipitated for the gypsum and large granular impurity in 90%~97% desulfurization wastewater, the supernatant layer of the sedimentation basin with it is described
Pond connection is stirred soon, and the pond of stirring soon be connected with a HAS type curing agent tanks, it is described to stir pond soon mixer is provided with pond with stirring slowly
Structure, the pond of stirring soon is used to the mixture of HAS types curing agent and desulfurization wastewater quickly stir to make it quickly mix, described
It is slow stir pond be used to the mixture after quick stirring mix slowly make it well mixed after natural concentrating and precipitating, the tune
Section tank, which is used to the desulfurization wastewater after concentrating and precipitating is adjusted, makes its moisture content be 95%~96%, and the dehydration equipment is used for
Dewater treatment is carried out to the desulfurization wastewater of moisture content after regulation 95%~96%.
2. device according to claim 1, it is characterised in that described stir soon is provided between pond and HAS type curing agent tanks
Flow measuring unit, so that HAS type curing agent is at the uniform velocity added to and stirred soon in pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621454844.4U CN206428098U (en) | 2016-12-28 | 2016-12-28 | A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621454844.4U CN206428098U (en) | 2016-12-28 | 2016-12-28 | A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206428098U true CN206428098U (en) | 2017-08-22 |
Family
ID=59584378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621454844.4U Active CN206428098U (en) | 2016-12-28 | 2016-12-28 | A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206428098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517599A (en) * | 2016-12-28 | 2017-03-22 | 武汉凯迪电力环保有限公司 | Device and method for desulfurized sludge deep dehydration and heavy metal curing coordinated treatment |
| CN110423059A (en) * | 2019-08-30 | 2019-11-08 | 郑州恒博环境科技股份有限公司 | A kind of thermal insulation material containing desulfurization sludge and its preparation |
-
2016
- 2016-12-28 CN CN201621454844.4U patent/CN206428098U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517599A (en) * | 2016-12-28 | 2017-03-22 | 武汉凯迪电力环保有限公司 | Device and method for desulfurized sludge deep dehydration and heavy metal curing coordinated treatment |
| CN110423059A (en) * | 2019-08-30 | 2019-11-08 | 郑州恒博环境科技股份有限公司 | A kind of thermal insulation material containing desulfurization sludge and its preparation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3624960B1 (en) | Method for removing organic and inorganic harmful substances from waste by means of wet mechanical separation | |
| CN105130141A (en) | Continuous harmless treatment method and system for silt slurry | |
| CN107721270B (en) | Method for preparing non-sintered water permeable brick by using municipal sludge | |
| CN101182144A (en) | Cement kiln calcining resource method for domestic waste burning fly ash | |
| CN101786787A (en) | Sludge dewatering integrated process | |
| CN106830252A (en) | The unified water treating apparatus of function are precipitated with ballasted flocculation | |
| CN104326634B (en) | A kind of compound sludge treatment technique | |
| CN105110506A (en) | Acid mine drainage/refuse incineration fly ash coupled stabilization treatment method | |
| CN104973995A (en) | Phosphate fertilizer taking waste as main raw material and preparation method of phosphate fertilizer | |
| CN104129900A (en) | Method for preparing covering soil for refuse landfill from raw sludge | |
| CN206428098U (en) | A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit | |
| CN104496139A (en) | Pretreatment method of heavy metal sludge | |
| CN102718378A (en) | Method of cement kiln co-processing for calcium-added and passivated town sludge | |
| CN111875232A (en) | Integrated treatment method for quickly separating mud and water from building waste slurry and solidifying filter mud | |
| CN205473290U (en) | A comprehensive control system for urban lake pollution silt | |
| CN106277858B (en) | River lake gush polluted bed mud processing receive micron be modified binder materials | |
| CN105293822B (en) | Coal chemical industry sewage disposal fundamental technology | |
| CN104876515A (en) | Aluminum base gelling and curing agent, preparation method and application thereof | |
| CN206680234U (en) | Unified water treating apparatus with ballasted flocculation precipitation function | |
| CN103936256B (en) | A kind of method of mud and mud mixing mummification under normal temperature | |
| CN101734776B (en) | Method for processing and utilizing wastewater and waste material in steel production and processing system thereof | |
| CN103304114A (en) | Curing/stabilizing method for sludge from urban sewage treatment plant | |
| CN111499156A (en) | Application of river channel solid waste in planting soil | |
| CN103224335A (en) | Sludge wet-processing technology and equipment | |
| CN103803686A (en) | Sewage treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |