CN206535396U - A kind of system for reducing incineration of refuse flyash yield - Google Patents

A kind of system for reducing incineration of refuse flyash yield Download PDF

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Publication number
CN206535396U
CN206535396U CN201720190739.2U CN201720190739U CN206535396U CN 206535396 U CN206535396 U CN 206535396U CN 201720190739 U CN201720190739 U CN 201720190739U CN 206535396 U CN206535396 U CN 206535396U
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CN
China
Prior art keywords
flying dust
reaction tower
entrance
incineration
refuse flyash
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Active
Application number
CN201720190739.2U
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Chinese (zh)
Inventor
曾贤琼
孟回
刘明刚
蒋大春
刘思明
雷钦平
孙勇
李自明
李文旭
马成龙
孙应淳
董文明
黄利
王飞
耿祥波
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Chongqing Sanfeng Environment Group Co., Ltd.
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CHONGQING SANFENG ENVIRONMENTAL INDUSTRY GROUP CO LTD
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Priority to CN201720190739.2U priority Critical patent/CN206535396U/en
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Abstract

The utility model discloses a kind of system for reducing incineration of refuse flyash yield, belong to field of Environment Protection, including reaction tower, sack cleaner, flying dust storehouse, centrifugal blower, material envelope pump, reaction tower is provided with entrance;The ash bucket discharging opening of sack cleaner is connected with the ash charge mouthful in flying dust storehouse, and its air outlet is connected with the arrival end of centrifugal blower;The import of material envelope pump is connected with the ash hole in flying dust storehouse, and its strength entrance is connected with the port of export of centrifugal blower, and its outlet is connected with entrance.The utility model seals pump by fly ash carry to reaction tower using material, and the flying dust under sack cleaner is returned to the flue gas purification system repeatedly recycled in flue gas purification system, the consumption of lime and activated carbon can be effectively saved, the purpose for reducing flying dust yield is reached;The problem of flying dust is blocked is solved as Geldart-D particle source of the gas from the high-temperature flue gas of waste incineration line simultaneously, and does not increase exhaust gas volumn, fume emission index is better than existing semidry method and dry FGD process technology.

Description

A kind of system for reducing incineration of refuse flyash yield
Technical field
The utility model belongs to field of Environment Protection, is related to waste incineration and generating electricity technology, and in particular to one kind reduces waste incineration The system of dry method and purification of flue gases by semidry process system flying dust yield.
Background technology
Incineration of refuse flyash is listed in due to pollutants such as enriching heavy metal Yu bioxin in National Hazard waste register Hazardous waste is, it is necessary to which safe disposal, the disposal options that the flying dust of garbage burning factory is generally used now are to send dangerous landfill yard or plus chela Sanitary garbage is sent to fill out field after mixture and the stable processing of cement solidification are qualified, flying dust yield is big, and landfill needs soil, and this can be caused The waste of land resource.Also the mode without ripe recycling at this stage, at the same safe disposal incineration of refuse flyash into This is also at a relatively high, is a no small cost for the operation of garbage burning factory.If controlling the generation of flying dust from source Amount, will reduce the operation cost for disposing flying dust and causes because of the soil brought of flying dust landfill pressure in short supply.And waste incineration Factory's flying dust yield is exactly to spray into generation and complete reaction stone after substantial amounts of lime and activated carbon from flue gas purification system Ash and activated carbon.And existing dry method and semidry process flue gases purification are very low to the utilization rate of lime and activated carbon, Great waste is caused, while producing a large amount of flying dusts needs processing.Existing semidry process technology how is improved, improves de- The middle mixture and activated carbon and utilization rate of acid reaction, are numerous refuse-burning plant urgent problems.For this problem, open Hair is a kind of to recycle flying dust (unreacted lime and activated carbon) method and system.To reduce the consumption of lime and activated carbon Consumption, reduces the yield of flying dust, reduces operating cost, is very important while improving standard limit of smog release.
Patent content
In view of this, the purpose of this utility model is to provide a kind of system for reducing incineration of refuse flyash yield.
The utility model is achieved through the following technical solutions:
A kind of method and system for reduction incineration of refuse flyash yield that the utility model is provided, including reaction tower, cloth Bag dust collector, flying dust storehouse, in addition to centrifugal blower, material envelope pump, wherein, the tower body of reaction tower is provided with entrance;Bag-type dust The ash bucket discharging opening of device is connected with the ash charge mouthful in flying dust storehouse, and its air outlet is connected with the arrival end of centrifugal blower;Material seals entering for pump Mouth is connected with the ash hole in flying dust storehouse, and its strength entrance is connected with the port of export of centrifugal blower, and it is exported and described entrance Connection.
Further, hand operated gate valve, rotation are sequentially installed with from flying dust flow direction between the flying dust storehouse and material envelope pump Feed valve, impact flow meter.
Further, in addition to it is arranged on reaction tower upper inside wall surrounding and the pipeline connected with entrance, the pipeline It is set up in parallel multiple spray guns of central injection in oriented reaction tower.
Further, in addition to the entrance port before and after reaction tower on flue is arranged in, the entrance port is sealed with the material The outlet of pump.
Further, connected superfine pulverizer is installed between sack cleaner and the flying dust storehouse.
Further, in addition to cyclone, its inlet portion is connected with the ash hole of reaction tower, and its export department includes overfall With sediment mouthful, the overfall is connected with the lime white mouthful of reaction tower.
Advantageous effects of the present utility model have:The utility model extremely reacts fly ash carry by using material envelope pump Tower, and the flying dust under sack cleaner is returned to the flue gas purification system repeatedly recycled in gas cleaning, can be effective The consumption of lime and activated carbon is saved, the purpose for reducing flying dust yield is reached;Simultaneously from the height of incineration treatment of garbage line Warm flue gas solves the problem of flying dust is blocked as Geldart-D particle source of the gas, and does not increase exhaust gas volumn, saves the energy, makes fume emission Index is better than existing dry method and purification of flue gases by semidry process technology, achieves interim effect.
Other advantages of the present utility model, target and feature will be explained in the following description to a certain extent State, and to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, or Person can be instructed from practice of the present utility model.Target of the present utility model and other advantages can be said by following Bright book is realized and obtained.
Brief description of the drawings
In order that the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with accompanying drawing to this practicality It is new to be described in further detail, wherein:
Fig. 1 is structural representation of the present utility model;
Reference:1- reaction towers, 2- sack cleaners, 3- flying dusts storehouse, 4- centrifugal blowers, 5- material envelope pump, 6- cyclones, 7- hand operated gate valves, 8- rotatory feeder valves, 9- impact flow meters, 10- connected superfine pulverizers.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail;It should be appreciated that it is preferred that real Example is applied only for explanation the utility model, rather than in order to limit protection domain of the present utility model.
Explanation is needed, lime slurry is contacted in reaction tower with high-temperature flue gas, and lime slurry by liquid by being changed into The process of solid-state.As lime slurry particle is dried, the process that sour gas and lime in flue gas chemically react is by gas Liquid reaction is changed into gas-solid reaction process, and gas-solid reaction speed will be much slower than gas liquid reaction speed.Sour gas in flue gas and The product of lime reaction is gathered in lime particle surface, causes the lime inside particle fully to contact hair with sour gas Raw reaction.Due to the limitation in sour gas and lime reaction speed and reaction time, to ensure deacidification effect, in deacidification The lime of excessive addition is needed, this part lime enters flying dust together with reaction product.One purpose of flying dust recycling is just It is to recycle the lime and activated carbon in flying dust, reduces the consumption of new fresh lime and activated carbon, meanwhile, reduce the production of flying dust Raw amount.Containing elements such as substantial amounts of Si, Ca, Al, Mg in flying dust, in certain temperature range, flying dust meets water and calcium hydroxide is anti- Silicic acid or alumina silicate volcanic ash (CaO-SiO2-Al2O3-H2O) mixture should be generated, with caking property and specific surface area compared with Greatly.Especially silicon will accelerate the utilization rate for absorbing and providing lime of acidic materials.
As shown in figure 1, a kind of system for reduction incineration of refuse flyash yield that the present embodiment is provided, its gas cleaning system The flying dust of system be exactly under reaction tower and sack cleaner ash bucket under bottom ash, both measure ratio be probably 2:8.The system It is made up of reaction tower 1, sack cleaner 2, flying dust storehouse 3, centrifugal blower 4, material envelope pump 5, cyclone 6, wherein, the top of reaction tower 1 There is air inlet and lime white mouthful, bottom to have air outlet, have entrance on tower body for portion, and the air inlet of reaction tower 1 passes through cigarette Feed channel (not marking) is connected with the flue gas of incineration treatment of garbage line, and its air outlet is removed by flue (not marking) with cloth bag The air inlet connection of dirt device 2;The ash charge mouthful that the ash bucket discharging opening of sack cleaner 2 passes through scrapper conveyor (not shown) and flying dust storehouse 3 Connection, its air outlet is connected by airduct (unmarked) with the arrival end of centrifugal blower 4;The import of material envelope pump 5 and flying dust storehouse 3 Ash hole is connected, and its strength entrance is connected with the port of export of centrifugal blower 4, and its outlet is connected with the entrance of reaction tower 1;Eddy flow The inlet portion of device 6 is connected with the ash hole of reaction tower 1, and its export department includes overfall and sediment mouthful, overfall by pump with The lime white mouthful connection of reaction tower 1, so, lime slurry can be flowed out into progress in reaction tower 1 half from the overfall of cyclone 6 Dry process reaction, reaction tower now can be spray tower, be recycled with the recycling using the flying dust in reaction tower 1 out, and Sediment mouthful output flying dust slurry carries out next link processing;Centrifugal blower 4 is resistant to elevated temperatures Multi-stage centrifugal fan;Cyclone 6 is Tapered cyclone.The flying dust that the system is produced enters flying dust with the flying dust that whole factory produces after repeatedly recycling and consolidated together Change system carries out stabilization processes;Leaching after the stabilized processing of flying dust is delivered to house refuse health and filled out after the assay was approved A landfill disposal is buried, otherwise enters danger wastes landfill yard and carries out landfill disposal.The utility model is repeatedly reclaimed by flying dust The flue gases purification utilized, can effectively save the consumption of lime and activated carbon, reduce the yield of flying dust;And use strength Mode of movement, it conveys the afterbody high-temperature flue gas that source of the gas selects incineration treatment of garbage line to produce so that waste incineration cleaning system In flying dust process recycling, in the case where providing power for fly ash carry will not introduce external air source causes at gas cleaning The increase of reason amount;It fume emission index is better than existing purification of flue gases by semidry process technology, achieve interim effect Really.
In the present embodiment, hand operated gate valve is sequentially installed with from flying dust flow direction between the flying dust storehouse 3 and material envelope pump 4 7th, rotatory feeder valve 8, impact flow meter 9.So, fly ash carry is rotated to reaction tower 1, and by adjusting using material envelope pump 4 The electric machine frequency of feed valve 8, to change flying dust recycling internal circulating load;And impact flow meter can accurately show back the flying dust amount of spray.
In the present embodiment, connected superfine pulverizer 10 is installed between the sack cleaner 2 and flying dust storehouse 3.So, by super Fine powder grinding machine can will accumulate in the product grinding on lime particle surface so that the inside of lime particle is more discharged, So as in flying dust recycling cyclic process, there are more lime to participate in fully contacting with sour gas reacting, stone is improved Grey utilization rate.
In the present embodiment, in addition to the pipeline for being arranged in the upper inside wall surrounding of reaction tower 1 and being connected with entrance (is not drawn Go out), multiple spray gun (not shown)s of central injection in oriented reaction tower 1 are set up in parallel on the pipeline.So, it can be sparged into anti- The flying dust in tower is answered to disperse, preferably with the sufficient haptoreaction of flue gas.Certainly in various embodiments, can also be in reaction Entrance port is configured with flue before and after tower 1, the entrance port seals the outlet of pump 5 with the material.
In the present embodiment, multiple vibrator (not shown)s are installed on the barrel in the flying dust storehouse 3.So, stopping flying When ash returns spray, flying dust storehouse can be beaten by the vibrator, flying dust is not assembled on the inwall in flying dust storehouse and is influenceed flying dust storehouse Volume.
The utility model realizes the flow for reducing incineration of refuse flyash yield using above-mentioned system, is specially:First, The flying dust in sack cleaner 2 is collected using flying dust storehouse 3;Then, the high temperature after sack cleaner 2 is guided using centrifugal blower 4 Flue gas;Then, the Geldart-D particle source for sealing pump 5 as material using described high-temperature flue gas is conveyed to the flying dust collected out And heating;Finally, the flying dust after heating is returned and be sprayed onto in reaction tower 1.The method is applied to semidry method and dry process is equal Can.
As preferred, also it is ground using 10 pairs of flying dusts entered by flying dust storehouse in envelope material pump 5 of connected superfine pulverizer. The method is applied to semidry method and dry process.
As preferred, the flying dust in reaction tower 1 also is collected using cyclone 6, and the flying dust is met in cyclone 6 It is flow to after water generation lime slurry in reaction tower 1.The method is applicable to semidry process.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, it is clear that this area Technical staff can to the utility model carry out it is various change and modification without departing from spirit and scope of the present utility model.This Sample, if these modifications and variations of the present utility model belong to the utility model claim and its equivalent technologies scope it Interior, then the utility model is also intended to comprising including these changes and modification.

Claims (6)

1. a kind of system for reducing incineration of refuse flyash yield, including reaction tower (1), sack cleaner (2), flying dust storehouse (3), Characterized in that, also include centrifugal blower (4), material envelope pump (5), wherein, the tower body of reaction tower is provided with entrance;Bag-type dust The ash bucket discharging opening of device is connected with the ash charge mouthful in flying dust storehouse, and its air outlet is connected with the arrival end of centrifugal blower;Material seals entering for pump Mouth is connected with the ash hole in flying dust storehouse, and its strength entrance is connected with the port of export of centrifugal blower, and it is exported and described entrance Connection.
2. a kind of system for reducing incineration of refuse flyash yield according to claim 1, it is characterised in that the flying dust Between storehouse and material envelope pump hand operated gate valve (7), rotatory feeder valve (8), impact flow meter are sequentially installed with from flying dust flow direction (9)。
3. a kind of system for reducing incineration of refuse flyash yield according to claim 1, it is characterised in that also including cloth Put and be set up in parallel on reaction tower (1) upper inside wall surrounding and the pipeline that is connected with entrance, the pipeline in oriented reaction tower Multiple spray guns of central injection.
4. a kind of system for reducing incineration of refuse flyash yield according to claim 1, it is characterised in that also including cloth Put in the entrance port before and after reaction tower (1) on flue, the entrance port seals the outlet of pump (5) with the material.
5. a kind of system of reduction incineration of refuse flyash yield according to claim any one of 1-4, it is characterised in that Connected superfine pulverizer (10) is installed between the sack cleaner (2) and flying dust storehouse (3).
6. a kind of system for reducing incineration of refuse flyash yield according to claim 5, it is characterised in that also including rotation Device (6) is flowed, its inlet portion is connected with the ash hole of reaction tower (1), its export department includes overfall and sediment mouthful, the overflow Mouth is connected with the lime white mouthful of reaction tower.
CN201720190739.2U 2017-02-28 2017-02-28 A kind of system for reducing incineration of refuse flyash yield Active CN206535396U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720190739.2U CN206535396U (en) 2017-02-28 2017-02-28 A kind of system for reducing incineration of refuse flyash yield

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Application Number Priority Date Filing Date Title
CN201720190739.2U CN206535396U (en) 2017-02-28 2017-02-28 A kind of system for reducing incineration of refuse flyash yield

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109908741A (en) * 2019-03-21 2019-06-21 上海环保工程成套有限公司 Inhibit to burn dioxin generating device and its application method in flue gas

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109908741A (en) * 2019-03-21 2019-06-21 上海环保工程成套有限公司 Inhibit to burn dioxin generating device and its application method in flue gas

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Address after: 400084 No. 3 Jianqiao Avenue, Jianqiao Industrial Park, Chongqing

Patentee after: Chongqing Sanfeng Environment Group Co., Ltd.

Address before: 400084 No. 3 Jianqiao Avenue, Jianqiao Industrial Park, Chongqing

Patentee before: Chongqing Sanfeng Environmental Industry Group Co.,Ltd.

CP01 Change in the name or title of a patent holder