CN110127981A - Mud decrement processing system and its technique - Google Patents
Mud decrement processing system and its technique Download PDFInfo
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- CN110127981A CN110127981A CN201910439741.2A CN201910439741A CN110127981A CN 110127981 A CN110127981 A CN 110127981A CN 201910439741 A CN201910439741 A CN 201910439741A CN 110127981 A CN110127981 A CN 110127981A
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000012545 processing Methods 0.000 title claims abstract description 21
- 239000010802 sludge Substances 0.000 claims abstract description 116
- 238000004880 explosion Methods 0.000 claims abstract description 56
- 239000007788 liquid Substances 0.000 claims abstract description 39
- 230000008569 process Effects 0.000 claims abstract description 31
- 238000000926 separation method Methods 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000010865 sewage Substances 0.000 claims description 20
- 239000004566 building material Substances 0.000 claims description 6
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 230000003301 hydrolyzing effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
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- 230000000087 stabilizing effect Effects 0.000 claims description 4
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- 238000004519 manufacturing process Methods 0.000 claims description 3
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- 238000003825 pressing Methods 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 238000004064 recycling Methods 0.000 abstract description 6
- 230000006641 stabilisation Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 10
- 239000005416 organic matter Substances 0.000 description 5
- 239000012528 membrane Substances 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 244000052769 pathogen Species 0.000 description 3
- 230000001717 pathogenic effect Effects 0.000 description 3
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- 241000894006 Bacteria Species 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
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- 239000013589 supplement Substances 0.000 description 2
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- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
-
- 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
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of mud decrement processing system and its techniques.The technical scheme is that including sludge heating power steam explosion module, it is separated by solid-liquid separation module, vapor collection module, sludge, which is collected, recycles module and conveyor module, the sludge heating power steam explosion module includes the sludge tank containing sludge, steam, compressed air, steam explosion host and process tank group, the separation of solid and liquid module includes the solid-liquid separator being connected to process tank group, the vapor collection module includes the vapor spray recovery tower connecting with steam explosion host, the sludge, which is collected, recycles module to connect with solid-liquid separator, the conveyor module includes the pipeline and conveyer of setting between modules.The mud decrement processing system that scheme provided by the invention fully meets minimizing, innoxious, stabilisation and recycling treatment require.
Description
Technical field
The present invention relates to technical field of sludge treatment, in particular to a kind of recycling recycle mud decrement processing system and
Its technique.
Background technique
With economic development, municipal sewage quantity constantly increases.According to correlation predictive, China's dewatered sludge annual output is very at present
It is high.Contain a large amount of N, P, K, Ca and organic matter in municipal sludge, and N, P there can be length based on organic with slow release
Effect property.Sludge is useful living resources, as can rationally utilizing can then turn waste into wealth.
Treatment of Sludge is exactly to carry out harmless processing process to sludge, including removing the heavy metal in sludge, pathogen, worm
Ovum, carcinogenic substance, organic matter macromolecular etc..Existing newer method for sludge treatment mainly includes sludge wet oxidation process, film biology
Reactor for treatment method.
Sludge wet oxidation process (WO method) is that sludge is placed in closed reactor, is passed through sky under high-temperature and high-pressure conditions
Gas or oxygen make oxidant, decompose oxidation operation in sludge by submerged combustion principle, convert inorganic matter for organic matter
Process.The method is primarily adapted for use in the various organic sludges difficult to degrade of processing, the disadvantage is that the device is complicated, operation and maintenance cost is high.
Membrane Bioreactor for Wastewater Treatment method refers to the membranous system in membrane separation technique and the life in Sewage Biological Treatment engineering
New process made of object reactor be combined with each other.The residence time of sludge is very long in membrane bioreactor, causes the process time long,
Treatment effeciency is low or even avoidable spoil disposal, but the blocking of film and membrane material price problem limit the popularization and application of this method.
After above two scheme is discharged, for sewage plant sludge after decrement, it can be used for power plant boiler and burn hair
The characteristics of electric auxiliary fuel, proposes that a kind of more perfect scheme is exactly the purpose of the application.According to " energy-saving and emission-reduction " and " circulation warp
The thought of Ji " makes full use of calorific value specific to heat source possessed by sludge and waste heat advantage and sludge itself, to municipal sewage
Factory's sludge carries out resource utilization, meanwhile, power plant, which mixes, burns dewatered sludge and carries out boiler power generation by waste combustion, and entire technical process both can be with
The purpose for reaching national environmental standard, and harmless treatment and resource utilization to municipal sludge may be implemented is exactly the present invention
People's problem to be solved.
Summary of the invention
In view of the deficienciess of the prior art, the main purpose of the present invention is to provide one kind to fully meet minimizing, nothing
The mud decrement processing system of evilization, stabilisation and recycling.
To achieve the above object, the present invention provides the following technical scheme that a kind of mud decrement processing system, including sludge
Heating power steam explosion module is separated by solid-liquid separation module, vapor collection module, sludge collection recycling module and conveyor module, described
Sludge heating power steam explosion module includes the sludge tank containing sludge, steam, compressed air, steam explosion host and process tank group, described
Being separated by solid-liquid separation module includes the solid-liquid separator being connected to process tank group, and the vapor collection module includes connecting with steam explosion host
The vapor spray recovery tower connect, the sludge, which is collected, recycles module to connect with solid-liquid separator, and the conveyor module includes
Pipeline and conveyer between modules is set.
Preferably, the process tank group is sequentially connected hydrolytic decomposition pot, produces gas tank and quenched tank, the steam explosion host with
Screw pump is provided between hydrolytic decomposition pot.
Preferably, the solid-liquid separator is filter press, is provided with feed pump between the quenched tank and filter press.
Preferably, the conveyer is the positive-pressure spiral batcher of setting in the duct.
Preferably, the sludge heating power steam explosion module is connected with sludge pretreatment module, the sludge pretreatment module packet
Include horizontal centrifuge, sludge tank and the plunger pump being arranged between sludge tank and steam explosion host.
Preferably, the solid-liquid separator is connected with water recovery unit and mud recovery unit, and the water recovery unit is logical
Piping is connected to sewage plant, and the water recovery unit is integrated sewage disposal device, the integrated sewage treating apparatus
Including anoxic treatment unit, Anaerobic Treatment unit, MBBR processing unit and precipitation unit.
A kind of mud decrement treatment process, includes the following steps,
(1), water content is stored in sludge tank, passes through conveying 80% after sludge to be treated is after horizontal centrifuge is dehydrated
System squeezes into the sludge in sludge tank in steam explosion host；
(2), steam explosion host computer temperature is 230 DEG C, the saturated vapor heating pressurized sludge that pressure is 2.5MPa, pressure stabilizing 15 minutes
Onepull is completed in abrupt release afterwards；
(3), the sludge after steam explosion dumps in process tank group, then sludge is extracted into solid-liquid point using slush pump by tube shaped
It is separated by solid-liquid separation from being realized in device；
(4), it is delivered to sewage plant after treatment by the generation water being separated by solid-liquid separation in the step (3), the mud of generation transports
It is recycled to power plant's incineration disposal or as building material.
Preferably, the transportation system in the step (1) is conveyed by tube shaped using pressure, and transportation system power output is
10t/h, discharging ora switch device and feeding device including delivery pump, connection, feeding device use positive-pressure spiral batcher,
It is fed using spiral and carries out precompressed, the positive-pressure spiral batcher can send sludge to hydraulic planger pump.
Preferably, the pipeline is the steel pipe of lined with ultra-high molecular polyethylene.
The present invention has the following advantages compared with the prior art, minimizing: in sludge outside moisture removal, organic matter (fugitive constituent)
Content accounts for about 50 ~ 60%, and ash content accounts for about 40 ~ 45%, and main component is ash content after steam explosion is reduced.With the dirt of 1 ton of moisture content 80%
For mud, only 200 kilograms or so of sludge are formed after steam explosion is reduced, reduction rate has reached 80%.
Innoxious and stabilisation: it is not necessarily to add any chemical agent during steam explosion；Bacterium, pathogen in sludge etc. have
Evil pollutant is killed and is cracked at high temperature under high pressure；Foul smell in production process etc. can all divide after biology, chemical treatment
Solution；The moisture evaporated during sludge steam explosion is all absorbed through spray column absorption condensation.
Recycling: sludge incineration can utilize the heat of sludge itself to greatest extent, can be recycled needed for supplement Treatment of Sludge
Most of energy；Sludge burning ash residue is excellent building materials raw material, can be all of.
Detailed description of the invention
Fig. 1 is a kind of structural block diagram of mud decrement processing system of the invention；
Fig. 2 is a kind of device connection diagram of mud decrement processing system of the invention.
In figure: 1, sludge heating power steam explosion module；2, it is separated by solid-liquid separation module；3, vapor collection module；4, sludge is collected again
Utilize module；5, conveyor module；6, steam explosion host；7, gas fired-boiler；8, air compressor；9, air accumulator；10, plunger pump；11,
Screw pump；12, process tank group；121, hydrolytic decomposition pot；122, gas tank is produced；123, quenched tank；13, filter press；14, at integrated sewage water
Manage equipment；16, feed pump.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, a kind of mud decrement processing system, including sludge heating power steam explosion module 1, separation of solid and liquid module 2, water
Vapor collection module 3, sludge, which are collected, recycles module 4 and conveyor module 5, and the sludge heating power steam explosion module 1 includes steam explosion
Host 6 and process tank group, the separation of solid and liquid module 2 includes the solid-liquid separator being connected to process tank group, the vapor
Collection module 3 includes the vapor spray recovery tower connecting with steam explosion host 6, and the sludge, which is collected, recycles module 4 and solid-liquid
Separator connection, the conveyor module 5 include the pipeline and conveyer of setting between modules.
It is the system structure diagram of this programme referring to attached drawing 1, sludge can be carried out by sludge heating power steam explosion module 1
Steam explosion, the sludge after steam explosion, which is delivered to, is separated by solid-liquid separation module 2, and the water that when vapor collection module 3 can be to steam explosion generates
Steam is collected；Sludge by being separated by solid-liquid separation module 2 generates moisture and ash content respectively, and moisture is defeated by conveyor module 5
It send to sewage treatment plant, ash content is then transported to power plant's incineration disposal or recycles as building material.This programme is relative to existing
There is technology that there is whole system to set up using modularization is integrated, pipeline, whole process is unattended, full intellectualized.Entirely
Technique is excessive without any solid, liquid, gas, and working environment is neatly orderly, effectively promotes water factory's integrated environment.Wherein steam by
Gas fired-boiler 7 provides, and the raw material of gas fired-boiler 7 is municipal combustion gas and municipal tap water, and compressed air air compressor 8 provides,
Air compressor 8 is connected with air accumulator 9.
Preferably, the process tank group is sequentially connected hydrolytic decomposition pot 121, produces gas tank 122 and quenched tank 123, described
Screw pump 11 is provided between steam explosion host 6 and process tank group 12.
Preferably, the solid-liquid separator is filter press 13, is provided with charging between the quenched tank 123 and filter press 13
Pump 16.
Preferably, the conveyer is the positive-pressure spiral batcher of setting in the duct.
Preferably, the sludge heating power steam explosion module 1 is connected with sludge pretreatment module, the sludge pretreatment module packet
Include horizontal centrifuge, sludge tank 15 and the plunger pump 10 being arranged between sludge tank 15 and steam explosion host 6.
Preferably, the solid-liquid separator is connected with water recovery unit and mud recovery unit, and the water recovery unit is logical
Piping is connected to sewage plant, and the water recovery unit is integrated sewage disposal device 14, and the integrated sewage disposal is set
Standby 14 include anoxic treatment unit, Anaerobic Treatment unit, MBBR processing unit and precipitation unit.
A kind of mud decrement treatment process, includes the following steps,
(1), the sludge generated by sewage treatment plant, after horizontal centrifuge is dehydrated after water content 80%, be stored in sludge tank,
The sludge in sludge tank is squeezed into steam explosion host 6 by transportation system；
(2), steam explosion host 6 is 230 DEG C using temperature, and the saturated vapor that pressure is 2.5MPa heats pressurized sludge, and pressure stabilizing 15 divides
Onepull is completed in abrupt release after clock；
(3), the sludge after steam explosion dumps in process tank group, then sludge is extracted into solid-liquid point using slush pump by tube shaped
It is separated by solid-liquid separation from being realized in device；
(4), it is delivered to sewage plant after treatment by the generation water being separated by solid-liquid separation in the step (3), the mud of generation transports
It is recycled to power plant's incineration disposal or as building material.
Preferably, the transportation system in the step (1) is conveyed by tube shaped using pressure, and transportation system power output is
10t/h, discharging ora switch device and feeding device including delivery pump, connection, feeding device use positive-pressure spiral batcher,
It is fed using spiral and carries out precompressed, the positive-pressure spiral batcher can send sludge to hydraulic planger pump 10.
Preferably, the pipeline is the steel pipe of lined with ultra-high molecular polyethylene.
Transportation system range is to be transported in steam explosion host 6 by pipeline with sludge dedicated plunger pump 10 from sludge tank 15,
Slurry mixture after steam explosion is also to be transferred by pipeline to solid-liquid separator.Transportation system and steam explosion system support are arranged,
It is conveyed using pressure, system power output is 10t/h.Discharging ora switch device is connected with lower part feeding device, feeding device proposed adoption
Positive pressure batcher is fed using spiral and carries out precompressed, it can be achieved that higher sludge inhalation rate.Sludge can be sent through positive pressure batcher
To delivery pump, delivery pump proposed adoption hydraulic planger pump 10, pollutant carrying capacity is strong, it can be achieved that long distance delivery, every batcher are corresponding
1 hydraulic planger pump 10 is configured, is contributed as 15t/h, totally 2.Transfer pipeline uses the steel pipe of lined with ultra-high molecular polyethylene, defeated
Sending ability is 15t/h, and caliber is 200 mm.
A kind of mud decrement processing system of this programme, workflow are the sludge produced by sewage treatment plant, by sleeping
Water content is stored in sludge tank 15 80% or so after formula centrifuge, by tube shaped with sludge plunger pump 10 by sludge tank 15
Middle sludge is squeezed into steam explosion host 6, and the steam explosion host 6 in this programme uses QB-1000 type gas explosion machine, configuration boiler (electricity or combustion
Gas), pressurized sludge is heated using 230 ° of 2.5MPa saturated vapors.Abrupt release after pressure stabilizing 15 minutes, to complete primary
Explosion.Sludge after steam explosion dumps in process tank group, then sludge is extracted into separation of solid and liquid using slush pump by tube shaped
Solid-liquid analysis is realized in device, the vapor generated during steam explosion uses spray column condensing recovery.
The advantages of this programme is: whole system is set up using modularization is integrated, and pipeline, whole process is unattended, complete
It is complete intelligent.Entire technique is excessive without any solid, liquid, gas, and working environment is neatly orderly, effectively promotes water factory's integral loop
Border.Without manpower intervention, and occupied area is small, is suitble to the situation of current shortage of land resource.And do not have to raw sewage moisture content
Any requirement, 99%-40% water content sludge are applicable in.
Specifically, can be realized following target:
Minimizing: in sludge outside moisture removal, organic matter (fugitive constituent) content accounts for about 50 ~ 60%, and ash content accounts for about 40 ~ 45%, by vapour
Main component is ash content after quick-fried decrement.By taking the sludge of 1 ton of moisture content 80% as an example, only 200 kilograms of sludge are formed after steam explosion is reduced
Left and right, reduction rate have reached 80%.
Innoxious and stabilisation: it is not necessarily to add any chemical agent during steam explosion；Bacterium, pathogen in sludge etc. have
Evil pollutant is killed and is cracked at high temperature under high pressure；Foul smell in production process etc. can all divide after biology, chemical treatment
Solution；The moisture evaporated during sludge steam explosion is all absorbed through spray column absorption condensation.
Recycling: sludge incineration can utilize the heat of sludge itself to greatest extent, can be recycled needed for supplement Treatment of Sludge
Most of energy；Sludge burning ash residue is excellent building materials raw material, can be all of.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of mud decrement processing system, it is characterised in that: including sludge heating power steam explosion module, be separated by solid-liquid separation module, water steaming
Gas collection module, sludge, which are collected, recycles module and conveyor module, and the sludge heating power steam explosion module includes containing sludge
Sludge tank, steam, compressed air, steam explosion host and process tank group, the separation of solid and liquid module includes being connected to process tank group
Solid-liquid separator, the vapor collection module includes the vapor spray recovery tower connecting with steam explosion host, the sludge
It collects and module is recycled to connect with solid-liquid separator, the conveyor module includes pipeline and the conveying being arranged between modules
Machine.
2. a kind of mud decrement processing system according to claim 1, it is characterised in that: the process tank group is successively to connect
Hydrolytic decomposition pot, production gas tank and the quenched tank connect, is provided with screw pump between the steam explosion host and hydrolytic decomposition pot.
3. a kind of mud decrement processing system according to claim 1, it is characterised in that: the solid-liquid separator is filters pressing
Machine is provided with feed pump between the quenched tank and filter press.
4. a kind of mud decrement processing system according to claim 1, it is characterised in that: the conveyer is to be arranged in pipe
Positive-pressure spiral batcher in road.
5. a kind of mud decrement processing system according to claim 1, it is characterised in that: the sludge heating power steam explosion module
It is connected with sludge pretreatment module, the sludge pretreatment module includes horizontal centrifuge, sludge tank and is arranged in sludge tank
With the plunger pump between steam explosion host.
6. a kind of mud decrement processing system according to claim 1, it is characterised in that: the solid-liquid separator is connected with
Water recovery unit and mud recovery unit, the water recovery unit are connected to sewage plant by pipeline, and the water recovery unit is
Integrated sewage treating apparatus.
7. a kind of mud decrement treatment process, it is characterised in that: include the following steps,
(1), water content is stored in sludge tank, passes through conveying 80% after sludge to be treated is after horizontal centrifuge is dehydrated
System squeezes into the sludge in sludge tank in steam explosion host；
(2), steam explosion host computer temperature is 230 DEG C, the saturated vapor heating pressurized sludge that pressure is 2.5MPa, pressure stabilizing 15 minutes
Onepull is completed in abrupt release afterwards；
(3), the sludge after steam explosion dumps in process tank group, then sludge is extracted into solid-liquid point using slush pump by tube shaped
It is separated by solid-liquid separation from being realized in device；
(4), it is delivered to sewage plant after treatment by the generation water being separated by solid-liquid separation in the step (3), the mud of generation transports
It is recycled to power plant's incineration disposal or as building material.
8. mud decrement treatment process according to claim 7, it is characterised in that: the transportation system in the step (1)
It is conveyed by tube shaped using pressure, transportation system power output is 10t/h, the discharging ora switch device including delivery pump, connection
And feeding device, feeding device use positive-pressure spiral batcher, are fed using spiral and carry out precompressed, the positive-pressure spiral feed
Machine can send sludge to hydraulic planger pump.
9. mud decrement treatment process according to claim 8, it is characterised in that: the pipeline is poly- for lined with ultra-high molecular
The steel pipe of ethylene.
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| CN201910439741.2A CN110127981A (en) | 2019-05-24 | 2019-05-24 | Mud decrement processing system and its technique |
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| CN102586337A (en) * | 2012-03-13 | 2012-07-18 | 河南天冠生物燃料工程技术有限公司 | Method for utilizing agricultural and forestry waste containing cellulose, hemicellulose and lignin |
| CN104003597A (en) * | 2014-06-14 | 2014-08-27 | 济南米铎碳新能源科技有限公司 | Sludge steam explosion decomposition method and sludge steam explosion decomposition machine for implementing sludge steam explosion decomposition method |
| CN107002100A (en) * | 2014-10-29 | 2017-08-01 | 坎比科技公司 | Handle biomass and the method and apparatus of debirs |
| CN104744090A (en) * | 2015-03-25 | 2015-07-01 | 杨健 | Method and device for preparing novel ecological culture medium from municipal waste |
| CN106630513A (en) * | 2017-01-05 | 2017-05-10 | 新疆弘瑞达纤维有限公司 | Novel sludge pretreating method |
| CN208717638U (en) * | 2018-09-06 | 2019-04-09 | 北京观澜科技有限公司 | A kind of equipment for steam treatment and steam explosion equipment |
| CN109694173A (en) * | 2019-02-15 | 2019-04-30 | 清正生态科技(苏州)有限公司 | Sludge heavy-metal steam explosion removes system |
| CN210313974U (en) * | 2019-05-24 | 2020-04-14 | 江苏安识环境科技有限公司 | Sludge reduction treatment system |
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