WO2010051734A1 - A method for accelerating depositing-condensing-dewatering of sludge by means of vibration - Google Patents
A method for accelerating depositing-condensing-dewatering of sludge by means of vibration Download PDFInfo
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- 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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- sludge
- vibration
- concentration
- force
- sedimentation
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Classifications
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- 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
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- 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
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- 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
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- 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
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- 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.
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- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
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Abstract
A method for accelerating depositing-condensing-dewatering of sludge (2) by means of vibration is disclosed. A vibration source (4) is installed in sludge (2) to be deposited-condensed-dewatered, in such a way that the sludge is vibrated by the vibration source (4). Under the action of the vibration force and the gravitation or the vibration force and the press force, the stabilization of the mixture of sludge and water is destroyed to improve separating the sludge and the water and to accelerate depositing-condensing-dewatering of sludge (2).
Description
振动加速污泥沉淀、 浓缩、 脱水法 技术领域 Vibration accelerated sludge sedimentation, concentration, dehydration method
这项发明是关于污水处理中的污泥处理， 其中包括污泥沉淀、 浓缩、 脱水处理的方法， 以及类似在湖泊、 河道清淤过程中污泥的沉淀、 浓缩、 脱水处理方法。 采用本项发明中的方法， 提高污泥的沉淀、 浓缩、 脱水 效果。 背景技术 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
活性污泥法是目前世界上应用最为广泛的污水生物处理技术， 但是 它一直存在一个^艮大的弊端， 就是会产生大量的剩余污泥。 其剩余污泥 产生量一般是污水处理量的 0. 3 % - 0. 5 % (以含水率 97 %计）， 数量十分 惊人。 同时， 污泥处理的投资和运行费用巨大， 可占整个污水厂投资及 运行费用的 25 % ~ 65 % , 已成为城市污水处理厂所面临的沉重负担。 在 污水的生物化学处理中产生的污泥， 如果不予以有效的处理和处置， 还 会对环境产生二次污染。 在污水处理厂中采用污泥沉淀池、 污泥浓缩池 及污泥脱水机对污水处理中产生的污泥分别进行沉淀、 浓缩、 脱水， 使 最终的污泥体积减小， 便于对污泥进行卫生填埋、 焚烧等处置。 在目前 的污泥处理过程中， 污泥经过沉淀、 浓缩及机械脱水后含水率一般在 80% 以上， 不能达到对污泥进行卫生填埋及焚烧的要求。 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. At the same time, 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. In the sewage treatment plant, 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. Sanitary landfill, incineration, etc. In the current sludge treatment process, 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.
在湖泊、 河流受污染底泥的疏浚中， 也会产生大量含水率很高的污 泥， 一般是采用建堆场对这些污泥进行自然沉淀、 浓缩， 对这些污泥的 处理要花费大量的场地和时间， 同时也需要大量的费用。 In the dredging of contaminated sediments in lakes and rivers, a large amount of sludge with high water content will also be produced. Generally, the sludge is naturally precipitated and concentrated by the construction yard, and the treatment of these sludges is expensive. The venue and time also require a lot of money.
振动是自然界最基本的运动形态之一， 如大自然中月亮的圓缺、 潮 汐的涨落、 地壳的震动等； 人类生活中琴弦的跳动、 钟表的摆动等； 人 类社会中人口的增长与衰减、 社会经济发展过程中速度的增长与衰减等， 都可以归纳为不同形式的振动。 振动也被人类用在工程中， 振动技术是 20世纪后半期发展起来的一种具有广泛应用价值的技术， 这项技术在各 个领域都迅速发展， 振动输送技术、 振动筛分技术、 振动破碎技术、 振 动压实技术、 振捣技术、 振动诊断技术等广泛应用于多个行业、 部门。
发明内容 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
在污水处理中产生大量的污泥， 在污泥的沉淀、 浓缩及脱水过程中， 污泥均勾分布于水中， 形成相对稳定的状态， 不易进行泥水分离。 本发 明采用的方法是： 在污泥自然沉淀、 浓缩以及污泥机械浓缩、 脱水过程 的污泥中加入由驱动马达带动激振器组成的振动源或使污泥产生振动的 振动源， 通过振动源产生与重力或挤压力方向一致的激振力或称振动力， 在污泥与水的混合体中振动力打破污泥与水相对稳定的状态， 促进泥水 分离， 加快污泥沉淀、 浓缩、 脱水的速度。 A large amount of sludge is produced in the sewage treatment. During the sedimentation, concentration and dehydration of the sludge, the sludge is distributed in the water to form a relatively stable state, and it is difficult to separate the muddy water. 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. 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 muddy water, accelerates the sedimentation and concentration of the sludge. , the speed of dehydration.
在实际使用的污泥沉淀池及污泥浓缩池中， 池体容积较大， 为了使 振动力传递到整个池体的污泥中， 在池体中使用金属、 有机高分子材料 或木材制成的杆连接成立体网架结构， 由驱动马达带动激振器组成的振 动装置与立体网架相连， 与重力方向一致的振动力通过立体网架传递到 整个池体的污泥中， 污泥在振动力与重力的共同作用下， 泥水分离速度 加快， 达到提高污泥沉淀、 浓缩效率的目的。 在有旋转刮泥设备的圓形 污泥沉淀池或污泥浓缩池中， 在池体中的部分区域安装立体网架， 立体 网架与刮泥机一同转动将振动力传递到整个池体中。 In the actually used sludge sedimentation tank and sludge concentration tank, 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. In a circular sludge sedimentation tank or a sludge concentration tank with a rotary scraping device, 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. .
在污泥带式压滤机中， 安装两排平行的具有相同直径的传动挤压轮， 每个挤压轮与另一排上的两个挤压轮接触挤压， 或一个大挤压轮与周边 若干个小的行星轮组成挤压轮， 传动的滤布从两排挤压轮中通过， 夹在 滤布中间的污泥经过两个挤压轮时被挤压， 离开挤压轮时压力减小， 污 泥被反复周期性的挤压和放松， 在污泥中产生振动作用， 在污泥与水的 混合体中振动力打破污泥与水相对稳定的状态， 促进泥水分离， 加速污 泥的浓缩、 脱水。 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.
在污泥板框压滤机中， 在污泥挤压面处安装由驱动马达带动激振器 组成的振动装置， 使之产生与挤压方向一致的振动力。 污泥在振动力与 挤压力的共同作用下， 泥水分离速度加快， 达到提高污泥浓缩、 脱水效 率的目的。 为了使振动力有效利用和使机械整体上受力平衡， 在受挤压 污泥的两边各安装一个相同的激振器， 使振动力大小、 频率、 振幅相等， 振动力方向相反。 附图说明 In the sludge plate frame filter press, 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. Under the combined action of vibration force and squeezing force, the sludge separation speed is accelerated, and the purpose of improving sludge concentration and dewatering efficiency is achieved. In order to make effective use of the vibration force and balance the force on the whole machine, install the same vibration exciter on both sides of the squeezed sludge to make the vibration force equal in magnitude, frequency and amplitude, and the vibration force direction is opposite. DRAWINGS
图 1在污泥沉淀、 浓缩及脱水中加入振动装置的示意图。 图 1中： 1
为污泥沉淀、 浓缩、 脱水池， 2为沉淀、 浓缩、 脱水污泥， 3为上清液， 4为由驱动马达带动激振器组成的振动装置。 Figure 1 is a schematic diagram of the addition of a vibrating device to sludge precipitation, concentration and dewatering. In Figure 1: 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.
图 2是加入振动装置的污泥沉淀、 浓缩池示意图。 图 2中： 1为污泥 沉淀、 浓缩池， 4为与立体网架相连的由驱动马达带动激振器组成的振动 装置， 5为立体网架， 6为固定在池体上的支架或刮泥机大梁。 Figure 2 is a schematic view of a sludge sedimentation and concentration tank added to a vibrating device. In Fig. 2: 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.
图 3是安装两排平行传动挤压轮的污泥带式压虑机示意图。 图 3中： 7为待浓缩、 脱水稀污泥入口， 8为经过浓缩、 脱水后排出干污泥， 9为 一般挤压轮， 10为两排平行传动挤压轮， 11为滤布。 Figure 3 is a schematic view of a sludge belt type compactor equipped with two rows of parallel drive squeeze wheels. In Fig. 3: 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, and 11 is the filter cloth.
图 4是加入振动装置的污泥板框压滤机示意图。 图 4中： 4为由激振 器组成的振动装置， 7为待浓缩、 脱水稀污泥入口， 8为经过浓缩、 脱水 后排出干污泥， 12 为滤板、 滤框及滤布， 13 为横梁， 14 为止推板， 15 为压紧板。 具体实施方式 Figure 4 is a schematic view of a sludge plate frame filter press incorporating a vibrating device. In Fig. 4: 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. detailed description
在图 1的污泥沉淀、 浓缩、 脱水池 1 中加入振动装置 4 , 3为上清 液， 由驱动马达带动激振器组成的振动装置 4产生振动力， 振动力与重 力共同作用， 加速污泥 2的沉淀、 浓缩、 脱水。 In the sludge sedimentation, concentration, and dewatering tank 1 of Fig. 1, 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. Precipitation, concentration and dehydration of mud 2.
在图 2的实际污泥浓缩池 1中，假定污泥浓缩池直径 20米，高 6米， 污泥浓缩池中设置旋转刮泥设备。 在池体中使用金属、 有机高分子材料 或木材制成的杆连接成立体网架结构 5 , 立体网架分为 2部分，每部分长 8. 0米， 高 3米， 宽 2米， 立体网架中杆与杆之间的间隔为 0. 5米， 立体 网架布置在污泥浓缩池下部的污泥区中， 位于刮泥大梁的下部、 刮泥板 的上部。 振动装置 4 由驱动马达、 及其带动的平面连杆机构组成， 在平 面连杆机构中优选曲柄滑块机构， 驱动马达经过减速器减速后带动曲柄 转动， 连杆两端分别与曲柄和滑块相连， 与连杆连接的滑块作为振动源 往复运动。 振动装置 4上部用可拆装方式固定在刮泥机大梁 6上、 下部 用可拆装方式与立体网架结构相连。 In the actual sludge concentration tank 1 of Fig. 2, it is assumed that 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. In the pool body, 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. In the planar link mechanism, 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. Connected, 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.
在污泥浓缩池运行时， 驱动马达转动带动振动装置 4 工作， 滑块部 分带动立体网架 5做上下往复运动， 振动频率范围在 0. 05 ~ 2Hz , 振幅范 围在 5 ~ 20cm,与重力方向一致的振动力通过立体网架传递到立体网架所 在区域的污泥中， 立体网架与刮泥机一同转动将振动力传递到整个池体 中。 污泥在振动力与重力的共同作用下， 泥水分离速度加快， 达到提高
污泥沉淀、 浓缩效率的目的。 When the sludge concentration tank is running, 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.
在图 3 污泥带式压滤机中， 如图带式压滤机前段采用一般挤压轮 9 (由滤布和挤压轮产生挤压力压出水分）， 后段采用由 9个具有相同直径 的轮组成的两排平行的传动挤压轮 10 ,轮直径在 10 ~ 30cm范围内，每个 挤压轮与另一排上的两个挤压轮接触挤压， 两排挤压轮采用水平的布置 方式或者前低后高的布置方式， 传动的滤布 11从两排挤压轮中通过， 滤 布 1 1宽为 0. 6 ~ 3. 0m。 In the sludge belt filter press of Fig. 3, 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米。 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.
污泥带式压滤机运转时， 稀污泥 7先经过一般挤压轮 9压出一部分 水分， 然后进入本发明提出的挤压轮 10 , 夹在滤布 11中间的污泥经过两 个挤压轮时被挤压， 滤布上的污泥在经过相邻的两个挤压点的时间间隔 小于等于 4 秒， 离开挤压轮时压力减小， 污泥被反复周期性的挤压和放 松， 在污泥中产生振动作用， 在污泥与水的混合体中振动力打破污泥与 水相对稳定的状态， 促进泥水分离， 加速污泥的浓缩、 脱水。 最后经过 挤压轮 10脱水后的干污泥 8被排出。 When the sludge belt filter press is in operation, 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. When 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.
在图 4污泥板框压滤机中， 在板框压滤机止推板 14与滤板、 滤框及 滤布 12之间安装电动激振器 4 , 在压紧板 15与滤板、 滤框及滤布 12之 间安装电动激振器 4 , 电动激振器的安装方法与滤板、 滤框及滤布 12相 同， 悬挂在板框压滤机的横梁 1 3上， 使电动激振器 4可以沿着横梁 1 3 移动。 为了使振动力有效利用和使机械整体上受力平衡， 安装在板框压 滤机止推板 14及压紧板 15与滤板、 滤框及滤布 12之间的 2个电动激振 器 4 , 振动力大小、 频率、 振幅相等， 振动力方向相反。 In the sludge plate frame filter press of Fig. 4, 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 . In order to make effective use of the vibration force and balance the mechanical force as a whole, 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.
污泥板框压滤机工作时， 稀污泥通过污泥泵由进泥口 7压入到滤板、 滤框及滤布 12中。 启动板框压滤机的液压泵， 将压紧板 15向止推板 14 方向压紧， 在止推板 14和压紧板 15之间的滤板、 滤框及滤布 12、 电动 激振器 4 向一起压紧。 然后开启电动激振器， 电动激振器产生与压紧板 挤压方向一致的振动力， 污泥在振动力与挤压力的共同作用下， 泥水分 离速度加快， 达到提高污泥浓缩、 脱水效率的目的。 污泥板框压滤机脱 水结束后， 关闭电动激振器， 关闭液压泵， 打开滤板、 滤框及滤布， 干 污泥 8脱落。 电动激振器振动频率大于 0. 25Hz , 振幅小于 5 cm。
When the sludge plate frame filter press is in operation, 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. Under the combined action of the vibration force and the pressing force, 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.
Claims
1.振动加速污泥沉淀、 浓缩、 脱水法， 其特征在于： 在进行污泥沉淀、 污泥浓缩及污泥脱水的污泥中加入使污泥产生振动的振动源， 使污泥受 到的振动力方向与重力或挤压力方向一致， 振动力与重力或挤压力共同 作用于污泥， 在污泥与水的混合体中振动力打破污泥与水相对稳定的状 态， 促进泥水分离， 加速污泥的沉淀、 浓缩、 脱水。 1. Vibration-accelerated sludge sedimentation, concentration, and dehydration method, which is characterized in that: a vibration source that vibrates the sludge is added to the sludge for sludge sedimentation, sludge concentration, and sludge dewatering to cause vibration of the sludge. The direction of force is consistent with the direction of gravity or squeezing force. The vibration force acts on the sludge together with gravity or squeezing force. In the mixture of sludge and water, the vibration force breaks the relatively stable state of sludge and water, and promotes the separation of mud and water. Accelerate the sedimentation, concentration and dehydration of sludge.
2.根据权利要求 1 所述的振动加速污泥沉淀、 浓缩、 脱水法， 其特征在 于： 在污泥沉淀池、 污泥浓缩池中， 用金属、 有机高分子材料、 木材制 成的杆连接成立体网架结构， 杆与杆的间距为 1 0 ~ 50cm, 将由驱动马达 带动激振器组成的振动装置与立体网架相连， 振动装置带动立体网架做 上下往复运动， 与重力方向一致的振动力通过立体网架传递到整个池体 的污泥中， 振动频率范围在 0. 05 ~ 2Hz , 振幅范围在 5 ~ 20cm , 振动力与 重力共同作用于污泥， 加速污泥的沉淀、 浓缩。 The vibration accelerating sludge sedimentation, concentration and dehydration method according to claim 1, wherein: in the sludge sedimentation tank and the sludge concentration tank, a rod made of metal, organic polymer material or wood is connected. The body net frame structure is set up, the distance between the rod and the rod is 10 to 50 cm, and the vibration device composed of the drive motor and the exciter is connected with the three-dimensional net frame, and the vibrating device drives the three-dimensional net frame to reciprocate up and down, which is consistent with the direction of gravity. The vibration force is transmitted to the sludge of the whole pool through the three-dimensional grid. The vibration frequency ranges from 0.05 to 2 Hz, and the amplitude ranges from 5 to 20 cm. The vibration force and gravity act together on the sludge to accelerate the sedimentation and concentration of the sludge. .
3.根据权利要求 1 所述的振动加速污泥沉淀、 浓缩、 脱水法， 其特征在 于： 对利用挤压力进行污泥浓缩、 脱水的污泥带式压滤机， 在污泥带式 压滤机中安装两排平行的具有相同直径的传动挤压轮， 每排至少有 2 个 挤压轮， 每个挤压轮与另一排上的两个挤压轮接触挤压， 或一个大挤压 轮与周边若干个小的行星轮组成挤压轮， 被传动的滤布从两排挤压轮中 通过， 夹在滤布中间的污泥经过两个挤压轮时被挤压， 离开挤压轮时压 力减小， 滤布上的污泥在经过相邻的两个挤压点的时间间隔小于 4 秒， 污泥被反复周期性的挤压和放松， 在污泥中产生振动作用， 在污泥与水 的混合体中振动力打破污泥与水相对稳定的状态， 促进泥水分离， 加速 污泥的浓缩、 脱水。 The vibration accelerating sludge sedimentation, concentration and dehydration method according to claim 1, characterized in that: a sludge belt type filter press for concentrating and dewatering sludge by a pressing force, in a sludge belt type pressure Two rows of parallel drive squeeze wheels of the same diameter are installed in the filter, each row has at least 2 squeeze wheels, and each squeeze wheel is pressed against two squeeze wheels on the other row, or one large The squeeze wheel and a plurality of small planetary gears in the periphery constitute a squeeze wheel, and the driven filter cloth 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 When the pressure is squeezed, the pressure on the filter cloth is less than 4 seconds after passing through two adjacent extrusion points, and the sludge is repeatedly squeezed and relaxed periodically to generate vibration in the sludge. In the mixture of sludge and water, the vibration force breaks the relatively stable state of sludge and water, promotes the separation of mud and water, and accelerates the concentration and dehydration of sludge.
4.根据权利要求 1所述的振动加速污泥沉淀、浓缩、脱水法， 其特征在于： 对利用挤压力进行污泥浓缩、 脱水的污泥板框压滤机， 在污泥挤压面处 安装由驱动马达带动激振器组成的振动装置， 使振动力的方向与污泥被 挤压的方向一致， 振动力与挤压力共同作用于污泥， 加速污泥的浓缩、 脱水， 振动频率大于 0. 25Hz , 振幅小于 5 cm, 为了使振动力有效利用和使 机械整体上受力平衡， 在受挤压污泥的两边各安装一个相同的振动装置， 使振动力大小、 频率、 振幅相等， 振动力方向相反。
The vibration-accelerated sludge sedimentation, concentration, and dehydration method according to claim 1, characterized in that: a sludge plate frame filter press for sludge concentration and dehydration by a pressing force, at a sludge extrusion surface A vibration device consisting of a drive motor and a vibration exciter is installed to make the direction of the vibration force coincide with the direction in which the sludge is squeezed. The vibration force and the pressing force act together on the sludge to accelerate the concentration, dehydration, and vibration of the sludge. The frequency is greater than 0.25 Hz and the amplitude is less than 5 cm. In order to make effective use of the vibration force and balance the mechanical force on the whole, a vibration device is installed on both sides of the squeezed sludge to make the vibration force, frequency and amplitude. Equal, the vibration force is in the opposite direction.
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