CN106746468A - A kind of sludge treating system and handling process - Google Patents
A kind of sludge treating system and handling process Download PDFInfo
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- CN106746468A CN106746468A CN201710061232.1A CN201710061232A CN106746468A CN 106746468 A CN106746468 A CN 106746468A CN 201710061232 A CN201710061232 A CN 201710061232A CN 106746468 A CN106746468 A CN 106746468A
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- sludge
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- stove
- outlet
- charcoal
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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
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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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
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
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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
- 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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
Abstract
The present invention relates to a kind of sludge treating system and handling process, belong to water-treatment technology field.The technique is by sludge first through sludge concentration tank stabilization shale mud amount;Sludge broken wall is carried out by adding for conditioner into sludge conditioning pond afterwards;It is 55% ~ 60% then to enter high-pressure machinery plate and frame filter press press filtration to moisture content;Drying sludge stove is subsequently entered, after the low-temperature flue gas that Sludge carbonization furnace is produced carry out indirectly heat exchange, it is less than 10% that dewatered sludge is dried into water content;Sludge carbonization furnace is entered back into, the high-temperature flue gas produced by burning hot-blast stove will dry pyrolyzing sludge and produce charcoal and tail gas;The tail gas that drying sludge stove and Sludge carbonization furnace are produced enters tail gas purification tower and purifies and separate, and the fuel gas and waste oil of generation are extremely burned and burned in hot-blast stove;Charcoal is comprehensively utilized.The present invention can it is economical, sludge of sewage treatment plant is efficiently processed, so as to the comprehensive utilization of sludge of sewage treatment plant can be realized.
Description
Technical field
The invention belongs to water-treatment technology field, and in particular to a kind of sludge treating system and handling process, more particularly to
The processing system and handling process of the sludge that a kind of sewage treatment plant produces in water treatment procedure.
Background technology
With the development that wastewater treatment in China works, water pollution problems has obtained effective alleviation, but sewage plant sludge yield
It is increasing.Sludge quantity account for sewage quantity 0.3%~0.5% (volume) or sewage load 1%~2%, if carried out
Advanced treating, sludge quantity can increase by 0.5~1 times.Because sludge disposal technology difficulty is high, investment big, return the factor such as uncertain,
The country set foot in this field enterprise is few and small scale, gap is larger compared with external advanced country.At the existing sewage of China
Reason facility in, have sludge stabilization treatment facility less than 25%, handling process and corollary equipment it is perfect less than 10%.Sludge
Phase feature is:(1) content of beary metal is high, and 50% heavy metal is transferred in sludge in sewage disposal process;(2) organic matter and N, P
Content is high, and between 25%~50%, between 2%~5%, P content is between 0.5%~2% for N content for the content of organic matter;
(3) calorific value is high, and calorific value can reach 9MJ/KG~20MJ/KG (sludge dry base heat value).At present, Treatment of Sludge and resource new technology
Research turned into the hot research topic that domestic and international environmental worker is extremely concerned about.
At present, the treatment technology of domestic existing sludge has following 4 kinds:
(1) sanitary landfills
The sanitary landfills of sludge has evolved into a Sludge Disposal Techniques for comparative maturity at present.Its advantage is investment
Less, capacity is big, instant effect.Basic mode is municipal sludge by simple dehydration and sterilization treatment, be directly poured into landfill yard,
Low land or valley floor manufacture of intraocular Plain.Its sludge disposal technology requirement to early stage is relatively low, typically carries out digestion volume reduction or allows it
Natural desiccation.Therefore it needs the place of large area and substantial amounts of freight, and ground need to make Anti-seeping technology in order to avoid dirty
Dye underground water, therefore Sludge landfill disposal proportion is less and less in recent years, because landfill can not finally avoid environmental pollution,
And simply delayed generation time.
(2) burn
Burn the purpose up to decrement to greatest extent.Burning can destroy whole organic matters, kill all pathogen.If city
City's hygienic requirements is high or sludge levels of toxic substances is high, then sludge can be made to recycle, but sludge itself combustion heat value compared with
When big, can be processed using incinerating method.But the ash content after sludge incineration, there is presently no rational processing method.Burn
During produce flue gas can also cause secondary pollution.Additionally, sludge incineration treatment consumes mass energy, uneconomical and cost is high
It is expensive.
(3) anaerobic digestion
Anaerobic digestion makes the organic matter in sludge decompose and tend towards stability using the decomposition of anaerobe.Anaerobism
Digestion is usually in closed digestive shelf, to be store at 30 DEG C and stopped 30 days or so, mainly by facultative anaerobic bacteria and anaerobism
The effect of bacterium decomposes organic matter, ultimately generates the biogas based on methane.Anaerobic Digestion can reach mud decrement
Purpose, and a part of energy can be reclaimed, also for subsequent treatment reduces the heavy burdens.But digestion after moisture percentage in sewage sludge it is higher, still need into
One step is dehydrated.
(4) compost
Compost is the process fermented using the microorganism in sludge.Added in sludge a certain proportion of leavening agent and
Conditioner (such as straw, straw, wood chip or house refuse), is entered to gas chromatography in wet condition using microbiologic population
Row oxidation Decomposition is simultaneously converted into humic-like substance.Sludge quality by compost is loose, cation exchange capacity (CEC) (CEC) dramatically increases,
Unit weight reduction, the nutritional ingredient that can be utilized by plant increase, pathogen and parasitic ovum are almost killed entirely.But sludge after compost
The heavy metals such as middle arsenic, copper, chromium, mercury and poisonous and harmful substance cannot be removed, and easily cause the transfer of pollutant.
Several typical sludge treatment process engineering application lists both at home and abroad are as shown in table 1.
Table 1
In order to more right combination is using the organic matter and its calorific value in sludge, a huge sum of money in sludge handling process is particularly solved
The problem that category content is high, investment cost is high, complex management, operating cost are high.Must using disclosure satisfy that it is more advanced, more economical,
More efficient landfill percolate treatment novel process.Therefore how to overcome the deficiencies in the prior art be current water-treatment technology field urgently
The problem that need to be solved.
The content of the invention
The invention aims to solve the deficiencies in the prior art, there is provided a kind of sludge treating system and handling process,
Present invention process is directly processed sludge using materialization, drying, charring process combination, can reach recycling.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of sludge treating system, including sludge concentration tank, sludge conditioning pond, high-pressure machinery plate and frame filter press, sludge do
Dry stove, Sludge carbonization furnace, charcoal cooling device, conditioner medicine system, burn hot-blast stove, tail gas purification tower, exhaust fan,
Gas tank and oil water separator;
The sludge outlet of described sludge concentration tank is connected with the sludge import in sludge conditioning pond by pipeline;Conditioner adds
The dosing outlet of medicine system is connected with the dosing mouth in sludge conditioning pond by pipeline;The sludge outlet and high-pressure unit in sludge conditioning pond
The entrance of tool plate and frame filter press is connected by pipeline;The sludge outlet of high-pressure machinery plate and frame filter press and the sludge of drying sludge stove
Entrance is connected by pipeline;The sludge outlet of drying sludge stove is connected with the sludge inlet of Sludge carbonization furnace by pipeline;Sludge
The charcoal outlet of retort is connected with charcoal cooling device by pipeline;
The exhanst gas outlet for burning hot-blast stove is connected with the air inlet of Sludge carbonization furnace by pipeline;
The gas outlet of Sludge carbonization furnace is connected with the air inlet of drying sludge stove by pipeline;
The gas outlet of drying sludge stove is connected with the air inlet of tail gas purification tower by pipeline;
The fuel gas outlet of tail gas purification tower is connected with the air inlet of exhaust fan by pipeline;The air-out of exhaust fan
Mouth is connected with the air inlet of gas tank by pipeline;The gas outlet of gas tank passes through pipeline phase with the air inlet for burning hot-blast stove
Even;
The oily waste water outlet of tail gas purification tower is connected with the water inlet of oil water separator by pipeline;Oil water separator
Waste oil is exported and is connected by pipeline with the oil inlet for burning hot-blast stove.
The present invention also provides a kind of sludge treatment technique, using above-mentioned sludge treating system, comprises the following steps:
Step (1), the sludge that sewage treatment plant produces in water treatment procedure stable shale mud in entering sludge concentration tank
Measure and make its moisture content to reach 98%~99%, sludge enters sludge conditioning pond afterwards, and tune is added by conditioner medicine system
There is shell-broken effect in reason agent to sludge flco and sludge cell membrane;
Step (2), the sludge that will be obtained through step (1) conditioning enters high-pressure machinery plate and frame filter press press filtration to moisture content and drops
As little as 55%~60%, obtain dewatered sludge;
Step (3), step (2) is obtained dewatered sludge feeding drying sludge stove in, using Sludge carbonization furnace conveying come
Temperature be that 359 DEG C~400 DEG C of low-temperature flue gas are dried, it is less than 10% to dry to sludge moisture content;
Step (4), through step (3) dry sludge enter Sludge carbonization furnace in, by burn hot-blast stove convey come temperature
Spend for 700 DEG C~800 DEG C high-temperature flue gas are pyrolyzed, will be through step (3) dry pyrolyzing sludge into tail gas and charcoal;
Step (5), the charcoal that step (4) is obtained into being cooled down in charcoal cooling device, be cooled to 40 DEG C~
50℃;Charcoal pack after cooling is transported and comprehensively utilized;
Step (6), the tail gas produced in drying sludge stove enters in tail gas purification tower, using the method for wet method depickling to entering
Row tail gas clean-up, obtains fuel gas and oily waste water;
Step (7), the fuel gas that step (6) is obtained is entered in gas tank by exhaust fan, and supply is to burning afterwards
Wind furnace is heated to be burned;The oily waste water that step (6) is obtained carries out water-oil separating by oil water separator, the waste oil after separation
Feeding is burned hot-blast stove and carries out burning disposal, and waste water is then discharged to Sewage Plant and is processed.
It is further preferred that described charcoal cooling device is cooled down using cooling circulating water to charcoal.
It is further preferred that described conditioner is a kind of or several in polyacrylamide, poly-ferric chloride and flyash
The mixture planted.When for mixture, the ratio between each component is not required.Conditioner of the present invention is not limited to
This, conventional use of sewage conditioner in this area.
Drying sludge stove:Indirectly heat exchange is carried out by the low-temperature flue gas and sludge that burn hot-blast stove to burn and produce, will
By the body of heater that the sludge after the dehydration of high-pressure machinery plate and frame filter press is dried.
Sludge carbonization furnace:Indirectly heat exchange is carried out by the high-temperature flue gas and sludge that burn hot-blast stove to burn and produce, will
By the body of heater that dried sludge is pyrolyzed.
Burn hot-blast stove:By burning fuel gas, Sludge carbonization furnace that natural gas, drying sludge stove drying process are produced
The body of heater that waste oil after the fuel gas of pyrolytic process generation and separation is burned.
Tail gas purification tower:The tower body that the flue gas that drying sludge stove and Sludge carbonization furnace are produced is purified and be separate.
Waste oil is recycled in the present invention, with good economic benefit, but Land use systems not limited to this.
From the fuel gas of gas tank discharge, be passed through burning hot-blast stove carries out burning disposal, produced high temperature to the present invention
Flue gas is first passed through the space between the roller of Sludge carbonization furnace and external thermal insulation, and dewatered sludge heating is carbonized into charcoal through roller;It
Afterwards from the low-temperature flue gas of Sludge carbonization furnace discharge, then the space between the roller and external thermal insulation of drying sludge stove is passed through, will through roller
Dewatered sludge is heating and drying into dewatered sludge;Gas up to standard produced by last is discharged in air.
Processing method with landfill and anaerobism or composting process after conventionally employed mechanical dehydration compares, and the present invention has following
Remarkable advantage and effect:
1st, using sludge organism wall-breaking method and high-pressure machinery plate compression mode, moisture content is less than after making sludge dewatering
60% and increase without other chemical agents, it is ensured that the reduction of the moisture content of sludge and pollutant controllability.
2nd, the dehydration of depth is carried out to sludge using drying sludge furnace apparatus (temperature 350~400 DEG C between), contains sludge
Water rate is reduced to less than 10%, so as to reduce sludge carbonization stage energy consumption.
3rd, sludge carbonization is carried out using sludge carbonization furnace apparatus (temperature 700~800 DEG C between), reduces moisture percentage in sewage sludge
To less than 5% so as to realize minimizing and the resource of sludge.
4th, at the flue gas for being produced to drying sludge stove and Sludge carbonization furnace using tail gas purification tower and oil water separator
Reason and collection, it is ensured that the recovery of the environment protection standard and available resources of flue gas.
5th, the fuel gas that sludge carbonization section is produced is reclaimed and is burnt using gas tank and hot-blast stove, reduced sludge
Dry and carbonization stage energy consumption.
6th, present invention process method can realize the recycling of sludge, preserve the ecological environment, and be the place of sewage plant sludge
Put and solve critical problem.
The carbonization technique of present system is analyzed with existing sludge treatment technique, as shown in table 1.
Table 1
Brief description of the drawings
Fig. 1 is the structural representation of sludge treating system of the present invention.
Wherein, 1, sludge concentration tank;2nd, sludge conditioning pond;3rd, high-pressure machinery plate and frame filter press;4th, drying sludge stove;5th, it is dirty
Paludification stove;6th, charcoal cooling device;7th, conditioner medicine system;8th, hot-blast stove is burned;9th, tail gas purification tower;10th, tail gas
Blower fan;11st, gas tank;12nd, oil water separator;;
Specific embodiment
With reference to embodiment, the present invention is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate the present invention, and should not be regarded as limiting this hair
Bright scope.In the examples where no specific technique or condition is specified, according to the technology or condition described by document in the art
Or carried out according to product description.Equipment therefor or the unreceipted production firm person of material, being can be by buying what is obtained
Conventional products.
As shown in figure 1, a kind of sludge treating system, including sludge concentration tank 1, sludge conditioning pond 2, high-pressure machinery sheet frame pressure
Filter 3, drying sludge stove 4, Sludge carbonization furnace 5, charcoal cooling device 6, conditioner medicine system 7, burning hot-blast stove 8, tail
Gas purifying column 9, exhaust fan 10, gas tank 11 and oil water separator 12;
The sludge outlet of described sludge concentration tank 1 is connected with the sludge import in sludge conditioning pond 2 by pipeline;Conditioner
The dosing outlet of medicine system 7 is connected with the dosing mouth in sludge conditioning pond 2 by pipeline;The sludge outlet in sludge conditioning pond 2 with
The entrance of high-pressure machinery plate and frame filter press 3 is connected by pipeline;The sludge outlet and drying sludge of high-pressure machinery plate and frame filter press 3
The sludge inlet of stove 4 is connected by pipeline;The sludge outlet of drying sludge stove 4 is with the sludge inlet of Sludge carbonization furnace 5 by pipe
Road is connected;The charcoal outlet of Sludge carbonization furnace 5 is connected with charcoal cooling device 6 by pipeline;
The exhanst gas outlet for burning hot-blast stove 8 is connected with the air inlet of Sludge carbonization furnace 5 by pipeline;
The gas outlet of Sludge carbonization furnace 5 is connected with the air inlet of drying sludge stove 4 by pipeline;
The gas outlet of drying sludge stove 4 is connected with the air inlet of tail gas purification tower 9 by pipeline;
The fuel gas outlet of tail gas purification tower 9 is connected with the air inlet of exhaust fan 10 by pipeline;Exhaust fan 10
Air outlet be connected by pipeline with the air inlet of gas tank 11;The gas outlet of gas tank 11 and the air inlet for burning hot-blast stove 8
It is connected by pipeline;
The oily waste water outlet of tail gas purification tower 9 is connected with the water inlet of oil water separator 12 by pipeline;Water-oil separating
The waste oil outlet of device 12 is connected with the oil inlet for burning hot-blast stove 8 by pipeline.
A kind of sludge treatment technique, above-mentioned sludge treating system, comprises the following steps:
Step (1), the sludge that sewage treatment plant produces in water treatment procedure stable shale mud in entering sludge concentration tank 1
Measure and make its moisture content to reach 98%~99%, sludge enters sludge conditioning pond 2 afterwards, is added by conditioner medicine system 7
There is shell-broken effect in conditioner to sludge flco and sludge cell membrane;
Step (2), the sludge that will be obtained through step (1) conditioning enters the press filtration of high-pressure machinery plate and frame filter press 3 to moisture content
55%~60% is reduced to, dewatered sludge is obtained;
Step (3), in the dewatered sludge feeding drying sludge stove 4 that step (2) is obtained, is conveyed using Sludge carbonization furnace 5
The temperature come is that 359 DEG C~400 DEG C of low-temperature flue gas are dried, and it is less than 10% to dry to sludge moisture content;
Step (4), through step (3) dry sludge enter Sludge carbonization furnace 5 in, by burn hot-blast stove 8 convey come
Temperature is pyrolyzed for 700 DEG C~800 DEG C high-temperature flue gas, will be through step (3) dry pyrolyzing sludge into tail gas and charcoal;
Step (5), the charcoal that step (4) is obtained into being cooled down in charcoal cooling device 6, be cooled to 40 DEG C~
50℃;Charcoal pack after cooling is transported and comprehensively utilized;
Step (6), the tail gas produced in drying sludge stove 4 enters in tail gas purification tower 9, using the method pair of wet method depickling
Tail gas clean-up is carried out, fuel gas and oily waste water is obtained;
Step (7), the fuel gas that step (6) is obtained by exhaust fan 10 enter gas tank 11 in, supply afterwards to
Burned with hot-blast stove 8 is burned;The oily waste water that step (6) is obtained carries out water-oil separating by oil water separator 12, separates
Waste oil feeding afterwards burns hot-blast stove 8 carries out burning disposal, and waste water is then discharged to Sewage Plant and is processed.
Preferred embodiment, described charcoal cooling device is cooled down using cooling circulating water to charcoal.It is described
Conditioner be the mixture of one or more in polyacrylamide, poly-ferric chloride and flyash.When for mixture, each group
/ ratio do not require.Conditioner not limited to this of the present invention, conventional use of sewage conditioning in this area
Agent.
General principle of the invention, principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (4)
1. a kind of sludge treating system, it is characterised in that including sludge concentration tank(1), sludge conditioning pond(2), high-pressure machinery plate
Frame filter press(3), drying sludge stove(4), Sludge carbonization furnace(5), charcoal cooling device(6), conditioner medicine system(7)、
Burn hot-blast stove(8), tail gas purification tower(9), exhaust fan(10), gas tank(11)And oil water separator(12);
Described sludge concentration tank(1)Sludge outlet and sludge conditioning pond(2)Sludge import by pipeline be connected;Conditioner
Medicine system(7)Dosing outlet and sludge conditioning pond(2)Dosing mouth by pipeline be connected;Sludge conditioning pond(2)Sludge
Outlet and high-pressure machinery plate and frame filter press(3)Entrance by pipeline be connected;High-pressure machinery plate and frame filter press(3)Sludge outlet
With drying sludge stove(4)Sludge inlet by pipeline be connected;Drying sludge stove(4)Sludge outlet and Sludge carbonization furnace(5)
Sludge inlet by pipeline be connected;Sludge carbonization furnace(5)Charcoal outlet with charcoal cooling device(6)By pipeline phase
Even;
Burn hot-blast stove(8)Exhanst gas outlet and Sludge carbonization furnace(5)Air inlet by pipeline be connected;
Sludge carbonization furnace(5)Gas outlet and drying sludge stove(4)Air inlet by pipeline be connected;
Drying sludge stove(4)Gas outlet and tail gas purification tower(9)Air inlet by pipeline be connected;
Tail gas purification tower(9)Fuel gas outlet and exhaust fan(10)Air inlet by pipeline be connected;Exhaust fan
(10)Air outlet and gas tank(11)Air inlet by pipeline be connected;Gas tank(11)Gas outlet with burn hot-blast stove
(8)Air inlet by pipeline be connected;
Tail gas purification tower(9)Oily waste water outlet and oil water separator(12)Water inlet by pipeline be connected;Water-oil separating
Device(12)Waste oil outlet with burn hot-blast stove(8)Oil inlet by pipeline be connected.
2. a kind of sludge treatment technique, using the sludge treating system described in claim 1, it is characterised in that including following step
Suddenly:
Step(1), the sludge that sewage treatment plant produces in water treatment procedure enters sludge concentration tank(1)Middle stabilization shale mud amount
And its moisture content is reached 98% ~ 99%, sludge enters sludge conditioning pond afterwards(2), by conditioner medicine system(7)Add tune
There is shell-broken effect in reason agent to sludge flco and sludge cell membrane;
Step(2), will be through step(1)The sludge that conditioning is obtained enters high-pressure machinery plate and frame filter press(3)Press filtration to moisture content drops
As little as 55% ~ 60%, obtain dewatered sludge;
Step(3), by step(2)The dewatered sludge feeding drying sludge stove for obtaining(4)In, using Sludge carbonization furnace(5)Conveying
The temperature come is dried for 359 DEG C ~ 400 DEG C of low-temperature flue gas, and it is less than 10% to dry to sludge moisture content;
Step(4), through step(3)Dry sludge enters Sludge carbonization furnace(5)In, by burning hot-blast stove(8)What conveying came
Temperature is pyrolyzed for 700 DEG C ~ 800 DEG C high-temperature flue gas, will be through step(3)Dry pyrolyzing sludge is into tail gas and charcoal;
Step(5), step(4)The charcoal for obtaining enters charcoal cooling device(6)In cooled down, be cooled to 40 DEG C ~ 50
℃;Charcoal pack after cooling is transported and comprehensively utilized;
Step(6), drying sludge stove(4)The tail gas of middle generation enters tail gas purification tower(9)In, using the method pair of wet method depickling
Tail gas clean-up is carried out, fuel gas and oily waste water is obtained;
Step(7), step(6)The fuel gas for obtaining passes through exhaust fan(10)Into gas tank(11)In, supply afterwards to
With burning hot-blast stove(8)Burned;Step(6)The oily waste water for obtaining passes through oil water separator(12)Carry out water-oil separating,
Waste oil feeding after separation burns hot-blast stove(8)Burning disposal is carried out, waste water is then discharged to Sewage Plant and is processed.
3. sludge treatment technique according to claim 2, it is characterised in that described charcoal cooling device(6)Using
Cooling circulating water carries out heat exchange to cool down with charcoal.
4. sludge treatment technique according to claim 2, it is characterised in that described conditioner is polyacrylamide, poly-
Close the mixture of one or more in iron chloride and flyash.
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CN108409083A (en) * | 2018-04-08 | 2018-08-17 | 西北民族大学 | A kind of city sewage and sludge pyrolysis treatment systems |
CN108484121A (en) * | 2018-06-12 | 2018-09-04 | 蔡梦君 | Centralized making brick from sludge pretreating device |
CN108569836A (en) * | 2018-05-09 | 2018-09-25 | 中国科学院城市环境研究所 | A kind of the dehydration stabilization method and device of chromium-bearing sludge |
CN108947200A (en) * | 2018-07-23 | 2018-12-07 | 安徽省通源环境节能股份有限公司 | A kind of modified deep dehydration of sludge conditioning and desiccation charing process technique |
CN109210548A (en) * | 2017-07-04 | 2019-01-15 | 王伟 | A kind of totally-enclosed calcining and activating bactericidal unit and its application method |
CN109574449A (en) * | 2018-12-19 | 2019-04-05 | 付井林 | A kind of dewatering of excess sludge |
CN109652091A (en) * | 2019-01-29 | 2019-04-19 | 北京云水浩瑞环境科技有限公司 | The system and method for preparing soil conditioner using sludge and kitchen garbage |
CN109652090A (en) * | 2019-01-29 | 2019-04-19 | 北京云水浩瑞环境科技有限公司 | The system and method for soil conditioner is prepared using sludge and biomass |
CN111333295A (en) * | 2020-02-19 | 2020-06-26 | 西安理工大学 | Electrochemical process method for promoting deep dehydration of sludge |
CN111678152A (en) * | 2020-06-29 | 2020-09-18 | 山东龙之源节能环保科技有限公司 | Indirect sludge drying and incinerating system and drying and incinerating method thereof |
CN113998866A (en) * | 2021-10-29 | 2022-02-01 | 广东尚鼎环境科技有限公司 | Organic solid waste treatment system and treatment process thereof |
CN114133126A (en) * | 2021-12-17 | 2022-03-04 | 天津壹新环保工程有限公司 | Sludge carbonization treatment system and method |
CN115490411A (en) * | 2022-11-21 | 2022-12-20 | 广东昕旺环保科技发展有限公司 | Sludge treatment agent and sludge treatment process |
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