CN201458940U - A high-efficiency concentration pool for sludge discharge - Google Patents
A high-efficiency concentration pool for sludge discharge Download PDFInfo
- Publication number
- CN201458940U CN201458940U CN2009200961126U CN200920096112U CN201458940U CN 201458940 U CN201458940 U CN 201458940U CN 2009200961126 U CN2009200961126 U CN 2009200961126U CN 200920096112 U CN200920096112 U CN 200920096112U CN 201458940 U CN201458940 U CN 201458940U
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- water distribution
- reaction cylinder
- sludge discharge
- mud
- pool body
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- 239000010802 sludge Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 23
- 238000005352 clarification Methods 0.000 claims abstract description 5
- 238000009825 accumulation Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims abstract 2
- 230000008719 thickening Effects 0.000 claims description 8
- 208000028659 discharge Diseases 0.000 abstract description 11
- 239000007787 solid Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 7
- 239000006228 supernatant Substances 0.000 abstract description 6
- 239000013049 sediment Substances 0.000 abstract description 2
- 238000005189 flocculation Methods 0.000 description 4
- 230000016615 flocculation Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000867 polyelectrolyte Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
本实用新型涉及一种排泥水高效浓缩池，属于自来水厂排泥水处理流程中的工艺技术及设备。包括池体、进泥管、加药分配器、池体底部的积泥区、上部的澄清区和池体底部的集泥锥。在池体的中部设置配水反应筒，配水反应筒的出口与清水出水堰连通，清水出水堰与池体四周的集水槽连通；配水反应筒的底部装有悬挂式中心传动浓缩机和锥型偏流板；配水反应筒的进口与内放絮凝剂的进泥管相通。本实用新型对排泥水的浓缩效率高、上清液浊度低、浓缩底泥浓度高、固体负荷高、池体尺寸小、基建投资省，非常适合用于自来水厂的排泥水处理过程。
The utility model relates to a high-efficiency concentration pool for sludge discharge, which belongs to the process technology and equipment in the sludge discharge treatment process of a waterworks. It includes the pool body, mud inlet pipe, dosing distributor, mud accumulation area at the bottom of the pool body, upper clarification area and mud collection cone at the bottom of the pool body. A water distribution reaction cylinder is set in the middle of the pool body, the outlet of the water distribution reaction cylinder is connected with the clear water outlet weir, and the clear water outlet weir is connected with the sump around the pool body; the bottom of the water distribution reaction cylinder is equipped with a suspended central transmission concentrator and a conical bias flow plate; the inlet of the water distribution reaction cylinder communicates with the mud inlet pipe in which the flocculant is placed. The utility model has high concentration efficiency of sludge discharge, low turbidity of supernatant, high concentration of concentrated sediment, high solid load, small tank size, low capital investment, and is very suitable for sludge discharge treatment process of waterworks.
Description
技术领域：Technical field:
本实用新型涉及一种排泥水处理装置，特别涉及自来水厂的排泥水浓缩池。The utility model relates to a sludge discharge treatment device, in particular to a sludge discharge concentration tank of a waterworks.
背景技术：Background technique:
从20世纪90年代末期开始，我国自来水厂的建设大多设计有排泥水处理系统。水厂沉淀池(或澄清池)的排泥水含固率一般均低于1％，需经浓缩池进行重力式固液分离，排除上清液，缩小污泥体积后，再将浓缩后底泥送往后续工艺进行脱水或干化处理，使水厂生产的泥渣能够以干固体的形式外运，尽量减少对周围环境的影响。通常要求浓缩池排出的浓缩底泥含固率达2％以上，以满足后续脱水机械高效运行的需要。Since the late 1990s, the construction of waterworks in my country has mostly been designed with sludge water treatment systems. The solid content of sludge in the sedimentation tank (or clarification tank) of the water plant is generally lower than 1%. It needs to undergo gravity solid-liquid separation in the concentration tank to remove the supernatant and reduce the volume of the sludge. Sent to the follow-up process for dehydration or drying treatment, so that the sludge produced by the water plant can be transported in the form of dry solids, minimizing the impact on the surrounding environment. It is usually required that the solid content of the concentrated sediment discharged from the thickening tank should be more than 2%, so as to meet the needs of the efficient operation of the subsequent dehydration machinery.
现有技术中多采用传统的重力式排泥水浓缩池，采用间歇式或连续流方式运行。这种浓缩池存在如下缺陷：1、由于排泥水含水率比较高，比重与水接近，泥水分离过程缓慢，较难出现严格的泥水分界面。2、浓缩时间都比较长、效率低，一般在12小时以上。3、池体体积大，占地面积大，造成了浓缩池基建投资较高。4、由于池体本身的构造原因，容易使部分污泥随着上清液排出池外，上清液浊度较高，底泥浓度不稳定。In the prior art, the traditional gravity sludge concentration tank is mostly used, and it is operated in an intermittent or continuous flow mode. This concentration tank has the following defects: 1. Due to the relatively high moisture content of the sludge discharge water, the specific gravity is close to that of water, the separation process of the sludge and water is slow, and it is difficult to have a strict sludge-moisture interface. 2. The concentration time is relatively long and the efficiency is low, generally more than 12 hours. 3. The tank body is large in size and occupies a large area, resulting in a high investment in the infrastructure of the concentration tank. 4. Due to the structure of the tank itself, part of the sludge is easily discharged out of the tank along with the supernatant, the supernatant has high turbidity, and the concentration of the bottom sludge is unstable.
发明内容：Invention content:
本实用新型的目的是提供一种排泥水高效浓缩池，该浓缩池提高了泥水分离效果、增加了浓缩污泥的含固率、减少了浓缩池的体积和面积。The purpose of the utility model is to provide a high-efficiency thickening pond for sludge discharge, which improves the separation effect of mud and water, increases the solid content of concentrated sludge, and reduces the volume and area of the thickening pond.
为了实现上述目的，本实用新型的技术方案是：一种排泥水高效浓缩池，包括池体、进泥管、加药分配器、池体底部的积泥区、上部的澄清区和池体底部的集泥锥，其特征在于：在池体的中部设置配水反应筒，配水反应筒的出口与清水出水堰连通，清水出水堰与池体四周的集水槽连通；配水反应筒的底部装有悬挂式中心传动浓缩机和锥型偏流板；配水反应筒的进口与内放絮凝剂的进泥管相通。In order to achieve the above purpose, the technical solution of the present utility model is: a high-efficiency concentration pool for sludge discharge, including a pool body, a mud inlet pipe, a dosing distributor, a mud accumulation area at the bottom of the pool body, an upper clarification area and the bottom of the pool body The mud collecting cone is characterized in that: a water distribution reaction cylinder is set in the middle of the pool body, the outlet of the water distribution reaction cylinder is connected with the clear water outlet weir, and the clear water outlet weir is connected with the sump around the pool body; the bottom of the water distribution reaction cylinder is equipped with hanging Type central drive thickener and conical deflector; the inlet of the water distribution reaction cylinder is connected with the mud inlet pipe with the flocculant inside.
上述浓缩池池体上部既可为圆形，也可为方形，下部为锥形。The upper part of the concentration pool body can be circular or square, and the lower part is conical.
上述配水反应筒由配水井和反应井组合而成。The above-mentioned water distribution reaction cylinder is composed of a water distribution well and a reaction well.
本实用新型具有如下的优点和积极效果：The utility model has the following advantages and positive effects:
1、克服了传统自来水厂排泥水缓慢的自然沉降缺点，提高了泥水分离效果和增加浓缩污泥含固率。1. It overcomes the shortcoming of slow natural settlement of muddy water discharged from traditional waterworks, improves the separation effect of muddy water and increases the solid content of concentrated sludge.
2、通过投加高分子聚合电解质和设置配水反应筒，有效地促进了浓缩池中污泥颗粒之间的均匀絮凝结大，然后通过固体接触过滤区，使得澄清出水的浊度较低，这样可有效提高浓缩过程中的固体通量，上升流速为2～10m/h，从而显著减少浓缩池面积及体积。2. By adding polymer polyelectrolyte and setting the water distribution reaction cylinder, the uniform flocculation and coagulation among the sludge particles in the thickening tank is effectively promoted, and then the turbidity of the clarified water is lower through the solid contact filter area, so that It can effectively increase the solid flux during the concentration process, and the rising flow rate is 2-10m/h, thereby significantly reducing the area and volume of the concentration pool.
附图说明：Description of drawings:
图1为本实用新型实施例的结构示意图Fig. 1 is the structural representation of the utility model embodiment
具体实施方式：Detailed ways:
下面结合附图和实施例对本实用新型进一步的描述。Below in conjunction with accompanying drawing and embodiment the utility model is further described.
本实用新型的排泥水高效浓缩池，它主要包括池体1，与池体1连通的进泥管2和加药分配器3，池体底部的积泥区4和上部的澄清区5及清水出水堰6、集水槽7，位于池中央的配水反应筒8，工作桥9和悬挂式中心传动浓缩机10。进泥管2中投加高分子聚合电解质聚丙烯酰胺(絮凝剂)，泥水和絮凝剂混合后进入位于池中央的配水反应筒8，形成易于沉淀浓缩的絮体，然后絮体向下经由池底附近的锥型偏流板11以20°～45°角注入到悬浮泥渣层中，固体物被拦截在泥渣层里，泥水自下而上穿过悬浮层，上清液汇流至浓缩池四周的集水槽7中，泥水得到澄清；浓缩的底泥被浓缩机10刮至集泥锥12中，通过浓度控制排出池外的储泥池中。The high-efficiency concentration pool for sludge discharge of the present utility model mainly includes a pool body 1, a mud inlet pipe 2 connected with the pool body 1, a dosing distributor 3, a mud accumulation area 4 at the bottom of the pool body, a clarification area 5 at the upper part and clear water Outlet weir 6, water collection tank 7, water distribution reaction cylinder 8 located in the center of the pool, working bridge 9 and suspended central drive concentrator 10. The polymer electrolyte polyacrylamide (flocculant) is added to the mud inlet pipe 2, and the muddy water and the flocculant are mixed and enter the water distribution reaction cylinder 8 located in the center of the pool to form flocs that are easy to settle and concentrate, and then the flocs go down through the pool The conical deflector 11 near the bottom is injected into the suspended sludge layer at an angle of 20°~45°, the solid matter is intercepted in the sludge layer, the muddy water passes through the suspension layer from bottom to top, and the supernatant flows into the concentration tank In the surrounding sump 7, the muddy water is clarified; the concentrated bottom mud is scraped into the mud collection cone 12 by the thickener 10, and discharged into the mud storage pool outside the pool through concentration control.
将配水反应筒8的出料向下注入泥渣层可保证向上的水流不会将泥层中的细小颗粒带走。上升的水流受到泥渣层的过滤，除去了所有细小的颗粒，得到了澄清的上清液。Injecting the discharge of the water distribution reaction cylinder 8 downward into the mud layer can ensure that the upward water flow will not take away the fine particles in the mud layer. The rising water is filtered by the sludge layer, which removes all fine particles and gives a clear supernatant.
上述浓缩池池体上部既可为圆形，也可为方形，下部为锥形。当上部为方形池体时，在池体的四角进行抹角处理，防止边角积泥。配水井和反应井组合成配水反应筒，该几何形状可保证良好的絮凝反应。加药扩散管可调整位置，易于确定絮凝剂最佳的投放点。The upper part of the concentration pool body can be circular or square, and the lower part is conical. When the upper part is a square pool body, the four corners of the pool body should be wiped off to prevent mud from accumulating on the corners. The water distribution well and the reaction well are combined into a water distribution reaction cylinder, and this geometry can ensure a good flocculation reaction. The position of the dosing diffusion tube can be adjusted, and it is easy to determine the best point of flocculant delivery.
高效浓缩池的底流浓度一般与絮凝剂的投加量成正比，因此，底流浓度就可以控制在理想的范围内，控制系统可建立在两个基本的、简单的控制回路上：第一，絮凝控制是通过调节加药泵的转速来实现稳定的絮凝剂用量(mg/L)，泥层高度作为反馈信号来控制絮凝剂用量设定点；第二，总固体量的控制是通过调节底流抽吸泵的转速来获得稳定的泥层质量。通过控制絮凝和总固体量来实现本实用新型浓缩工艺和底流浓度的稳定。The underflow concentration of the high-efficiency thickening tank is generally proportional to the dosage of flocculant. Therefore, the underflow concentration can be controlled within an ideal range. The control system can be established on two basic and simple control loops: first, flocculation The control is to achieve a stable flocculant dosage (mg/L) by adjusting the speed of the dosing pump, and the height of the mud layer is used as a feedback signal to control the set point of the flocculant dosage; second, the control of the total solids is by adjusting the underflow pump The rotation speed of the suction pump is used to obtain a stable mud layer quality. The concentration process of the utility model and the stability of the underflow concentration are realized by controlling the flocculation and the total solid content.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200961126U CN201458940U (en) | 2009-03-31 | 2009-03-31 | A high-efficiency concentration pool for sludge discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200961126U CN201458940U (en) | 2009-03-31 | 2009-03-31 | A high-efficiency concentration pool for sludge discharge |
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| Publication Number | Publication Date |
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| CN201458940U true CN201458940U (en) | 2010-05-12 |
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| CN2009200961126U Expired - Lifetime CN201458940U (en) | 2009-03-31 | 2009-03-31 | A high-efficiency concentration pool for sludge discharge |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835501A (en) * | 2012-11-27 | 2014-06-04 | 中国二十冶集团有限公司 | Construction method for large assembly type composite-structure concentration tank |
| CN105019653A (en) * | 2014-04-28 | 2015-11-04 | 中国二十冶集团有限公司 | Construction method for prefabricated assembled concrete underflow pump station |
| CN109775827A (en) * | 2019-01-29 | 2019-05-21 | 山西尊壹机电工程技术有限公司 | A kind of use in waste water treatment efficiently clarifies concentrator |
| CN112225429A (en) * | 2020-07-27 | 2021-01-15 | 中国电建集团华东勘测设计研究院有限公司 | Sludge concentration system and process for wastewater generated in sandstone processing |
-
2009
- 2009-03-31 CN CN2009200961126U patent/CN201458940U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835501A (en) * | 2012-11-27 | 2014-06-04 | 中国二十冶集团有限公司 | Construction method for large assembly type composite-structure concentration tank |
| CN103835501B (en) * | 2012-11-27 | 2016-03-30 | 中国二十冶集团有限公司 | The large-scale concentration basin construction method of assembling combination construction |
| CN105019653A (en) * | 2014-04-28 | 2015-11-04 | 中国二十冶集团有限公司 | Construction method for prefabricated assembled concrete underflow pump station |
| CN105019653B (en) * | 2014-04-28 | 2017-08-25 | 中国二十冶集团有限公司 | Prefabricated assembled concrete underflow pumping plant construction method |
| CN109775827A (en) * | 2019-01-29 | 2019-05-21 | 山西尊壹机电工程技术有限公司 | A kind of use in waste water treatment efficiently clarifies concentrator |
| CN112225429A (en) * | 2020-07-27 | 2021-01-15 | 中国电建集团华东勘测设计研究院有限公司 | Sludge concentration system and process for wastewater generated in sandstone processing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |