CN107417068A - A kind of new sludge treatment technique - Google Patents
A kind of new sludge treatment technique Download PDFInfo
- Publication number
- CN107417068A CN107417068A CN201710762002.8A CN201710762002A CN107417068A CN 107417068 A CN107417068 A CN 107417068A CN 201710762002 A CN201710762002 A CN 201710762002A CN 107417068 A CN107417068 A CN 107417068A
- Authority
- CN
- China
- Prior art keywords
- sludge
- brick
- drying
- desiccation
- spray system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/132—Waste materials; Refuse; Residues
- C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of new sludge treatment technique, comprise the following steps：1) sludge drying is carried out by hollow blade dryer, the sludge after desiccation mixes with brick-making raw material；The hollow blade dryer carries out steam circulation heating by waste heat boiler；2) caused tail gas passes through dust removal process in mud drying process, and obtained dust mixes with brick-making raw material together with the sludge after desiccation；3) tail gas after dust removal process carries out spray process by spray system；The spray system uses circulating water pool；4) tail gas after spray process is sent into the burning of tunnel type brickkiln, the circulating water pool of the return of waste water that condensation process obtains to spray system after carrying out condensation process；5) flue gas after the burning of tunnel type brickkiln is first used for waste heat boiler heating in step 1), is used further to drying type brickkiln and carries out fragment of brick drying and processing, subsequent flue gas is discharged by chimney；6) sludge that the water in the circulating water pool of spray system is used in step 1) after desiccation is mixed with brick-making raw material.
Description
Technical field
The present invention relates to technical field of sludge treatment, more particularly to a kind of new sludge treatment technique.
Background technology
Sludge is a kind of heterogeneous body being made up of organic debris, bacterial body, inorganic particle and colloid etc..It is difficult to pass through
Sedimentation carries out thoroughly separation of solid and liquid.The general objective of Treatment of Sludge is to ensure that the poisonous and harmful substance in sludge, either now
Or will not all unacceptable harm be caused to the mankind and environment in the future.
At present, substantial amounts of sludge fails to obtain rationally processing disposal in time and turns into sewage treatment plant's white elephant.
It is most thoroughly processing method with the processing method burned as core, sludge drying process is used before burning process
The minimizing of sludge can be realized, sludge calorific value is improved, saves the expense of follow-up burning disposal, and reaches more excellent burning effect
Fruit.Sludge after the desiccation caused grey volume after high temperature incineration will reduce more than 90%, and toxic organic compound thermal decomposition is thorough, burns
Burn and produce energy recoverable, ash, slag can use as building material.
The advantages of sludge drying：Sludge after desiccation can significantly reduce volume compared with wet mud, so as to reduce
Storage area.By taking the wet mud of moisture content 85% as an example, during desiccation to moisture content 40%, volume can be reduced to original 1/4, dirty
The shape of mud turns into particle, is advantageous to further work-up.
In sludge drying mode, there is the advantages of unique using the hollow blade formula desiccation machine of steam：
(1) thermal source uses low pressure (0.5MPa) steam, and steam does not contact with sludge, and recyclable circulate makes after steam condensation
With.
(2) compact equipment, floor space are small.
(3) heat utilization ratio is high.
(4) gas treatment amount is small.
(5) moisture percentage in sewage sludge change is suitable for, product desiccation uniformity is high.
But to burn processing method for core, it is necessary to larger early investment, while operating cost is also higher, therefore
Must government there is higher sludge treatment allowance to maintain normal operation；This is resulted in economic level and underdeveloped
Area is more difficult to be used to burn the processing method disposing sludge for core.
It is a kind of effective ways by recycling sludge using making brick from sludge, is ground for the making brick from sludge technology country
Study carefully, also there are many domestic patent applications.
As Chinese invention patent application prospectus CN104649650A discloses a kind of new making brick from sludge technique；Should
Technique is brickmaking after directly wet mud is mixed with brick-making raw material, and its shortcoming is that sludge treatment capacity is substantially insufficient.
Residual heat of tunnel kiln desiccation is utilized as Chinese invention patent application prospectus CN104315844A discloses one kind
Making brick from sludge technique；The technological problemses are that sludge drying produces a large amount of tail gas, and vent gas treatment cost is very high.
The content of the invention
To solve deficiency of the prior art, it is an object of the invention to provide a kind of new sludge treatment technique, it is intended to ties
Sludge treatment technique and brickmaking technology are closed, solves existing sludge treatment technique sludge treatment capacity deficiency, sludge drying produces big
The problem of measuring tail gas.
To achieve the above object, the technical scheme is that：A kind of new sludge treatment technique, comprises the following steps：
1) sludge drying is carried out by hollow blade dryer, the sludge after desiccation mixes with brick-making raw material, and batch mixing is laggard
Row brickmaking, and successively dried by drying type brickkiln, tunnel type brickkiln forms by a firing；
The hollow blade dryer carries out steam circulation heating by waste heat boiler；
2) caused tail gas passes through dust removal process in mud drying process, obtained dust with the sludge after desiccation together with
Brick-making raw material mixes；
3) tail gas after dust removal process carries out spray process by spray system；
The spray system uses circulating water pool；
4) tail gas after spray process is sent into the burning of tunnel type brickkiln, the waste water that condensation process obtains after carrying out condensation process
It is back to the circulating water pool of spray system；
5) flue gas after the burning of tunnel type brickkiln is first used for waste heat boiler heating in step 1), is used further to drying type brickkiln and enters
Row fragment of brick drying and processing, subsequent flue gas are discharged by chimney；
6) sludge that the water in the circulating water pool of spray system is used in step 1) after desiccation is mixed with brick-making raw material.
Beneficial effects of the present invention：Operating cost is low, and totally enclosed type processing can be achieved, and stink do not dissipate, desiccation workshop without
Pollution, close to zero-emission.
Brief description of the drawings
Fig. 1 is the process principle figure of the present invention.
Embodiment
As shown in figure 1, a kind of new sludge treatment technique, comprises the following steps：
1) sludge drying is carried out by hollow blade dryer, the sludge after desiccation mixes with brick-making raw material, and batch mixing is laggard
Row brickmaking, and successively dried by drying type brickkiln, tunnel type brickkiln forms by a firing；
The hollow blade dryer carries out steam circulation heating by waste heat boiler；
2) caused tail gas passes through dust removal process in mud drying process, obtained dust with the sludge after desiccation together with
Brick-making raw material mixes；
3) tail gas after dust removal process carries out spray process by spray system；
The spray system uses circulating water pool；
4) tail gas after spray process is sent into the burning of tunnel type brickkiln, the waste water that condensation process obtains after carrying out condensation process
It is back to the circulating water pool of spray system；
5) flue gas after the burning of tunnel type brickkiln is first used for waste heat boiler heating in step 1), is used further to drying type brickkiln and enters
Row fragment of brick drying and processing, subsequent flue gas are discharged by chimney；
6) sludge that the water in the circulating water pool of spray system is used in step 1) after desiccation is mixed with brick-making raw material.
Thermal source is steam used in the process of wet sludge anhydration, is provided by waste heat boiler, the condensed condensed water Hui Yu of steam
Heat boiler recycles, and the tail gas that sludge drying obtains is used for tunnel type brickkiln after spray washing and condensation process and burnt, warp
Pathogen therein can be thoroughly killed after 1000 DEG C or so of roasting, stink is completely eliminated, so as to qualified discharge, and tunnel
High-temperature flue gas caused by the burning of formula brickkiln after heat release, removes drying type brickkiln, further reduces operating cost in waste heat boiler；From
The water that wet mud obtains is present in circulating water pool, available for brick-making raw material and dewatered sludge batch mixing.
Therefore, wet mud caused waste gas, waste water, solid waste after desiccation runs out of during brickmaking, three wastes
Discharge, it is believed that be zero-emission.Whole process can be totally-enclosed design, the stink of sludge is not distributed, in desiccation workshop
It is pollution-free.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modification, equivalent substitution or improvement made within refreshing and principle etc., should be included in the scope of the protection.
Claims (1)
1. a kind of new sludge treatment technique, it is characterised in that comprise the following steps：
1) sludge drying is carried out by hollow blade dryer, the sludge after desiccation is mixed with brick-making raw material, made after batch mixing
Brick, and successively dried by drying type brickkiln, tunnel type brickkiln forms by a firing；
The hollow blade dryer carries out steam circulation heating by waste heat boiler；
2) caused tail gas passes through dust removal process in mud drying process, obtained dust with the sludge after desiccation together with brickmaking
Raw material mixes；
3) tail gas after dust removal process carries out spray process by spray system；
The spray system uses circulating water pool；
4) tail gas after spray process is sent into the burning of tunnel type brickkiln, the return of waste water that condensation process obtains after carrying out condensation process
To the circulating water pool of spray system；
5) flue gas after the burning of tunnel type brickkiln is first used for waste heat boiler heating in step 1), is used further to drying type brickkiln and carries out brick
Block drying and processing, subsequent flue gas are discharged by chimney；
6) sludge that the water in the circulating water pool of spray system is used in step 1) after desiccation is mixed with brick-making raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762002.8A CN107417068A (en) | 2017-08-30 | 2017-08-30 | A kind of new sludge treatment technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710762002.8A CN107417068A (en) | 2017-08-30 | 2017-08-30 | A kind of new sludge treatment technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107417068A true CN107417068A (en) | 2017-12-01 |
Family
ID=60435355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710762002.8A Pending CN107417068A (en) | 2017-08-30 | 2017-08-30 | A kind of new sludge treatment technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107417068A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990607A (en) * | 2018-11-28 | 2019-07-09 | 葛小方 | A kind of tunnel oven exhaust treatment system and processing method |
| CN110526544A (en) * | 2019-09-23 | 2019-12-03 | 泽州县和美环保科技有限公司 | A kind of industrial sludge minimizing processing method |
| CN111841207A (en) * | 2020-07-17 | 2020-10-30 | 浙江天地环保科技股份有限公司 | Sludge drying machine outlet tail gas treatment system and method |
| CN112028448A (en) * | 2020-09-21 | 2020-12-04 | 清华大学 | Sludge treatment and building material resource utilization system and process |
| CN113352450A (en) * | 2021-03-25 | 2021-09-07 | 清华大学 | Sludge treatment system and sludge treatment method |
| CN115304236A (en) * | 2021-05-06 | 2022-11-08 | 上海市机电设计研究院有限公司 | Wet sludge integrated treatment system based on flue gas waste heat is recycled |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201386056Y (en) * | 2009-04-28 | 2010-01-20 | 溧阳市溧竹环境工程有限公司 | Complete set of treatment device for sludge drying |
| CN203513455U (en) * | 2013-10-11 | 2014-04-02 | 河北泰泽环保科技有限公司 | Sludge drying and incineration system |
| CN103979766A (en) * | 2014-05-26 | 2014-08-13 | 南京理工大学 | Indirect sludge drying tail gas treatment device and treatment method thereof |
| CN104315844A (en) * | 2014-11-15 | 2015-01-28 | 郭金良 | Process for producing brick by waste heat drying sludge from sintered brick production line tunnel kiln |
| KR20150114000A (en) * | 2014-03-28 | 2015-10-12 | 김은수 | Screw press for the treatment of contaminants |
| CN106399699A (en) * | 2016-12-19 | 2017-02-15 | 浙江富冶集团有限公司 | Process for treating sludge with copper import |
-
2017
- 2017-08-30 CN CN201710762002.8A patent/CN107417068A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201386056Y (en) * | 2009-04-28 | 2010-01-20 | 溧阳市溧竹环境工程有限公司 | Complete set of treatment device for sludge drying |
| CN203513455U (en) * | 2013-10-11 | 2014-04-02 | 河北泰泽环保科技有限公司 | Sludge drying and incineration system |
| KR20150114000A (en) * | 2014-03-28 | 2015-10-12 | 김은수 | Screw press for the treatment of contaminants |
| CN103979766A (en) * | 2014-05-26 | 2014-08-13 | 南京理工大学 | Indirect sludge drying tail gas treatment device and treatment method thereof |
| CN104315844A (en) * | 2014-11-15 | 2015-01-28 | 郭金良 | Process for producing brick by waste heat drying sludge from sintered brick production line tunnel kiln |
| CN106399699A (en) * | 2016-12-19 | 2017-02-15 | 浙江富冶集团有限公司 | Process for treating sludge with copper import |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990607A (en) * | 2018-11-28 | 2019-07-09 | 葛小方 | A kind of tunnel oven exhaust treatment system and processing method |
| CN110526544A (en) * | 2019-09-23 | 2019-12-03 | 泽州县和美环保科技有限公司 | A kind of industrial sludge minimizing processing method |
| CN111841207A (en) * | 2020-07-17 | 2020-10-30 | 浙江天地环保科技股份有限公司 | Sludge drying machine outlet tail gas treatment system and method |
| CN112028448A (en) * | 2020-09-21 | 2020-12-04 | 清华大学 | Sludge treatment and building material resource utilization system and process |
| CN113352450A (en) * | 2021-03-25 | 2021-09-07 | 清华大学 | Sludge treatment system and sludge treatment method |
| CN113352450B (en) * | 2021-03-25 | 2022-05-27 | 清华大学 | Sludge treatment system and sludge treatment method |
| CN115304236A (en) * | 2021-05-06 | 2022-11-08 | 上海市机电设计研究院有限公司 | Wet sludge integrated treatment system based on flue gas waste heat is recycled |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |