CN1211297C - 发泡曝气碟片 - Google Patents

发泡曝气碟片 Download PDF

Info

Publication number
CN1211297C
CN1211297C CNB021494479A CN02149447A CN1211297C CN 1211297 C CN1211297 C CN 1211297C CN B021494479 A CNB021494479 A CN B021494479A CN 02149447 A CN02149447 A CN 02149447A CN 1211297 C CN1211297 C CN 1211297C
Authority
CN
China
Prior art keywords
disc
aerating
foaming
polystyrene
aerating disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNB021494479A
Other languages
English (en)
Other versions
CN1417137A (zh
Inventor
姚念民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Tianjin Water Technology Engineering Co ltd
Usfilter Tianjin Water Technologies And Engineering Co ltd
Original Assignee
GUOMEI (TIANJIN) WATER BUSINESS EQUIPMENT ENGINEERING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GUOMEI (TIANJIN) WATER BUSINESS EQUIPMENT ENGINEERING Co Ltd filed Critical GUOMEI (TIANJIN) WATER BUSINESS EQUIPMENT ENGINEERING Co Ltd
Priority to CNB021494479A priority Critical patent/CN1211297C/zh
Publication of CN1417137A publication Critical patent/CN1417137A/zh
Application granted granted Critical
Publication of CN1211297C publication Critical patent/CN1211297C/zh
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

发泡曝气碟片涉及一种碟式表曝机的曝气碟片，由聚苯乙烯注塑成型，聚苯乙烯原料中添加有适量的发泡剂，在成型过程中可形成大量微小气泡，从而使成型的曝气碟片的比重降到1以下。发泡剂可由50%聚烯烃、20%聚碳酸合30%无机碳酸酯混配而成，发泡剂与聚苯乙烯的重量比为(0.75-2.3)∶100。本发明发泡曝气碟片成型工艺简单，曝气碟片成品的比重可降至1以下，可有效避免破损的碟片碎片沉入氧化沟污泥层而影响生化反应的正常进行。

Description

发泡曝气碟片
技术领域
本发明涉及一种碟式表曝机曝气碟片，特别是涉及一种比重小于1的发泡曝气碟片。
背景技术
按，氧化沟工艺是城市污水处理的主导工艺之一，在中小型污水处理厂中已得到日益广泛的应用，碟式表曝机即是氧化沟工艺的关键设备。碟式表曝机主要由水平传动轴和安装固定在水平传动轴上的一组圆形曝气碟片构成，水平传动轴通过轴承水平安装在轴承座上并可由电机和减速机驱动而带动曝气碟片在垂直平面内旋转，曝气碟片的下部边缘浸设在氧化沟水体中并借此推动水体在氧化沟中循环流动，同时使水体表面曝气而完成生化处理过程。
曝气碟片多采用聚苯乙烯注塑成型，由于聚苯乙烯的比重大于1，因此，在碟式表曝机运行过程中因意外原因造成曝气碟片破损时，破损的碟片碎片将沉入氧化沟底并扰乱沟底污泥层，从而影响生化处理过程的正常进行。为使曝气碟片的比重降到1以下，以避免破损的碟片碎片沉入污泥层，现有技术在碟片成型时采用了充氮技术，即在碟片注塑成型过程中向聚苯乙烯中吹入氮气，以在聚苯乙烯碟片内形成气泡，从而使碟片的比重降到1以下。充氮技术的缺陷是工艺和设备都比较复杂，而且碟片中的气泡也难以均匀并可能因此而影响碟片的机械强度。
发明内容
本发明的目的即在获得一种比重小于1的发泡曝气碟片。
为了实现上述目的，本发明在成型曝气碟片的聚苯乙烯原料中添加适量的发泡剂。
添加有发泡剂的聚苯乙烯在注塑成型过程中可形成大量微小的气泡，从而可使曝气碟片的比重降到1以下，而且成型工艺简单。此外，随着曝气碟片重量的减轻，碟式表曝机水平轴及轴承的受力状况得以改善，水平轴的挠度可降低，从而延长轴承的使用寿命。以下结合具体实施例对本发明发泡曝气碟片的技术特征作进一步的详细说明。
具体实施方式
本发明发泡曝气碟片仍由聚苯乙烯注塑成型，聚苯乙烯原料中添加有由50％聚烯烃、20％聚碳酸和30％无机碳酸酯混配而成的发泡剂，发泡剂与聚苯乙烯的重量比为(0.75-2.3)∶100。当上述重量比为2.0∶100时，注塑成型的发泡曝气碟片比重可降至0.9308。
总之，本发明发泡曝气碟片成型工艺简单，碟片比重可降至1以下，可避免破损碟片碎片沉入沟底污泥层而影响生化过程的正常进行。

Claims (3)

1.一种发泡曝气碟片，由聚苯乙烯注塑成型，所述发泡曝气碟片的特征在于，所述聚苯乙烯原料中添加由50％聚烯烃，20％聚碳酸和30％无机碳酸酯混配而成的发泡剂。
2.根据权利要求1所述的发泡曝气碟片，其特征在于所述的发泡剂与聚苯乙烯的重量比为0.75-2.3∶100。
3.根据权利要求2所述的发泡曝气碟片，其特征在于所述发泡剂与聚苯乙烯的重量比为2.0∶100，发泡曝气碟片成品的比重为0.9308。
CNB021494479A 2002-11-21 2002-11-21 发泡曝气碟片 Expired - Lifetime CN1211297C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB021494479A CN1211297C (zh) 2002-11-21 2002-11-21 发泡曝气碟片

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB021494479A CN1211297C (zh) 2002-11-21 2002-11-21 发泡曝气碟片

Publications (2)

Publication Number Publication Date
CN1417137A CN1417137A (zh) 2003-05-14
CN1211297C true CN1211297C (zh) 2005-07-20

Family

ID=4751682

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB021494479A Expired - Lifetime CN1211297C (zh) 2002-11-21 2002-11-21 发泡曝气碟片

Country Status (1)

Country Link
CN (1) CN1211297C (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114790859B (zh) * 2021-12-15 2023-06-23 重庆工业职业技术学院 一种教室双开门扇限位器的安装使用方法

Also Published As

Publication number Publication date
CN1417137A (zh) 2003-05-14

Similar Documents

Publication Publication Date Title
CN1146615C (zh) 用于生产开孔聚氨酯柔性泡沫体的硅氧烷表面活性剂
CA1039419A (en) Method and apparatus for treating liquor containing biodegradable wastes
CN107364960A (zh) 一种旋转式生活污水曝气机构
CA2610327A1 (en) Process and apparatus for increasing biological activity in waste treatment in bodies of water
CN1188462A (zh) 需氧处理污水的方法与处理池
CN106430545A (zh) 曝气滤池悬浮球填料
CN107673494A (zh) 一种高效曝气池
CA2909784C (en) Apparatus and method for enhanced wastewater treatment
CN1211297C (zh) 发泡曝气碟片
CN108504058A (zh) 自增氧微生物降解填料及其制备方法
CN107867754A (zh) 一种节能型曝气池装置
CN1486284A (zh) 废水处理装置中使用的厌氧生物反应器
CN110117064A (zh) 一种使用纳米曝气技术的生物接触氧化工艺及其设备
CN108516616A (zh) 一种防止污泥堆积的好氧池
CN202322548U (zh) 厌氧、缺氧、好氧与生物模反应器浮艇曝气的组合装置
CN1093381A (zh) 超大孔网络状聚氨酯材料的制备方法
JP2000189991A (ja) 廃水処理方法およびその装置
CN207918520U (zh) 一种用于污水处理的曝气装置
CN107265623A (zh) 一种可搅拌曝气的时控机械式间歇反应器
CN101306877A (zh) 一种复合式膜生物反应器处理污水的方法
CN109368772A (zh) 循环流固定床好氧生物滤池
CN207632598U (zh) 活性污泥废水处理设备
CN206069628U (zh) 一种mbbr污水处理系统
CN218058742U (zh) 一种带有搅拌机的小型生活污水处理设备
JP2006249422A (ja) 切削加工用ポリウレタン樹脂形成性組成物

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: GUOMEI (TIANJIN) WATER TECHNOLOGY ENGINEERING CO.,

Free format text: FORMER NAME: SIEMENS (TIANJIN) WATER TECHNOLOGY ENGINEERING CO., LTD.

Owner name: SIEMENS (TIANJIN) WATER TECHNOLOGY ENGINEERING CO.

Free format text: FORMER NAME: GUOMEI (TIANJIN) WATER BUSINESS EQUIPMENT ENGINEERING CO., LTD.

CP01 Change in the name or title of a patent holder

Address after: 300000 Tianjin economic and Technological Development Zone Xin Garden New Village No. 3

Patentee after: USFILTER (TIANJIN) WATER TECHNOLOGIES AND ENGINEERING Co.,Ltd.

Address before: 300000 Tianjin economic and Technological Development Zone Xin Garden New Village No. 3

Patentee before: SIEMENS (Tianjin) water technology Engineering Co.,Ltd.

CP03 Change of name, title or address

Address after: 300000 Tianjin economic and Technological Development Zone Xin Garden New Village No. 3

Patentee after: SIEMENS (Tianjin) water technology Engineering Co.,Ltd.

Address before: 300074 Hexi District Meteorological Observatory Road, Tianjin, No. 99

Patentee before: Guomei (Tianjin) Water Business Equipment Engineering Co.,Ltd.

CX01 Expiry of patent term

Granted publication date: 20050720

CX01 Expiry of patent term