CN209612626U - The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process - Google Patents
The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process Download PDFInfo
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- CN209612626U CN209612626U CN201822216233.1U CN201822216233U CN209612626U CN 209612626 U CN209612626 U CN 209612626U CN 201822216233 U CN201822216233 U CN 201822216233U CN 209612626 U CN209612626 U CN 209612626U
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- calcium hydroxide
- waste incineration
- accurate measurement
- consumer waste
- ash cellar
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Abstract
The utility model discloses a kind of calcium hydroxide accurate measurement feeding systems of consumer waste incineration dry FGD process, comprising: niter ash cellar, at least two dosing mechanisms, at least two feeding mechanisms, ash cellar weighing device, safety protection component and fluidizer；Wherein, calcium hydroxide orlop portion is respectively equipped at least two taper lower hoppers, and each taper lower hopper bottom is all provided with a feed opening, and the feed opening of each taper lower hopper bottom is sequentially connected a dosing mechanism and a feeding mechanism；Calcium hydroxide orlop portion sets ash cellar weighing device；Safety protection component is set at the top of niter ash cellar；Fluidizer is located in the lower hopper in calcium hydroxide orlop portion.The calcium hydroxide that the feeding system ensures that the flue for burning line to every sprays into accurately measures, guarantee the flue gas all the period of time qualified discharge of processing consumer waste incineration system, it avoids because spraying into the problem of niter ash quantity inaccuracy influences discharge, and can avoid the problem that calcium hydroxide is built bridge in lower hopper by fluidizer.
Description
Technical field
The utility model relates to incineration flue gas of household garbage field of purification, more particularly to a kind of consumer waste incineration dry method
The calcium hydroxide accurate measurement feeding system of gas cleaning.
Background technique
Burning disposal has been increasingly becoming the primary solutions of domestic city house refuse at present, can effectively realize life rubbish
The innoxious of rubbish, minimizing and recycling.In Refuse Incineration Process, inevitably generate environmentally hazardous flue gas, flue gas at
Divide complexity, includes HCl, SO2, HF, NOx, dioxin, the various ingredients such as Pb, Cd, Hg.Currently, conventional use " semidry method+dry method
Depickling+bag filter " handles flue gas, and most incineration plant executes national standard and European Union 2000 (EU2000/76/EEC) discharge standard.
Rotating spraying semidry method does not generate waste water because of its deacidification efficiency height, wide in waste incineration and generating electricity gas cleaning
General use, but in actual moving process, rotary atomizer or because of disorderly closedown, or because artificial maintenance is shut down, work as atomization
When device is out of service, flue gas pollutant has discharge beyond standards risk, when Incineration circumstances fluctuate, flue gas pollutant original concentration
It equally changes, only relies on rotating spraying semidry method at this time, also there is discharge beyond standards risk, therefore, the back segment of semidry method is arranged
Dry method, i.e., spray into slaked lime powder into reaction tower to the flue of bag filter, achieve the purpose that further depickling.
The feed of calcium hydroxide mostly uses disc feeding mode at present, the defect of this feed-type be the calcium hydroxide that sprays into without
Method metering can not accurately control the niter ash quantity into every line if having a plurality of burning line while running.Environmental protection pressure at present
It is growing day by day, and HCl, SO2Equal acidic materials are that the monitored emphasis of garbage incinerating power plant discharges pollutants, therefore how right
Every is burned the calcium hydroxide that line sprays into and accurately measured, it is ensured that all the period of time qualified discharge is problem to be solved.
Utility model content
Based on the problems of prior art, the purpose of the utility model is to provide a kind of consumer waste incineration dry method cigarettes
The calcium hydroxide accurate measurement feeding system of gas purification, the calcium hydroxide that the flue that can burn line to every sprays into accurately measure, really
Protect the fume treatment all the period of time qualified discharge of consumer waste incineration system.
The purpose of this utility model is achieved through the following technical solutions:
The utility model embodiment provide the calcium hydroxide accurate measurement of consumer waste incineration dry FGD process a kind of to
Material system, comprising:
Niter ash cellar, at least two dosing mechanisms, at least two feeding mechanisms, ash cellar weighing device, security protection
Component and fluidizer；Wherein,
Calcium hydroxide orlop portion is respectively equipped at least two taper lower hoppers, and each taper lower hopper bottom is respectively provided with one
The feed opening of a feed opening, each taper lower hopper bottom is sequentially connected a dosing mechanism and a feeder
Structure；
The ash cellar weighing device is arranged in the bottom of the niter ash cellar；
The safety protection component is arranged in the top of the niter ash cellar；
The fluidizer is located in the lower hopper in calcium hydroxide orlop portion.
The house refuse provided by the embodiment of the utility model it can be seen from above-mentioned technical solution provided by the utility model
The calcium hydroxide accurate measurement feeding system of dry FGD process is burned, it has the advantage that:
By setting calcium hydroxide orlop portion be arranged at least two taper lower hoppers, and be correspondingly arranged at least two metering to
Expect mechanism and two feeding mechanisms, connection formed it is a kind of can be to the accurate measurement feeding system that the calcium hydroxide of output accurately measures.
The calcium hydroxide for ensuring that the flue for burning line to every sprays into accurately measures, and ensure that the flue gas of processing consumer waste incineration system
All the period of time qualified discharge is avoided because spraying into the problem of niter ash quantity inaccuracy influences discharge.The system passes through in niter ash cellar
Fluidizer is set in the lower hopper of bottom, avoids calcium hydroxide the problem of lower hopper is built bridge.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model
Example, for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other accompanying drawings.
Fig. 1 is the composition schematic diagram of calcium hydroxide accurate measurement feeding system provided by the embodiment of the utility model；
In figure: 1- niter ash cellar；21,22- hand operated gate valve；31,32- pneumatic gate valve；41, it is flexible coupling before 42-；51,
52- measures weighing hopper；61, it is flexible coupling after 62-；71,72- star-like feeder；81,82- roots blower；91,92- venturi sprays
Device；10- ash cellar weighing device；11- fluidizer；12- safety valve；13- roof scrubber.
Specific embodiment
Below with reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, belongs to the protection scope of the utility model.It is not described in detail in the utility model embodiment
Content belong to the prior art well known to professional and technical personnel in the field.
As shown in Figure 1, a kind of niter of consumer waste incineration dry FGD process provided by the embodiment of the utility model
Grey accurate measurement feeding system, comprising:
Niter ash cellar, at least two dosing mechanisms, at least two feeding mechanisms, ash cellar weighing device, security protection
Component and fluidizer；Wherein,
Calcium hydroxide orlop portion is respectively equipped at least two taper lower hoppers, and each taper lower hopper bottom is respectively provided with one
The feed opening of a feed opening, each taper lower hopper bottom is sequentially connected a dosing mechanism and a feeder
Structure；
The ash cellar weighing device is arranged in the bottom of the niter ash cellar；
The safety protection component is arranged in the top of the niter ash cellar；
The fluidizer is located in the lower hopper in calcium hydroxide orlop portion.
In above-mentioned feeding system, every dosing mechanism include: sequentially connected hand operated gate valve, pneumatic gate valve,
Before be flexible coupling, measure weighing hopper, after be flexible coupling and star-like feeder.Setting star-like feeder can guarantee to be fed into feeding mechanism
Uniform steady and continuous, and the return air that the venturi-type eductors main line of feeding mechanism can be prevented to generate.
In above-mentioned feeding system, metering weighing hopper includes:
Temporary bucket, frequency conversion screw conveyor and weighing sensor；Wherein, the temporary bucket is located at the frequency conversion helical feed
Above machine；
The weighing sensor is located on the temporary bucket.
In above-mentioned feeding system, weighing sensor is three sets, is uniformly distributed the ear seat bottom for being located at the temporary bucket.
In above-mentioned feeding system, frequency conversion screw conveyor uses variable-frequency motor.
In above-mentioned feeding system, every feeding mechanism includes: roots blower, is connect through pipeline with venturi-type eductors, institute
The feed inlet for stating venturi-type eductors is connected with the star-like feeder for the dosing mechanism being connect.
In above-mentioned feeding system, fluidizer includes: fluidized plate and air compressor, and the fluidized plate is located at the niter
In the lower hopper of ash cellar bottom, the fluidized plate is connect with the air compressor outside the niter ash cellar.
In above-mentioned feeding system, safety protection component includes: to be respectively provided at safety valve and the storehouse of the calcium hydroxide the top of the warehouse
Push up deduster.
In above-mentioned feeding system, rapping apparatus is equipped on each taper lower hopper in calcium hydroxide orlop portion.
In above-mentioned feeding system, ash cellar weighing device includes:
Four sets of weighing sensors are uniformly distributed on the bottom for being located at the niter ash cellar.
Further, in above-mentioned feeding system, further includes: control device is sent with each dosing mechanism, each item respectively
Expect mechanism, ash cellar weighing device, safety protection component and fluidizer electrical connection, can control each device operation.
In above-mentioned calcium hydroxide accurate measurement feeding system, the effect of each device is as follows:
Niter ash cellar: for the storage of calcium hydroxide, calcium hydroxide squeezes into warehouse by tank car pneumatic conveying mode, and silo roof sets storehouse
Deduster and safety valve are pushed up, total weight is consumed for metering calcium hydroxide, sets weighing device at niter ash cellar support, totally 4 sets of weighings pass
According to number of lines is burned lower hopper is arranged, this patent is by taking 2 burning lines as an example, if 2 lower hoppers, sets on each hopper in sensor
Fluidized plate and rapping apparatus are set, the effect of fluidized plate is to avoid the calcium hydroxide in storehouse in fluidized state using compressed air
It builds bridge；
In every dosing mechanism:
Hand operated gate valve: hopper bottom sets hand operated gate valve, and when for bottom equipment maintenance, it is logical to close calcium hydroxide downlink
Road；
Pneumatic gate valve: hand operated gate valve bottom sets pneumatic gate valve, for feed to be fed and stopped into weighing hopper.
Be flexible coupling: weighing hopper top and lower part set and are flexible coupling, and effect is to ensure that weighing system independence, not by outer masterpiece
With it is accurate to guarantee to weigh；
Metering weighing hopper: it is made of temporary bucket, screw conveyor, weighing sensor, screw conveyor is located at weighing hopper bottom
Portion can adjust calcium hydroxide delivery rate by adjusting revolving speed, weighing sensor has three sets, setting is being weighed with variable-frequency motor
The ear that struggles against sits bottom.
In every feeding mechanism:
Venturi-type eductors: the positive pressure gas flow sent by roots blower is partially formed high speed gas by venturi-type eductors
The pipeline of stream, venturi-type eductors top forms negative pressure, brings calcium hydroxide into main line by negative pressure, then pass through air-flow for niter
Ash sprays into the flue before bag filter.
Roots blower: positive pressure gas flow is provided.
The feeding system of the utility model, realizing the calcium hydroxide sprayed into flue can accurate measurement, it is ensured that pollutant is complete
Period qualified discharge.
The utility model embodiment is described in further detail below in conjunction with attached drawing.
Such as Fig. 1, the feeding system of the utility model by niter ash cellar, fluidizer, hand operated gate valve, pneumatic gate valve,
It is flexible coupling, measures weighing hopper, star-like feeder, roots blower, venturi-type eductors and ash cellar weighing device composition.In use,
Calcium hydroxide is fed through tank car pneumatic conveying, is stored in niter ash cellar 1, and silo roof sets roof scrubber and safety valve (the two composition
Safety protection component), total weight is consumed for metering calcium hydroxide, sets ash cellar weighing device 10 at niter ash cellar support, totally four sets
Weighing sensor, according to number of lines is burned, setting taper lower hopper quantity (illustrates two taper lower hoppers, Ke Yigen in Fig. 1
It is even more according to needing to be arranged three, four), the fluidisation of rapping apparatus and fluidizer 11 is respectively provided on each taper lower hopper
Plate, the effect of fluidized plate are so that the calcium hydroxide in niter ash cellar is in fluidized state by compressed air and avoid building bridge；Calcium hydroxide
Enter metering weighing hopper 51,52 from each taper lower hopper by each blanking channel that feed opening connects, on each blanking channel according to
It is secondary to set hand operated gate valve 21,22, pneumatic gate valve 31,32, it is preceding be flexible coupling 41,42 and after be flexible coupling 61,62, hand operated gate valve
21,22 effect be maintenance when cut off calcium hydroxide blanking channel, the effect of pneumatic gate valve 31,32 be to metering weighing hopper in
Material and stopping feed, metering weighing hopper 51,52 tops and lower part are respectively set the forward and backward effect being flexible coupling and are to ensure that metering weighing
The independence of bucket 51,52 guarantees that weighing is accurate not by external force；It is (low that feed weight value is set in control device in advance
Position), stop feed weight value (high position), when the weight that shows of weighing sensor of metering weighing hopper 51,52 is to the low level set
When, the interior feed of pneumatic gate valve 31,32, Xiang Jiliang weighing hopper 51,52 is opened, when the weight that weighing sensor is shown to setting
When high-order, pneumatic gate valve 31,32 is closed, stops feed；Venturi-type eductors 91,92 tops are equipped with star-like feeder 71,72,
It is fed to venturi-type eductors upper pipe, effect is to guarantee feed uniformly, and can prevent venturi-type eductors main line
The temporary bucket bottom setting frequency conversion screw conveyor of the return air of generation, metering weighing hopper 51,52 uses variable-frequency motor, can pass through tune
Turn over speed adjusts calcium hydroxide delivery rate；The positive pressure gas flow sent by roots blower 81,82, by venturi-type eductors 91,
92, it is partially formed high-speed flow, venturi-type eductors 91, the pipeline formation negative pressure on 92 tops are brought into calcium hydroxide by negative pressure
Main line, then pass through air-flow for the flue before calcium hydroxide penetrating bag filter.By the implementation of the utility model, can solve
The calcium hydroxide unmeasurable problem in flue is sprayed into, realizes calcium hydroxide accurate measurement, it is ensured that acid contaminant all the period of time reaches
Mark discharge.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should
Subject to the scope of protection of the claims.
Claims (10)
1. a kind of calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process characterized by comprising
Niter ash cellar, at least two dosing mechanisms, at least two feeding mechanisms, ash cellar weighing device, safety protection component
And fluidizer；Wherein,
Calcium hydroxide orlop portion is respectively equipped at least two taper lower hoppers, and each taper lower hopper bottom is respectively provided under one
The feed opening of material mouth, each taper lower hopper bottom is sequentially connected a dosing mechanism and a feeding mechanism；
The ash cellar weighing device is arranged in the bottom of the niter ash cellar；
The safety protection component is arranged in the top of the niter ash cellar；
The fluidizer is located in the lower hopper in calcium hydroxide orlop portion.
2. the calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process according to claim 1,
It is characterized in that, in the system, every dosing mechanism includes: sequentially connected hand operated gate valve, pneumatic gate valve, preceding
Be flexible coupling, measure weighing hopper, after be flexible coupling and star-like feeder.
3. the calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process according to claim 2,
It is characterized in that, the metering weighing hopper includes:
Temporary bucket, frequency conversion screw conveyor and weighing sensor；Wherein, the temporary bucket is located on the frequency conversion screw conveyor
Side；
The weighing sensor is located on the temporary bucket.
4. the calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process according to claim 3,
It is characterized in that, the weighing sensor is three sets, it is uniformly distributed the ear seat bottom for being located at the temporary bucket.
5. the calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process according to claim 3,
It is characterized in that, the frequency conversion screw conveyor uses variable-frequency motor.
6. the calcium hydroxide accurate measurement of consumer waste incineration dry FGD process according to claim 1 or 2 is fed system
System, which is characterized in that in the system, every feeding mechanism includes: roots blower, is connect through pipeline with venturi-type eductors,
The feed inlet of the venturi-type eductors is connected with the star-like feeder for the dosing mechanism being connect.
7. the calcium hydroxide accurate measurement of consumer waste incineration dry FGD process according to claim 1 or 2 is fed system
System, which is characterized in that the fluidizer includes: fluidized plate and air compressor, and the fluidized plate is located at the niter ash cellar
In the lower hopper of bottom, the fluidized plate is connect with the air compressor outside the niter ash cellar.
8. the calcium hydroxide accurate measurement of consumer waste incineration dry FGD process according to claim 1 or 2 is fed system
System, which is characterized in that the safety protection component includes: to be respectively provided at safety valve and the silo roof dedusting of the calcium hydroxide the top of the warehouse
Device.
9. the calcium hydroxide accurate measurement of consumer waste incineration dry FGD process according to claim 1 or 2 is fed system
System, which is characterized in that be equipped with rapping apparatus on each taper lower hopper in calcium hydroxide orlop portion.
10. the calcium hydroxide accurate measurement of consumer waste incineration dry FGD process according to claim 1 or 2 is fed system
System, which is characterized in that the ash cellar weighing device includes:
Four sets of weighing sensors are uniformly distributed on the bottom for being located at the niter ash cellar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822216233.1U CN209612626U (en) | 2018-12-27 | 2018-12-27 | The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process |
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| CN201822216233.1U CN209612626U (en) | 2018-12-27 | 2018-12-27 | The calcium hydroxide accurate measurement feeding system of consumer waste incineration dry FGD process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054262A (en) * | 2019-12-31 | 2020-04-24 | 西安西矿环保科技有限公司 | Automatic proportioning pulping system and method |
| CN113769546A (en) * | 2021-09-26 | 2021-12-10 | 漳州市圣元环保电力有限公司 | Automatic desulfurization control device |
| CN117046224A (en) * | 2023-10-11 | 2023-11-14 | 北京利德衡环保工程有限公司 | Unpowered bin top dust remover for desulfurization slaked lime |
-
2018
- 2018-12-27 CN CN201822216233.1U patent/CN209612626U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054262A (en) * | 2019-12-31 | 2020-04-24 | 西安西矿环保科技有限公司 | Automatic proportioning pulping system and method |
| CN113769546A (en) * | 2021-09-26 | 2021-12-10 | 漳州市圣元环保电力有限公司 | Automatic desulfurization control device |
| CN117046224A (en) * | 2023-10-11 | 2023-11-14 | 北京利德衡环保工程有限公司 | Unpowered bin top dust remover for desulfurization slaked lime |
| CN117046224B (en) * | 2023-10-11 | 2024-01-26 | 北京利德衡环保工程有限公司 | Unpowered bin top dust remover for desulfurization slaked lime |
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