CN209338270U - The utilization of resources system of high-salt wastewater after a kind of washing of flying dust - Google Patents
The utilization of resources system of high-salt wastewater after a kind of washing of flying dust Download PDFInfo
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- CN209338270U CN209338270U CN201821967558.7U CN201821967558U CN209338270U CN 209338270 U CN209338270 U CN 209338270U CN 201821967558 U CN201821967558 U CN 201821967558U CN 209338270 U CN209338270 U CN 209338270U
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Abstract
The utility model discloses a kind of utilization of resources systems of high-salt wastewater after washing for flying dust, comprising: for carrying out the decalcification reactor of decalcification stir process to flying dust water lotion；For receiving the intermediate pool from decalcification reactor outflow solution；For receiving the first tubular type microstrainer and the second tubular type microstrainer from intermediate pool outflow solution；For receiving the clear water reserviors from the first tubular type microstrainer and the second tubular type microstrainer outflow solution；Activated carbon adsorption device for receiving to flow out solution from clear water reserviors；MVR feed cistern for receiving to flow out solution from activated carbon adsorption device；And for receiving the inclined-plate clarifying basin that molten counter-flushing liquid is discharged from the first tubular type microstrainer and the second tubular type microstrainer.The utility model utilization of resources system, have the function of except hardness, except suspended solid, except organic matter, adjust pH value, effluent quality is preferable after processing, and long run supply MVR equipment is not using easily causing MVR stop cleaning, and the level of integrated system is high.
Description
Technical field
The utility model relates to the moneys of high-salt wastewater after garbage flying ash processing technology field more particularly to a kind of washing of flying dust
Source utilizes system.
Background technique
Incineration of refuse flyash be in municipal consumer waste incineration disposal process the trapping object of flue gas purification system and flue and
The bottom ash of chimney bottom sedimentation.Containing pollutants such as heavy metal, benzene homologues, dioxin in incineration of refuse flyash, arranged in China
For hazardous waste HW18.
Enter landfill yard after solidification and stabilization, is the flying dust processing mode of international mainstream, refers to and pass through physical-chemical method
Harmful substance is fixed to or is included in one of inertia curing substrate innocent treatment procedure.The purpose is to make the dirt in waste
Dye component is presented chemical inertness or is contained, and keeps it safer during transport is with disposition.Stabilize landfill
Disposal options can occupy a large amount of soil.Under the action of after Closure of landfill site through going through nature, harmful substance, which has, gradually to be discharged
A possibility that.Simultaneously industrialization promotion is significant and gesture exists for the flying dust processing technique and technique for further developing stability and high efficiency
It must go.
Cement kiln synergic processing incineration of refuse flyash is to be added to manufacture of cement pretreated flying dust is passed through as raw material
In the process, instead of part of cement raw material while, the organic pollutants such as the dioxin being enriched in flying dust have been effectively removed, have been realized
The disposal of resources of flying dust.Due to containing a large amount of Cl in flying dust—And heavy metal element, in order to avoid to cement production process
It impacts, it is necessary to which it is pre-processed.Largely studies have shown that the method using water-washing pre-treatment can be effectively removed
Cl in flying dust—, avoid because of Cl-It is excessively high to cause system balling and putty etc..
A kind of utility model garbage flying ash in Beijing Building Materials Science Research Institute Co's washes the circulation benefit of buck
With technique (CN102020388A), which carries out suspended matter separation, removing heavy metals ion, deliming magnesium ion, filtering, machinery pressure
Contracting and multiple-effect evaporation step, the innovative point of technique are the removal of suspended matter, heavy metal ion, calcium ions and magnesium ions, but to cement kiln
The always influence factor of cooperative disposal flying dust --- the removing process of chloride ion does not have further investigated and research.
Shanghai University's utility model a kind of water washing pretreatment method for making fly-ash from incineration harmless (CN1947872A), this method
It is water washing flying dust at normal temperatures and pressures, removes a large amount of leachable anion and part heavy metal ion in flying dust.Fly it
Chlorine ions percent concentration drops to 1% hereinafter, simultaneously part washes out heavy metal in ash, which is directed to specifically
Operating method and operating parameter, but corresponding lectotype selection is not provided, it is still necessary to suitable equipment completing technologies in engineer application
The industrial application of route.
Guo Run Environmental Protection Technology Co., Ltd, BeiJing ZhongKe discloses a kind of washing melded system of incineration of refuse flyash
(CN104843923A), the filtrate (liquid of first-stage centrifugal machine B successively with the first intermediate pool, the first reaction tank, the second reaction tank,
Decalcification transfer tank, the connection of decalcification centrifuge, the cake outlet of decalcification centrifuge are connected to second level filtrate tank, the filter of decalcification centrifuge
Liquid outlet is successively with the second intermediate pool, water stabilization reaction tank, level-one stable regulation pond, two-stage stabilising conditioning tank, filtering
System, PH conditioning tank, stablize pond, MVR evaporator, clear water reserviors connection, alkali liquor storage tank respectively with the first intermediate pool, water stabilization
Reaction tank connection, level-one, two-stage stabilising conditioning tank sludge outlet be connected to respectively with mud reservoir, mud reservoir is by the road with one
Grade filtrate tank connection, the technical essential are to connect retouch in detail with structure with the equipment in softening process for flying dust washing
It states, makes flying dust water-washing process that there is practical operability, but the implementation method of washing dechlorination effect, operating parameter are not said
It is bright.
To sum up, the existing generally existing following problems of flying dust washing process: 1. is excessive using centrifuge, the separation to centrifuge
Ability does not make full use of；2. not considering risk of the addition to solution of flocculant, the addition of organic matter will lead to subsequent MVR points
The purity decline of salt after salt technique；3. filter type is too simple.
Therefore, excessive using centrifuge for existing flying dust washing process, sufficiently benefit no to the separating capacity of centrifuge
With, do not consider risk of the addition to solution of flocculant, the addition of organic matter will lead to the purity that subsequent MVR divides salt after salt technique
The problems such as decline and filter type are too simple, becomes those skilled in the art's technical problem urgently to be resolved.
Utility model content
The utility model is to solve existing flying dust washing process to use centrifuge excessive, is not had to the separating capacity of centrifuge
It makes full use of, consider risk of the addition to solution of flocculant, the addition of organic matter will lead to subsequent MVR and divide salt after salt technique
Purity decline and filter type it is too simple the problems such as, provide flying dust washing after high-salt wastewater utilization of resources system.
To achieve the above object, the utility model uses following technical scheme:
Provide the utilization of resources system of high-salt wastewater after a kind of washing of flying dust, comprising:
For receiving the flying dust water lotion flowed out from flying dust washing liquid pool and carrying out decalcification stirring to the flying dust water lotion
The decalcification reactor of processing；
For receiving the intermediate pool from the decalcification reactor 2 outflow solution；
For receive from the intermediate pool flow out solution and to solution be filtered processing the first tubular type microstrainer and
Second tubular type microstrainer；
For receiving from the first tubular type microstrainer and the second tubular type microstrainer 6 outflow solution and being carried out to solution
The clear water reserviors that pH is adjusted；
For receiving the activated carbon adsorption device for flowing out solution from the clear water reserviors and carrying out granular absorption processing to solution；
For receiving the MVR feed cistern from activated carbon adsorption device outflow solution；And
For receiving from the first tubular type microstrainer and the second tubular type microstrainer outflow counter-flushing liquid and to counter-flushing liquid
The inclined-plate clarifying basin being separated by solid-liquid separation.
It further, further include the pre- stirring pool of lye being connect with the decalcification reactor, the pre- stirring pool of lye is used
In being stirred alkali solid in advance with solvent, and lye will be obtained after stirring and flows into the decalcification reactor.
Further, the lye in the pre- stirring pool of the lye is discharged into the decalcification by certain flow by metering pump
In reactor.
Further, the bottom of the decalcification reactor is equipped with discharge outlet, and the solution in the decalcification reactor passes through institute
It states discharge outlet and flows into the intermediate pool.
Further, solution by chemical centrifugal pump is discharged into the first tubular type microstrainer and second in the intermediate pool
Tubular type microstrainer.
Further, the clear water reserviors are connect by pipeline with acid solution tank, and acid solution is arranged by metering pump in the acid solution tank
Enter the clear water reserviors.
Further, the blender for preventing suspended particulate substance to be deposited on bottom of pond is equipped in the intermediate pool.
Further, the lye in the pre- stirring pool of the lye is sodium carbonate liquor.
Further, the clear water reserviors are connect simultaneously by pipeline with the first tubular type microstrainer and the second tubular type microstrainer
The first tubular type microstrainer and the second tubular type microstrainer are backwashed.
The utility model by adopting the above technical scheme, compared with prior art, has the following technical effect that
The utilization of resources system of high-salt wastewater after flying dust washing provided by the utility model, has except hardness, except suspension is solid
Body, except organic matter, adjust the effect of pH value, effluent quality is preferable after processing, and long run supply MVR equipment is not using easily causing
MVR stop cleaning, and level of integrated system height, high degree of automation, tubular type microstrainer automation charging and flushing, pH are adjusted certainly
Dynamic feedback, activated carbon adsorption are automatically switched.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utilization of resources system of high-salt wastewater after the utility model flying dust is washed；
Wherein, each appended drawing reference are as follows:
1- flying dust washes liquid pool, 2- decalcification reactor, the pre- stirring pool of 3- lye, 4- intermediate pool, 5- the first tubular type micro-filtration
Device, 6- the second tubular type microstrainer, 7- clear water reserviors, 8- activated carbon adsorption device, 9-MVR feed cistern, 10- inclined-plate clarifying basin, 11- acid
Flow container.
Specific embodiment
The utility model is described in more detail below by specific embodiment, for a better understanding of this reality
With novel, but following embodiments are not intended to limit the scope of the utility model.
Embodiment 1
As shown in Figure 1, present embodiments providing the utilization of resources system of high-salt wastewater after a kind of washing of flying dust, comprising:
For receiving the flying dust water lotion flowed out from flying dust washing liquid pool 1 and carrying out decalcification stir process to flying dust water lotion
Decalcification reactor 2；
For receiving the intermediate pool 4 for flowing out solution from decalcification reactor 2；
For receiving the first tubular type microstrainer 5 and for flowing out solution from intermediate pool 4 and being filtered processing to solution
Two tubular type microstrainers 6；
For receiving from the first tubular type microstrainer 5 and the second tubular type microstrainer 6 outflow solution and carrying out pH adjusting to solution
Clear water reserviors 7；
For receiving to flow out solution from clear water reserviors 7 and carrying out the activated carbon adsorption device 8 of granular absorption processing to solution；
MVR feed cistern 9 for receiving to flow out solution from activated carbon adsorption device 8；And
For receive from the first tubular type microstrainer 5 and the second tubular type microstrainer 6 outflow counter-flushing liquid and to counter-flushing liquid into
The inclined-plate clarifying basin 10 that row is separated by solid-liquid separation.
The one aspect of the present embodiment, as shown in Figure 1, further including the alkali for being stirred alkali solid and solvent in advance
The pre- stirring pool 3 of liquid, the pre- stirring pool 3 of lye obtain lye after stirring and flow into decalcification reactor 2.
The one aspect of the present embodiment, as shown in Figure 1, the lye in the pre- stirring pool 3 of lye presses a constant current by metering pump
Amount is discharged into decalcification reactor 2.
The one aspect of the present embodiment, as shown in Figure 1, the bottom of decalcification reactor 2 is equipped with discharge outlet, decalcification reactor 2
Interior solution flows into intermediate pool 4 by discharge outlet.
The one aspect of the present embodiment, as shown in Figure 1, solution by chemical centrifugal pump is discharged into the first pipe in intermediate pool 4
Decline filter 5 and the second tubular type microstrainer 6, and the first tubular type microstrainer 5 and the second tubular type microstrainer 6 may filter that in water 5 μm or more
The particle of diameter.
The one aspect of the present embodiment, as shown in Figure 1, clear water reserviors 7 are connect by pipeline with acid solution tank 11, in acid solution tank 11
Acid solution is discharged into clear water reserviors 7 by metering pump, the technical hydrochloric acid that the solution in acid solution tank 7 is 31%.
The one aspect of the present embodiment, as shown in Figure 1, being equipped in intermediate pool 4 prevents suspended particulate substance to be deposited on bottom of pond
Blender.
The one aspect of the present embodiment, as shown in Figure 1, the lye in the pre- stirring pool 3 of lye is sodium carbonate liquor.
The one aspect of the present embodiment, as shown in Figure 1, clear water reserviors 7 pass through pipeline and the first tubular type microstrainer 5 and the
Two tubular type microstrainers 6 are connected and are backwashed to the first tubular type microstrainer 5 and the second tubular type microstrainer 6.
Embodiment 2
The present embodiment provides a kind of flying dust washing according to the utilization of resources system of high-salt wastewater after above-mentioned flying dust washing
The resource utilization method of high-salt wastewater afterwards, comprising the following steps:
Step 1: the lye that flying dust is washed in flying dust water lotion and the pre- stirring pool 3 of lye in liquid pool 1 flows into decalcification reaction
Device 2；
Step 2: solution after 2 decalcification stir process of decalcification reactor, passes through the row set on 2 bottom of decalcification reactor
The mouth of a river is discharged into intermediate pool 4；
Step 3: the solution in intermediate pool 4 is discharged into the first tubular type microstrainer 5 by chemical centrifugal pump and the second tubular type is micro-
Filter 6；
Step 4: solution is discharged into clear water reserviors 7 by water pump by the first tubular type microstrainer 5 and the second tubular type microstrainer 6；
Step 5: clear water reserviors 7 are connect by pipeline with acid solution tank 11, the acid solution in acid solution tank 11 is discharged into clearly by metering pump
Pond 7, to adjust the pH value of solution in clear water reserviors 7；
Step 6: the part solution in clear water reserviors 7 is by water pump to the first tubular type microstrainer 5 and the second tubular type microstrainer 6
It is backwashed, counter-flushing liquid is discharged into inclined-plate clarifying basin by water pump by the first tubular type microstrainer 5 and the second tubular type microstrainer 6
10, while remaining solution in clear water reserviors 7 is discharged into activated carbon adsorption device 8 by Ordinary Centrifugal Pumps；
Step 7: solution is discharged into MVR feed cistern by water pump after the processing of the granular absorption of activated carbon adsorption device 8
9。
The one aspect of the present embodiment, in step 5, the pH value for adjusting solution in clear water reserviors 7 is 7-9.
The one aspect of the present embodiment, 6 alternate run work of the first tubular type microstrainer 5 and the second tubular type microstrainer in step 6
Make.
The utility model embodiment provides number of the flying dust water by each ion concentration in water before and after the utility model technique
According to contrast table, wherein the treating capacity of water is 0.5t/h, and the dosage of lye is 6.7kg/h, and the acid solution dosage that pH is adjusted is
4.1kg/h is measured each ion concentration in water before and after technique using potentiometric titrimeter, and table 1 is flying dust water without this
Each ion concentration and pH value table before utility model decalcification technique, table 2 are flying dust water each after the utility model decalcification technique
Ion concentration and pH value table.
Table 1
Table 2
It should be clear from by the comparative analysis of data in Tables 1 and 2, using flying after the process of the utility model
Various ion concentration declines significant effect in buck, and pH value control is between 7-9.
The utility model is excessive using centrifuge for existing flying dust washing process, does not fill to the separating capacity of centrifuge
It point utilizes, consider risk of the addition to solution of flocculant, the addition of organic matter will lead to subsequent MVR and divide salt after salt technique
The problems such as purity decline and too simple filter type, the utility model utilization of resources system have except hardness, except suspension is solid
Body, except organic matter, adjust pH value effect, effluent quality is preferable after processing, can with long run supply MVR equipment use and be not easy
MVR stop cleaning is caused, so that MVR continuous use duration can reach 3 months；Device integration in simultaneity factor is high, automatic
Change degree is high, and the automation of tubular type microstrainer feeds and rinses, pH adjusts automatic feedback, activated carbon adsorption is automatically switched.
The specific embodiment of the utilization of resources system of high-salt wastewater after the washing of the utility model flying dust has been carried out in detail above
Thin description, but it is merely an example, and the utility model is not restricted to particular embodiments described above.For this field skill
For art personnel, the equivalent modifications and substitution that any pair of the utility model carries out are also all among the scope of the utility model.Cause
This, made equal transformation and modification under the spirit and scope for not departing from the utility model should all be covered in the utility model
In the range of.
Claims (7)
1. the utilization of resources system of high-salt wastewater after a kind of flying dust washing characterized by comprising
For receiving the flying dust water lotion flowed out from flying dust washing liquid pool (1) and carrying out decalcification stirring place to the flying dust water lotion
The decalcification reactor (2) of reason；
For receiving the intermediate pool (4) from the decalcification reactor (2) outflow solution；
For receiving the first tubular type microstrainer (5) for flowing out solution from the intermediate pool (4) and being filtered processing to solution
With the second tubular type microstrainer (6)；
For receiving from the first tubular type microstrainer (5) and the second tubular type microstrainer (6) outflow solution and carrying out pH to solution
The clear water reserviors (7) of adjusting；
For receiving the activated carbon adsorption device for flowing out solution from the clear water reserviors (7) and carrying out granular absorption processing to solution
(8)；
For receiving the MVR feed cistern (9) from the activated carbon adsorption device (8) outflow solution；And
For receiving from the first tubular type microstrainer (5) and the second tubular type microstrainer (6) discharge counter-flushing liquid and to backwash
The inclined-plate clarifying basin (10) that liquid is separated by solid-liquid separation.
2. the utilization of resources system of high-salt wastewater after flying dust according to claim 1 washing, which is characterized in that further include with
The pre- stirring pool of lye (3) of the decalcification reactor (2) connection, the pre- stirring pool of lye (3) be used for by alkali solid with it is molten
Agent is stirred in advance, and will be obtained lye after stirring and flowed into the decalcification reactor (2).
3. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 2, which is characterized in that the lye
Lye in pre- stirring pool (3) is discharged into the decalcification reactor (2) by metering pump by certain flow.
4. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the centre
Pond (4) interior solution is discharged into the first tubular type microstrainer (5) and the second tubular type microstrainer (6) by chemical centrifugal pump.
5. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the clear water
Pond (7) is connect by pipeline with acid solution tank (11), and the interior acid solution of the acid solution tank (11) is discharged into the clear water reserviors by metering pump
(7)。
6. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the centre
The blender for preventing suspended particulate substance to be deposited on bottom of pond is equipped in pond (4).
7. the utilization of resources system of high-salt wastewater after flying dust washing according to claim 1, which is characterized in that the clear water
Pond (7) is connect and micro- to first tubular type by pipeline with the first tubular type microstrainer (5) and the second tubular type microstrainer (6)
Filter (5) and the second tubular type microstrainer (6) are backwashed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821967558.7U CN209338270U (en) | 2018-11-27 | 2018-11-27 | The utilization of resources system of high-salt wastewater after a kind of washing of flying dust |
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| CN201821967558.7U CN209338270U (en) | 2018-11-27 | 2018-11-27 | The utilization of resources system of high-salt wastewater after a kind of washing of flying dust |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368867A (en) * | 2018-11-27 | 2019-02-22 | 上海电气集团股份有限公司 | The utilization of resources system and method for high-salt wastewater after a kind of washing of flying dust |
| CN112390443A (en) * | 2020-10-30 | 2021-02-23 | 安徽海螺川崎工程有限公司 | Purification method of fly ash water washing liquid |
| CN112390442A (en) * | 2020-10-30 | 2021-02-23 | 安徽海螺川崎工程有限公司 | Fly ash washing liquid purification system |
-
2018
- 2018-11-27 CN CN201821967558.7U patent/CN209338270U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368867A (en) * | 2018-11-27 | 2019-02-22 | 上海电气集团股份有限公司 | The utilization of resources system and method for high-salt wastewater after a kind of washing of flying dust |
| CN112390443A (en) * | 2020-10-30 | 2021-02-23 | 安徽海螺川崎工程有限公司 | Purification method of fly ash water washing liquid |
| CN112390442A (en) * | 2020-10-30 | 2021-02-23 | 安徽海螺川崎工程有限公司 | Fly ash washing liquid purification system |
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