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Energy-saving vibration group device system

An energy-saving and integrated technology, applied in chemical instruments and methods, membranes, biological water/sewage treatment, etc., can solve problems such as high failure rate, increased maintenance cost, troublesome control system, etc., and achieves high precision and installation. Easy maintenance and simple structure

Active Publication Date: 2021-06-25
北京华特源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The design of mixing through stirring or aeration has several disadvantages. First, increasing the number of equipment makes the system complex and the control system is more troublesome, which leads to a higher failure rate and higher maintenance costs; second, the increased cost of related equipment Electric energy, thereby increasing the cost of system operation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Embodiment 1 (in municipal sewage, energy saving 80%):

[0085] A municipal sewage treatment plant project adopts the MBR process, and the solid-liquid separation part adopts a swing-type vibration assembly system. The distance r from the central axis of the double-layer assembly to the upper and lower ends of the component is 0.25m, the swing angle is 20°, and the swing frequency is f 0.5Hz. The total height of the membrane tank is 5.5m, the concentration of the mixed solution entering the membrane tank at the front end is 4-6g / L, and the sludge concentration of the membrane tank is 12g / L. The pressure difference changes after 10 months of operation are as follows: figure 1 As shown, the flux is maintained at 24-30LMH, and the energy consumption of the membrane cell is 0.015KWh / m 3 , compared to the energy consumption of aerated MBR 0.1KWh / m 3 , saving 85%.

Embodiment 2

[0086] Embodiment 2 (in anaerobic environment, enhance pollution resistance):

[0087] In an anaerobic MBR project, membrane fouling is controlled in an anaerobic environment, and air aeration is not available. It is difficult and costly to use inert gas and methane for aeration. The use of mechanical movement to control membrane fouling is more suitable for use in anaerobic MBR. By adopting this form of pollution control means, the membrane is used for solid-liquid separation instead of the three-phase separator. The membrane tank adopts this kind of membrane tank structure, the total height of the membrane tank is 4.5m, the frequency of the driving system is 0.7Hz, and the front end enters the membrane tank The concentration of the mixed liquid is 10000mg / L, the sludge concentration in the membrane separation zone is 4000mg / L, and the sludge concentration in the lower settlement zone is 25000mg / L. 100% of the anaerobic sludge in the membrane pool is retained, effectively ret...

Embodiment 3

[0088] Embodiment 3 (in solid-liquid separation, enhance anti-pollution):

[0089] In the coagulation-sedimentation-ultrafiltration process, by adopting this method to control ultrafiltration membrane fouling, the total height of the membrane pool is 5.0m, the frequency of the drive system is 0.5Hz, the SS content of the front end entering the membrane pool is 100mg / L, and the upper end The sludge concentration in the membrane separation area is 50mg / L, and the sludge concentration in the lower settlement area is 1200mg / L. The stable operating flux of the membrane system is 30-45LMH, and the online maintenance cleaning cycle is two weeks. After adopting this kind of vibrating membrane separation system, the turbidity of the membrane pool can be as high as 200NTU, and the pollution cleaning cycle of the system is doubled.

[0090] The above examples fully prove that the following effects can be achieved by adopting this kind of oscillating structure:

[0091] The swing vibrati...

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Abstract

The invention provides an energy-saving vibration group device system. The energy-saving vibration group device system comprises a membrane tank, a plurality of double-layer group devices, a driving device, a positioning mechanism and a controller. The plurality of double-layer group devices are positioned in the membrane tank and are connected in series. Each double-layer group device comprises an upper-layer group device and a lower-layer group device which are connected with each other, and rotating shafts are arranged at the two ends of the middle parts of the upper-layer group devices and the lower-layer group devices. The upper-layer group devices and the lower-layer group devices are equal in weight, and the gravity centers of the upper-layer group devices and the lower-layer group devices are equal relative to the moment arm lengths of the rotating shafts. The driving device comprises a crank mechanism and a motor which are in driving connection with each other, and the crank mechanism is in driving connection with one double-layer group device. The motor drives the double-layer group devices to swing with the rotating shafts as the axes through the crank mechanism. The controller is in circuit connection with the motor, and the swinging frequency of the double-layer group devices is adjusted by controlling the rotating speed of the motor, so that liquid in the membrane tank generates rotating tangential flow on the membrane surfaces of the double-layer group devices. The system provided by the invention is simple in structure, convenient to install and maintain, reasonable in design and low in energy consumption during vibration.

Description

technical field [0001] The invention relates to the technical field of vibrating devices, in particular to an energy-saving vibrating device system. Background technique [0002] Aeration is a traditional method to control membrane fouling. However, a large amount of aeration consumes a lot of energy, which will lead to an increase in water treatment costs. At the same time, hair and other clogging will occur at the root of the membrane module. When the clogging reaches a certain level, regular online cleaning and offline cleaning are required, which is labor-intensive and time-consuming. In addition, the aeration method cannot realize the anaerobic separation process, which limits the application field of membrane bioreactor technology. [0003] At present, the vibration form of most non-aeration MBRs is that the membrane unit reciprocates in the horizontal direction, and tracks and walking wheels are set. However, this type of vibrator system has high mechanical structur...

Claims

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Application Information

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IPC IPC(8): B01D65/08C02F3/12C02F3/28
CPCB01D65/08C02F3/1273C02F3/2853C02F3/2866C02F2203/006B01D2311/2688B01D2315/04B01D2315/06B01D2321/30Y02W10/10
Inventor 李天玉陈亦力杨玉兵孙庆硕吴超
Owner 北京华特源科技有限公司
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