Food processing equipment - Motor-operated equipment - Planetary mixers
1 Scope
This document specifies the technical requirements and inspection rules for planetary mixers fitted with a bowl-shaped drum (hereinafter referred to as the “drum”), defines the relevant terms and definitions, describes the classification of structure, verification of measures and relevant hazards in different zones, and gives information for their use.
This document applies to planetary mixers with a drum capacity of ≥5L and ≤200L for processing various food materials in food shops. Food materials include cocoa powder, flour, sugar, oils and fats, meat stuffings, eggs and other materials. This document may be used as a reference for mixers in food industry, pharmaceutical industry, chemical industry, printing industry and other industrial places.
This document does not apply to:
——Auxiliary accessories of planetary mixers;
——Continuous feeders;
——Vertical dough mixers (GB/T 22748);
——Whipping mixers without parallel shafts;
——Equipment in the experimental stage of development by the manufacturer;
——Household apparatuses.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1031-2009 Geometrical product specifications (GPS) - Surface texture: Profile method - Surface roughness parameters and their values
GB/T 3767-2016 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
GB/T 4208 Degrees of protection provided by enclosure (IP code)
GB 4706.1-2005 Household and similar electrical appliances - Safety - Part 1: General requirements
GB 4706.38 Household and similar electrical appliances - Safety - Particular requirements for commercial electric kitchen machines
GB/T 6881.2 Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Comparison method for a hard-walled test room
GB/T 14574 Acoustics - Declaration and verification of noise emission values of machinery and equipment
GB/T 15706-2012 Safety of machinery - General principles for design - Risk assessment and risk reduction
GB/T 16855.1-2018 Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design
GB/T 17248.2-2018 Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections
GB/T 18153 Safety of machinery - Temperatures of touchable surfaces - Ergonomics data to establish temperature limit values for hot surfaces
GB/T 18831-2017 Safety of machinery - Interlocking devices associated with guards - Principles for design and selection
GB/T 22747-2022 Food processing equipment - Basic requirements
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 15706-2012 and the following apply.
3.1
tool
detachable unit with stirring, mixing and kneading functions and capable of doing planetary movement
Note 1: Tools come in different shapes.
Note 2: In this document, the scraper is considered to be a tool.
3.2
planetary movement
rotational movement of the tool around two parallel shafts, i.e. the shaft passing through the tool body and the shaft inside the drum
3.3
working position
position when both the drum and the tool are stable, with the drum locked in the upper position and the tool locked to the shaft and closest to the bottom of the drum
4 General
4.1 Structure of planetary mixer
The structure of the planetary mixer is shown in Figure 1.
——Transmission mechanism, complete with that of the tool;
——Control device;
——Drum, for processing materials;
——Tool, interchangeable, for processing materials, with constant or variable speed;
——Auxiliary driving devices, such as knife holder and vegetable holder;
——Handle, which enables the drum to move vertically, or facilitates the disassembly of the mixing head of the tool;
——Trolley, a device for maneuvering the drum;
——Protective cover;
——Drum heating device (optional, not included in Figure 1);
——Drum cooling device (optional, not included in Figure 1);
——Drum gravity discharge device (optional, not included in Figure 1).
Contents
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 General
5 Description of relevant hazards
6 Technical requirements
7 Verification of measures
8 Inspection rules
9 Information for use
Annex A (Normative) Noise test specification
Annex B (Normative) Dust test specification
Annex C (Normative) Design principles for cleanability
Bibliography
