CN201605219U - Sludge heating-conditioning device in city - Google Patents
Sludge heating-conditioning device in city Download PDFInfo
- Publication number
- CN201605219U CN201605219U CN200920260307XU CN200920260307U CN201605219U CN 201605219 U CN201605219 U CN 201605219U CN 200920260307X U CN200920260307X U CN 200920260307XU CN 200920260307 U CN200920260307 U CN 200920260307U CN 201605219 U CN201605219 U CN 201605219U
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- sludge
- heating
- mud
- heat
- conditioning
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Abstract
The utility model discloses a sludge heating-conditioning device in city for heating-conditioning the treated sludge in city. The shape of the device is a cylindrical steel heat-exchanging container, and the outside is covered by thermal-insulating material. A heat-exchanging pipe arranged in the heat-exchanging container is a spiral coil. After the solid-liquid separation and concentration of the sludge, a sludge heating device is added to heat the concentrated sludge to 120-150 DEG; the high temperature is used for conditioning the concentrated sludge, so as to lead particles of the sludge to be condensed and reduce the affinity between solid and water for the sludge and release capillary water and hydrated water contained in sludge cells, thereby enhancing dewaterability of aerobic digested sludge and leading the sludge to obtain low water-content rate lower than 60%. A coiled sludge secondary heating device is used to heat and condition the sludge, the structure of the heating device is of the coiled secondary heat-exchanging structure. The heat recovery is conducted conveniently, and is applied to the sludge passing through the special digestion process, therefore, the heating efficiency of the sludge is high, and the energy consumption for sludge conditioning is saved.
Description
Technical field
The utility model relates to a kind of at the municipal sludge heating and regulating device after " the automatic separating technology of well formula internal recycle sludge aerobic digestion solid-liquid " processing, by the mud heating and regulating is reached the raising dewatering performance of sludge, obtain the target of low-water-content dewatered sludge.
Background technology
At present, known dewatering through municipal sludge after the aerobic sigestion is relatively poor.Can change the structure of mud by the chemical conditioning that adds chemical agent, improve dewatering performance of sludge, but because it can not change sludge quality, most of combination water and water of hydration in the mud can not be removed, the water ratio of final mud still reaches more than 75%.
The physics conditioning of application of heat can change sludge nature, and solid is condensed, and destroys colloidal structure, reduces the avidity of sewage sludge solid and water, makes capillary water, water of hydration in the mud be able to a large amount of removals, effectively reduces the water ratio of final mud.But for the thickened sludge after the common aerobic sigestion, still contain the moisture more than 95% in the mud, to the mud heating and regulating time, a large amount of heats will be by the contained moisture absorption of mud, and the efficient of heating is low, and energy consumption is big, has seriously restricted its application.And traditional sludge heating unit complex structure is difficult to operation and maintenance, has also restricted the application of mud heating and regulating greatly.
The utility model content
For the dewatering of the municipal sludge after improving " well formula internal recycle sludge aerobic digestion solid-liquid automatic separating technology " and handling, the utility model provides a kind of heating and regulating device that utilizes mud used heat and high-temperature steam digested sludge to be carried out two sections heating.
Owing to handle back mud through " the automatic separating technology of well formula internal recycle sludge aerobic digestion solid-liquid ", finished the concentration process of mud, the water ratio of mud has been reduced to below 90%, make when mud heated, the required heat of heating moisture significantly reduces, uses and the efficient that heats mud thereby can improve heat greatly.
And in order to overcome the big deficiency of mud preheating conditioning power consumption, a kind of coil pipe two-stage heating-type mud heating unit is provided among the utility model embodiment, this heating unit with mud heating and energy recovery comprehensively in a device, simple in structure, convenient operating maintenance.
The technical scheme that its technical problem that solves the utility model adopts is: for passing through the mud that " the automatic separating technology of well formula internal recycle sludge aerobic digestion solid-liquid " handled, set up a cover coil pipe mud two-stage heating unit.Utilize high-temperature steam and mud waste heat recovery that the temperature of thickened sludge is increased to 120-150 ℃, realize heat conditioning mud.
A kind of municipal sludge heating and regulating device is characterized in that: its profile is the cylindrical steel heat exchange container, the outer wrap lagging material.
In the described heat exchange container heat transfer tube is arranged, described heat transfer tube is a spiral pipe.
It comprises the two-stage heating space.
It is connected with hot mud return line.
What heating means adopted is that the heating of collection mud is the mud heating unit of one with waste heat recovery.It utilizes the high temperature mud and the mud to be heated that reclaim to carry out heat exchange realization first step mud/mud heating earlier, and later use high-temperature steam and mud to be heated carry out heat exchange and carries out second stage vapour/mud heating.
The beneficial effects of the utility model are, by heating sewage sludge solid are condensed, and destroy the colloidal structure of mud granule, reduce the avidity of sewage sludge solid and water, improve the dewatering of aerobic sigestion mud, make the final water ratio of dewatered sludge be lower than 60%.
Utilize the waste heat recovery in the high temperature mud that thickened sludge is carried out the heating first time,, utilize high-temperature steam that mud is carried out heating the second time to 130-150 ℃ immediately to 70-80 ℃.
And in this utility model, the heat energy utilization rate height of mud heating; And the waste heat recovery of heating installation realization mud has been saved energy consumption effectively.So whole required energy requirement is little.Processing method and equipment configuration are simple to operation.
Description of drawings
The utility model comprises following accompanying drawing:
Fig. 1 is a process flow sheet of the present utility model.
Fig. 2 is a mud heating unit front view in the utility model.
1. mud heating units advance dredge pump among the figure, 2. mud heating unit feed-pipe ring flange, 3. one-level mud heating zone, 4. one-level heating tube, 5. one-level, secondary heating zone communicating pipe, 6. secondary mud heating zone, 7. secondary heating tube, 8. butterfly valve, 9. high temperature mud recovery tube, 10. cooling steam delivery pipe, 11. mud heating unit mud extraction ozzles, 12. mud heating unit shell thermal insulation layer, 13. mud heating unit sleeve, 14. bolts connect, 15. mud heating unit end plates, 16. support, 17. high temperature mud recovery tube thermal insulation layers.
Embodiment
With embodiment the utility model is described in further detail with reference to the accompanying drawings below:
In method of attachment embodiment illustrated in fig. 1 and operational scheme, the mud heating unit advances dredge pump (1) and links to each other with mud heating unit feed-pipe ring flange (2) by pipeline, mud to be heated is delivered to heating unit one-level mud heating zone (3), the high temperature mud of one-level mud heating tube (4) medium for reclaiming, high temperature mud and mud heat exchange to be heated are carried out the heating first time to mud heat exchange to be heated; Enter secondary mud heating zone (6) through mud after the heating for the first time by one-level, secondary heating zone joint flange and gate valve (5), secondary heating tube (7) is installed in (6), (7) medium is a high-temperature steam, high-temperature steam and (6) middle mud heat exchange, mud is carried out the heating second time, reach preset temperature, cooling steam discharges from cooling steam delivery pipe (10); Finishing heating back mud refluxes from high temperature mud recovery tube (9) and enters (4) and as thermal source charging mud is carried out first time and heat.(4) mud extraction is a mud of finishing heating and regulating in, discharges from mud heating unit mud extraction ozzle (11), enters follow-up dehydration workshop section.
In coil tube type mud secondary heating unit structure embodiment illustrated in fig. 2, device is outside by end plate (15), sleeve (13), and high temperature mud return line (9) three parts are formed.In (15), (13), (9) outside are wrapped up heat preserving and insulating material respectively and are formed box hat thermal insulation layer (12), steel pipe thermal insulation layer (17).Wherein be connected by bolt (14) between (15) and (13), be connected by flange between (9) and (13).Being welded with ring flange (2) on (15) makes whole heating unit be connected with outside feed-pipe.Heating unit inside is heating region, is divided into first step mud/mud heating zone (3) and second stage vapour/mud heating zone (6), and two heating zone link to each other with gate valve (5) by one-level, secondary heating zone joint flange; High-temperature medium is carried to coil pipe and is carried in each heating zone, and wherein equipment one-level heating siphunculus (4) in (3) is equipped secondary heating tube (7) in (6).(4) the mud discharge that links to each other with mud extraction ozzle (11) and will finish heating by flange.The secondary heating tube is connected with butterfly valve (8) by flange and links to each other with the external steam main pipe line.By the amount of control butterfly valve (8) control high-temperature steam, thus the amplitude of control mud heating.
Mud heating unit agent structure is a concentric(al) circles.Device by support (16) support fixation on ground.First and second heating tube (4), (7) center of circle conllinear.High temperature mud return line (9) is positioned at device top.Those skilled in the art do not break away from essence of the present utility model and spirit, can there be the various deformation scheme to realize the utility model, the above only is the preferable feasible embodiment of the utility model, be not so limit to interest field of the present utility model, the equivalent structure that all utilization the utility model specification sheetss and accompanying drawing content are done changes, and is included within the interest field of the present utility model.
Claims (4)
1. municipal sludge heating and regulating device, it is characterized in that: its profile is the cylindrical steel heat exchange container, the outer wrap lagging material.
2. a kind of municipal sludge heating and regulating device according to claim 1, its feature also is: in the described heat exchange container heat transfer tube is arranged, described heat transfer tube is a spiral pipe.
3. a kind of municipal sludge heating and regulating device according to claim 1, its feature also is: it comprises the two-stage heating space.
4. a kind of municipal sludge heating and regulating device according to claim 1, its feature also is: it is connected with hot mud return line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920260307XU CN201605219U (en) | 2009-11-11 | 2009-11-11 | Sludge heating-conditioning device in city |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920260307XU CN201605219U (en) | 2009-11-11 | 2009-11-11 | Sludge heating-conditioning device in city |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201605219U true CN201605219U (en) | 2010-10-13 |
Family
ID=42949926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920260307XU Expired - Fee Related CN201605219U (en) | 2009-11-11 | 2009-11-11 | Sludge heating-conditioning device in city |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201605219U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108479149A (en) * | 2018-04-13 | 2018-09-04 | 王忠江 | A kind of municipal sludge processing more gradients coupling dehydration device |
| CN108751656A (en) * | 2017-12-13 | 2018-11-06 | 中山市和智电子科技有限公司 | A kind of sludge dehydration device using compost reactor high-temperature gas |
-
2009
- 2009-11-11 CN CN200920260307XU patent/CN201605219U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751656A (en) * | 2017-12-13 | 2018-11-06 | 中山市和智电子科技有限公司 | A kind of sludge dehydration device using compost reactor high-temperature gas |
| CN108479149A (en) * | 2018-04-13 | 2018-09-04 | 王忠江 | A kind of municipal sludge processing more gradients coupling dehydration device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Blue Phoenix Environmental Technology Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20121111 |