FR2940800A1 - Procede de chaulage des boues - Google Patents
Procede de chaulage des boues Download PDFInfo
- Publication number
- FR2940800A1 FR2940800A1 FR0950076A FR0950076A FR2940800A1 FR 2940800 A1 FR2940800 A1 FR 2940800A1 FR 0950076 A FR0950076 A FR 0950076A FR 0950076 A FR0950076 A FR 0950076A FR 2940800 A1 FR2940800 A1 FR 2940800A1
- Authority
- FR
- France
- Prior art keywords
- sludge
- mixing
- zone
- lime
- transport
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
- B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
- B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
- B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
- B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
- B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
- B29B7/489—Screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/54—Screws with additional forward-feeding elements
-
- 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
- C02F11/004—Sludge detoxification
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/143—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances
- C02F11/145—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using inorganic substances using calcium compounds
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
Description
Claims (8)
- REVENDICATIONS1. Procédé de post-traitement de boue, comprenant une étape de chaulage de la boue, caractérisé par le fait que ladite étape de chaulage comprend le fait de mélanger la boue avec de la chaux vive dans un fourreau à double vis corotatives.
- 2. Procédé de post-traitement de boue selon la revendication 1, dans lequel la boue est défloculée avant d'être introduite dans le fourreau.
- 3. Procédé de post-traitement de boue selon l'une des revendications précédentes, dans lequel les vis (4) dudit fourreau présentent successivement, depuis une entrée d'alimentation en boue vers une sortie de boue chaulée, une première zone de transport (5), une première zone de malaxage (6), une deuxième zone de transport (7) et une deuxième zone de malaxage (8), le fourreau présentant une entrée d'alimentation en chaux débouchant au niveau de la deuxième zone de transport.
- 4. Procédé de post-traitement de boue selon l'une des revendications précédentes, dans lequel le rapport entre d'une part la masse de chaux et d'autre part la masse totale de chaux et de boue introduite dans le fourreau est inférieur à 20%.
- 5. Dispositif de mélange convenant pour la mise en oeuvre du procédé de traitement selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un fourreau à double vis corotatives, les vis (4) dudit fourreau présentant une alternance de zones de transport (5, 7) et de zone de malaxage (6, 8), le fourreau présentant une entrée d'alimentation en chaux.
- 6. Dispositif de mélange selon la revendication précédente, dans lequel ladite alternance de zones de transport (5,
- 7) et de zone de malaxage (6,
- 8) présentent successivement, depuis l'entrée d'alimentation en boue vers la sortie de boue chaulée, une première zone de transport (5), une première zone de malaxage (6), une deuxième zone de transport (7) et une deuxième zone de malaxage (8), l'entrée d'alimentation en chaux débouchant au niveau de la deuxième zone de transport.35
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0950076A FR2940800B1 (fr) | 2009-01-08 | 2009-01-08 | Procede de chaulage des boues |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0950076A FR2940800B1 (fr) | 2009-01-08 | 2009-01-08 | Procede de chaulage des boues |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2940800A1 true FR2940800A1 (fr) | 2010-07-09 |
FR2940800B1 FR2940800B1 (fr) | 2012-05-25 |
Family
ID=40933316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0950076A Expired - Fee Related FR2940800B1 (fr) | 2009-01-08 | 2009-01-08 | Procede de chaulage des boues |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2940800B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016097664A1 (fr) | 2014-12-19 | 2016-06-23 | Institut National De Recherche En Sciences Et Technologies Pour L'environnement Et L'agriculture | Dispositif et procédé pour le traitement de boue |
CN106082417A (zh) * | 2016-07-29 | 2016-11-09 | 重庆鹏雷汽车配件有限公司 | 电镀液清理装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19742977A1 (de) * | 1997-09-29 | 1999-04-01 | Rethmann Wasserwirtschaft Gmbh | Verfahren zur Entwässerung und Trocknung von wasserhaltigen Substanzen |
EP1832407A1 (fr) * | 2006-03-10 | 2007-09-12 | The Japan Steel Works, Ltd. | Extrudeuse-malaxeuse |
-
2009
- 2009-01-08 FR FR0950076A patent/FR2940800B1/fr not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19742977A1 (de) * | 1997-09-29 | 1999-04-01 | Rethmann Wasserwirtschaft Gmbh | Verfahren zur Entwässerung und Trocknung von wasserhaltigen Substanzen |
EP1832407A1 (fr) * | 2006-03-10 | 2007-09-12 | The Japan Steel Works, Ltd. | Extrudeuse-malaxeuse |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016097664A1 (fr) | 2014-12-19 | 2016-06-23 | Institut National De Recherche En Sciences Et Technologies Pour L'environnement Et L'agriculture | Dispositif et procédé pour le traitement de boue |
FR3030486A1 (fr) * | 2014-12-19 | 2016-06-24 | Inst Nat De Rech En Sciences Et Tech Pour L'environnement Et L'agriculture | Dispositif et procede pour le traitement de boue |
CN106082417A (zh) * | 2016-07-29 | 2016-11-09 | 重庆鹏雷汽车配件有限公司 | 电镀液清理装置 |
Also Published As
Publication number | Publication date |
---|---|
FR2940800B1 (fr) | 2012-05-25 |
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