CN202054726U - Deep dehydration system for sludge - Google Patents
Deep dehydration system for sludge Download PDFInfo
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- CN202054726U CN202054726U CN2011201870210U CN201120187021U CN202054726U CN 202054726 U CN202054726 U CN 202054726U CN 2011201870210 U CN2011201870210 U CN 2011201870210U CN 201120187021 U CN201120187021 U CN 201120187021U CN 202054726 U CN202054726 U CN 202054726U
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- mud
- sludge
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- mechanical dehydration
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Abstract
The utility model provides a deep dehydration system for sludge. The system has the advantages that the cost is low, the energy consumption is low, and sewage sludge is dehydrated with lower water content at one time. The system comprises a sludge pretreatment device, a sludge conditioning device and a mechanical dehydration device, wherein sludge of which water content is within a certain range is obtained through the sludge pretreatment device; the sludge conditioning device is connected with the sludge pretreatment device through a sludge conveying pipe to chemically condition the sludge conveyed by the sludge pretreatment device; and the mechanical dehydration device is connected with the sludge conditioning device through a conditioning sludge conveying pipe to mechanically dehydrate the sludge chemically conditioned to obtain dehydrated sludge cakes.
Description
Technical field
The utility model relates to the deeply dehydrating sludge field, relates in particular to a kind of deeply dehydrating sludge system.
Background technology
Mostly traditional sludge dewatering treatment is only to adopt mechanical dewatering equipment, mud is carried out so-called mechanical dehydration handle.The mud that carried out mechanical dehydration processing first can be controlled at the water ratio of dewatered sludge about 78～85%, but this does not reach the ideal effect that carries out sludge dewatering treatment far away.And because the mud of this water ratio is pasty state, still be solid-liquid mixing shape, be not easy to stack, transport, and have the shortcomings such as follow-up utilization again that percolate is extremely difficult, can not directly fill up, easily cause environmental pollution and can't carry out mud.
Given this, in the prior art, carried out a series of research, proposed twice pressing processed system, natural air drying processed system, centrifugal dehydration treatment system etc. at this dewatered sludge that carried out mechanical dehydration processing first.But, these are at the treatment system of carrying out through the dewatered sludge after mechanical dehydration is handled first, exist all that the energy consumption that secondary treatment causes increases, the operational cycle prolongs and the problem of effective ingredient loss etc., directly cause the increase of processed cost.And, because mostly dewatered sludge be to be formed by the set of cotton-shaped colloid, in the time of between the water ratio in the mud drops to 55%～65%, can form one and be called the state of " viscose glue phase region ", be difficult to further detach moisture the mud under this state again.Therefore, handle under the background that causes energy consumption increase, cost raising, cycle stretch-out, need the sludge dewatering system of secondary treatment obviously not have the advantage that more voluminous industry is used at second dehydration.
The utility model content
The utility model is exactly in view of the above problems and proposes, its purpose be to provide a kind of low cost, less energy-consumption, disposable with the sewage sludge deep dehydration to deeply dehydrating sludge system than low-water-content.
The utility model provides a kind of deeply dehydrating sludge system, and this deeply dehydrating sludge system comprises mud treatment unit in early stage, obtains the mud of water ratio in certain scope; The mud modifying device, it links to each other via dredging tube with above-mentioned mud treatment unit in early stage, to from above-mentioned mud in earlier stage the above-mentioned mud that transports of treatment unit carry out chemical conditioning; And the mechanical dehydration device, it links to each other via modified mud transfer lime with above-mentioned mud modifying device, and the above-mentioned mud behind above-mentioned chemical conditioning is carried out mechanical dehydration, obtains dehydrated sludge cake.
According to deeply dehydrating sludge of the present utility model system, by the mud modifying device is combined with the mechanical dehydration device, can with water ratio below the disposable dehydration to 55% of the mud about 93%～98%, the water ratio of dehydrated sludge cake can be controlled at 55%～38% substantially.
In the deeply dehydrating sludge of the present utility model system, preferred above-mentioned mechanical dehydration device links to each other with above-mentioned mud treatment unit in early stage via the backflow hydraulic pipe.
In the deeply dehydrating sludge of the present utility model system, preferably also comprise the dehydrated sludge cake verifying attachment of the water ratio of checking above-mentioned dehydrated sludge cake
According to the utility model, can provide a kind of low cost, less energy-consumption, disposable with the sewage sludge deep dehydration to deeply dehydrating sludge system than low-water-content.
Description of drawings
Fig. 1 is the structural representation of expression deeply dehydrating sludge of the present utility model system.
Embodiment
As shown in Figure 1, deeply dehydrating sludge of the present utility model system possesses mud treatment unit in early stage; Mud modifying device and mechanical dehydration device.
In the mud treatment unit in early stage, preset the water ratio 93%～99.2% or the mud of high-moisture more, the mud that is stored in the mud concentration basin that treatment unit possesses early stage etc. leaves standstill in the container, regulates, obtain the mud of 93%～98% water ratio, be preferably the mud of water ratio 98%.At this moment, for the convenience of handling, save the process of conveying, also can directly handle at the mud of generations such as sewage work, the storing device that mud is original leaves standstill container as mud.For example, the primary sludge storage pool among Fig. 1 as concentration basin, and is omitted concentration basin.
In the mud modifying device, the mud to the water ratio 93%～98% that mud in earlier stage obtains in the treatment unit adds chemicals such as flocculation agent, breaks the colloidal structure of mud, reduces the specific impedance value of mud, makes the moisture in the mud be able to sufficient release.Mud in mud modifying device and the mud treatment unit in early stage leaves standstill container and links to each other, to leave standstill the additives such as mud interpolation flocculation agent that container transport is come from mud, carries out chemical conditioning.
When the mud that above-mentioned specific impedance value refers to unit mass filters under certain pressure, the resistance on the unit filtration area.The proportional example relation of the complexity of specific impedance value and sludge dewatering, promptly the specific impedance value of mud is more little, and this mud is its contained moisture of easy more release just, reduces the difficulty of dehydration, realizes solid-liquid separation easily.The researchist finds through test, and the specific impedance value of mud of not passing through chemical conditioning is all 1.0 * 10
9More than the cm/g, be difficult to dewater again.And the specific impedance value of sanitary sewage mud can reach 2.47 * 10
9Cm/g without modified, can not reach water ratio below 60% substantially.In the mud modifying device, preferred, the specific impedance value of mud is controlled at (0.5～0.9) * 10
9About cm/g, be more preferably and be controlled at (0.4～0.7) * 10
9About cm/g.
This flocculation agent can contain polyacrylamide, also can be other chemicals that can reduce the specific impedance value of mud.If contain the flocculation agent of polyacrylamide, then the weight ratio of optimization polypropylene acid amides is 4.38～5.33 ‰.
In the mechanical dehydration device, will be transported to through the mud of chemical conditioning in the filtering equipment of full-automatic plate-and-frame filter press etc., carry out mechanical dehydration and handle, obtain the dehydrated sludge cake of water ratio 55%～38%, realize separating of moisture and mud cake.Dehydrated sludge cake is sent by e Foerderanlages such as travelling belts.So, the dehydrated sludge cake verifying attachment can also be set, the water ratio of check dehydrated sludge cake, whether the water ratio that detects dehydrated sludge cake has reached desired value, realizes the real-time monitoring of dehydrated sludge cake water ratio.
The mechanical dehydration device connects above-mentioned mud treatment unit in early stage via the backflow hydraulic pipe.Handle the moisture obtain through mechanical dehydration, a part enters Sewage treatment systems via water pipe, handles again, and another part leaves standstill in the container via the mud that the backflow hydraulic pipe is transported to concentration basin etc., regulates the water ratio that mud leaves standstill the mud in the container.For convenient processing and detection, monitoring mud also can be set leave standstill the moisture percentage in sewage sludge monitoring device of the moisture percentage in sewage sludge in the container, and the variable valve of regulating the moisture operational throughput according to the detected result of moisture percentage in sewage sludge monitoring device is set on the backflow hydraulic pipe.
Below, the specific embodiment of deeply dehydrating sludge of the present utility model system is described.
Embodiment 1
At first, it is 1000 kilograms in 93% mud that the mud gathering device is collected water ratio, utilizes the mud modifying device to adding 7 kilograms flocculation agent in the mud, carries out chemical conditioning, obtains the mud after modified, and recording its specific impedance value is 0.69 * 10
9Cm/g.Then, will be transported to through modified mud in the mechanical dehydration device of plate-and-frame filter press etc., and carry out mechanical dehydration and handle, and obtain dehydrated sludge cake, the water ratio that records this dehydrated sludge cake is 50%.
Embodiment 2
The mud gathering device is collected 1000 kilograms in the mud of water ratio 95%, utilizes the mud modifying device to adding 9 kilograms flocculation agent in the mud, carries out chemical conditioning, obtains the mud after modified, and recording its specific impedance value is 0.5 * 10
9Cm/g.To be transported to through modified mud in the mechanical dehydration device of plate-and-frame filter press etc., and carry out mechanical dehydration and handle, and obtain dehydrated sludge cake, the water ratio that records this dehydrated sludge cake is 45%.
Embodiment 3
The mud gathering device is collected 1000 kilograms in the mud of water ratio 98%, utilizes the mud modifying device to adding 10 kilograms flocculation agent in the mud, carries out chemical conditioning, obtains the mud after modified, and recording its specific impedance value is 0.45 * 10
9Cm/g.To be transported to through modified mud in the mechanical dehydration device of plate-and-frame filter press etc., and carry out mechanical dehydration and handle, and obtain dehydrated sludge cake, the water ratio that records this dehydrated sludge cake is 42%.
According to deeply dehydrating sludge of the present utility model system, by the mud modifying device is combined with the mechanical dehydration device, can with water ratio below the disposable dehydration to 55% of the mud about 93%～98%, the water ratio of dehydrated sludge cake can be controlled at 55%～38% substantially.Compared with prior art, this system is not to the dual-spectrum process of mud, reduced required energy consumption, cost and the cycle of secondary treatment effectively, and greatly reduce water ratio, reduced the sludge volume amount, storage space and transportation cost can be saved, the cost of mud subsequent disposal can be reduced simultaneously.
By implement native system in mud country of origin such as sewage works, can also reduce the generation of mud from the source, be beneficial to energy-saving and emission-reduction.
Above, describe embodiment of the present utility model in detail, but the utility model being not limited thereto, the various changes of carrying out based on the technical solution of the utility model also belong to scope of the present utility model.
Claims (3)
1. a deeply dehydrating sludge system is characterized in that, comprising:
Mud treatment unit in early stage obtains the mud of water ratio in certain scope;
The mud modifying device, it links to each other via dredging tube with described mud treatment unit in early stage, to from described mud in earlier stage the described mud that transports of treatment unit carry out chemical conditioning; And
The mechanical dehydration device, it links to each other via modified mud transfer lime with described mud modifying device, the described mud behind described chemical conditioning is carried out deep dehydration handle, and obtains dehydrated sludge cake.
2. deeply dehydrating sludge according to claim 1 system is characterized in that,
Described mechanical dehydration device links to each other with described mud treatment unit in early stage via the backflow hydraulic pipe.
3. deeply dehydrating sludge according to claim 1 and 2 system is characterized in that, also comprises: the dehydrated sludge cake verifying attachment of checking the water ratio of described dehydrated sludge cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201870210U CN202054726U (en) | 2011-05-27 | 2011-05-27 | Deep dehydration system for sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201870210U CN202054726U (en) | 2011-05-27 | 2011-05-27 | Deep dehydration system for sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202054726U true CN202054726U (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201870210U Expired - Fee Related CN202054726U (en) | 2011-05-27 | 2011-05-27 | Deep dehydration system for sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795755A (en) * | 2011-05-27 | 2012-11-28 | 广州绿由工业弃置废物回收处理有限公司 | Sludge deep dehydrating system and sludge deep dehydrating method |
-
2011
- 2011-05-27 CN CN2011201870210U patent/CN202054726U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795755A (en) * | 2011-05-27 | 2012-11-28 | 广州绿由工业弃置废物回收处理有限公司 | Sludge deep dehydrating system and sludge deep dehydrating method |
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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: GUANGZHOU LUYOU INDUSTRIAL WASTE RECYCLING CO., LT Free format text: FORMER OWNER: GUANGDONG LVYOU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Effective date: 20120702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511400 GUANGZHOU, GUANGDONG PROVINCE TO: 511466 GUANGZHOU, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120702 Address after: Nansha District Hengli Town, Guangzhou city of Guangdong province 511466 Hexing Road No. 56 (Hengli Institute) Patentee after: Guangzhou Luyou Industrial Waste Recycling Co., Ltd. Address before: 511400 Guangdong city of Guangzhou province Panyu District Shi Ji Zhen Ling Bian Road No. 163 Patentee before: Guangdong Lvyou Environmental Protection Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG LUYOU ENVIRONMENTAL PROTECTION EQUIPMENT Free format text: FORMER OWNER: GUANGZHOU LUYOU INDUSTRIAL WASTE RECYCLING CO., LTD. Effective date: 20140314 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 511466 GUANGZHOU, GUANGDONG PROVINCE TO: 511450 GUANGZHOU, GUANGDONG PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140314 Address after: 511450, No. three, No. 101, No. 5, East Village Road, East Village, Tai Lung Street, Fu Tung Road, Fu Yi Road, Guangzhou, Guangdong, Panyu District Patentee after: GUANGDONG LVYOU ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. Address before: Nansha District Hengli Town, Guangzhou city of Guangdong province 511466 Hexing Road No. 56 (Hengli Institute) Patentee before: Guangzhou Luyou Industrial Waste Recycling Co., Ltd. |
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| 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: 20111130 Termination date: 20180527 |