WO2010051734A1 - Procédé d'accélération des opérations de sédimentation, concentration et essorage de boue au moyen de vibrations - Google Patents

Procédé d'accélération des opérations de sédimentation, concentration et essorage de boue au moyen de vibrations Download PDF

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Publication number
WO2010051734A1
WO2010051734A1 PCT/CN2009/074679 CN2009074679W WO2010051734A1 WO 2010051734 A1 WO2010051734 A1 WO 2010051734A1 CN 2009074679 W CN2009074679 W CN 2009074679W WO 2010051734 A1 WO2010051734 A1 WO 2010051734A1
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WIPO (PCT)
Prior art keywords
sludge
vibration
concentration
force
sedimentation
Prior art date
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Ceased
Application number
PCT/CN2009/074679
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English (en)
Chinese (zh)
Inventor
向连城
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Individual
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Individual
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Publication of WO2010051734A1 publication Critical patent/WO2010051734A1/fr
Anticipated expiration legal-status Critical
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/28—Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
    • B01D21/283—Settling tanks provided with vibrators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • 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
    • C02F11/15—Treatment of sludge; Devices therefor by de-watering, drying or thickening by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves

Definitions

  • the invention relates to sludge treatment in sewage treatment, including sludge sedimentation, concentration, dehydration treatment, and similar methods of sedimentation, concentration, and dehydration of sludge in lake and river dredging processes.
  • the method of the present invention is used to increase the sludge sedimentation, concentration, and dehydration effects. Background technique
  • the activated sludge process is currently the most widely used sewage biological treatment technology in the world, but it has always had a big drawback, that is, it will produce a large amount of excess sludge.
  • the amount of excess sludge produced is generally 0.3% - 0.5% (in terms of water content of 97%), which is very surprising.
  • the investment and operating costs of sludge treatment are huge, accounting for 25 % ⁇ 65 % of the investment and operating costs of the entire wastewater treatment plant, which has become a heavy burden for urban sewage treatment plants. Sludge produced in the biochemical treatment of sewage will cause secondary pollution to the environment if not treated and disposed of effectively.
  • the sludge sedimentation tank, the sludge concentration tank and the sludge dewatering machine are used to separately precipitate, concentrate and dewater the sludge generated in the sewage treatment, so that the final sludge volume is reduced, and the sludge is facilitated.
  • the sludge has a moisture content of more than 80% after sedimentation, concentration and mechanical dewatering, which cannot meet the requirements for sanitary landfill and incineration of sludge.
  • Vibration is one of the most basic forms of motion in nature, such as the lack of moon in nature, the fluctuation of tides, the vibration of the earth's crust, the beating of strings in human life, the swinging of clocks, etc.; the growth of population in human society Attenuation, growth and attenuation of speed in the process of social and economic development can be summarized into different forms of vibration. Vibration is also used in engineering by humans. Vibration technology is a technology with extensive application value developed in the second half of the 20th century. This technology is rapidly developing in various fields, vibration transmission technology, vibration screening technology, vibration breaking technology. , vibration compaction technology, vibrating technology, vibration diagnostic technology, etc. are widely used in many industries and departments. Summary of the invention
  • the method adopted by the invention is: adding a vibration source composed of a drive motor to drive the vibration device or a vibration source for vibrating the sludge in the sludge of natural sludge precipitation, concentration, sludge mechanical concentration and dehydration process, through vibration
  • the source generates an exciting force or a vibration force in accordance with the direction of gravity or pressing force.
  • the vibration force breaks the relatively stable state of the sludge and water, promotes the separation of the muddy water, accelerates the sedimentation and concentration of the sludge. , the speed of dehydration.
  • the volume of the tank body is large, and in order to transmit the vibration force to the sludge of the whole tank body, the tank body is made of metal, organic polymer material or wood.
  • the rod connection is formed into a body grid structure, and the vibration device composed of the drive motor drives the vibration device to be connected with the three-dimensional grid frame, and the vibration force consistent with the gravity direction is transmitted to the sludge of the entire pool body through the three-dimensional grid, the sludge is in Under the joint action of vibration force and gravity, the separation speed of muddy water is accelerated, and the purpose of improving sludge sedimentation and concentration efficiency is achieved.
  • a three-dimensional grid is installed in a part of the tank body, and the three-dimensional grid rotates together with the scraper to transmit the vibration force to the entire pool body.
  • sludge belt filter press In the sludge belt filter press, two rows of parallel drive squeeze wheels of the same diameter are installed, each squeeze wheel is pressed against two squeeze wheels on the other row, or one large squeeze wheel A plurality of small planetary gears are formed to form a squeeze wheel, and the filter cloth of the transmission passes through the two rows of squeeze wheels, and the sludge sandwiched between the filter cloths is squeezed when passing through the two squeeze wheels, leaving the squeeze wheel The pressure is reduced, the sludge is repeatedly squeezed and relaxed periodically, and vibration is generated in the sludge. In the mixture of sludge and water, the vibration force breaks the relatively stable state of the sludge and water, promotes the separation of the mud and water, and accelerates. Concentration and dewatering of sludge.
  • a vibration device composed of a drive motor to drive the exciter is mounted on the sludge extrusion surface to generate a vibration force in accordance with the extrusion direction.
  • the sludge separation speed is accelerated, and the purpose of improving sludge concentration and dewatering efficiency is achieved.
  • Figure 1 is a schematic diagram of the addition of a vibrating device to sludge precipitation, concentration and dewatering.
  • 1 for sludge sedimentation, concentration, dewatering 2 is sedimentation, concentration, dewatering sludge, 3 is the supernatant, and 4 is a vibration device composed of a drive motor to drive the exciter.
  • FIG. 2 is a schematic view of a sludge sedimentation and concentration tank added to a vibrating device.
  • 1 is a sludge sedimentation and concentration tank
  • 4 is a vibration device composed of a drive motor driven vibration exciter connected to the three-dimensional grid
  • 5 is a three-dimensional grid
  • 6 is a bracket fixed on the pool body or scraped Mud girders.
  • FIG. 3 is a schematic view of a sludge belt type compactor equipped with two rows of parallel drive squeeze wheels.
  • 7 is the inlet of the sludge to be concentrated and dehydrated
  • 8 is the dried sludge after concentration and dehydration
  • 9 is the general squeeze wheel
  • 10 is the two rows of parallel drive squeeze wheels
  • 11 is the filter cloth.
  • FIG. 4 is a schematic view of a sludge plate frame filter press incorporating a vibrating device.
  • 4 is a vibration device composed of a vibration exciter
  • 7 is the inlet of the sludge to be concentrated and dehydrated
  • 8 is the dried sludge after concentration and dehydration
  • 12 is the filter plate, the filter frame and the filter cloth
  • 13 For the beam, push the plate up to 14 and 15 for the pressure plate.
  • a vibration device 4, 3 is added as a supernatant liquid, and a vibration device 4 composed of a vibration motor driven by a drive motor generates a vibration force, and the vibration force and gravity act together to accelerate the pollution.
  • the sludge concentration tank has a diameter of 20 meters and a height of 6 meters, and a rotary scraping device is arranged in the sludge concentration tank.
  • a rod made of metal, organic polymer material or wood is used to form a body grid structure 5, and the three-dimensional grid is divided into two parts, each part is 8. 0 meters long, 3 meters high, 2 meters wide, three-dimensional
  • the spacing between the rod and the rod in the grid is 0.5 m.
  • the three-dimensional grid is arranged in the sludge area at the lower part of the sludge thickening tank, located at the lower part of the scraping beam and the upper part of the scraping board.
  • the vibrating device 4 is composed of a driving motor and a planar link mechanism driven thereby.
  • a crank slider mechanism is preferred, and the driving motor is driven to decelerate to drive the crank to rotate, and the two ends of the connecting rod are respectively connected with the crank and the slider.
  • the slider connected to the connecting rod reciprocates as a vibration source.
  • the upper part of the vibrating device 4 is detachably fixed to the squeegee beam 6 and the lower part is detachably connected to the three-dimensional grid structure.
  • the driving motor rotates to drive the vibration device 4 to work, and the slider portion drives the three-dimensional grid 5 to reciprocate up and down.
  • the vibration frequency ranges from 0. 05 to 2 Hz, the amplitude ranges from 5 to 20 cm, and the direction of gravity
  • the uniform vibration force is transmitted to the sludge in the area where the three-dimensional grid is located through the three-dimensional grid, and the three-dimensional grid rotates together with the scraper to transmit the vibration force to the entire pool body. Under the combined action of vibration force and gravity, the separation speed of muddy water is accelerated and improved. The purpose of sludge sedimentation and concentration efficiency.
  • the front section of the belt filter press adopts the general squeeze wheel 9 (the squeeze force is generated by the filter cloth and the squeeze wheel), and the rear section adopts 9
  • Two rows of parallel drive squeeze wheels 10 of the same diameter wheel the diameter of the wheel is in the range of 10 ⁇ 30cm, each squeeze wheel is pressed against the two squeeze wheels on the other row, and the two rows of squeeze wheels 6 ⁇ 3. 0 ⁇
  • the filter cloth 11 is passed through the two rows of squeeze wheels, the width of the filter cloth 1 is 0. 6 ⁇ 3. 0m.
  • the diluted sludge 7 first presses a part of the water through the general pressing wheel 9, and then enters the pressing wheel 10 proposed by the present invention, and the sludge sandwiched between the filter cloths 11 passes through two extrusions.
  • the pressure roller is squeezed, the time interval of the sludge on the filter cloth passing through the two adjacent pressing points is less than or equal to 4 seconds, the pressure is reduced when leaving the squeeze wheel, and the sludge is repeatedly squeezed periodically and Relaxation, vibration in the sludge, vibration in the mixture of sludge and water breaks the relatively stable state of sludge and water, promotes the separation of mud and water, accelerates the concentration and dehydration of sludge. Finally, the dried sludge 8 dehydrated by the squeeze wheel 10 is discharged.
  • an electric vibration exciter 4 is installed between the plate frame filter press thrust plate 14 and the filter plate, the filter frame and the filter cloth 12, in the pressure plate 15 and the filter plate,
  • An electric vibration exciter 4 is installed between the filter frame and the filter cloth 12.
  • the electric vibration exciter is mounted in the same manner as the filter plate, the filter frame and the filter cloth 12, and is suspended from the beam 13 of the plate and frame filter press to make the electric excitation
  • the vibrator 4 can move along the beam 13 .
  • two electric vibration exciters installed between the plate frame filter press thrust plate 14 and the pressure plate 15 and the filter plate, the filter frame and the filter cloth 12 are provided. 4, the vibration force is equal in magnitude, frequency and amplitude, and the vibration force is in the opposite direction.
  • the diluted sludge is pressed into the filter plate, the filter frame and the filter cloth 12 by the sludge pump 7 through the sludge pump.
  • the hydraulic pump of the plate frame filter press is activated, and the pressing plate 15 is pressed in the direction of the thrust plate 14, the filter plate, the filter frame and the filter cloth 12 between the thrust plate 14 and the pressing plate 15, and the electric vibration excitation
  • the devices 4 are pressed together. Then, the electric vibration exciter is turned on, and the electric vibration exciter generates a vibration force that is consistent with the pressing direction of the pressing plate.
  • the separation speed of the mud water is accelerated, and the sludge concentration and dehydration are improved.
  • the purpose of efficiency After the dewatering of the sludge plate frame filter press is completed, the electric vibration exciter is turned off, the hydraulic pump is turned off, the filter plate, the filter frame and the filter cloth are opened, and the dry sludge 8 is peeled off.
  • the vibration amplitude of the electric vibration exciter is greater than 0. 25Hz and the amplitude is less than 5 cm.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)

Abstract

L'invention concerne un procédé d'accélération des opérations de sédimentation, concentration et essorage d'une boue (2) au moyen de vibrations. Une source (4) de vibrations est installée dans la boue (2) qui doit être sédimentée, concentrée et essorée, de telle sorte que la boue est mise en vibration par la source de vibrations (4). La stabilité du mélange de boue et d'eau est détruite sous l'action de la force des vibrations et de la gravitation ou de la force des vibrations et d'une force de poussée, ce qui améliore la séparation de la boue et de l'eau et accélère la sédimentation, la concentration et l'essorage de la boue (2).
PCT/CN2009/074679 2008-11-05 2009-10-29 Procédé d'accélération des opérations de sédimentation, concentration et essorage de boue au moyen de vibrations Ceased WO2010051734A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810172394 2008-11-05
CN200810172394.3 2008-11-05

Publications (1)

Publication Number Publication Date
WO2010051734A1 true WO2010051734A1 (fr) 2010-05-14

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PCT/CN2009/074679 Ceased WO2010051734A1 (fr) 2008-11-05 2009-10-29 Procédé d'accélération des opérations de sédimentation, concentration et essorage de boue au moyen de vibrations

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WO (1) WO2010051734A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107337329A (zh) * 2017-08-04 2017-11-10 南京航空航天大学 水泥窑协同处置工业污泥的全密闭储存及预处理装置
CN109126230A (zh) * 2018-09-28 2019-01-04 湖南娄底泰阳科技有限公司 一种集成型旋转式污料原位再生装置
WO2019014713A1 (fr) * 2017-07-17 2019-01-24 The University Of Newcastle Ensemble d'unité de vibration pour un transporteur à courroie
WO2020097669A1 (fr) 2018-11-14 2020-05-22 IB Operations Pty Ltd Procédé et appareil pour le traitement de magnétite
CN112158948A (zh) * 2020-10-26 2021-01-01 中国市政工程西南设计研究总院有限公司 基于滤布污泥预分离的高浓度活性污泥法处理方法及系统
CN119771068A (zh) * 2025-03-12 2025-04-08 安徽爱家食品有限公司 一种用于酱油原液中悬浮物处理沉淀装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439991A1 (de) * 1974-07-26 1976-02-05 Indberatungs Ag Verfahren zum eindicken von klaerschlamm und einrichtung zur durchfuehrung des verfahrens
EP0053094A2 (fr) * 1980-11-26 1982-06-02 Mario Schelling Procédé et dispositif pour séparer des matières particulaires solides de leur mélange avec un liquide, ainsi que des gaz de tels mélanges, et application du procédé
CN1289314A (zh) * 1999-02-23 2001-03-28 金英大 具有链式带压缩装置结合有合成树脂细纤维的淤泥过滤装置
WO2003101582A1 (fr) * 2002-05-31 2003-12-11 Farmatic Biotech Energy Ag Dispositif et procede de separation de solides dans des liquides
CN201058249Y (zh) * 2007-06-07 2008-05-14 广州普得环保设备有限公司 污泥板框压滤机的自动卸滤饼装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2439991A1 (de) * 1974-07-26 1976-02-05 Indberatungs Ag Verfahren zum eindicken von klaerschlamm und einrichtung zur durchfuehrung des verfahrens
EP0053094A2 (fr) * 1980-11-26 1982-06-02 Mario Schelling Procédé et dispositif pour séparer des matières particulaires solides de leur mélange avec un liquide, ainsi que des gaz de tels mélanges, et application du procédé
CN1289314A (zh) * 1999-02-23 2001-03-28 金英大 具有链式带压缩装置结合有合成树脂细纤维的淤泥过滤装置
WO2003101582A1 (fr) * 2002-05-31 2003-12-11 Farmatic Biotech Energy Ag Dispositif et procede de separation de solides dans des liquides
CN201058249Y (zh) * 2007-06-07 2008-05-14 广州普得环保设备有限公司 污泥板框压滤机的自动卸滤饼装置

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019014713A1 (fr) * 2017-07-17 2019-01-24 The University Of Newcastle Ensemble d'unité de vibration pour un transporteur à courroie
US11215397B2 (en) 2017-07-17 2022-01-04 The University Of Newcastle Vibration unit assembly for a belt conveyor
CN107337329B (zh) * 2017-08-04 2023-11-07 南京航空航天大学 水泥窑协同处置工业污泥的全密闭储存及预处理装置
CN107337329A (zh) * 2017-08-04 2017-11-10 南京航空航天大学 水泥窑协同处置工业污泥的全密闭储存及预处理装置
CN109126230A (zh) * 2018-09-28 2019-01-04 湖南娄底泰阳科技有限公司 一种集成型旋转式污料原位再生装置
CN109126230B (zh) * 2018-09-28 2023-11-24 湖南娄底泰阳科技有限公司 一种集成型旋转式污料原位再生装置
WO2020097669A1 (fr) 2018-11-14 2020-05-22 IB Operations Pty Ltd Procédé et appareil pour le traitement de magnétite
CN113272068A (zh) * 2018-11-14 2021-08-17 铁桥运营私人有限公司 用于加工磁铁矿的方法和设备
US20220008935A1 (en) * 2018-11-14 2022-01-13 IB Operations Pty Ltd Method and apparatus for processing magnetite
EP3880367A4 (fr) * 2018-11-14 2022-08-17 IB Operations Pty Ltd Procédé et appareil pour le traitement de magnétite
US12103013B2 (en) * 2018-11-14 2024-10-01 IB Operations Pty Ltd Method and apparatus for processing magnetite
CN112158948A (zh) * 2020-10-26 2021-01-01 中国市政工程西南设计研究总院有限公司 基于滤布污泥预分离的高浓度活性污泥法处理方法及系统
CN119771068A (zh) * 2025-03-12 2025-04-08 安徽爱家食品有限公司 一种用于酱油原液中悬浮物处理沉淀装置

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