ISO 924:1989 PDF

Name: ISO 924:1989 — Coal preparation plant — Principles and conventions for flowsheets
SKU: ISO 924:1989
Price: 25 EUR
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Coal preparation plant — Principles and conventions for flowsheets

Название (английский):

ISO 924:1989

Coal preparation plant — Principles and conventions for flowsheets

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 5
Дата публикации:: 30 ноября 1989 г.
Издание:: ISO IS 924 edition 2 version 1
ICS:: 73.120

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Описание (английский):

Sets out principles and conventions for use in preparation of basic process and equipment flowsheets for the design of a coal preparation plant. In order to cover the various stages leading to the final design of a plant, two basic flowsheets are needed, one bases on the process and the other on the equipment. Examples of process and equipment flowsheets are shown in figures.

Abstract

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Overview

ISO 924:1989 provides principles and conventions for preparing process and equipment flowsheets used in the design of coal preparation plants. The standard promotes a common graphical language and consistent capacity definitions so that process flowsheets and equipment flowsheets can be understood universally across project stages-from preliminary layouts to final design.

The document complements related ISO work (notably ISO 561 symbols and ISO 1213-1 vocabulary) and includes example diagrams illustrating a process flowsheet and an equipment flowsheet.

Keywords: ISO 924, coal preparation plant, flowsheet, process flowsheet, equipment flowsheet, capacity notation, standardized symbols.

Key Topics

Two basic flowsheet types

Process flowsheet: shows main treatment steps, material movement between stages, and product streams.
Equipment flowsheet: shows machines and apparatus using conventional symbols (refer to ISO 561).

Capacity definitions and notation

Capacity nominal, project capacity, operating capacities, peak project capacity, and mechanical maximum capacity are defined to clarify design expectations and performance guarantees.
Capacities are to be shown on flowsheets in a standardized way (e.g., project capacities above horizontal lines or left of vertical lines; mechanical maxima in parentheses).

Graphical conventions

Flow lines should be horizontal or vertical and enter/exit symbols at consistent sides to convey left-to-right flow.
Grain-size ranges and tonnages should be shown with units (mm for mesh sizes, t for tonnes where appropriate).
Use dots to indicate junctions; crossing lines should not imply junctions unless explicitly marked.
Machines on equipment flowsheets should use standardized symbols and, where needed, note unit counts and dimensions.

Grouping of operations

Typical groupings include feed preparation, washing, complementary product treatment (e.g., dewatering), storage/handling, product characteristics and destinations.

Applications

Early-stage plant concept development and process selection.

Preparation of clear design and tender documents that reduce ambiguity on capacities and guarantees.

Communication between process, mechanical and project teams for equipment selection and layout planning.

Standardized flowsheets facilitate regulatory review, commissioning planning and operator training.

Related Standards

ISO 561: Graphical symbols for coal preparation equipment (used for equipment flowsheets).

ISO 1213-1: Vocabulary for solid mineral fuels (terms for coal preparation used in ISO 924).

Adopting ISO 924 conventions helps engineers and stakeholders produce consistent, unambiguous flowsheets that streamline design reviews, procurement and plant handover while reducing misinterpretation during detailed engineering.

ISO 924:1989 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

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