CN105481224A - Air source sludge drying method - Google Patents
Air source sludge drying method Download PDFInfo
- Publication number
- CN105481224A CN105481224A CN201610039307.1A CN201610039307A CN105481224A CN 105481224 A CN105481224 A CN 105481224A CN 201610039307 A CN201610039307 A CN 201610039307A CN 105481224 A CN105481224 A CN 105481224A
- Authority
- CN
- China
- Prior art keywords
- drying method
- sludge drying
- mud
- air
- sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses an air source sludge drying method. The air source sludge drying method comprises the following steps: mixing 3-5% of a soil conditioner in percentage by weight in raw sludge, and stirring at room temperature and normal pressure for 3-5 minutes; uniformly spreading the stirred sludge in a sun lounge, and using a ground heating method to continuously dry the sludge on the ground for 8-11 h till the moisture content of the sludge is less than or equal to 40%, wherein the ground heating adopts water as the medium, heat of the ground heating comes from compressed air energy, and through compression of air, heat in the air can be transferred to water of the ground heating to enable the water temperature to be increased to +/- 60 DEG C. The method has the advantages that more energy can be saved.
Description
Technical field
The present invention relates to technical field of sludge treatment, especially relate to a kind of air energy sludge drying method.
Background technology
Mud is the waste produced in water treatment procedure, and mud annual production domestic is at present at about 4,000 ten thousand tons.A large amount of mud can not get effective disposal, not only causes the pollution of environment, is also the waste of resource simultaneously.Because moisture percentage in sewage sludge is higher, generally 80% to 90%, therefore appearance, decrement are subtracted to mud, and recycling is the effective method of sludge disposal.The major technique of mud decrement has the mode such as electrically heated oven dry, gas heating oven dry.These modes consume mass energy, although can solve the decrement problem of mud, bring burden to environment simultaneously.Therefore, how reducing a large amount of losses of the energy in mud drying process, is a difficult problem urgently to be resolved hurrily in sludge drying process.
Summary of the invention
The object of this invention is to provide a kind of air energy sludge drying method, it has comparatively energy-conservation feature.
The technical solution adopted in the present invention is: air energy sludge drying method, comprises the following steps:
1) by weight percentage, in primary mud, mix the soil improvement agent of 3% ~ 5%, stir 3 ~ 5 minutes at normal temperatures and pressures;
2) mud after stirring is evenly paved in glass sunlight house, ground adopts floor heating heating means to dry mud, floor heating take water as medium, the origin of heat of floor heating is in pressurized air energy, and pressurized air can make water temperature rise to 60 ± 5 DEG C in the transfer of heat in air to the water of floor heating, continuous drying 8 ~ 11h, until the water ratio of mud is lower than 40%.
Described soil improvement agent is magnesium system inorganic mineral.
The particle diameter of described soil improvement agent is less than 120um.
The ceiling of described glass sunlight house adopts toughened glass preparation.
The present invention is advantageously: comparatively energy-conservation.Air energy sludge drying method of the present invention fully mixes with mud by adding soil improvement agent, containing calcium oxide in soil improvement agent, the cell walls of Microbial Communities in Activated Sludge can be abolished after this material contacts with mud, kill cell, be easy to the volatilization of cellular water.Meanwhile, mud is divided in glass sunlight house, for sludge drying provides effective envrionment conditions and room temp, promotes that sludge drying carries out fast.And, adopt empty compressed gas as the effective cleaning energy, the thermal source in air can be absorbed, by heat-conducting medium, the transfer of heat in air in water, as the thermal source of sludge drying.So, the consumption of the energy is greatly reduced.
Embodiment
Embodiment, air energy sludge drying method, comprises the following steps:
1) by weight percentage, in primary mud, mix the soil improvement agent of 3% ~ 5%, stir 3 ~ 5 minutes at normal temperatures and pressures.Such as, the addition of soil improvement agent is 3%, 4% or 5% of primary mud gross weight; The time of stirring is 3,4 or 5 minutes, fully mixes to make primary mud and soil improvement agent.In the present embodiment, this soil improvement agent adopts magnesium system inorganic mineral, and the particle diameter of soil improvement agent is less than 120um.
2) evenly paved in glass sunlight house by the mud after stirring, ground adopts floor heating heating means to dry mud.Wherein, the ceiling of glass sunlight house adopts toughened glass preparation; Floor heating take water as medium, and the origin of heat of floor heating is in pressurized air energy, and pressurized air can make water temperature rise to 60 ± 5 DEG C in the transfer of heat in air to the water of floor heating, and continuous drying 8 ~ 11h, until the water ratio of mud is lower than 40%.Such as, water temperature controls as being 55 ° of C, 60 ° of C or 65 ° C, and the time of continuous drying is 8h, 10h or 11h.
Through actual verification, after adopting air energy sludge drying method method of the present invention, the consumption of its energy dries average reduction by 20% relative to electrically heated, dries average lower by 25% relative to gas heating.
The foregoing is only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. air energy sludge drying method, comprises the following steps:
1) by weight percentage, in primary mud, mix the soil improvement agent of 3% ~ 5%, stir 3 ~ 5 minutes at normal temperatures and pressures;
2) mud after stirring is evenly paved in glass sunlight house, ground adopts floor heating heating means to dry mud, floor heating take water as medium, the origin of heat of floor heating is in pressurized air energy, and pressurized air can make water temperature rise to 60 ± 5 DEG C in the transfer of heat in air to the water of floor heating, continuous drying 8 ~ 11h, until the water ratio of mud is lower than 40%.
2. air energy sludge drying method according to claim 1, is characterized in that: described soil improvement agent is magnesium system inorganic mineral.
3. air energy sludge drying method according to claim 1, is characterized in that: the particle diameter of described soil improvement agent is less than 120um.
4. air energy sludge drying method according to claim 1, is characterized in that: the ceiling of described glass sunlight house adopts toughened glass preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610039307.1A CN105481224A (en) | 2016-01-21 | 2016-01-21 | Air source sludge drying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610039307.1A CN105481224A (en) | 2016-01-21 | 2016-01-21 | Air source sludge drying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105481224A true CN105481224A (en) | 2016-04-13 |
Family
ID=55668557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610039307.1A Pending CN105481224A (en) | 2016-01-21 | 2016-01-21 | Air source sludge drying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105481224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912172A (en) * | 2019-03-10 | 2019-06-21 | 巩延岳 | One kind recycling waste heat of cement kiln tail gas desiccation disposition sludge producing processes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416241A2 (en) * | 2002-10-30 | 2004-05-06 | PAL-Bullermann GmbH | Apparatus for drying sludges |
| CN201634558U (en) * | 2010-03-15 | 2010-11-17 | 王志恒 | Environment-friendly and energy-saving sludge drying treatment device for solar energy type greenhouse |
| CN102285748A (en) * | 2011-06-08 | 2011-12-21 | 天津城市建设学院 | Method and equipment for drying sludge by utilizing waste heat flue gas/solar energy |
| CN104973749A (en) * | 2015-07-10 | 2015-10-14 | 盐城琛丹低碳技术研究院有限公司 | Sludge solidification method |
-
2016
- 2016-01-21 CN CN201610039307.1A patent/CN105481224A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1416241A2 (en) * | 2002-10-30 | 2004-05-06 | PAL-Bullermann GmbH | Apparatus for drying sludges |
| CN201634558U (en) * | 2010-03-15 | 2010-11-17 | 王志恒 | Environment-friendly and energy-saving sludge drying treatment device for solar energy type greenhouse |
| CN102285748A (en) * | 2011-06-08 | 2011-12-21 | 天津城市建设学院 | Method and equipment for drying sludge by utilizing waste heat flue gas/solar energy |
| CN104973749A (en) * | 2015-07-10 | 2015-10-14 | 盐城琛丹低碳技术研究院有限公司 | Sludge solidification method |
Non-Patent Citations (1)
| Title |
|---|
| 徐占发: "《建筑节能常用数据速查手册》", 30 September 2006, 中国建材工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912172A (en) * | 2019-03-10 | 2019-06-21 | 巩延岳 | One kind recycling waste heat of cement kiln tail gas desiccation disposition sludge producing processes |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160413 |