CN102807306B - Method and device for treating excess sludge - Google Patents
Method and device for treating excess sludge Download PDFInfo
- Publication number
- CN102807306B CN102807306B CN201210345955.1A CN201210345955A CN102807306B CN 102807306 B CN102807306 B CN 102807306B CN 201210345955 A CN201210345955 A CN 201210345955A CN 102807306 B CN102807306 B CN 102807306B
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- Prior art keywords
- sludge
- mud
- boiler
- dryer
- drying
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- 239000010802 sludge Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 27
- 230000008676 import Effects 0.000 claims description 21
- 239000000779 smoke Substances 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 11
- 239000003546 flue gas Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000002918 waste heat Substances 0.000 abstract description 3
- 239000003245 coal Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method and a device for treating excess sludge. Compared with the prior art, the method and the device have the advantages that the sludge is dehydrated by a reasonable sludge treatment method, so that the content of water in the sludge is reduced, and operating cost at a drying stage is reduced; waste heat in boiler tail gas is used in the drying process of the sludge, so that renewable resources are fully used; and the dried sludge and fuel coal are combusted, so that energy is saved, environmental pollution is reduced, and emission is reduced.
Description
Technical field
The present invention relates to a kind of excess sludge treatment process and device.
Background technology
In fur manufacturing process, produce a large amount of organic waste water, these waste water are qualified discharge after treatment; But in treating processes, produce a large amount of organic sludges, if these mud will cause secondary pollution to environment according to common burying method, cannot realize recycling and harmless treatment.
Summary of the invention
For the problems of the prior art, the object of the invention is to provide a kind of excess sludge treatment process and device.
Technical scheme of the present invention is:
An excess sludge treatment process, is less than or equal to 75% by centrifugal dewatering of sludge to water ratio, then dries to water ratio and is less than or equal to 15%, and last pneumatic transmission to burning in boiler utilizes.
Further, drying the thermal source adopting is boiler smoke, will after boiler smoke dedusting, mud be dried.
Further, using high pressure positive blower that the mud after drying is delivered to burning in boiler utilizes.
An excess sludge treatment unit, this device comprises dryer, tornado dust collector, high pressure positive blower; On described dryer, be provided with boiler smoke import, boiler flue gas outlet, mud import, sludge outlet, on tornado dust collector, be provided with feed-pipe, discharge port, air outlet tube, sludge outlet is connected with feed-pipe, and discharge port is connected with boiler feed mouth, and high pressure positive blower is arranged on air outlet tube.
Further, described dryer comprises drying shed, drying shed middle part is provided with dispersing device, mud import and boiler flue gas outlet are arranged between dispersing device, boiler smoke import and sludge outlet are arranged on outer wall of drying room, some spiral propellers are set in drying shed, form drying channel between spiral propeller, the interface of drying channel is S-shaped.
Further, mud import and sludge outlet are worm conveyor.
Further, on the worm conveyor of described mud import, be provided with sludge storage hopper.
Further, dryer is connected with frequency transformer.
Further, described spiral propeller is 3.
Compared with prior art, the present invention, by rational method for sludge treatment, reduces the moisture in mud by mud by dehydration on the one hand, reduces on the other hand the working cost of baking stage; Mud utilizes the waste heat in boiler exhaust gas in drying course, makes full use of renewable resource; After mud drying, burn together with bunker coal, the pollution of not only save energy, and reduction to environment, realizes energy-saving and emission-reduction.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention will be further described.
Embodiment
An excess sludge treatment process, is less than or equal to 75% by centrifugal dewatering of sludge to water ratio, then dries to water ratio and is less than or equal to 15%, and last pneumatic transmission to burning in boiler utilizes; Drying the thermal source adopting is boiler smoke, will after boiler smoke dedusting, mud be dried; Using high pressure positive blower that the mud after drying is delivered to burning in boiler utilizes.
As shown in Figure 1, a kind of excess sludge treatment unit, this device comprises dryer, tornado dust collector 8, high pressure positive blower 9; On described dryer, be provided with boiler smoke import 5, boiler flue gas outlet 6, mud import, sludge outlet 7, on tornado dust collector 8, be provided with feed-pipe 11, discharge port 10, air outlet tube, sludge outlet 7 is connected with feed-pipe 11, discharge port 10 is connected with boiler feed mouth, and high pressure positive blower 9 is arranged on air outlet tube; Described dryer comprises drying shed, drying shed middle part is provided with dispersing device 3, mud import and boiler flue gas outlet 6 are arranged between dispersing device 3, boiler smoke import 5 and sludge outlet 7 are arranged on outer wall of drying room, some spiral propellers 4 are set in drying shed, between spiral propeller 4, form drying channel, the interface of drying channel is S-shaped; Mud import and sludge outlet 7 are worm conveyor; On the worm conveyor 2 of described mud import, be provided with sludge storage hopper 1; Dryer is connected with frequency transformer 12; Described spiral propeller 4 is 3.
During work, mud is after horizontal screw centrifuge dehydration, and water ratio drops to 75% left and right; Then deliver to sludge storage hopper; Mud self-pressure in sludge storage hopper enters in the worm conveyor of mud import, through the worm conveyor of mud import, mud is sent into dryer; Boiler smoke, after bag-type dust, will be sent in dryer containing waste heat flue gas through boiler smoke import, and flue gas adverse current enters, and mud following current enters; By self rotating of dryer, screw propulsion is by mud iterative method, until mud is sent discharge port; Mud following current enters in dryer, and because just entering dryer, mud conglomeration type is very strong, and the inner dispersing device of installing of dryer, breaks up the mud just having entered, and is beneficial to absorb distributing of heat and water; Under the effect of frequency transformer, adjust the rotating speed of dryer, to control the control of mud granule, oven dry moisture; When boiler flue gas countercurrent enters dryer, first contact with the mud after prebake, improved the temperature of sludge outlet, and guarantee the mass dryness fraction of sludge outlet mud; Boiler smoke is through drying channel, and final residual heat from boiler fume is discharged from dryer after utilizing, then discharges after boiler flue gas outlet enters flue gas desulphurization system desulfurization; After mud is dried, the particle diameter of general control mud is at 5mm, and moisture is no more than 15%; Mud after oven dry, under high pressure positive blower effect, enters burning in boiler through tornado dust collector and utilizes.
Claims (1)
1. an excess sludge treatment unit, is characterized in that, this device comprises dryer, tornado dust collector, high pressure positive blower, on described dryer, be provided with boiler smoke import, boiler flue gas outlet, mud import, sludge outlet, on tornado dust collector, be provided with feed-pipe, discharge port, air outlet tube, sludge outlet is connected with feed-pipe, discharge port is connected with boiler feed mouth, high pressure positive blower is arranged on air outlet tube, described dryer comprises drying shed, drying shed middle part is provided with dispersing device, mud import and boiler flue gas outlet are arranged between dispersing device, boiler smoke import and sludge outlet are arranged on outer wall of drying room, some spiral propellers are set in drying shed, between spiral propeller, form drying channel, the interface of drying channel is S-shaped, mud import and sludge outlet are worm conveyor, on the worm conveyor of described mud import, be provided with sludge storage hopper, dryer is connected with frequency transformer, described spiral propeller is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345955.1A CN102807306B (en) | 2012-09-18 | 2012-09-18 | Method and device for treating excess sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210345955.1A CN102807306B (en) | 2012-09-18 | 2012-09-18 | Method and device for treating excess sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102807306A CN102807306A (en) | 2012-12-05 |
| CN102807306B true CN102807306B (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210345955.1A Active CN102807306B (en) | 2012-09-18 | 2012-09-18 | Method and device for treating excess sludge |
Country Status (1)
| Country | Link |
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| CN (1) | CN102807306B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102951779B (en) * | 2012-12-11 | 2014-03-19 | 张家港市华源染织有限公司 | Dyeing sludge treatment device |
| CN103438477B (en) * | 2013-08-29 | 2015-10-14 | 南京侨兴环保设备有限公司 | A kind of biomass power generation recycling device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080110969A (en) * | 2008-11-28 | 2008-12-22 | (주)한국환경기술 | Sludge drying and carbonization apparatus |
| CN102252332A (en) * | 2011-05-30 | 2011-11-23 | 苏州市宏达集团有限公司 | Sludge incineration generating device |
| CN102372410A (en) * | 2010-08-20 | 2012-03-14 | 上海市离心机械研究所有限公司 | Method for sludge dehydration and drying |
| CN202329028U (en) * | 2011-12-05 | 2012-07-11 | 郑州市鼎力干燥设备有限公司 | Novel coal slime cylinder drier |
| CN202785935U (en) * | 2012-09-18 | 2013-03-13 | 焦作隆丰皮草企业有限公司 | Excess sludge treatment device |
-
2012
- 2012-09-18 CN CN201210345955.1A patent/CN102807306B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080110969A (en) * | 2008-11-28 | 2008-12-22 | (주)한국환경기술 | Sludge drying and carbonization apparatus |
| CN102372410A (en) * | 2010-08-20 | 2012-03-14 | 上海市离心机械研究所有限公司 | Method for sludge dehydration and drying |
| CN102252332A (en) * | 2011-05-30 | 2011-11-23 | 苏州市宏达集团有限公司 | Sludge incineration generating device |
| CN202329028U (en) * | 2011-12-05 | 2012-07-11 | 郑州市鼎力干燥设备有限公司 | Novel coal slime cylinder drier |
| CN202785935U (en) * | 2012-09-18 | 2013-03-13 | 焦作隆丰皮草企业有限公司 | Excess sludge treatment device |
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| Publication number | Publication date |
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| CN102807306A (en) | 2012-12-05 |
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Effective date of registration: 20230822 Address after: No. 5, Mengzhou Industrial Cluster District, Jiaozuo City, Henan Province, 454750 Patentee after: Longfeng Gelemei Fashion Co.,Ltd. Address before: Jiaozuo Longfeng Fur Enterprise Co., Ltd., No. 5, West Industrial Zone, Mengzhou City, Jiaozuo City, Henan Province 454791 Patentee before: HENAN PROSPER SKINS & LEATHER ENTERPRISE Co.,Ltd. |
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Effective date of registration: 20240619 Address after: No. 5, High tech Development Zone, Mengzhou City, Jiaozuo City, Henan Province, China Patentee after: Henan Ruilong Intelligent Environmental Protection Technology Co.,Ltd. Country or region after: China Address before: No. 5, Mengzhou Industrial Cluster District, Jiaozuo City, Henan Province, 454750 Patentee before: Longfeng Gelemei Fashion Co.,Ltd. Country or region before: China |
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