CN203382631U - Fluidized bed sludge dryer - Google Patents
Fluidized bed sludge dryer Download PDFInfo
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- CN203382631U CN203382631U CN201320359731.6U CN201320359731U CN203382631U CN 203382631 U CN203382631 U CN 203382631U CN 201320359731 U CN201320359731 U CN 201320359731U CN 203382631 U CN203382631 U CN 203382631U
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- sludge
- drying machine
- sludge dryer
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Abstract
The utility model discloses a fluidized bed sludge dryer which comprises a sludge dryer shell, a dispersive stirring device, a steam distributor, an air box, a cyclone separator, a steam-water separator, a fluidized gas control device and an air blower, wherein a gas distribution plate is arranged between the sludge dryer shell and the air box, and the gas distribution plate is provided with a gas dispersing head; the dispersive stirring device is arranged on the side wall of the sludge dryer shell, and the dispersive stirring device is positioned below a sludge inlet; the top end of the sludge dryer shell is provided with a fluidized gas outlet. The fluidized bed sludge dryer disclosed by the utility model prevents the waste gas from being generated in a drying process by adopting an inert fluidized gas which is in closed cycle, can further reduce the water ratio of sludge by carrying out indirect heating by utilizing a steam heat source and has the characteristics of efficiently recovering heat energy and effectively preventing the generation of secondary pollution.
Description
Technical field
The utility model relates to a kind of fluidized-bed sludge drying machine, belongs to the environmental protection technical field of sludge treatment.
Background technology
Along with urbanization process is accelerated, industrial developing rapidly, the increase of urban population, the quantity discharged of urban industry waste water and sanitary sewage is increasing, and treatment rate of domestic sewage also improves year by year, and the sludge yield of municipal sewage plant also sharply increases.A large amount of excess sludges will discharge in sewage work, and the mud of enormous amount need to be done further processing, if mud can not get reasonable processing, will cause secondary pollution.According to statistics, the town sewage treatment facility put into operation in the existing whole nation is thousands of seats altogether, the annual mud (dry weight) that produces is more than 1,000 ten thousand tons, and annual growth nearly 10 percentage point, the processing disposal costs of sewage sludge is higher, in whole construction costs of wastewater treatment in China factory, for the treatment of mud, account for 20%～50%.The composition of sewage sludge is very complicated, except containing a large amount of moisture, also containing a large amount of useful resources.Have at present multiplely for urban sludge treating method, landfill, burning and comprehensive utilization are generally arranged, but, before recycling, need carry out pre-treatment to mud, nursed one's health, comprise concentrated, dehydration, drying.Mud after mummification, can apply to land reclamation, building materials utilization etc.How to reduce the water ratio of mud, this is the vital task of sludge treatment, also should avoid the problem of secondary pollution such as waste gas in drying process.
The utility model content
The purpose of this utility model is to provide a kind of fluidized-bed sludge drying machine, adopt the inertia fluidizing agent of closed cycle, avoid waste gas in drying process to produce, utilize the steam source indirect heating, can further reduce moisture percentage in sewage sludge, there is high efficient heat recovery, effectively avoid the characteristics of problem of secondary pollution.
The purpose of this utility model is achieved through the following technical solutions: a kind of fluidized-bed sludge drying machine comprises sludge drying machine shell, dispersion mixing device, vapour distributor, bellows, cyclonic separator, steam separator, fluidizing agent control device, blower fan; It is characterized in that: be provided with gas distribution grid between described sludge drying machine shell and bellows, and be provided with gas blow head on gas distribution grid; Described dispersion mixing device is arranged on the sidewall of sludge drying machine shell, and dispersion mixing device is positioned at the below of mud import; The top of described sludge drying machine shell is provided with the fluidizing agent outlet.
Described fluidizing agent outlet connects cyclonic separator, steam separator, fluidizing agent control device, blower fan and fluidizing agent import successively by pipeline.
Described vapour distributor is connected with some steam branch pipes of gas distribution grid top by pipeline.
In sum, the beneficial effects of the utility model are: the utility model fluidized-bed sludge drying machine adopts the inertia fluidizing agent of closed cycle, avoid in drying process waste gas to produce, in mud, moisture is fluidized gas and takes away, and at steam separator, carries out the carbonated drink separation; The dispersion mixing device arranged makes mud have fluidized state preferably, is easy to sludge drying; Utilize the steam source indirect heating, can further reduce moisture percentage in sewage sludge, have high efficient heat recovery, effectively avoid the characteristics of problem of secondary pollution, after mummification, mud can arrive the requirement of recycling.
The accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
The title of mark in accompanying drawing: 1-mud import; 2-sludge drying machine shell; The outlet of 3-fluidizing agent; 4-dispersion mixing device; 5-steam inlet; 6-vapour distributor; 7-bellows; The import of 8-fluidizing agent; 9-sludge outlet; 10-vapour outlet; 11-cyclonic separator; 12-steam separator; 13-fluidizing agent control device; 14-blower fan; 15-gas distribution grid; 16-gas blow head; 17-steam branch pipe.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited only to this.
Embodiment: as shown in Figure 1, the utility model comprises sludge drying machine shell 2, dispersion mixing device 4, vapour distributor 6, bellows 7, cyclonic separator 11, steam separator 12, fluidizing agent control device 13, blower fan 14; It is characterized in that: be provided with gas distribution grid 15 between described sludge drying machine shell 2 and bellows 7, and be provided with gas blow head 16 on gas distribution grid 15; Described dispersion mixing device 4 is arranged on the sidewall of sludge drying machine shell 2, and dispersion mixing device 4 is positioned at the below of mud import 1; The top of described sludge drying machine shell 2 is provided with fluidizing agent outlet 3.
Described fluidizing agent outlet 3 connects cyclonic separator 11, steam separator 12, fluidizing agent control device 13, blower fan 14 and fluidizing agent import 8 successively by pipeline.
Described vapour distributor 6 is connected with some steam branch pipes 17 of gas distribution grid 15 tops by pipeline.
Principle of work of the present utility model: after the mud of sewage work carries out thickening, the mud that water ratio is 80～85% enters the dewatered sludge storehouse, feeding conveyor arrives mud import 1 by sludge lifting, mud enters in sludge drying machine shell 2, dispersion mixing device 4 also carries out discrete distribution by mud, 85 ℃ of fluidized-bed sludge drying machine inner drying temperature, provide heat by steam branch pipe 17 heat radiations, the mud granule produced is recycled gas fluidized and produces fierce mixing, in mud, moisture is fluidized gas and takes away, fluidizing agent adopts rare gas element, by by pipeline, connecting successively cyclonic separator 11, steam separator 12, fluidizing agent control device 13, blower fan 14 and fluidizing agent import 8, gas blow head 16 on gas distribution grid 15 disperses fluidizing agent upwards to flow, form closed cycle, reduce exhaust gas emission.Owing to relying on the thermal capacity of himself in fluidized-bed, the residence time is long and product amount is large, with the gas of circulation, takes mud particulate and dust out of fluidized layer, and dewatered sludge is discharged from sludge outlet 9.The mud particulate is in the interior separation of cyclonic separator 11, and the moisture of evaporation carries out condensation separation the direct adverse current water spray of the interior employing of steam separator 12 mode.Moisture and other recycle gas of evaporation are cooled to 60 ℃ from 85 ℃ of left and right, then condensation, the water that condensation is got off leaves recycle gas, water of condensation is discharged from steam separator 12 bottoms, fluidizing agent clean and cooling in steam separator 12 is got back to again the fluidized-bed sludge drying machine, forms closed cycle.
As mentioned above, just can realize preferably the utility model.
Claims (3)
1. a fluidized-bed sludge drying machine, comprise sludge drying machine shell (2), dispersion mixing device (4), vapour distributor (6), bellows (7), cyclonic separator (11), steam separator (12), fluidizing agent control device (13), blower fan (14); It is characterized in that: be provided with gas distribution grid (15) between described sludge drying machine shell (2) and bellows (7), and be provided with gas blow head (16) on gas distribution grid (15); Described dispersion mixing device (4) is arranged on the sidewall of sludge drying machine shell (2), and dispersion mixing device (4) is positioned at the below of mud import (1); The top of described sludge drying machine shell (2) is provided with fluidizing agent outlet (3).
2. a kind of fluidized-bed sludge drying machine according to claim 1 is characterized in that: described fluidizing agent outlet (3) connects cyclonic separator (11), steam separator (12), fluidizing agent control device (13), blower fan (14) and fluidizing agent import (8) successively by pipeline.
3. a kind of fluidized-bed sludge drying machine according to claim 1 is characterized in that: described vapour distributor (6) is connected with some steam branch pipes (17) of gas distribution grid (15) top by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320359731.6U CN203382631U (en) | 2013-06-24 | 2013-06-24 | Fluidized bed sludge dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320359731.6U CN203382631U (en) | 2013-06-24 | 2013-06-24 | Fluidized bed sludge dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203382631U true CN203382631U (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320359731.6U Expired - Fee Related CN203382631U (en) | 2013-06-24 | 2013-06-24 | Fluidized bed sludge dryer |
Country Status (1)
| Country | Link |
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| CN (1) | CN203382631U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058571A (en) * | 2014-07-01 | 2014-09-24 | 东南大学 | Double-chamber fluidized bed sludge dryer |
| CN105776803A (en) * | 2016-04-14 | 2016-07-20 | 成都蒲江珂贤科技有限公司 | Environment sludge drying treatment device |
| CN112374722A (en) * | 2020-10-30 | 2021-02-19 | 上海市政工程设计研究总院（集团）有限公司 | Sludge fluidized bed drier |
-
2013
- 2013-06-24 CN CN201320359731.6U patent/CN203382631U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104058571A (en) * | 2014-07-01 | 2014-09-24 | 东南大学 | Double-chamber fluidized bed sludge dryer |
| CN105776803A (en) * | 2016-04-14 | 2016-07-20 | 成都蒲江珂贤科技有限公司 | Environment sludge drying treatment device |
| CN112374722A (en) * | 2020-10-30 | 2021-02-19 | 上海市政工程设计研究总院（集团）有限公司 | Sludge fluidized bed drier |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN ZHONGCE ENVIRONMENTAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHENGDU YUANCHUANG ENVIRONMENTAL ENGINEERING CO., LTD. Effective date: 20140822 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 221600 XUZHOU, JIANGSU PROVINCE TO: 610000 CHENGDU, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140822 Address after: 610000 No. 2 Tianyu Road, hi tech Zone, Sichuan, Chengdu Patentee after: SICHUAN ZHONGCE ENVIRONMENTAL TECHNOLOGY CO., LTD. Address before: 221600, No. 35, Guan garden, deer Town, Xuzhou, Jiangsu, Peixian Patentee before: Chengdu Yuanchuang Environmental Engineering Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20160624 |