CN209333513U - A kind of flying dust multistage dechlorination system - Google Patents

A kind of flying dust multistage dechlorination system Download PDF

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CN209333513U
CN209333513U CN201821967560.4U CN201821967560U CN209333513U CN 209333513 U CN209333513 U CN 209333513U CN 201821967560 U CN201821967560 U CN 201821967560U CN 209333513 U CN209333513 U CN 209333513U
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flying dust
tank
level
water
gravitational settling
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孙军
王隽哲
徐嘉俊
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Shanghai Electric Group Corp
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Shanghai Electric Group Corp
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Abstract

The utility model discloses a kind of flying dust multistage dechlorination systems, including flying dust feed bin, one-stage water wash tank, gravitational settling unit, second level water washing tank, level-one decanter centrifuge and flocculation separator, wherein: one-stage water wash tank is connect with flying dust feed bin and gravitational settling unit respectively, for the flying dust raw material in flying dust feed bin to be mixed into mud mixture and carries out one-stage water wash to the mud mixture;Second level water washing tank is connect with gravitational settling unit and level-one decanter centrifuge respectively, for carrying out secondary washing to the solid phase after the separation of gravity sedimentation unit;Level-one decanter centrifuge connects one-stage water wash tank;And flocculation separator is connect with gravitational settling unit.The utility model flying dust multistage dechlorination system, can effectively improve the removal efficiency of chlorine element in flying dust, so that flying dust is reached the requirement that cement kiln synergic processing carries out resource utilization, and the removal effect of brackish water is good in aqueous flying dust after washing.

Description

A kind of flying dust multistage dechlorination system
Technical field
The utility model category field of environment engineering technology is related to a kind of innoxious pretreatment system of flying dust more particularly to one Kind flying dust multistage dechlorination 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 through physics- One of inertia curing substrate innocent treatment procedure is fixed or be included in harmful substance by chemical method.The purpose is to make to give up Pollution components in object are presented chemical inertness or are contained, and keep it safer during transport is with disposition.
The disposal options for stabilizing landfill can occupy a large amount of soil.Through going through the effect of nature after Closure of landfill site Under, harmful substance has a possibility that gradually discharging.It further develops the flying dust processing technique of stability and high efficiency and technique and produces Industry dissemination is great and imperative.
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-and heavy metal element in flying dust, in order to avoid to manufacture of cement work Skill impacts, it is necessary to pre-process to it.Largely studies have shown that the method using water-washing pre-treatment can effectively be gone Except the Cl-in flying dust, avoid causing system balling and putty etc. because Cl- is excessively high.
It is winged that Beijing Building Materials Science Research Institute Co Patent No. CN102020388A discloses a kind of rubbish Ash washes the utilization process of buck, which carries out suspended matter separation, removing heavy metals ion, deliming magnesium ion, filtering, machinery Compression and multiple-effect evaporation step.The technique is pre- by heavy metal ion using vulcanization sodium salt solution-precipitating-filtering method is added The a large amount of calcium ions and magnesium ions sediment for first removing, and then precipitating can be used as cement raw material, effectively improve resource benefit With rate and reduce integrated treatment cost;High concentration saline sewage is handled through multiple-effect evaporation, realizes that water resource recycles, together When byproduct villaumite can be used for other industrial uses;It is harmonious using mechanical compression and multiple-effect evaporation technology, energy consumption is only that tradition is steamed The 1/4 of hair.
Shanghai University Patent No. CN1947872A discloses a kind of water washing pretreatment method for making fly-ash from incineration harmless, we Method 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.Make it Chlorine ions percent concentration drops to 1% hereinafter, simultaneously part washes out heavy metal in flying dust.Washes uses carbonization-flocculation Heavy metal concentration in washes and ss are down to discharge standard or less by agent technique.Stabilizing fly ash is harmless after washing, provides for flying dust Sourceization provides possibility;Elution waste water reaches the national standard of industrial discharge by process.
It is winged that Guo Run Environmental Protection Technology Co., Ltd, BeiJing ZhongKe Patent No. CN104843923A discloses a kind of waste incineration The washing melded system of ash, the filtrate (liquid of first-stage centrifugal machine B are successively reacted with the first intermediate pool, the first reaction tank, second Pond, decalcification transfer tank, the connection of decalcification centrifuge, the cake outlet of decalcification centrifuge are connected to second level filtrate tank, decalcification centrifuge Filtrate (liquid successively with the second intermediate pool, water stabilization reaction tank, level-one stable regulation pond, two-stage stabilising conditioning tank, mistake Filter system, PH conditioning tank, stablize pond, MVR evaporator, clear water reserviors connection, alkali liquor storage tank respectively with the first intermediate pool, water Matter stablize reaction tank connection, level-one, two-stage stabilising conditioning tank sludge outlet be connected to respectively with mud reservoir, mud reservoir is through pipe Road is connected to level-one filtrate tank, and solves the problems, such as that chlorinity is excessively high in mud cake, and two parts sludge takes the side handled respectively Formula will not deposit and block pipeline, stable and reliable for performance, high treating effect, stable effluent quality.
But in above-mentioned technological achievement, what garbage flying ash disclosed in patent CN102020388A washed buck recycles work Skill, the innovative point of technique are the removal of suspended matter, heavy metal ion, calcium ions and magnesium ions, to cement kiln synergic processing flying dust Always influence factor --- the removing process of chloride ion does not have further investigated and research, not to the disposing technique of the waste water after dechlorination It proposes a plan;Water washing pretreatment method for making fly-ash from incineration harmless disclosed in patent CN1947872A is directed to specific operation side Method and operating parameter do not provide corresponding lectotype selection, and it is still necessary to the productions of suitable equipment completing technology route in engineer application Industry application does not provide reasonable plan to the processing of flying dust water lotion after washing;And rubbish disclosed in patent CN104843923A The technical essential of the washing melded system of rubbish flying ash is connected with the equipment in softening process and structure for flying dust washing It is described in detail, makes flying dust water-washing process that there is practical operability, not to the implementation method of washing dechlorination effect, operation Parameter is illustrated, and a large amount of calcium constituent is contained in flying dust, and verified, water demineralization process added amount of chemical is big in this scheme, Cost of disposal is high.
Utility model content
Technical problem to be solved in the utility model is in view of the drawbacks of the prior art, to provide a kind of flying dust multistage dechlorination System.
The utility model uses following technical scheme to solve above-mentioned technical problem:
The utility model provides a kind of flying dust multistage dechlorination system, including flying dust feed bin, one-stage water wash tank, gravitational settling Unit, second level water washing tank, level-one decanter centrifuge and flocculation separator, in which:
The one-stage water wash tank is connect with the flying dust feed bin and the gravitational settling unit respectively, is used for the flying dust Flying dust raw material in feed bin is mixed into mud mixture and carries out one-stage water wash to the mud mixture, the muddy water mixing after washing Object enters the gravitational settling unit and is separated by solid-liquid separation;
The second level water washing tank is connect with the gravitational settling unit and the level-one decanter centrifuge respectively, for institute Solid phase after stating the separation of gravitational settling unit carries out secondary washing, and the mud mixture after secondary washing enters the sleeping spiral shell of the level-one Centrifuge is separated by solid-liquid separation;The level-one decanter centrifuge connects the one-stage water wash tank, the one-stage water wash tank with water come The liquid phase separated from after second level water washing tank washing;And
The flocculation separator is connect with the gravitational settling unit, for that will receive the gravitational settling unit separation Solid phase afterwards, and flocculated to the solid phase, separating treatment.
Further, in the flying dust multistage dechlorination system, further include;
For storing the first surge tank of the liquid phase after the level-one decanter centrifuge separates, first surge tank passes through Pipeline is separately connected the level-one decanter centrifuge and the one-stage water wash tank.
Further, in the flying dust multistage dechlorination system, further includes:
For supplementing the second surge tank of water scouring water for the second level water washing tank, the second surge tank connection is industrial Water system.
Further, in the flying dust multistage dechlorination system, the gravitational settling unit is inclined-plate clarifying basin or puts down Sedimentation tank.
Further, in the flying dust multistage dechlorination system, the flocculation separator includes:
The flocculation basin being connect with the gravitational settling unit, the liquid after being used to receive the gravitational settling unit separation Phase, and flocculated to the liquid phase, coagulation, the liquid phase after coagulation enters water treatment system;With
The second level horizontal centrifuge being connect with the flocculation basin, the solid phase after being used to receive coagulation, and to the solid phase into Row is separated by solid-liquid separation, and the liquid phase after separation enters water treatment system, and the solid phase after separation enters solid phase drying system.
It is further preferred that in the flying dust multistage dechlorination system, the flocculation separator further include:
For providing PAC dosing storehouse and PAM dosing storehouse, PAC dosing storehouse and the PAM dosing of medicament for the flocculation basin Storehouse is separately connected the flocculation basin.
Further, in the flying dust multistage dechlorination system, further includes:
For providing the additive tank of medicament for the one-stage water wash tank, the additive tank connects the one-stage water wash Tank.
Further, in the flying dust multistage dechlorination system, the flying dust raw material is the generation of grate furnace burning process By-product.
Further, in the flying dust multistage dechlorination system, between the flying dust feed bin and the one-stage water wash tank Using pneumatic conveying mode.
The utility model is had the following technical effect that compared with prior art using above technical scheme
(1) the flying dust multistage dechlorination system, can effectively improve the removal efficiency of chlorine element in flying dust, flying dust is enable to reach The requirement of cement kiln synergic processing progress resource utilization;
(2) secondary washing is used, the removal effect of brackish water is good in aqueous flying dust after washing, villaumite in treated flying dust Removal efficiency >=90%;
(3) mud-water separation is carried out using gravitational settling unit and decanter centrifuge, energy consumption is lower than existing case and puts down in the industry It is horizontal;
(4) by the synergistic combination of Alternative, a large amount of calcium constituents contained in removal flying dust have been effectively removed, and in water quality Dosage is small in softening process, and processing cost is low;
(5) liquid phase after second level is washed can be used for one-stage water wash water water, realize the recycling and reusing of water resource, Zero-emission is reached, system operation cost and operation risk is reduced, generates certain economic benefit.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of flying dust multistage dechlorination system of the utility model;
Fig. 2 is the relation schematic diagram of chlorine ion concentration in different washing times and waste water;
Fig. 3 is the relation schematic diagram of remaining chloride ion content in different washing ratios and waste water;
Fig. 4 is the relation schematic diagram of remaining chloride ion content in different mixings time and waste water;
Fig. 5 is the relation schematic diagram of remaining chloride ion content in different sedimentation times and waste water;
Fig. 6 is using the utility model flying dust multistage dechlorination and the flying dust Electronic Speculum of water lotion decalcification softening process before and after the processing Scan schematic diagram.
Specific embodiment
The technical solution of the utility model is described in further detail with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1, present embodiments providing a kind of flying dust multistage dechlorination system, including flying dust feed bin 1, one-stage water wash tank 3, gravitational settling unit 4, second level water washing tank 5, level-one decanter centrifuge 6 and flocculation separator, in which:
The one-stage water wash tank 3 is connect with the flying dust feed bin 1 and the gravitational settling unit 4 respectively, and being used for will be described Flying dust raw material in flying dust feed bin 1 is mixed into mud mixture and carries out one-stage water wash to the mud mixture, the mud after washing Aqueous mixtures enter the gravitational settling unit 4 and are separated by solid-liquid separation;
The second level water washing tank 5 is connect with the gravitational settling unit 4 and the level-one decanter centrifuge 6 respectively, is used for Secondary washing is carried out to the solid phase after the gravitational settling unit 4 separation, the mud mixture after secondary washing enters described one Grade decanter centrifuge 6 is separated by solid-liquid separation;The level-one decanter centrifuge 6 connects the one-stage water wash tank 3, the one-stage water wash The liquid phase that tank 3 is separated after the second level water washing tank 5 washing with water;And
The flocculation separator is connect with the gravitational settling unit 4, is divided for that will receive the gravitational settling unit 4 Solid phase from after, and flocculated to the solid phase, separating treatment.
In the present embodiment, as shown in Figure 1, the flying dust multistage dechlorination system further includes;For storing the sleeping spiral shell of the level-one First surge tank 7 of the liquid phase after the separation of centrifuge 6, first surge tank 7 are separately connected the sleeping spiral shell of the level-one by pipeline Centrifuge 6 and the one-stage water wash tank 3.
In the present embodiment, as shown in Figure 1, the flying dust multistage dechlorination system further include: for being the second level water washing tank 5 The second surge tank 8 of water scouring water is supplemented, second surge tank 8 connects industrial water system 15.
In the present embodiment, mud-water separation unit includes gravitational settling equipment and mechanical separation equipment two parts:
Water lotion gravity settling separation: sedimentation be using in water suspended particulate can settling property, under the effect of gravity Precipitating is generated, to reach a kind of process of separation of solid and liquid;Separation object is generally 10 μm of precipitable objects of solid of partial size >;Flying dust grain Diameter is less than 300 μm, and most of solid can realize separation of solid and liquid by way of precipitating after washing, and which is compared to common mechanical point From the advantage with energy saving, the moisture content of solid phase is 50% or so after gravity settling separation.Specifically, gravitational settling list Member 4 uses inclined-plate clarifying basin or horizontal sedimentation tank, preferably inclined-plate clarifying basin, and pond body plane is rectangle;Inclined-plate clarifying basin Pond type is rectangle, and waste water is flowed into from the one end in pond, and horizontal direction flows through pond, is flowed out from the other end in pond;There are many Chi Zhongshe Inclined plate increases effect of settling and simultaneously reduces occupied area since " shallow pool theory " increases the surface loading of sedimentation basin, pond into The bottom Kou Chu sets storage bucket, and other position bottom of pond have the gradient, tendency storage bucket, and inclined-plate clarifying basin has impact load and temperature The advantages of adaptability of variation is stronger, construction is simple, low cost.
Water lotion it is mechanically decoupled: for the liquid phase effluent after sedimentation, wherein still there is more suspension lime-ash, because of draining The requirement of water quality, it is necessary to which depth separation is carried out to solid-liquid.Mechanically decoupled mechanically decoupled mode suitable for this engineering is needed at this time For Horizontal helical type centrifuge, level-one decanter centrifuge 6 and second level horizontal centrifuge 9 are Horizontal helical type centrifuge;Such centrifugation owner It is used for the dehydration of aqueous flying dust, it can be by 50% solid phase of moisture content processing to 30-40%.Specific type selecting need to consider to take up an area, and purchase It is set to this and operating cost, disposition scale etc.;The device that centrifuge is separated the biggish solid of density and liquid using centrifugal force. Generally made using the big L/D ratio horizontal spiral discharge sedimentation centrifuge (abbreviation big L/D ratio horizontal screw machine) of totally-enclosed continuous operation For the host of slurry dewatering, it has the advantages that other type dehydration equipments are not had: 1, flocculant, cleaning water consumption are few, Day-to-day operation is low in cost;2, device layout is compact, and occupied area is small, can obviously reduce expropriation of land and capital expenditure.But centrifuge Since running speed is fast, there is certain requirement to energy consumption.
In the present embodiment, as shown in Figure 1, the flocculation separator includes: to connect with the gravitational settling unit 4 Flocculation basin 14, be used to receive the liquid phase after the gravitational settling unit 4 separates, and flocculated to the liquid phase, coagulation, mix Liquid phase after solidifying enters water treatment system 11;Second level horizontal centrifuge 9 with connecting with the flocculation basin 14, is used to receive mixed Solid phase after solidifying, and the solid phase be separated by solid-liquid separation, the liquid phase after separation enters water treatment system 11, consolidating after separation Mutually enter solid phase drying system 10.It preferably, further include for providing 12 He of PAC dosing storehouse of medicament for the flocculation basin 14 PAM dosing storehouse 13, PAC dosing storehouse 12 and PAM dosing storehouse 13 are separately connected the flocculation basin 14.
In the present embodiment, as shown in Figure 1, the flying dust multistage dechlorination system further include: for being the one-stage water wash tank 3 The additive tank 2 of medicament is provided, the additive tank 2 connects the one-stage water wash tank 3.
In addition, the flying dust raw material that the flying dust multistage dechlorination system of the present embodiment is applicable in is the generation of grate furnace burning process By-product.And pneumatic conveying mode is used between the flying dust feed bin 1 and the one-stage water wash tank 3.
Embodiment 2
This implementation provides the flying dust washing process verification experimental verification method based on flying dust multistage dechlorination system described in embodiment 1, Test is derived from certain municipal solid waste incinerator near Shandong Zibo with flying dust.
Test method for washing: at room temperature, 100g flying dust is weighed in beaker according to the weight g of different washing ratio ashes: The volume ml of water is (2-12): 1 is added tap water, stirs certain time, and precipitating after a certain period of time pours out supernatant, measures water The content of chlorine in washing lotion;Then it is repeatedly washed with the tap water of same volume, step is the same.
1) washing times
Test condition: using washing ratio 4:1, and washing temperature is 20 DEG C, mixing time 10min, and the sedimentation time is 10min, as a result as shown in Figure 2, it is seen then that although the removal effect of more pairs of chlorine of washing times is better, chloride ion exists in flying dust Removing amount is maximum during first wash.It is preceding in the washing leaching process of chloride ion in flying dust to be washed twice to chlorine in flying dust Leaching content has reached 90% or more.Comprehensively consider energy conservation and environmental protection and water washing effect, water washing operations are recommended to select 2 times under room temperature.
2) ratio is washed
Test condition: choosing different washing ratios and wash twice to flying dust at 25 DEG C of room temperature, mixing time 10min, precipitating The remaining chlorinity of flying dust is as shown in Figure 3 after time is 30min.Since the washing water used is big to container in industrialized production Small, water consumption, the factors such as cost of water treatment are affected, although showing that the washing ratio effect of 8:1 is preferable by pilot plant test (remaining chlorinity 0.9%).But in conjunction with previous karyotype studies, removal efficiency, economic consideration, still recommend 3:1 liquid solid ratio Example is washed.
3) mixing time
Test condition: washing ratio 8:1, washing times 2, sedimentation time 30min, as a result as shown in Figure 4.It can be with from figure Find out, mixing time is little to water-washing pre-treatment influential effect, and it is unknown to the removing of entire chlorinity that stirring is further added by after 10min It is aobvious.Comprehensively consider energy consumption and efficiency.The mixing time of 10min is preferably to select.
4) sedimentation time
Test condition: washing ratio 8:1, washing times 2, mixing time 10min, as a result See Figure 5.Trend can from figure , sedimentation time optimal selection should be 10min, and chlorinity is minimum in flying dust at this time.
To sum up, the optimised process combination of flying dust washing are as follows: 3:1 washes ratio, is washed using two-stage, washing stirring 10min, Precipitate 10min.The technological parameter can provide industry amplification reference, and actual operational parameters can be adjusted for engineering equipment.
Embodiment 3
Using flying dust multistage dechlorination system described in embodiment 1, using the process combination washed according to flying dust are as follows: 3:1 water Ratio is washed, is washed using two-stage, washing stirring 10min precipitates 10min.Dechlorination is carried out to the raw material of three kinds of various concentrations respectively With water lotion decalcification sofening treatment, total chlorine (Cl in flying dust raw material-1) it is respectively 2490mg/kg, wash dechlorination effect such as following table Shown in 1.
Embodiment 4
Using flying dust multistage dechlorination system described in embodiment 1, using the process combination washed according to flying dust are as follows: 3:1 water Ratio is washed, is washed using two-stage, washing stirring 10min precipitates 10min.Dechlorination is carried out to the raw material of three kinds of various concentrations respectively With water lotion decalcification sofening treatment, total chlorine (Cl in flying dust raw material-1) it is respectively 30621mg/kg, washing dechlorination effect is as follows Shown in table 1, flying dust electron-microscope scanning before and after the processing is as shown in Fig. 6.
Embodiment 5
Using flying dust multistage dechlorination system described in embodiment 1, using the process combination washed according to flying dust are as follows: 3:1 water Ratio is washed, is washed using two-stage, washing stirring 10min precipitates 10min.Dechlorination is carried out to the raw material of three kinds of various concentrations respectively With water lotion decalcification sofening treatment, total chlorine (Cl in flying dust raw material-1) it is respectively 43814mg/kg, washing dechlorination effect is as follows Shown in table 1.
The washing dechlorination effect of the different chlorinity flying dust samples of table 1
By above-mentioned table 1 it is found that can be had using the flying dust multistage dechlorination of the present invention and water lotion decalcification melded system and technique Effect improves the removal efficiency of chlorine element in flying dust, so that flying dust is reached cement kiln synergic processing and carries out wanting for resource utilization It asks;Using secondary washing, the removal effect of brackish water is good in aqueous flying dust after washing, and villaumite removal efficiency in treated flying dust >= 90%.
Specific embodiment of the utility model is described in detail above, but it is only used as example, the utility model It is not restricted to particular embodiments described above.To those skilled in the art, any that this practical is equal Modifications and substitutions are also all among the scope of the utility model.Therefore, the institute under the spirit and scope for not departing from the utility model The equal transformation and modification of work, should all cover in the scope of the utility model.

Claims (9)

1. a kind of flying dust multistage dechlorination system, which is characterized in that including flying dust feed bin (1), one-stage water wash tank (3), gravitational settling Unit (4), second level water washing tank (5), level-one decanter centrifuge (6) and flocculation separator, in which:
The one-stage water wash tank (3) connect with the flying dust feed bin (1) and the gravitational settling unit (4) respectively, is used for institute It states the flying dust raw material in flying dust feed bin (1) to be mixed into mud mixture and carry out one-stage water wash to the mud mixture, after washing Mud mixture enter the gravitational settling unit (4) be separated by solid-liquid separation;
The second level water washing tank (5) connect with the gravitational settling unit (4) and the level-one decanter centrifuge (6) respectively, uses In carrying out secondary washing to the solid phase after the gravitational settling unit (4) separation, the mud mixture after secondary washing enters institute Level-one decanter centrifuge (6) is stated to be separated by solid-liquid separation;The level-one decanter centrifuge (6) connects the one-stage water wash tank (3), institute State the liquid phase that one-stage water wash tank (3) is separated after the second level water washing tank (5) washing with water;And
The flocculation separator is connect with the gravitational settling unit (4), for that will receive the gravitational settling unit (4) point Solid phase from after, and flocculated to the solid phase, separating treatment.
2. flying dust multistage dechlorination system according to claim 1, which is characterized in that further include;
For storing the first surge tank (7) of the liquid phase after the level-one decanter centrifuge (6) separates, first surge tank (7) the level-one decanter centrifuge (6) and the one-stage water wash tank (3) are separately connected by pipeline.
3. flying dust multistage dechlorination system according to claim 1, which is characterized in that further include:
For supplementing the second surge tank (14) of water scouring water for the second level water washing tank (5), second surge tank (14) is even Connect industrial water system (15).
4. flying dust multistage dechlorination system according to claim 1, which is characterized in that the gravitational settling unit (4) is oblique Plate sedimentation basin or horizontal sedimentation tank.
5. flying dust multistage dechlorination system according to claim 1, which is characterized in that the flocculation separator includes:
The flocculation basin (8) being connect with the gravitational settling unit (4), after being used to receive gravitational settling unit (4) separation Liquid phase, and flocculated to the liquid phase, coagulation, the liquid phase after coagulation enters water treatment system (11);With
The second level horizontal centrifuge (9) being connect with the flocculation basin (8), the solid phase after being used to receive coagulation, and to the solid phase Be separated by solid-liquid separation, the liquid phase after separation enters water treatment system (11), and the solid phase after separation enters solid phase drying system (10)。
6. flying dust multistage dechlorination system according to claim 5, which is characterized in that the flocculation separator further include:
For providing the PAC dosing storehouse (12) and PAM dosing storehouse (13) of medicament, PAC dosing storehouse for the flocculation basin (8) (12) and PAM dosing storehouse (13) is separately connected the flocculation basin (8).
7. flying dust multistage dechlorination system according to claim 1, which is characterized in that further include:
For providing the additive tank (2) of medicament for the one-stage water wash tank (3), the additive tank (2) connects the level-one Water washing tank (3).
8. flying dust multistage dechlorination system according to claim 1, which is characterized in that the flying dust raw material is grate furnace burning The by-product that technique generates.
9. flying dust multistage dechlorination system according to claim 1, which is characterized in that the flying dust feed bin (1) and described one Pneumatic conveying mode is used between grade water washing tank (3).
CN201821967560.4U 2018-11-27 2018-11-27 A kind of flying dust multistage dechlorination system Active CN209333513U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111530162A (en) * 2020-04-22 2020-08-14 宁波龙育机械设备有限公司 Continuous batch fly ash washing method
CN112745022A (en) * 2021-01-27 2021-05-04 重庆新离子环境科技有限公司 System and method for eluting household garbage incineration fly ash with water
CN114716165A (en) * 2022-04-29 2022-07-08 中洁蓝环保科技有限公司 Fly ash multistage water washing integrated system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111530162A (en) * 2020-04-22 2020-08-14 宁波龙育机械设备有限公司 Continuous batch fly ash washing method
CN112745022A (en) * 2021-01-27 2021-05-04 重庆新离子环境科技有限公司 System and method for eluting household garbage incineration fly ash with water
CN114716165A (en) * 2022-04-29 2022-07-08 中洁蓝环保科技有限公司 Fly ash multistage water washing integrated system and method

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