CN110002707A - A kind of multistage technique for being heat-treated dry sludge - Google Patents
A kind of multistage technique for being heat-treated dry sludge Download PDFInfo
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- CN110002707A CN110002707A CN201910314386.6A CN201910314386A CN110002707A CN 110002707 A CN110002707 A CN 110002707A CN 201910314386 A CN201910314386 A CN 201910314386A CN 110002707 A CN110002707 A CN 110002707A
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- sludge
- water
- heat
- drying machine
- dry sludge
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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
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of multistage technique for being heat-treated dry sludge, include the following steps: to mix pyrolysis brokenly bubble into warm sludge water Step 1: at least one high-moisture-contensludge sludge is sent into level-one drying machine and fry；Step 2: the resulting warm sludge water of step 1 is sent into emulsifier unit and coolant liquid is added to destroy its toughness, it is then fed into dewaterer and is dehydrated, obtain water-containing sludge；Step 3: water-containing sludge and at least one low water-containing sludge to be sent into secondary drying machine together and be dried, dry sludge is obtained.The high-moisture-contensludge sludge of different water cut and low water-containing sludge can be placed on same production line and handle by the present invention, optimize treatment process, improve treatment effeciency, save equipment investment, reduce processing cost.
Description
Technical field
The present invention relates to technical field of sludge treatment, and in particular to a kind of multistage technique for being heat-treated dry sludge, especially
It is related to pyrolysis brokenly bubble, the emulsification, dehydration, drying process of sludge.
Background technique
Sludge is water pollutant, such as cannot thoroughly be handled it, pollution can always exist.Sludge shape is grey black,
Vesicle-containing body, wherein containing a large amount of protein organic matter, various strain pathogen.Sludge is shelved for a long time will lead to smelly, production of rotting
The poison gases such as raw methane, hydrogen sulfide, and bacterium, mosquitos and flies are bred, it spreads the disease, life threatening.In industrial sludge also containing heavy metal,
Chemicals pollutes water and soil, endangers environment.
Domestic and international early stage sludge treatment based on stacking, by sludge with pouring into rubber, vegetable plot, green land, hillside
In.This method ignores pollution hidden trouble, seriously threatens environmental quality.The processing of later sludge switchs to underground landfill by ground stockpiling,
Since what underground landfill needed takes up a large area, and develop other method for sludge treatment, such as burn.Filling sludge is once state
The method of the processing sludge inside generallyd use, most of producers once handle sludge in a manner of landfill.Sludge landfill place multiselect
In field depression, the watershed of this area, resident is rare, and natural ecology is preferably local.After filling sludge, Sludge landfill place is come
People is gradually rare.It is dirty caused by stink damp that landfill sludge issues, mosquitos and flies are more etc. however, with the expansion of people's scope of activities
Random difference ring border is unpleasant, causes Sludge landfill place nearby residents to government and complains problem of environmental pollution.Therefore, economical relatively to send out
Up to area, government pays much attention to and has set about research processing sludge landfill problem.
Then occur to Treatment of Sludge using whole closed, anhydration and incineration method, and to the vapor that desiccation generates
Condensing recovery recycling is carried out, adopting an effective measure prevents overall process odor pollution from leaking, and odorant pollutant is sent into boiler
Pyrolytic is carried out, the influence for reducing original to unit coal-fired coal quality and pulverized coal preparation system as far as possible is also needed.Coal fired power generation is coal dust
Torch firing technique, fire coal coupling sludge incineration power generation, first has to dry sludge, and dry moisture percentage in sewage sludge can be coupled in 35% right and left
Torch firing.
Current sludge source mainly include moisture content 80% or so high-moisture-contensludge sludge and moisture content 60% or so
Low water-containing sludge, the moisture content of two class sludge is inconsistent to cause it that can not be handled on same production line.
Summary of the invention
Goal of the invention of the invention is to provide a kind of multistage technique for being heat-treated dry sludge, can be by different water cut
High-moisture-contensludge sludge and low water-containing sludge are placed on same production line and are handled, and optimize treatment process, improve processing effect
Rate saves equipment investment, reduces processing cost.
To achieve the above object of the invention, the technical solution adopted by the present invention is that: a kind of multistage work for being heat-treated dry sludge
Skill includes the following steps:
Pyrolysis brokenly bubble is mixed into warm sludge water Step 1: at least one high-moisture-contensludge sludge is sent into level-one drying machine and fry；
Step 2: the resulting warm sludge water of step 1 is sent into emulsifier unit and coolant liquid is added to destroy its toughness, then
It is sent into dewaterer and is dehydrated, obtain water-containing sludge；
Step 3: water-containing sludge and at least one low water-containing sludge to be sent into secondary drying machine together and be dried, obtain
To dry sludge.
Above, the high-moisture-contensludge sludge refers to that sludge of the moisture content 80% or so, low water-containing sludge refer to containing
Tap water can be selected in sludge of the water rate 60% or so, coolant liquid.
In above-mentioned technical proposal, the level-one drying machine and secondary drying machine select hollow blade dryer.
In above-mentioned technical proposal, vapor (steam) temperature is 180~190 DEG C in the hollow blade drier.For the temperature of steam
Degree, the present invention is not specifically limited, and typical but non-limiting can be 180 DEG C, 181 DEG C, 182 DEG C, 183 DEG C, 184 DEG C, 185
℃,186℃,187℃,188℃,189℃,190℃.Preferably 187 DEG C.
In above-mentioned technical proposal, the steam in the step 1 is passed through in level-one drying machine after steady pressure treatment；
Steam in the step 3 is passed through in secondary drying machine after steady pressure treatment.
In above-mentioned technical proposal, the steam selects industrial boiler steam.
In above-mentioned technical proposal, in the step 2, the moisture content of the water-containing sludge is 65~70%.
In above-mentioned technical proposal, the low water-containing sludge in the step 3 is cake bulk sludge.
In above-mentioned technical proposal, in the step 3, the moisture content of the dry sludge is 35~40%.
In above-mentioned technical proposal, in the step 3, it is also passed through hot wind in secondary drying machine and carries out auxiliary drying.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
1. the present invention is aqueous with low water-containing sludge by successively carrying out high-moisture-contensludge sludge to obtain after brokenly bubble, emulsification, dehydration
The close water-containing sludge of rate, then be dried together with low water-containing sludge, it can be by the high-moisture-contensludge sludge of different water cut
It is placed on same production line and is handled with low water-containing sludge, optimize treatment process, improve treatment effeciency, save and set
Standby investment, reduces processing cost；
2. the resulting dry sludge of the present invention can be conveyed to power plant and coal-fired coupling combustion generates electricity, the resource of sludge is realized
Change and utilizes.
Detailed description of the invention
Fig. 1 is the process flow chart of the embodiment of the present invention one.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment one:
Shown in Figure 1, a kind of multistage technique for being heat-treated dry sludge includes the following steps:
Pyrolysis brokenly bubble is mixed into warm sludge water Step 1: at least one high-moisture-contensludge sludge is sent into level-one drying machine and fry；
Step 2: the resulting warm sludge water of step 1 is sent into emulsifier unit and coolant liquid is added to destroy its toughness, then
It is sent into dewaterer and is dehydrated, obtain water-containing sludge；
Step 3: water-containing sludge and at least one low water-containing sludge to be sent into secondary drying machine together and be dried, obtain
To dry sludge.
In the present embodiment, vapor (steam) temperature is 187 DEG C or so in the level-one drying machine and secondary drying machine.
When equipment is installed, steam is first introduced, steam respectively enters level-one drying machine and two after stable-pressure device steady pressure treatment
In grade drying machine, wherein the level-one drying machine and secondary drying machine are selected and done with the hollow blade that steam is thermally conductive charge material
Dry machine.In addition, the steam selects Boiler Steam, it is dried after also there are substantially 130 DEG C of temperature of steam to return in boiler.
In the present embodiment, in the step 2, the moisture content of obtained water-containing sludge is 65~70%, and moisture content is close
The moisture content of low water-containing sludge, thus can be sent into secondary drying machine and be dried together with low water-containing sludge.
In the present embodiment, low water-containing sludge in the step 3 is cake bulk sludge, moisture content 60%, need to be into
Row is broken dry.
In the present embodiment, in the step 3, the moisture content of the drying sludge handled is 35~40%.
In the present embodiment, in the step 3, it is also passed through hot wind in secondary drying machine and carries out auxiliary drying.Specifically,
Hot air inlet is added in the mud inlet of secondary drying machine, by hot air inlet to being passed through hot wind in secondary drying machine.
The invention further relates to two sludge storage bin storing and transporting systems, one, for storing and transporting high-moisture-contensludge sludge, is pacified
The side at the sludge inlet of level-one drying machine, connection high-moisture-contensludge sludge feeding, pyrolysis brokenly bubble, emulsification, dehydration, dry system
System；One, for storing and transporting low water-containing sludge, is mounted on side at the sludge inlet of secondary drying machine, connects low aqueous
Sludge dry system.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
A variety of modifications of above-described embodiment will be readily apparent to those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to above-described embodiment shown in this article, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (8)
1. a kind of multistage technique for being heat-treated dry sludge, which comprises the steps of:
Pyrolysis brokenly bubble is mixed into warm sludge water Step 1: at least one high-moisture-contensludge sludge is sent into level-one drying machine and fry；
Step 2: the resulting warm sludge water of step 1 is sent into emulsifier unit and coolant liquid is added to destroy its toughness, it is then fed into
It is dehydrated in dewaterer, obtains water-containing sludge；
Step 3: water-containing sludge and at least one low water-containing sludge to be sent into secondary drying machine together and be dried, done
Dry sludge.
2. the multistage technique for being heat-treated dry sludge according to claim 1, it is characterised in that: the level-one drying machine and
Secondary drying machine selects hollow blade dryer.
3. the multistage technique for being heat-treated dry sludge according to claim 2, it is characterised in that: the hollow blade is dry
Vapor (steam) temperature is 180~190 DEG C in machine.
4. the multistage technique for being heat-treated dry sludge according to claim 3, it is characterised in that: the steam selects industry
Boiler Steam.
5. the multistage technique for being heat-treated dry sludge according to claim 1, it is characterised in that: in the step 2, institute
The moisture content for stating water-containing sludge is 65~70%.
6. the multistage technique for being heat-treated dry sludge according to claim 1, it is characterised in that: low in the step 3
Water-containing sludge is cake bulk sludge.
7. the multistage technique for being heat-treated dry sludge according to claim 1, it is characterised in that: in the step 3, institute
The moisture content for stating dry sludge is 35~40%.
8. the multistage technique for being heat-treated dry sludge according to claim 1, it is characterised in that: in the step 3, also
It is passed through hot wind at the mud inlet of secondary drying machine and carries out auxiliary drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910314386.6A CN110002707A (en) | 2019-04-18 | 2019-04-18 | A kind of multistage technique for being heat-treated dry sludge |
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| CN201910314386.6A CN110002707A (en) | 2019-04-18 | 2019-04-18 | A kind of multistage technique for being heat-treated dry sludge |
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| CN110002707A true CN110002707A (en) | 2019-07-12 |
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| CN101041542A (en) * | 2007-03-05 | 2007-09-26 | 同济大学 | Sludge phase-splitting slaking method of water treatment plant |
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| CN101830621A (en) * | 2010-04-13 | 2010-09-15 | 广州珞珈环境技术有限公司 | Sewage and sludge drying and fueling treatment system and process |
| CN102153267A (en) * | 2011-04-15 | 2011-08-17 | 复旦大学 | Method for modifying and dewatering sludge |
| CN103539326A (en) * | 2013-09-30 | 2014-01-29 | 珠海市伟力高生物科技有限公司 | Method for comprehensive treatment of sludge |
| CN105670657A (en) * | 2016-02-01 | 2016-06-15 | 苏州市自力化工设备有限公司 | Harmless and resourceful treatment method for municipal sludge |
| CN105819665A (en) * | 2015-01-07 | 2016-08-03 | 广州新致晟环保科技机械设备有限公司 | Sludge drying system and sludge drying method |
| CN106517727A (en) * | 2016-12-26 | 2017-03-22 | 南昌航空大学 | Sludge two-grade united energy-saving drying device and method |
| CN108249730A (en) * | 2018-01-22 | 2018-07-06 | 李兴 | The processing system and processing method of a kind of sludge |
| CN109020132A (en) * | 2018-08-22 | 2018-12-18 | 李兴 | A kind of pyrolyzing sludge drying process system and method |
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2019
- 2019-04-18 CN CN201910314386.6A patent/CN110002707A/en active Pending
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| US4076515A (en) * | 1975-07-09 | 1978-02-28 | Rickard M David | Method for treatment of digester supernatant and other streams in wastewater treatment facilities |
| EP0829457A2 (en) * | 1996-09-11 | 1998-03-18 | Binder & Co. Aktiengesellschaft | Process and device for drying sludge |
| CN101041542A (en) * | 2007-03-05 | 2007-09-26 | 同济大学 | Sludge phase-splitting slaking method of water treatment plant |
| CN101565263A (en) * | 2009-05-21 | 2009-10-28 | 山东天力干燥设备有限公司 | Sludge superheated vapor drying system of two-stage paddle dryer and drying process thereof |
| CN101830621A (en) * | 2010-04-13 | 2010-09-15 | 广州珞珈环境技术有限公司 | Sewage and sludge drying and fueling treatment system and process |
| CN102153267A (en) * | 2011-04-15 | 2011-08-17 | 复旦大学 | Method for modifying and dewatering sludge |
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| CN105819665A (en) * | 2015-01-07 | 2016-08-03 | 广州新致晟环保科技机械设备有限公司 | Sludge drying system and sludge drying method |
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Application publication date: 20190712 |
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