CN108929013A - Device for pyrolysis processing sludge - Google Patents
Device for pyrolysis processing sludge Download PDFInfo
- Publication number
- CN108929013A CN108929013A CN201811151327.3A CN201811151327A CN108929013A CN 108929013 A CN108929013 A CN 108929013A CN 201811151327 A CN201811151327 A CN 201811151327A CN 108929013 A CN108929013 A CN 108929013A
- Authority
- CN
- China
- Prior art keywords
- pyrolysis
- sludge
- pyrolysis gas
- air inlet
- gas
- 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.)
- Granted
Links
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 101
- 239000010802 sludge Substances 0.000 title claims abstract description 39
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 244000042295 Vigna mungo Species 0.000 description 1
- 235000006085 Vigna mungo var mungo Nutrition 0.000 description 1
- 235000010721 Vigna radiata var radiata Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
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
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Sludge (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention belongs to environment protection fields, sludge treatment field, more particularly to a kind of device for pyrolysis processing sludge, including pyrolysis portion, data acquisition portion and control unit, when the first weight value is greater than the second weight value, the flow value of control left side pyrolysis gas is greater than the flow value of right side pyrolysis gas, when the first weight value is greater than the second weight value, the flow value of control left side pyrolysis gas is less than the flow value of right side pyrolysis gas.Device for pyrolysis processing sludge, come the aperture of control valve, keeps the temperature rise effect of the left and right sides of pyrolysis reactor furnace different according to the distribution of sludge, thus make high treating effect, energy conservation and environmental protection.
Description
Technical field
The invention belongs to environment protection field, sludge treatment field, in particular to a kind of device for pyrolysis processing sludge.
Background technique
Sludge at low temperature pyrolysis is a kind of developing energy recovery type Heat-chemical Treat Method of Sludge technology.The prior art such as Lee
A kind of continous way sludge thermolysis process of patented product and device (referenced patent document CN104986934B) of text are learned, Shenzhen is big
The technical method (referenced patent document CN105417918B) of patented product microwave-heating processing municipal sludge, black gram of paddy is kept
Patented product organic waste processing method, processing unit and heat energy utilization method (referenced patent document
CN101998941B), the patented product sludge of Hang Pengzhi or organic garbage high-low temperature coupling themolysis method (referenced patent document
CN101708938B), a kind of modularization sludge hot hydrolysis process of the patented product of Beijing Jie Lv environmental science and technology limited liability company
Device and method (referenced patent document CN105016595B), a kind of oil of the patented product of Tongji University, gas, charcoal are adjustable discarded
The system and method (referenced patent document CN104087340B) of object pyrolysis.
Summary of the invention
The present invention provides a kind of devices for pyrolysis processing sludge, can be according to attribute of pending mud itself
And treatment progress, the technological parameter of pyrolysis processing or the structural form of pyrolysis installation are dynamically adjusted, high treating effect is made, energy conservation
Environmental protection.
It includes pyrolysis portion, data acquiring section and control unit, and control unit is controlled according to the information that data acquiring section is got
Pyrolysis portion carries out corresponding structural adjustment；
The pyrolysis portion includes:
Pyrolysis reactor furnace, for placing, accommodating sludge to be processed；
It is pyrolyzed gas chamber, is wrapped in pyrolysis reactor furnace periphery, inside is connected with the high warm of the heat source as pyrolyzing sludge
It vents one's spleen；
First helical blade is arranged in pyrolysis gas chamber and uniform winding is in the left side of pyrolytic reaction furnace outer wall,
One end is fixed at the first air inlet, and the other end is fixed at the first gas outlet, and middle section is fixed on pyrolytic reaction furnace outer wall
Left side, for guiding pyrolysis gas to be flowed along its winding direction；
Second helical blade is arranged in pyrolysis gas chamber and uniform winding is on the right side of pyrolytic reaction furnace outer wall,
One end is fixed at the second air inlet, and the other end is fixed at the second gas outlet, and middle section is fixed on pyrolytic reaction furnace outer wall
Right side, for guiding pyrolysis gas to be flowed along its winding direction；
Baffle is circular ring shape thin slice, is arranged between the first helical blade and the second helical blade, for separate it is left,
The pyrolysis gas of right two sides；
First valve is arranged at the first air inlet, for controlling the first-class magnitude of pyrolysis gas in the first air inlet；
Second valve is arranged at the second air inlet, for controlling the second magnitude of pyrolysis gas in the second air inlet；
Data acquisition portion includes:
The left side of pyrolysis reactor furnace is arranged in first weight sensor, for detecting sludge on the left of pyrolysis reactor furnace
First weight；
The right side of pyrolysis reactor furnace is arranged in second weight sensor, for detecting sludge on the right side of pyrolysis reactor furnace
Second weight；
The control unit is configured as:
When the first weight value is greater than the second weight value, show sludge integrated distribution to be pyrolyzed on a left side for pyrolysis reactor furnace
Side, the first valve of control works with the first opening value, are flowed the pyrolysis gas in the first air inlet with first-class magnitude, are controlled the
Two valves are worked with the second opening value smaller than the first opening value, make the pyrolysis gas in the second air inlet with smaller than first-class magnitude
Second magnitude flowing, at this point, the flow value of left side pyrolysis gas be greater than right side pyrolysis gas flow value, the heating of left side furnace wall
Effect is good, and heating rate is fast, and the pyrolysis rate of sludge is accelerated, and is pyrolyzed high-efficient；
Similarly, when the first weight value is less than the second weight value, show sludge integrated distribution to be pyrolyzed in pyrolytic reaction
The flow value on the right side of furnace, control left side pyrolysis gas is less than the flow value of right side pyrolysis gas.
The beneficial effects of the present invention are: the present invention controls air inlet situation according to the distribution of sludge, pyrolysis reactor furnace is different
Position has different temperature rise effects, keeps pyrolysis processing effect good, energy conservation and environmental protection.
Detailed description of the invention
Fig. 1 shows helical blade changes in distribution schematic diagram；
Fig. 2 shows the composition block diagrams of device.
Specific embodiment
With reference to the accompanying drawings, the function that the structure of this system is described in detail and is realized.
A kind of device for pyrolysis processing sludge comprising pyrolysis portion 1, data acquiring section 2 and control unit 3；
Wherein,
Pyrolysis portion 1 includes:
Pyrolysis reactor furnace 11 is hollow cylinder, for remaining after placing sludge and the pyrolytic reaction wait be pyrolyzed
Solid residue；
It is pyrolyzed gas chamber 12, is wrapped in 11 periphery of pyrolysis reactor furnace, inside is connected with pyrolysis gas；
First helical blade 13 is arranged in pyrolysis gas chamber and uniform winding is in the left side of pyrolytic reaction furnace outer wall,
One end is fixed at the first air inlet, and the other end is fixed at the first gas outlet, and middle section is fixed on pyrolytic reaction furnace outer wall
Left side so that pyrolysis gas is formed return flow line in pyrolysis chamber for guiding pyrolysis gas to be flowed along its winding direction；
Second helical blade 14, setting is in pyrolysis gas chamber and uniform winding is on the right side of pyrolytic reaction furnace outer wall, and one
End is fixed at the second air inlet, and the other end is fixed at the second gas outlet, and middle section is fixed on pyrolytic reaction furnace outer wall
Right side makes pyrolysis gas form return flow line in pyrolysis chamber for guiding pyrolysis gas to be flowed along its winding direction；
Baffle 15 is circular ring shape thin slice, is arranged between the first helical blade and the second helical blade, for separating two sides
Pyrolysis gas；
First valve 16 is arranged at the first air inlet, for controlling the first flow of pyrolysis gas in the first air inlet
Value；
Second valve 17 is arranged at the second air inlet, for controlling the second flow of pyrolysis gas in the second air inlet
Value；
Data acquisition portion 2 includes:
First weight sensor 21, is arranged in the left side of pyrolysis reactor furnace 11, for detecting 11 left side of pyrolysis reactor furnace
First weight of sludge；
Second weight sensor 22, is arranged in the right side of pyrolysis reactor furnace 11, for detecting 11 right side of pyrolysis reactor furnace
Second weight of sludge；
Control unit 3, is configured as:
When the first weight value is greater than the second weight value, show sludge integrated distribution to be pyrolyzed on a left side for pyrolysis reactor furnace
Side, the first valve of control works with the first opening value, are flowed the pyrolysis gas in the first air inlet with first-class magnitude, are controlled the
Two valves are worked with the second opening value smaller than the first opening value, make the pyrolysis gas in the second air inlet with smaller than first-class magnitude
Second magnitude flowing, at this point, the flow value of left side pyrolysis gas be greater than right side pyrolysis gas flow value, the heating of left side furnace wall
Effect is good, and heating rate is fast, and the pyrolysis rate of sludge is accelerated, and is pyrolyzed high-efficient；
Similarly, when the first weight value is less than the second weight value, show sludge integrated distribution to be pyrolyzed in pyrolytic reaction
The flow value on the right side of furnace, control left side pyrolysis gas is less than the flow value of right side pyrolysis gas.
One skilled in the art would recognize that without departing substantially from the spirit and scope of the invention as generally describing,
Various variations and/or modification can be carried out to invention shown in each specific embodiment.Therefore, in terms of all
For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature
Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent
It is explicitely stated in claim or each embodiment here.
Claims (2)
1. a kind of device for pyrolysis processing sludge, which is characterized in that it can be according to pending mud in pyrolysis installation
Distribution situation, dynamically adjust the structure of pyrolysis installation, make high treating effect.
2. a kind of device for pyrolysis processing sludge comprising pyrolysis portion, data acquiring section and control unit, control unit is according to number
The information control pyrolysis portion got according to acquisition unit carries out corresponding structural adjustment；It is characterized in that,
The pyrolysis portion includes:
Pyrolysis reactor furnace, for placing, accommodating sludge to be processed；
It is pyrolyzed gas chamber, is wrapped in pyrolysis reactor furnace periphery, inside is connected with the high temperature pyrolysis gas of the heat source as pyrolyzing sludge；
First helical blade is arranged in pyrolysis gas chamber and uniform winding is in the left side of pyrolytic reaction furnace outer wall, one end
It is fixed at the first air inlet, the other end is fixed at the first gas outlet, and middle section is fixed on a left side for pyrolytic reaction furnace outer wall
Side, for guiding pyrolysis gas to be flowed along its winding direction；
Second helical blade is arranged in pyrolysis gas chamber and uniform winding is in the right side of pyrolytic reaction furnace outer wall, one end
It is fixed at the second air inlet, the other end is fixed at the second gas outlet, and middle section is fixed on the right side of pyrolytic reaction furnace outer wall
Side, for guiding pyrolysis gas to be flowed along its winding direction；
Baffle is circular ring shape thin slice, is arranged between the first helical blade and the second helical blade, for separating left and right two
The pyrolysis gas of side；
First valve is arranged at the first air inlet, for controlling the first-class magnitude of pyrolysis gas in the first air inlet；
Second valve is arranged at the second air inlet, for controlling the second magnitude of pyrolysis gas in the second air inlet；
Data acquisition portion includes:
The left side of pyrolysis reactor furnace is arranged in first weight sensor, for detecting first of sludge on the left of pyrolysis reactor furnace
Weight；
The right side of pyrolysis reactor furnace is arranged in second weight sensor, for detecting second of sludge on the right side of pyrolysis reactor furnace
Weight；
The control unit is configured as:
When the first weight value is greater than the second weight value, show sludge integrated distribution to be pyrolyzed in the left side of pyrolysis reactor furnace,
It controls the first valve to work with the first opening value, flows the pyrolysis gas in the first air inlet with first-class magnitude, control second
Valve is worked with the second opening value smaller than the first opening value, makes the pyrolysis gas in the second air inlet with smaller than first-class magnitude
Second magnitude flowing, at this point, the flow value of left side pyrolysis gas is greater than the flow value of right side pyrolysis gas, the heating effect of left side furnace wall
Fruit is good, and heating rate is fast, and the pyrolysis rate of sludge is accelerated, and is pyrolyzed high-efficient；
Similarly, when the first weight value is less than the second weight value, show sludge integrated distribution to be pyrolyzed in pyrolysis reactor furnace
The flow value on right side, control left side pyrolysis gas is less than the flow value of right side pyrolysis gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151327.3A CN108929013B (en) | 2018-09-29 | 2018-09-29 | Device for pyrolysis treatment of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811151327.3A CN108929013B (en) | 2018-09-29 | 2018-09-29 | Device for pyrolysis treatment of sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108929013A true CN108929013A (en) | 2018-12-04 |
| CN108929013B CN108929013B (en) | 2021-04-13 |
Family
ID=64444174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811151327.3A Active CN108929013B (en) | 2018-09-29 | 2018-09-29 | Device for pyrolysis treatment of sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108929013B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947173A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | Pyrolyzing sludge device |
| CN108947172A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | The sludge treatment device of environmental protection |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11337039A (en) * | 1998-05-22 | 1999-12-10 | Toshiba Corp | Sludge incineration plant |
| JP2004115576A (en) * | 2002-09-24 | 2004-04-15 | Tokyo Inst Of Technol | Method for producing dry distillation gas and system for producing dry distillation gas |
| CN101850967A (en) * | 2009-11-21 | 2010-10-06 | 大连理工大学 | Integrated device and method for preparing activated carbon by using organic wastes |
| CN104718022A (en) * | 2012-10-26 | 2015-06-17 | 西门子能量股份有限公司 | Reduced maintenance water treatment apparatus incorporating wet air regeneration |
| CN106946432A (en) * | 2017-03-10 | 2017-07-14 | 艾迪机器(杭州)有限公司 | A kind of railway vacuum unloads dirty processing system |
| CN107013928A (en) * | 2017-05-19 | 2017-08-04 | 重庆三峰卡万塔环境产业有限公司 | A kind of method and system of grate furnace waste incineration cooperatively processing sludge |
| CN107176780A (en) * | 2017-07-05 | 2017-09-19 | 李群珍 | A kind of serialization sludge treatment equipment |
| CN108947173A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | Pyrolyzing sludge device |
| CN108947172A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | The sludge treatment device of environmental protection |
-
2018
- 2018-09-29 CN CN201811151327.3A patent/CN108929013B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11337039A (en) * | 1998-05-22 | 1999-12-10 | Toshiba Corp | Sludge incineration plant |
| JP2004115576A (en) * | 2002-09-24 | 2004-04-15 | Tokyo Inst Of Technol | Method for producing dry distillation gas and system for producing dry distillation gas |
| CN101850967A (en) * | 2009-11-21 | 2010-10-06 | 大连理工大学 | Integrated device and method for preparing activated carbon by using organic wastes |
| CN104718022A (en) * | 2012-10-26 | 2015-06-17 | 西门子能量股份有限公司 | Reduced maintenance water treatment apparatus incorporating wet air regeneration |
| CN106946432A (en) * | 2017-03-10 | 2017-07-14 | 艾迪机器(杭州)有限公司 | A kind of railway vacuum unloads dirty processing system |
| CN107013928A (en) * | 2017-05-19 | 2017-08-04 | 重庆三峰卡万塔环境产业有限公司 | A kind of method and system of grate furnace waste incineration cooperatively processing sludge |
| CN107176780A (en) * | 2017-07-05 | 2017-09-19 | 李群珍 | A kind of serialization sludge treatment equipment |
| CN108947173A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | Pyrolyzing sludge device |
| CN108947172A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | The sludge treatment device of environmental protection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947173A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | Pyrolyzing sludge device |
| CN108947172A (en) * | 2018-09-29 | 2018-12-07 | 姜伟 | The sludge treatment device of environmental protection |
| CN108947173B (en) * | 2018-09-29 | 2021-03-16 | 克拉玛依博达生态环保科技有限责任公司 | Sludge pyrolysis device |
| CN108947172B (en) * | 2018-09-29 | 2021-03-19 | 克拉玛依博达生态环保科技有限责任公司 | Environment-friendly sludge treatment equipment |
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| Publication number | Publication date |
|---|---|
| CN108929013B (en) | 2021-04-13 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20201231 Address after: 210000 No.2 Jinghua Road, economic development zone, Gaochun District, Nanjing City, Jiangsu Province Applicant after: Nanjing Huazhao environmental protection equipment Co.,Ltd. Address before: 230000 building 6, Xinghai garden, logistics Avenue, Yaohai District, Hefei City, Anhui Province Applicant before: Jiang Wei |
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Address after: Room 102, Building 16, No. 218 Yongxing Road, Yongxing Street, Chongchuan District, Nantong City, Jiangsu Province, 226000 Patentee after: Jiangsu Huazhao Environmental Protection Equipment Co.,Ltd. Address before: 210000 No.2 Jinghua Road, economic development zone, Gaochun District, Nanjing City, Jiangsu Province Patentee before: Nanjing Huazhao environmental protection equipment Co.,Ltd. |