CN105060679A - Sludge thawing and conditioning system - Google Patents
Sludge thawing and conditioning system Download PDFInfo
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- CN105060679A CN105060679A CN201510465601.4A CN201510465601A CN105060679A CN 105060679 A CN105060679 A CN 105060679A CN 201510465601 A CN201510465601 A CN 201510465601A CN 105060679 A CN105060679 A CN 105060679A
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- mud
- heat room
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- sludge
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Abstract
The present invention discloses a sludge thawing and conditioning system, which is characterized in that a refrigerating machine is used to freeze sludge, the frozen sludge is subjected to heat exchange, and atmosphere or flowing water in sewage treatment plant is used to thaw. According to the present invention, after the freezing/thawing treatment, the dewatering performance of the obtained sludge is substantially improved.
Description
Technical field
The present invention relates to a kind of mud tempering system, particularly relate to and a kind of mud in sewage work is carried out the modified system of freeze thawing.
Background technology
Phase late 1940s, the people such as Clements
[1]observe, the glue plumage particle precipitation through the process of freezing thawing method is quick, and volume of sediment diminishes, therefore first utilizes this method to improve the dehydration property of mud and to find really can significantly improve traditional vacuum filtering efficiency.Nineteen sixty-five, the people such as Doe
[2]freezing test of melting process washing wastewater sludge has been carried out at scene, 1966, Lewin and El-Sharply
[1]devise the device of continous way refrigeration operation.1993, monotroded refined
[3]freeze to melt test-results, the most exciting: after the knot that freezed by the mud of water ratio 12% melts, only need simple vacuum hydro-extraction, the water ratio of its mud cake can reach 59%.
First freezed by mud, then melt, its energy consumption is very high.This is also that the method fails the reason of large-scale application.In order to energy-conservation, patent CN200610013004.9 proposes the design utilizing natural temperature to carry out freeze thawing river sludge; Patent CN201410421623.6 proposes the design of similar heat pump; Patent CN201210123173.3 even employs explosive.
In fact, the vaporization heat of water is more than 6 times of heat of fusion, in today, due to the raising required sludge disposal, when having to process mud by the method for heat drying, turn back to select freezing-thawing method to carry out modified pre-treatment to mud, its cost does not become its problem.This patent is exactly a kind of design being easy to through engineering approaches proposed on this basis.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of mud freeze thawing tempering system being easy to through engineering approaches, it is characterized in that: comprise refrigerator, refrigeration chamber, front Heat Room, rear Heat Room, melt room and sludge box, the vaporizer of described refrigerator is positioned at described refrigeration chamber, and the distiller of described refrigerator is positioned at rear Heat Room; Described rear Heat Room is communicated with air;
As preferably, described in melt indoor, use sewage work can flowing water as thermal source;
As preferably, described in melt indoor, use air as thermal source;
Utilize described device, carry out the method that mud freeze thawing is modified, it is characterized in that comprising the following steps:
Step one: the sludge box filling mud is put into described refrigeration chamber, carries out freezing;
Step 2: the sludge box of having frozen is put into front Heat Room, will not freeze sludge box and will put into front Heat Room, carry out heat exchange;
Step 3: the sludge box of not freezing in front Heat Room is put into refrigeration chamber and carried out freezing, puts into rear Heat Room carry out heat exchange by having frozen sludge box in front Heat Room;
Step 4: put into melt room by having frozen sludge box in rear Heat Room, enter to thaw;
Step 5: will melt indoor sludge box and move on to next dehydration procedure, pours out mud in case and loads new mud;
Step 6: repeating step two to step 6.
Compared with prior art, the beneficial effect of a kind of mud freeze thawing tempering system of the present invention is: do not need to add pharmaceutical chemicals, the dewatering performance of sludge after modified is good.
Accompanying drawing explanation
Fig. 1 is a kind of mud freeze thawing tempering system two dimensional structure schematic diagram of the embodiment of the present invention one.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing.
Embodiment one:
Mud freeze thawing tempering system as shown in Figure 1, comprise refrigerator 1, refrigeration chamber 2, front Heat Room 3, rear Heat Room 4, melt room 5 and sludge box 6, the vaporizer 1-1 of refrigerator 1 is positioned at refrigeration chamber 2, and the distiller 1-2 of refrigerator 1 is positioned at rear Heat Room 4; Rear Heat Room 4 is communicated with air; Insulated door 7 is had in system.
Melt in room 5, use the secondary clarifier effluent of sewage work as thermal source;
With reference to Fig. 1, the operation method of the present embodiment comprises the following steps:
Step one: dirt mud box 6 will be filled and put into refrigeration chamber 2, and carry out freezing;
Step 2: the sludge box 6 of having frozen is put into front Heat Room 3, will not freeze sludge box 5 and will put into front Heat Room 3, carry out heat exchange; Because the heat of fusion of water is much larger than specific heat, therefore, with air equality of temperature do not freeze mud, when being cooled to zero degree, frozen mud or zero degree.
Step 3: the sludge box 6 of not freezing in front Heat Room 3 is put into refrigeration chamber 2 and carried out freezing, puts into rear Heat Room 4 carry out heat exchange by having frozen sludge box 6 in front Heat Room 3; Because the temperature of not freezing mud declines, when it is freezing, an energy can be saved; Because the temperature of freezing mud is very low, the temperature in rear Heat Room 4 can be reduced, reduce refrigeration chamber 2 and the temperature difference of rear Heat Room 4, the Energy Efficiency Ratio of refrigerator 1 can be improved.
Step 4: put into melt room 5 by having frozen sludge box 6 in rear Heat Room 4, enter to thaw.Practical experience shows, even in the winter time, the water of sewage work is all flowable, can not freeze; According to statistics, in the winter time, in the sewage work of national most area, secondary clarifier effluent temperature, at about 10 DEG C, may be used for the mud that thaws completely.Therefore, in the present embodiment, the thermal source that thaws of mud selects secondary clarifier effluent.
Step 5: sludge box 6 in room 5 will be melted and move on to next dehydration procedure, and pour out mud in case and load new mud;
Step 6: repeating step two to step 6.
Embodiment two:
The present embodiment two is a kind of Special Circumstances of embodiment one.In the winter time, when temperature is lower than required freezing temp, run in the steps below:
Step one: the sludge box 6 filling mud is put freezing in an atmosphere;
Step 2: the sludge box 6 freezed is put into and melts room 5 and thaw;
Step 3: sludge box 6 in room 5 will be melted and move on to next dehydration procedure, and pour out mud in case and load new mud;
Step 4: repeating step one to step 4.
Winter is optimum season of the present invention, and as can be seen from embodiment two, winter operation does not need cost substantially.
Above embodiment is only exemplary embodiment of the present invention, and be not used in restriction the present invention, protection scope of the present invention is defined by the claims.Those skilled in the art can in essence of the present invention and protection domain, and make various amendment or equivalent replacement to the present invention, this amendment or equivalent replacement also should be considered as dropping in protection scope of the present invention.
Reference:
[1]KatzWJ，MasonDG.Freezingmethodsusedtoconditionactivatedsludge[J].WatSewWks，1970，32(4)：110～122
[2]DoePW，BennD，BaysLR.ThedisposalofwashwaterSludgebyfreezing[J].JInstEaterEng，1965，12(12)：251～259
[3] research [J] that the method for melting carries out sludge dewatering is freezed in monotroded refined utilization. environmental protection science, 1996,22 (1): 21 ~ 24.
Claims (4)
1. a mud freeze thawing tempering system, is characterized in that: comprise refrigerator, refrigeration chamber, front Heat Room, rear Heat Room, melt room and sludge box, the vaporizer of described refrigerator is positioned at described refrigeration chamber, and the distiller of described refrigerator is positioned at rear Heat Room; Described rear Heat Room is communicated with air.
2. a kind of mud freeze thawing tempering system according to claim 1, is characterized in that, described in melt indoor, use sewage work can flowing water as thermal source.
3. a kind of mud freeze thawing tempering system according to claim 1, is characterized in that, described in melt indoor, use air as thermal source.
4. utilize the device described in claim 1, carry out the method that mud freeze thawing is modified, it is characterized in that comprising the following steps:
Step one: the sludge box filling mud is put into described refrigeration chamber, carries out freezing;
Step 2: the sludge box of having frozen is put into front Heat Room, will not freeze sludge box and will put into front Heat Room, carry out heat exchange;
Step 3: the sludge box of not freezing in front Heat Room is put into refrigeration chamber and carried out freezing, puts into rear Heat Room carry out heat exchange by having frozen sludge box in front Heat Room;
Step 4: put into melt room by having frozen sludge box in rear Heat Room, enter to thaw;
Step 5: will melt indoor sludge box and move on to next dehydration procedure, pours out mud in case and loads new mud;
Step 6: repeating step two to step 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510465601.4A CN105060679A (en) | 2015-08-03 | 2015-08-03 | Sludge thawing and conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510465601.4A CN105060679A (en) | 2015-08-03 | 2015-08-03 | Sludge thawing and conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105060679A true CN105060679A (en) | 2015-11-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510465601.4A Pending CN105060679A (en) | 2015-08-03 | 2015-08-03 | Sludge thawing and conditioning system |
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| CN (1) | CN105060679A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996878A (en) * | 2018-10-15 | 2018-12-14 | 哈尔滨商业大学 | Sludge freeze thawing dewatering system and method based on solar semiconductor refrigeration heating technology |
| CN109160705A (en) * | 2018-09-21 | 2019-01-08 | 侯燕楠 | Energy-efficient sludge freezing processing equipment |
| CN110316931A (en) * | 2018-03-28 | 2019-10-11 | 赵德旺 | A method of destroying saturation organic cells tissue |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011550A (en) * | 2013-01-16 | 2013-04-03 | 四川亿思通科技工程有限公司 | Sludge freeze thawing dewatering treating system and treating method using system |
| CN104098239A (en) * | 2014-08-04 | 2014-10-15 | 饶宾期 | Sewage sludge treatment method |
| CN104193140A (en) * | 2014-08-25 | 2014-12-10 | 陈士强 | Energy-saving refrigerating pretreatment device for deep sludge dehydration of sewage treatment plant |
-
2015
- 2015-08-03 CN CN201510465601.4A patent/CN105060679A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103011550A (en) * | 2013-01-16 | 2013-04-03 | 四川亿思通科技工程有限公司 | Sludge freeze thawing dewatering treating system and treating method using system |
| CN104098239A (en) * | 2014-08-04 | 2014-10-15 | 饶宾期 | Sewage sludge treatment method |
| CN104193140A (en) * | 2014-08-25 | 2014-12-10 | 陈士强 | Energy-saving refrigerating pretreatment device for deep sludge dehydration of sewage treatment plant |
Non-Patent Citations (1)
| Title |
|---|
| 单连斌: "利用冻结融解法进行污泥脱水的研究", 《环境保护科学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110316931A (en) * | 2018-03-28 | 2019-10-11 | 赵德旺 | A method of destroying saturation organic cells tissue |
| CN109160705A (en) * | 2018-09-21 | 2019-01-08 | 侯燕楠 | Energy-efficient sludge freezing processing equipment |
| CN109160705B (en) * | 2018-09-21 | 2019-11-01 | 营口宇佳科技有限公司 | Energy-efficient sludge freezing processing equipment |
| CN108996878A (en) * | 2018-10-15 | 2018-12-14 | 哈尔滨商业大学 | Sludge freeze thawing dewatering system and method based on solar semiconductor refrigeration heating technology |
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Application publication date: 20151118 |
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