WO2020199458A1 - 一种防结垢电渗透电极板装置 - Google Patents

一种防结垢电渗透电极板装置 Download PDF

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WO2020199458A1
WO2020199458A1 PCT/CN2019/101528 CN2019101528W WO2020199458A1 WO 2020199458 A1 WO2020199458 A1 WO 2020199458A1 CN 2019101528 W CN2019101528 W CN 2019101528W WO 2020199458 A1 WO2020199458 A1 WO 2020199458A1
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plate
scaling
electrode plate
plate device
vibration system
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English (en)
French (fr)
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王子羲
李树强
周银河
郭越红
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Tsinghua University
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Tsinghua University
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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

  • This application relates to the sewage treatment industry, in particular to an anti-scaling electro-osmosis electrode plate device.
  • the process of sewage treatment plants in cities and towns in my country is still based on activated sludge and biological methods.
  • the main water of sewage is mainly divided into capillary water, interstitial water, surface adhesion water and internal water.
  • the pure mechanical dehydration method can mainly remove capillary water and interstitial water, and the remaining water needs to be removed by consuming heat or by further physical, chemical, biological and other methods. Therefore, even after mechanical dehydration, the volume of sludge is still large because it still contains a lot of water. Therefore, it is necessary to find some reasonable and effective dewatering methods to remove the remaining moisture in the sludge, so as to reduce the volume of the sludge as much as possible, so as to reduce the cost for the subsequent treatment, transportation, and discharge of the sludge.
  • Electro-osmosis dehydration technology is a method that uses an external DC electric field to enhance the dehydration performance of materials. It was first used in in-situ soil remediation, mainly to remove organic pollutants and heavy metal substances in the soil. Due to the good dewatering performance of electroosmosis technology, more and more researchers have applied it to sludge dewatering in recent years to achieve the purpose of deep dewatering of sludge.
  • this application provides an anti-scaling electro-osmosis electrode plate device, which fundamentally solves the problem of fouling of the cathode plate in the electro-osmosis industry.
  • An anti-scaling electro-osmosis electrode plate device includes a control cabinet, a plate and frame filter press, a walking frame, a guide rail, a friction vibration system, a power supply, an anode plate, and a cathode plate.
  • the friction vibration system is composed of a motor, a transmission shaft, a rotation head, a friction disc and a folding structure.
  • This application uses the friction vibration between the friction vibration system and the cathode plate to remove the scale on the cathode plate, that is, as shown in Figure 1, during the working process of the electro-osmosis plate and frame filter press, the cathode mesh can be observed every time the plate is desludged.
  • the fouling condition or the water content of the mud cake after desliming under the actual working conditions of the plate and frame filter press determines the fouling condition of the cathode plate.
  • the control cabinet controls the friction vibration system to move to a suitable position on the walking frame, the folding structure turns the friction plate 90° to contact the front of the cathode mesh, and starts the rotation head and the cathode mesh to rub for about 10 seconds.
  • the folding structure After cleaning the first piece, the folding structure turns the friction plate up and moves to the next plate frame, and again turns the friction plate 90° to contact with the front of the cathode net to start the rotation head to drive the friction plate and the cathode plate to rub against to achieve the function of descaling.
  • a descaling work requires multiple cycles of the above steps to complete the descaling work of the cathode plate of the electroosmotic plate and frame filter press.
  • the beneficial effect of the application is that the application can solve the problem of scaling of the cathode plate and cathode mesh during the working process of the electro-osmotic plate and frame filter press, effectively reducing the working resistance and increasing the solid content of the mud cake.
  • FIG. 1 A schematic diagram of an anti-scaling electro-osmosis electrode plate device
  • Figure 1 shows a schematic diagram of an anti-scaling electroosmotic electrode plate device.
  • the device includes: control cabinet 1, plate and frame filter press 2, walking frame 3, guide rail 4, friction vibration system 5 , Power 6, anode plate 7, cathode plate 8.
  • the friction vibration system 5 is composed of a motor 501, a transmission shaft 502, a rotating head 503, a friction disc 504 and a folding structure 505.
  • This application uses the friction vibration between the friction vibration system and the cathode plate to remove the scale on the cathode plate, that is, as shown in Figure 1, during the working process of the electro-osmosis plate and frame filter press, the cathode mesh can be observed every time the plate is desludged. Fouling condition or according to the actual working conditions of the plate and frame filter press to determine the condition of the cathode plate fouling.
  • the control cabinet controls the friction vibration system to move to a suitable position on the walking frame, the folding structure turns the friction plate 90° to contact the front of the cathode mesh, and starts the rotation head and the cathode mesh to rub for about 10 seconds.
  • the folding structure After cleaning the first piece, the folding structure turns the friction plate up and moves to the next plate frame, and again turns the friction plate 90° to contact with the front of the cathode net to start the rotation head to drive the friction plate and the cathode plate to rub against to achieve the function of descaling.
  • a descaling work requires multiple cycles of the above steps to complete the descaling work of the cathode plate of the electroosmotic plate and frame filter press.
  • the plate and frame filter press feeds, maintains pressure (direct current), unloads the mud cake, and circulates the descaling to complete the descaling of each cathode plate.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • 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)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

一种防结垢电渗透电极板装置，用于污水处理行业，包括控制柜(1)、板框压滤机(2)、行走机架(3)、导轨(4)、摩擦振动系统(5)、电源(6)、阳极板(7)、阴极板(8)。其中摩擦振动系统(5)由电机(501)、传动轴(502)、自转头(503)、摩擦盘(504)和折叠结构(505)组成。该装置应用于电渗透生物污水处理行业，可以有效解决阴极板生成水垢后电阻增加，泥饼含水率上升，工作效率降低的问题。

Description

一种防结垢电渗透电极板装置 技术领域
本申请涉及污水处理行业，特别是一种防结垢电渗透电极板装置。
背景技术
目前，我国各城镇污水处理厂的工艺仍然以活性污泥、生物法为主，在污水的各级处理过程中，需要对含有细菌及各种寄生虫卵等有害物质进行处理。污水处理中，污水的主要水主要分为毛细水、间隙水、表面附着水和内部水。
单纯的机械脱水方式主要可以去除的是毛细水和间隙水，其余的水分需要通过消耗热量或者通过进一步的物理、化学、生物等方法去除。因而，即使经过机械脱水之后，由于仍然含有大量水分，污泥的体积仍然很大。因此，需要寻找一些合理有效的脱水方式来脱除污泥中的剩余水分，以尽可能的减小污泥的体积，从而为污泥的后续处理及运输、排放等降低成本。
电渗透脱水技术，就是利用外加的直流电场，从而增强物料脱水性能的方法。其最早被应用于土壤的原位修复中，主要是用于去除土壤中的有机污染物以及重金属物质。由于电渗透技术具有良好的脱水性能，因而近来年越来越多的研究人员将其应用于污泥脱水当中，达到对污泥进行深度脱水的目的。
但是电渗透脱水过程中，存在污泥加被加热且阴极呈碱性，进而会在阴极网的一侧出现结垢的情况，这样直接导致电阻升高、工作效率明显降低和过滤性能变差的情况。实际使用过程中可能1～3天就需要进行一次清洗除垢过程。
发明内容
为了克服上述的技术缺陷，本申请提供了一种防结垢电渗透电极板装置，从根本解决了电渗透行业阴极板结垢问题。
该方案的具体组成及原理是：
一种防结垢电渗透电极板装置，包括控制柜、板框压滤机、行走机架、导轨、摩擦振动系统、电源、阳极板、阴极板。其中摩擦振动系统由电机、传动轴、自转头、摩擦盘和折叠结构组成。
本申请利用摩擦振动系统和阴极板之间的摩擦振动去除阴极板上的水垢，即 如图1所示电渗透板框压滤机工作过程中，每次开板脱泥后可以观察阴极网的结垢情况或根据板框压滤机实际工作情况下脱泥后的泥饼含水量确定阴极板结垢的情况。确定结垢需要清理时，控制柜控制摩擦振动系统在行走机架上移动到合适位置，折叠结构将摩擦盘翻转90°与阴极网正面接触，启动自转头和阴极网进行摩擦10s左右即可去除阴极网的固体污垢。清理完成第一块后，折叠结构将摩擦盘上翻并移动到下一块板框，再次将摩擦盘翻转90°与阴极网正面接触启动自转头带动摩擦盘和阴极板摩擦实现除垢功能。一次除垢工作需要循环多次上述步骤完成电渗透板框压滤机阴极板的除垢工作。
本申请的有益效果是：本申请可以解决电渗透板框压滤机工作过程中，阴极板阴极网结垢的问题，有效降低了工作电阻和提升了泥饼的含固率。
附图说明
图1一种防结垢电渗透电极板装置示意图
图2摩擦振动系统结构图
具体实施方式
下面结合附图对本申请进行进一步的说明：
图1所示的一种防结垢电渗透电极板装置示意图，如图中所示，该装置包括：控制柜1、板框压滤机2、行走机架3、导轨4、摩擦振动系统5、电源6、阳极板7、阴极板8。其中摩擦振动系统5由电机501、传动轴502、自转头503、摩擦盘504和折叠结构505组成。
具体实施步骤如下：
本申请利用摩擦振动系统和阴极板之间的摩擦振动去除阴极板上的水垢，即如图1所示电渗透板框压滤机工作过程中，每次开板脱泥后可以观察阴极网的结垢情况或根据板框压滤机实际工作情况下脱泥的含水量确定阴极板结垢的情况。确定结垢需要清理时，控制柜控制摩擦振动系统在行走机架上移动到合适位置，折叠结构将摩擦盘翻转90°与阴极网正面接触，启动自转头和阴极网进行摩擦10s左右即可完成去除阴极网的固体污垢的动作。清理完成第一块后，折叠结构将摩擦盘上翻并移动到下一块板框，再次将摩擦盘翻转90°与阴极网正面接触启动自转头带动摩擦盘和阴极板摩擦实现除垢功能。一次除垢工作需要循环多次上述步骤完成电渗透板框压滤机阴极板的除垢工作。
结合板框压滤机的工作原理，最优的步骤流程如下：
板框压滤机进料、保压(通直流电)、卸泥饼、除垢循环动作，完成各个阴极板的除垢工作。
上述具体实施方式用来解释说明本申请的方法及其核心思想，而不是对本申请进行限制。对于技术领域的技术人员来说，在不脱离本申请的原理的前提下，对本申请作出的任何修改和改变，都落入本申请的保护范围内。

Claims (5)

  1. 一种防结垢电渗透电极板装置，其特征在于，所述的防结垢电渗透电极板装置包括：控制柜(1)、板框压滤机(2)、行走机架(3)、导轨(4)、摩擦振动系统(5)、电源(6)、阳极板(7)、阴极板(8)。
  2. 根据权利要求1所述的一种防结垢电渗透电极板装置，其特征在于：所述的摩擦振动系统(5)由电机(501)、传动轴(502)、自转头(503)、摩擦盘(504)和折叠机构(505)。
  3. 根据权利要求2所述的一种防结垢电渗透电极板装置，其特征在于：所述摩擦盘(504)由所述自转头(503)驱动。
  4. 根据权利要求1所述的一种防结垢电渗透电极板装置，其特征在于：所述摩擦振动系统(5)在所述行走机架(3)上靠所述导轨(4)前后移动。
  5. 根据权利要求2所述的一种防结垢电渗透电极板装置，其特征在于：所述折叠机构(505)可以完成径向0～90°的正反旋转。
PCT/CN2019/101528 2019-04-01 2019-08-20 一种防结垢电渗透电极板装置 Ceased WO2020199458A1 (zh)

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