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GB/T 37251-2018Cordierite-based ceramic high temperature gas filter elements (English PDF)

堇青石基高温陶瓷膜过滤元件

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 28, 2018

Implementation date

November 1, 2019

Scope

GB/T 37251-2018 is the English-translated version of 堇青石基高温陶瓷膜过滤元件.

GB/T 37251-2018 covers cordierite-based ceramic membrane filter elements used to clean hot gases. It defines the element as a porous ceramic article made of a support and a separation membrane, together with membrane area, filtration velocity and filtration pressure drop, the latter measured with clean air at a filtration velocity of 1 m/min.

It sets out the product classification, technical requirements, test methods and inspection rules, as well as marking, packaging and storage, with tests drawn from the national methods for porosity and bulk density, pore size, acid and alkali corrosion resistance, bending strength of ceramic tubes and thermal shock resistance.

It applies to high-temperature gas and flue gas purification in industrial boilers, metallurgical smelting, building materials and waste incineration. It was issued on 28 December 2018 and has applied since 1 November 2019.

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Document preview — GB/T 37251-2018

National Standard of the People's Republic of China

ICS: 81.060.30
Classification: Q 32

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

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

1 Scope

This standard specifies the terms and definitions, product classification, technical requirements, test methods, and inspection rules for cordierite-based high temperature ceramic membrane filter elements. Then, sign, package and store.

This standard is applicable to cordierite-based high-temperature ceramic membrane filter elements for high-temperature gas purification, and is also applicable to industrial boilers, metallurgical smelting, building materials, High-temperature ceramic membrane filter element for high-temperature gas (smoke) purification in the field of waste incineration.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 1966 Porous ceramics showing porosity and bulk density test method

GB/T 1967 Porous Ceramic Hole Diameter Test Method

Test method for acid and alkali corrosion resistance of GB/T 1970 porous ceramics

GB/T 2833 ceramic tube bending strength test method

GB/T 6719 bag filter technical requirements

GB/T 16536 engineering ceramics thermal shock resistance test method

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 High temperature ceramic membrane filter element

A high temperature resistant porous ceramic article composed of a support and a separation membrane.

3.2 Membrane area

The outer surface of the ceramic component serves as an effective area for filtering.

3.3 Support

The base of the ceramic membrane filter element provides strength support for the separation membrane and the like.

3.4 Separation membrane

A film that adheres to the outer surface of the support and has a fine pore size and functions as a surface filter.

3.5 Filtration wind speed

The surface velocity of the fluid through the ceramic membrane element.

3.6 Filtration pressure drop

Under standard conditions, with clean air as the filter medium, the resistance of the gas passing through the membrane element is lowered under the condition of a filtration wind speed of 1 m/min.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

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