CN106477834A - A kind of processing equipment for the old mud soil remediation of simple landfill and its technique - Google Patents
A kind of processing equipment for the old mud soil remediation of simple landfill and its technique Download PDFInfo
- Publication number
- CN106477834A CN106477834A CN201611037401.XA CN201611037401A CN106477834A CN 106477834 A CN106477834 A CN 106477834A CN 201611037401 A CN201611037401 A CN 201611037401A CN 106477834 A CN106477834 A CN 106477834A
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- Prior art keywords
- mud
- old
- retort
- quick lime
- screening machine
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/004—Sludge detoxification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of processing equipment for the old mud soil remediation of simple landfill, it is characterized in that, mainly it is made up of the DWG being sequentially connected, impurity screening machine, the first sludge pump and its connecting pipe, retort, the second sludge pump and its connecting pipe, band drier.Non-hygiene can simply be filled old mud treatment in situ in the case of without dilution by the present invention, its volume decrement is made to be original 1/2, release land resource, kills sex pheromone, heavy metal-passivated, repairs old Sludge landfill on-site soil and groundwater environment to greatest extent.A complete set of handling process floor space is little, can effectively prevent foul smell diffusion, less energy consumption, energy-saving safe.Complete set of equipments can continuous feed, rapid batch process old mud, equipment easy accessibility, can vehicle-mounted carry, maneuverability, strong applicability.
Description
Technical field
The present invention relates to non-hygiene simply fills old mud soil remediation field, in particular to a kind of for simple
Fill processing equipment and its technique of old mud soil remediation.
Background technology
In recent years, Beijing, Guangzhou, the news media in Shanghai have exposed the simple landfill of mud successively and have caused Soil Environmental Pollution
Event, social influence is severe.Counted according to the firmly portion of building, the whole nation is stable per year over not carrying out after 80% sludge dewatering treatment
Harmless treatment is i.e. by the simple landfill of outward transport.In past 20 years, the sewage plant sludge of the simple landfill of China is expected to surpass 2.4 hundred million tons
（Moisture content 80%）, these old mud become " time bomb " being hidden in soil, the sex pheromone in mud, heavy metal
Deng the ecological environment of pollutant high risks so that the environment of the built sewage treatment facility putting into operation reduces discharging benefit big discounting
Button, the old mud of high-moisture percentage also wastes land resource significantly.
At present, soil pollution has caused the great attention of State-level.On May 28th, 2016, State Council prints and distributes《Soil
Prevention and cure of pollution action plan》, referred to as " ten, soil ", is the milestone event of soil remediation cause.
Content of the invention
Present invention aims to China's simple old mud filling of non-hygiene over the past two decades, provide a kind of use
In the simple processing equipment filling old mud soil remediation, non-hygiene simply can be filled old mud in not diluted situation
Lower treatment in situ, reduces the moisture content of mud, kills the sex pheromone in mud, the heavy metal in passivation mud, realizes dirty
The minimizing of mud, stabilisation, innoxious, discharge land resource, repair to greatest extent the on-site soil of old Sludge landfill and
Groundwater environment.Meanwhile, should to have a floor space little for this handling process, prevents foul smell diffusion, energy-conservation, safety, can continuously enter
Material processes the feature of old mud.
In order to achieve the above object, technical scheme is as follows：One kind fills old mud soil remediation for simple
Processing equipment it is characterised in that described processing equipment includes
DWG, described DWG tilts to install, and described DWG lower end arranges mud material taking mouth,
Upper end arranges blanking port, and mud material taking mouth is arranged on waste pit bottom, for the old mud of simple landfill is transported to impurity screening
Machine；
Impurity screening machine, described impurity screening machine immediately install by DWG blanking port, and described impurity screening machine top sets
There is quick lime dog-house, bottom sets taper discharge port, described impurity screening machine is used for making old mud and quick lime tentatively mix, and
Large-scale impurity in old mud and quick lime is sieved out；
First sludge pump, described first sludge pump is arranged on below impurity screening machine taper discharge port, and mud and quick lime are entered
Row pressurization, and retort is connected to by connecting pipe；
Retort, setting blade agitator inside described retort, old mud and quick lime are made in agitator in described retort
With under occur from heat release hybrid reaction in retort, the supernatant of reaction drains into waste water collection device by overflow pipe, mud by
Taper discharge port falls in the second sludge pump of lower section；
Second sludge pump, described second sludge pump is arranged on below retort taper dump skip, mud is pressurizeed, then passes through
Pipeline is to band drier；
Band drier, the mud that described band drier comes to the second sludge pump conveying is dried process.
According to a preferred embodiment of the invention, being provided with inside described impurity screening machine has axle spiral shell by multiple equidirectional rotations
The screening machine of bar composition, screening machine end arranges belt conveyor, and the pitch gap of screw rod is 30 ~ 50mm, old mud and calculogenesis
The belt conveyor that large-scale impurity in ash moves to screening machine end along screw rod direction of rotation is discharged, and mud and quick lime then lead to
The pitch gap crossing screw rod falls into lower taper discharge port, and multiple have the mutual rotating clutch of axle screw rod can crush big old dirt
Mud and quicklime particles.
According to a preferred embodiment of the invention, the connecting pipe between the first sludge pump and retort includes one and is vertically arranged
Vertical pipeline, between the first sludge pump and vertical pipeline connect turning pipeline, be also provided between vertical pipeline and retort turn
Curved pipe, the radius of turn of described turning pipeline is 3 ~ 5 times of calibers.
According to a preferred embodiment of the invention, retort top is cylinder, and bottom is taper dump skip, and unloads in taper
Knife gate valve is set at hopper.
According to a preferred embodiment of the invention, retort side is provided with vertical cat ladder, top is provided with railing and access hole, side
Just repair and maintenance.
According to a preferred embodiment of the invention, described blade agitator includes at least 2 layers blade setting up and down, every layer of oar
Leaf is made up of 2 arc shaped blades, is mutually perpendicular to be crisscross arranged between adjacent 2 layers of blade.
According to a preferred embodiment of the invention, at least provided with 3 layers of guipure inside described band drier, guipure adopts 20-
60 mesh stainless steel cloths, the porch setting banded extruder of described band drier, described band drier is additionally provided with for making
The water resource heat pump of fabricate-heat wind or air source heat pump, and for excluding wet-emitting blower or the condenser system of moisture, mud is by being dried
The banded extruder of machine porch is made strip and is laid on guipure, is dragged by actuating device and slowly moves in drying machine.
Another object of the present invention is to for China's simple old mud filling of non-hygiene over the past two decades, providing one
Plant for the simple processing method filling old mud soil remediation, can be by the non-hygiene old mud of simple landfill not diluted
In the case for the treatment of in situ, reduce the moisture content of mud, kill the sex pheromone in mud, the heavy metal in passivation mud, real
The minimizing of existing mud, stabilisation, innoxious, release land resource, repair the on-site soil of old Sludge landfill to greatest extent
Earth and groundwater environment.Meanwhile, should to have a floor space little for this handling process, prevents foul smell diffusion, energy-conservation, safety, Neng Goulian
Continuous charging processes the feature of old mud.
To achieve these goals, technical scheme is as follows：One kind fills old mud soil remediation for simple
Processing method it is characterised in that the method comprises the following steps：
The old mud of simple landfill of moisture content more than 80% can be delivered directly to impurity sieve in waste pit by A, DWG
Extension set；
B, add quick lime from the quick lime dog-house of impurity screening machine, quick lime adds 2% ~ 6% that quality is old sludge quality,
The belt conveyor that large-scale impurity in old mud and quick lime moves to screening machine end along screw rod direction of rotation is discharged, mud
Then lower taper discharge port is fallen into by the pitch gap of screw rod with quick lime；
C, described first sludge pump pressurize to mud and quick lime, then by pipeline to retort；
D, after screening moisture content are 80% old mud and quick lime occurs efficient uniform under agitator effect in retort
From heat release hybrid reaction, in course of reaction, moisture percentage in sewage sludge is down to 70% ~ 75%, and the supernatant of reaction drains into waste water by overflow pipe and receives
Acquisition means, mud is fallen in the second sludge pump of lower section by taper discharge port；
E, described second sludge pump pressurize to mud, then by pipeline to band drier；
F, mud are made strip by the banded extruder of drying machine porch and are laid on guipure, are dragged in drying machine by actuating device
Slowly move, hot blast passes through the mud being layered on guipure from bottom to top or from top to down, heat drying simultaneously takes away moisture, tail gas
Moisture by wet-emitting blower or discharge by the condenser system that is independently arranged, and dried moisture percentage in sewage sludge is down to 55% ~ 60%, finally by unloading
Material mouth discharges backfill in original waste pit.
The invention has the advantages that：
1. non-hygiene simply can be filled old mud treatment in situ in the case of without dilution, kill the source of disease in mud
Heavy metal in microorganism, passivation mud, realizes the minimizing of mud, stabilisation, innoxious, discharges land resource, maximum limit
The on-site soil and groundwater environment of the old Sludge landfill of reparation of degree.
2. the sludge quality after processing is stable, no longer has sex pheromone and Leaching of Heavy Metals, and volume decrement is former simultaneously
1/2 having, discharges a large amount of soils, improves soil and Ecological Groundwater.
3. a complete set of handling process and complete set of equipments floor space are little, can effectively prevent foul smell diffusion, less energy consumption, safety
Energy-conservation.
4. a complete set of handling process and complete set of equipments can continuous feed, rapid batch processes old mud, equipment dismounting side
Just, can vehicle-mounted carry, maneuverability, strong applicability.
Brief description
Fig. 1 is a kind of handling process and its one-tenth simply filling old mud soil remediation for non-hygiene that the present invention provides
Complete equipment schematic diagram.
Specific embodiment
Below according to Fig. 1, illustrate presently preferred embodiments of the present invention.
As shown in figure 1, the present invention provide a kind of for non-hygiene simply fill old mud soil remediation handling process and
Its complete set of equipments, mainly by the DWG 1 being sequentially connected, impurity screening machine 2, the first sludge pump 3 and its connecting pipe
4th, retort 5, the second sludge pump 6 and its connecting pipe 4, band drier 7 form.
Described DWG 1 tilts to install, and by the totally-enclosed parcel of corrosion resistant plate, inside is provided with two shaftless spiral shells to shell
Rotation 101, its underpart is provided with mud material taking mouth 102 near waste pit bottom, and middle part is provided with fixed support 103, top blanking port 104
Connect impurity screening machine 2.The non-hygiene of moisture content more than 80% simply can be filled old mud on the spot by described DWG 1
It is delivered directly to impurity screening machine 2 entrance, the slow decline of mud liquid level in waste pit can be kept in course of conveying, do not destroy table
The metastable sludge blanket in face, it is to avoid the spilling of foul smell.
Described impurity screening machine 2 immediately install by DWG blanking port 104, and top is provided with quick lime dog-house 201,
Quick lime adds 2% ~ 6% that quality is old sludge quality, and inside is provided with the sieve being made up of axle screw rod 202 of multiple equidirectional rotations
Extension set, the gap between two adjacent screws is 30 ~ 50mm, and the large-scale impurity such as stone in old mud and quick lime revolves along screw rod
Turn direction and move to the belt conveyor 203 of screening machine end and discharge, mud and quick lime are then fallen by the pitch gap of screw rod
Enter lower taper discharge port, screening machine has certain mixing crushing function concurrently, old mud and quick lime can be made tentatively to mix, many
The mutual rotating clutch of individual screw rod can crush big mud and quicklime particles reduce the abrasion to bottom the first sludge pump 3.
Described first sludge pump 3 is arranged on below impurity screening machine taper discharge port 204, mud and quick lime is carried out add
Pressure, then retort 5 is delivered to by pipeline 4；The radius of turn of connecting pipe is 5 times of calibers.
Described retort 5 is vertical, and floor space is little, and design sludge retention time is 1 ~ 3 day, and retort top is cylinder
Body, bottom is taper dump skip 502 and sets knife gate valve 503, internal setting blade agitator 501.Moisture content is 80% after screening
Old mud and quick lime occur in retort under agitator 501 effect efficient uniform from heat release hybrid reaction, reacted
In journey, moisture percentage in sewage sludge is down to 70% ~ 75%, and sex pheromone is killed, and the heavy metal in mud is passivated, and realizes soil heterotopic
Repair.The supernatant of reaction drains into waste water collection device by overflow pipe 504, and mud is fallen into the of lower section by taper discharge port 502
In two sludge pumps 6.Retort side is provided with vertical cat ladder 505, top is provided with railing and access hole, facilitates repair and maintenance.
Described blade agitator 501 is applied to the high solid content mud of stirring, at least provided with 2 layers of blade, between layers
Blade is mutually perpendicular to interlock, and every layer of blade is made up of 2 arc shaped blades, and agitator power is configured to 4 ~ 6w/t mud.As schemed
Show, described blade agitator 501 is provided with three layers of blade of upper, middle and lower, every layer of blade is made up of 2 arc shaped blades, described 2 arcs
Blade is located on same centrage, and its 2 arc shaped blade at the middle and upper levels is mutually vertical with the centrage of 2 arc shaped blades in middle level
Directly, and the centrage of 2 arc shaped blades of the 2 of middle level arc shaped blades and lower floor is mutually perpendicular to.
Described second sludge pump 6 is arranged on below retort taper dump skip 502, and mud is pressurizeed, then by pipe
Road is delivered to band drier 7；The radius of turn of connecting pipe is 5 times of calibers.
At least provided with 3 layers of guipure inside described band drier 7, guipure adopts 20-60 mesh stainless steel cloth, and mud is by doing
The banded extruder 701 of dry machine porch is made noodles shape and is laid on guipure, is dragged by actuating device and slowly moves in drying machine,
The speed of service can be according to mud free temperature adjustment.Drying machine is provided with hot air circulation, and hot blast is by water resource heat pump or air source heat pump
Preparation, passes through from bottom to top or from top to down the mud being layered on guipure, and heat drying simultaneously takes away moisture, and the moisture of tail gas is by arranging
Wet blower or the condenser system being independently arranged are discharged, and dried moisture percentage in sewage sludge is down to 55% ~ 60%, finally by discharge port 702
Discharge backfill in original waste pit, drying machine side is provided with access hole 703, maintains easily management.Drive mechanism drives 3 layers
Guipure moves so that mud moves to middle level from upper strata, moves again to lower floor.
Although present disclosure has been made to be discussed in detail by above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read the above, for the present invention's
Multiple modifications and substitutions all will be apparent from.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (8)
1. a kind of processing equipment for the old mud soil remediation of simple landfill is it is characterised in that described processing equipment includes
DWG, described DWG tilts to install, and described DWG lower end arranges mud material taking mouth,
Upper end arranges blanking port, and mud material taking mouth is arranged on waste pit bottom, for the old mud of simple landfill is transported to impurity screening
Machine；
Impurity screening machine, described impurity screening machine immediately install by DWG blanking port, and described impurity screening machine top sets
There is quick lime dog-house, bottom sets taper discharge port, described impurity screening machine is used for making old mud and quick lime tentatively mix, and
Large-scale impurity in old mud and quick lime is sieved out；
First sludge pump, described first sludge pump is arranged on below impurity screening machine taper discharge port, and mud and quick lime are entered
Row pressurization, and retort is connected to by connecting pipe；
Retort, setting blade agitator inside described retort, old mud and quick lime are made in agitator in described retort
With under occur from heat release hybrid reaction in retort, the supernatant of reaction drains into waste water collection device by overflow pipe, mud by
Taper discharge port falls in the second sludge pump of lower section；
Second sludge pump, described second sludge pump is arranged on below retort taper dump skip, mud is pressurizeed, then passes through
Pipeline is to band drier；
Band drier, the mud that described band drier comes to the second sludge pump conveying is dried process.
2. as claimed in claim 1 it is used for the simple processing equipment filling old mud soil remediation it is characterised in that described miscellaneous
It is provided with by the screening machine being made up of axle screw rod of multiple equidirectional rotations inside matter screening machine, screening machine end arranges Belt Conveying
Machine, the pitch gap of screw rod is 30 ~ 50mm, and the large-scale impurity in old mud and quick lime moves to screening along screw rod direction of rotation
The belt conveyor of machine end is discharged, and mud and quick lime then fall into lower taper discharge port by the pitch gap of screw rod, many
Individual have the mutual rotating clutch of axle screw rod can crush big old mud and quicklime particles.
3. the processing equipment being used for the old mud soil remediation of simple landfill as claimed in claim 1 is it is characterised in that first is dirty
Connecting pipe between dredge pump and retort includes a vertically disposed vertical pipeline, connects between the first sludge pump and vertical pipeline
Switch through curved pipe, be also provided with turning pipeline between vertical pipeline and retort, the radius of turn of described turning pipeline is 3 ~ 5 times of pipes
Footpath.
4. as claimed in claim 1 it is used for the simple processing equipment filling old mud soil remediation it is characterised in that retort
Top is cylinder, and bottom is taper dump skip, and sets knife gate valve at taper dump skip.
5. as claimed in claim 1 it is used for the simple processing equipment filling old mud soil remediation it is characterised in that retort
Side is provided with vertical cat ladder, top is provided with railing and access hole, facilitates repair and maintenance.
6. as claimed in claim 1 it is used for the simple processing equipment filling old mud soil remediation it is characterised in that described oar
Leaf agitator includes at least 2 layers blade setting up and down, and every layer of blade is made up of 2 arc shaped blades, phase between adjacent 2 layers of blade
Mutually vertical interlaced setting.
7. as claimed in claim 1 it is used for the simple processing equipment filling old mud soil remediation it is characterised in that described band
Formula dryer inner adopts 20-60 mesh stainless steel cloth, the porch of described band drier at least provided with 3 layers of guipure, guipure
Setting banded extruder, described band drier is additionally provided with the water resource heat pump or air source heat pump for manufacturing hot blast, and is used for
The wet-emitting blower of exclusion moisture or condenser system, mud is made strip by the banded extruder of drying machine porch and is laid on guipure,
Dragged by actuating device and slowly move in drying machine.
8. a kind of processing method for the old mud soil remediation of simple landfill is it is characterised in that the method comprises the following steps：
The old mud of simple landfill of moisture content more than 80% can be delivered directly to impurity sieve in waste pit by A, DWG
Extension set；
B, add quick lime from the quick lime dog-house of impurity screening machine, quick lime adds 2% ~ 6% that quality is old sludge quality,
The belt conveyor that large-scale impurity in old mud and quick lime moves to screening machine end along screw rod direction of rotation is discharged, mud
Then lower taper discharge port is fallen into by the pitch gap of screw rod with quick lime；
C, described first sludge pump pressurize to mud and quick lime, then by pipeline to retort；
D, after screening moisture content are 80% old mud and quick lime occurs efficient uniform under agitator effect in retort
From heat release hybrid reaction, in course of reaction, moisture percentage in sewage sludge is down to 70% ~ 75%, and the supernatant of reaction drains into waste water by overflow pipe and receives
Acquisition means, mud is fallen in the second sludge pump of lower section by taper discharge port；
E, described second sludge pump pressurize to mud, then by pipeline to band drier；
F, mud are made strip by the banded extruder of drying machine porch and are laid on guipure, are dragged in drying machine by actuating device
Slowly move, hot blast passes through the mud being layered on guipure from bottom to top or from top to down, heat drying simultaneously takes away moisture, tail gas
Moisture by wet-emitting blower or discharge by the condenser system that is independently arranged, and dried moisture percentage in sewage sludge is down to 55% ~ 60%, finally by unloading
Material mouth discharges backfill in original waste pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037401.XA CN106477834A (en) | 2016-11-23 | 2016-11-23 | A kind of processing equipment for the old mud soil remediation of simple landfill and its technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037401.XA CN106477834A (en) | 2016-11-23 | 2016-11-23 | A kind of processing equipment for the old mud soil remediation of simple landfill and its technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106477834A true CN106477834A (en) | 2017-03-08 |
Family
ID=58274925
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611037401.XA Pending CN106477834A (en) | 2016-11-23 | 2016-11-23 | A kind of processing equipment for the old mud soil remediation of simple landfill and its technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526214A (en) * | 2018-05-28 | 2018-09-14 | 上海龙净环保科技工程有限公司 | Heterogeneous oxidation soil remediation method and system |
| CN110052487A (en) * | 2019-03-22 | 2019-07-26 | 中科京投环境科技江苏有限公司 | A kind of mercury contaminated soil prosthetic appliance |
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| CN206279062U (en) * | 2016-11-23 | 2017-06-27 | 上海市政工程设计研究总院（集团）有限公司 | A kind of processing equipment and its technique for simply filling old sludge soil remediation |
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| CN101913741A (en) * | 2010-08-19 | 2010-12-15 | 北京中持绿色能源环境技术有限公司 | System and method for treating sludge containing heavy metal |
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| CN203048760U (en) * | 2013-02-01 | 2013-07-10 | 成都源创环保工程有限公司 | Device for stabilizing sludge with lime |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526214A (en) * | 2018-05-28 | 2018-09-14 | 上海龙净环保科技工程有限公司 | Heterogeneous oxidation soil remediation method and system |
| CN110052487A (en) * | 2019-03-22 | 2019-07-26 | 中科京投环境科技江苏有限公司 | A kind of mercury contaminated soil prosthetic appliance |
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