CN206705929U - A kind of municipal sludge heavy metal passivating device - Google Patents
A kind of municipal sludge heavy metal passivating device Download PDFInfo
- Publication number
- CN206705929U CN206705929U CN201720507840.6U CN201720507840U CN206705929U CN 206705929 U CN206705929 U CN 206705929U CN 201720507840 U CN201720507840 U CN 201720507840U CN 206705929 U CN206705929 U CN 206705929U
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- Prior art keywords
- sludge
- heavy metal
- urea
- case
- mixing reactor
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Abstract
The utility model discloses a kind of municipal sludge heavy metal passivating device,Including device body,Mixing reactor,Drying sludge case is provided with device body,Sludge conveyer belt,Urea storage case,Urea meter,Discharge hatch,Passivation reaction separating tank,Sludge outlet side,Passivation Treatment discharges case,Driving motor,Stir roll shaft,Puddler,Pressure controller,Temperature controller,After device body is by mixing urea with sludge after the soil with heavy metal pollution is dehumidified,Regulating and controlling temperature,By regulating and controlling to be adapted to the temperature of its reaction speed,Accelerate urea to react with the heavy metal in sludge,Accelerate passivation speed,The present apparatus has simple in construction,Reaction speed is fast,The heavy metal removed in sludge is thorough,Sludge can meet the requirement of landfill after being handled by the device,Realize the innoxious of sludge,Stabilize,Minimizing is handled,Equipment is few,Operation is flexible,It is widely portable to dewatered sludge and removes each heavy metal species.
Description
Technical field
Heavy metal passivating technique field is the utility model is related to, specially a kind of municipal sludge heavy metal passivating device.
Background technology
Municipal sewage plant of China typically all carries out dewater treatment, dewater treatment using mechanical dehydration machine to excess sludge
Moisture percentage in sewage sludge afterwards is higher, and generally 75~85%, content of organics is high in sludge, contains the parasite fourth of the twelve Earthly Branches, the micro- life of cause of disease
The presence of thing, heavy metal etc., particularly heavy metal makes it difficult to reach sanitary landfills standard.Meanwhile heavy metal generally has suddenly
Property or chronic toxicity, human body can be poisoned in a variety of ways, such as carcinogenic or non-straight ground connection triggers some diseases.Conventional heavy metal is stable
Change technology species is a lot, but has limitation in the processing for heavy metal waste, and particularly these technologies are all by pH values
The influence of change.When pH values are relatively low, heavy metal ion can dissolution again, be not reaching to the mesh of heavy metal waste long term stabilization
/ in the final disposal of waste, it will secondary pollution is caused to environment.
At present, the method for sludge heavy-metal stabilisation/solidification of practical application has cement and lime solidification method, cement kiln association
Same burning method, chemical reagent extraction method, microorganism leaching, phytoremediation etc.；Wherein, cement and lime solidification method technique is simple, locates
It is general to manage effect, but sludge volume increase-volume is larger, is unfavorable for follow-up sludge treatment；The methods of microorganism leaching, phytoremediation, deposits
In potential hazards such as secondary pollutions；Cement kiln collaboration burning method is limited larger by existing burning facility；Chemical reagent extraction method
Although can be with Resource recovery, operating cost be higher, easily causes secondary pollution etc..
Utility model content
The purpose of this utility model is to provide a kind of municipal sludge heavy metal passivating device, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the utility model provides following technical scheme：A kind of municipal sludge heavy metal passivating device,
Including device body and mixing reactor, described device body is provided with drying sludge case, is set below the drying sludge case
There is sludge conveyer belt, the right side of the drying sludge case is provided with urea storage case, and the lower section of the urea storage case is provided with urea
Meter, the urea meter are connected with each other with mixing reactor, and the lower section of the delivery end of the sludge conveyer belt, which is provided with, mixes
Reactor is closed, the lower right of the mixing reactor is provided with discharge Hatch Opening, and discharge Hatch Opening is welded directly together, the discharge storehouse
The lower section of mouth is provided with Passivation Treatment discharge case, passivation reaction separating tank, is provided with the top of the upper right side of the passivation reaction separating tank
Humic acid hand-hole, the lower right of the passivation reaction separating tank are provided with sludge outlet side.
Preferably, the top of the urea storage case is provided with pressure controller.
Preferably, the passivation reaction separating tank is provided with temperature controller.
Preferably, the right-hand member of the mixing reactor is provided with driving motor, and the bosom of the mixing reactor is provided with
Stir roll shaft, it is described stirring roll shaft be provided with puddler, the puddler is directly welded on puddle support, the driving motor and
Roll shaft is stirred to be connected with each other.
Preferably, the urea meter uses Hydraulic Diaphragm Metering Pump device.
Preferably, the drying sludge case is provided with moisture detector.
Compared with prior art, the beneficial effects of the utility model are：
（1）In the utility model, humic acid is mixed with urea by the way of sprinkling, and sprinkling makes liquid form mist
Shape, make mixing more uniform.
（2）In the utility model, temperature controller auto-control is best suitable for the temperature of passivation reaction, accelerates passivation reaction.
（3）The utility model has simple in construction, and reaction speed is fast, and the heavy metal removed in sludge is thorough, and sludge passes through
The requirement of landfill can be met after device processing, realize the innoxious of sludge, stabilisations, minimizing processing, equipment are few, grasp
Make flexibly, to be widely portable to dewatered sludge and remove each heavy metal species.
Brief description of the drawings
Fig. 1 is the utility model device body structural representation；
Fig. 2 is the utility model mixing reactor structural representation.
In figure：1st, drying sludge case；2nd, sludge conveyer belt；3rd, mixing reactor；4th, urea storage case；5th, urea measures
Device；6th, Hatch Opening is discharged；7th, passivation reaction separating tank；8th, sludge outlet side；9th, Passivation Treatment discharge case；10th, device body；11、
Driving motor；12nd, roll shaft is stirred；13rd, puddler；14th, pressure controller；15th, temperature controller；16th, humic acid hand-hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of municipal sludge heavy metal passivating device, bag
Device body 10 and mixing reactor 3 are included, device body 10 is provided with drying sludge case 1, and drying sludge case 1 is examined provided with humidity
Device is surveyed, the lower section of drying sludge case 1 is provided with sludge conveyer belt 2, and the right side of drying sludge case 1 is provided with urea storage case 4, urea storage
The top for hiding case 4 is provided with pressure controller 14, and the operating pressure of pressure controller 14 is 0.12~0.3MPa, urea storage
The lower section of case 4 is provided with urea meter 5, and urea meter 5 uses Hydraulic Diaphragm Metering Pump device, and urea meter 5 is with mixing instead
Device 3 is answered to be connected with each other, the lower section of the delivery end of sludge conveyer belt 2 connects provided with mixing reactor 3, the urine in mixing reactor 3
Element injection mixes by the way of dilution is sprayed with sludge, and the lower right of mixing reactor 3 is provided with discharge Hatch Opening 6, discharges Hatch Opening 6
It is welded directly together, the lower section of discharge Hatch Opening 6 is provided with Passivation Treatment discharge case 9, passivation reaction separating tank 7, passivation reaction point
Temperature controller 15 is provided with from groove 7, humic acid hand-hole 16, passivation reaction point are provided with the top of the upper right side of passivation reaction separating tank 7
Lower right from groove 7 is provided with sludge outlet side 8.
In the utility model, the right-hand member of mixing reactor 3 is provided with driving motor 11, and the bosom of mixing reactor 3 is set
Have stirring roll shaft 12, stirring roll shaft 12 be provided with puddler 13, puddler 13 is directly welded on puddle support, driving motor 11 and
Stirring roll shaft 12 is connected with each other.
Operation principle comprises the following steps：
A, sludge is injected into drying sludge case 1 first, drying sludge case 1 is while continuous by agitating roller by heating
Stirring, accelerate sludge in moisture evaporation, sludge is dried, reach dehydration require sludge by sludge conveyer belt send 2 enter it is mixed
Close reactor 3；
B, urea storage case 4 is by the way that urea and water are mixed by certain ratio, mixed urea reaction liquid
Pressurizeed by pressure controller 14 to urea storage case 4, nebulized by sprinkling and mixed with sludge, stirred while sprinkling
Roll shaft 12 is mixed constantly soil rolls；
C, the sludge after well mixed is admitted to passivation reaction separating tank 7, in the top right of passivation reaction separating tank 7
Top connection humic acid hand-hole 16, it is same to be mixed humic acid with sludge by the way of sprinkling, carried out by temperature controller 15
Temperature adjusting, accelerate the passivation reaction of heavy metal；
D, the heavy metal after Passivation Treatment and sludge separate, and sludge will discharge case 9 by Passivation Treatment and discharge.
In the utility model, humic acid is mixed with urea by the way of sprinkling, and it is vaporific that sprinkling forms liquid,
Make mixing more uniform；Temperature controller auto-control is best suitable for the temperature of passivation reaction, accelerates passivation reaction.
The utility model has simple in construction, and reaction speed is fast, and the heavy metal removed in sludge is thorough, and sludge passes through the dress
The requirement of landfill can be met after processing by putting, and realize the innoxious of sludge, stabilisation, minimizing processing, equipment is few, operation is clever
It is living, it is widely portable to dewatered sludge and removes each heavy metal species.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of municipal sludge heavy metal passivating device, including device body（10）And mixing reactor（3）, it is characterised in that：
Described device body（10）It is provided with drying sludge case（1）, the drying sludge case（1）Lower section be provided with sludge conveyer belt（2）,
The drying sludge case（1）Right side be provided with urea storage case（4）, the urea storage case（4）Lower section provided with urea measure
Device（5）, the urea meter（5）With mixing reactor（3）It is connected with each other, the sludge conveyer belt（2）Delivery end under
Side is provided with mixing reactor（3）Connection, the mixing reactor（3）Lower right be provided with discharge Hatch Opening（6）, the discharge Hatch Opening
（6）It is welded directly together, the discharge Hatch Opening（6）Lower section be provided with Passivation Treatment discharge case（9）, passivation reaction separating tank
（7）, the passivation reaction separating tank（7）Upper right side at the top of be provided with humic acid hand-hole（16）, the passivation reaction separating tank
（7）Lower right be provided with sludge outlet side（8）.
A kind of 2. municipal sludge heavy metal passivating device according to claim 1, it is characterised in that：The urea storage case
（4）Top be provided with pressure controller（14）.
A kind of 3. municipal sludge heavy metal passivating device according to claim 1, it is characterised in that：The passivation reaction point
From groove（7）It is provided with temperature controller（15）.
A kind of 4. municipal sludge heavy metal passivating device according to claim 1, it is characterised in that：The mixing reactor
（3）Right-hand member be provided with driving motor（11）, the mixing reactor（3）Bosom be provided with stirring roll shaft（12）, it is described to stir
Mix roll shaft（12）It is provided with puddler（13）, the puddler（13）It is directly welded on puddle support, the driving motor（11）
With stirring roll shaft（12）It is connected with each other.
A kind of 5. municipal sludge heavy metal passivating device according to claim 1, it is characterised in that：The urea meter
（5）Using Hydraulic Diaphragm Metering Pump device.
A kind of 6. municipal sludge heavy metal passivating device according to claim 1, it is characterised in that：The drying sludge case
（1）It is provided with moisture detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507840.6U CN206705929U (en) | 2017-05-09 | 2017-05-09 | A kind of municipal sludge heavy metal passivating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720507840.6U CN206705929U (en) | 2017-05-09 | 2017-05-09 | A kind of municipal sludge heavy metal passivating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206705929U true CN206705929U (en) | 2017-12-05 |
Family
ID=60465643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720507840.6U Expired - Fee Related CN206705929U (en) | 2017-05-09 | 2017-05-09 | A kind of municipal sludge heavy metal passivating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206705929U (en) |
-
2017
- 2017-05-09 CN CN201720507840.6U patent/CN206705929U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171205 Termination date: 20180509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |