CJ/T 522-2018Traveling-bridge suction degritter for grit chamber in sewage treatment plant (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces CJ/T 3044-1995 "Grinding sand driving type sand scraping machine for sewage treatment", compared with CJ/T 3044-1995, mainly the technical changes are as follows.

--- Added terms and definitions (see 3);

--- Increased the type and schematic of the grit chamber driving sand suction machine (see 4.1);

--- Increased the basic parameters of the grit chamber driving sand absorbing machine (Table 1);

---Modified the contents of the request (see 5, 6);

--- Increased requirements for sand absorption and stripping devices (see 6.3);

--- Increased the requirements of the scraping device (see 6.4);

--- Increased requirements for collectors (see 6.5);

--- Increased noise requirements (see 6.9);

--- Revised test methods and inspection rules (see 7, 8).

This standard was proposed by the Institute of Standardization of the Ministry of Housing and Urban-Rural Development.

This standard is under the jurisdiction of the Municipal Water Supply and Drainage Standardization Technical Committee of the Ministry of Housing and Urban-Rural Development.

This standard was drafted. China Municipal Engineering North China Design and Research Institute Co., Ltd., Jiangsu Tianyu Environmental Protection Group Co., Ltd., Nantonghua New Environmental Equipment Engineering Co., Ltd., Wuxi General Machinery Factory Co., Ltd., Jiangsu Zhaosheng Environmental Protection Co., Ltd., Lanshen Group Company, Jinjian Environmental Protection Co., Ltd., Jinshan Environmental Protection Group Co., Ltd., Henan Urban and Rural Planning and Design Research Institute Co., Ltd., Zhejiang Lianchi Water Equipment Co., Ltd., Zhejiang Dean Technology Co., Ltd., Jiangsu Wuhuan Water Engineering Co., Ltd.

1 Scope

This standard specifies the terms and definitions, types, models and bases of the grit chamber driven sand suction machine for sewage treatment (hereinafter referred to as "sucking machine").

This parameter, requirements, test methods, inspection rules, marking, packaging, transportation and storage.

This standard applies to the manufacture and inspection of sand absorbing machines in sewage treatment projects.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 packaging storage and transportation pictorial signs (GB/T 191-2008, ISO 780:1997, MOD) GB/T 755 Rotating Electric Machine Quota and Performance (GB/T 755-2008, IEC 60034-1:2004, IDT) GB/T 3768 Acoustic sound pressure method for the determination of noise source sound power level (GB/T 3768-1996, eqvISO 3746..1995) GB/T 3797 electrical control equipment GB 4053.3 Fixed steel ladders and platforms - Safety requirements - Part 3. Industrial protective railings and steel platforms GB/T 4208 enclosure protection grade (IP code) (GB/T 4208-2017, IEC 60529:2001, IDT) GB/T 4942.1 Classification of the degree of protection (IP code) of the overall structure of rotating electrical machines (GB/T 4942.1-2006, IEC 60034-5.

2000, IDT)

GB 5226.1 Mechanical electrical safety machinery and electrical equipment - Part 1. General technical conditions (GB 5226.1-2008, IEC 60204-1:2005, IDT) GB/T 8923.1.Determination of surface cleanliness of steels - Part 1 . Uncoated steel Corrosion grade and treatment grade of steel surface after surface and overall removal of original coating (GB/T 8923.1-2011, ISO 8501-1.

2007, IDT)

GB/T 13306 signage

General technical conditions for GB/T 13384 mechanical and electrical product packaging GB 18613 Small and medium-sized three-phase asynchronous motor energy efficiency limit value and energy efficiency rating GB 50205-2001 Steel structure engineering construction quality acceptance specification GB 50661 Steel Structure Welding Specification JB/T 5000.12 General technical conditions for heavy machinery - Part 12. Painting JB/T 6392 crane wheel SJ20893 Stainless Steel Pickling and Passivation Specification

3 Terms and definitions

The following terms and definitions apply to this document.

Driving sand absorbing machine travel-bridgesuctiondegritter A device that walks horizontally along the top of the pool to remove the sand-water mixture from the bottom of the grit chamber.