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GB 32276-2015 English PDF

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GB 32276-2015: Safety regulations for dust explosion protection in textile industry
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Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB 32276-2015	English	239	Add to Cart	3 days [Need to translate]	Safety regulations for dust explosion protection in textile industry	Valid	GB 32276-2015

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GB 17440 GB 17440 GB/T 17919 GB 32275

Basic data

Standard ID	GB 32276-2015 (GB32276-2015)
Description (Translated English)	Safety regulations for dust explosion protection in textile industry
Sector / Industry	National Standard
Classification of Chinese Standard	C67
Classification of International Standard	13.230
Word Count Estimation	11,148
Date of Issue	2015-12-10
Date of Implementation	2017-01-01
Quoted Standard	GB 12158; GB 12476.1; GB 12476.2-2010; GB 15577; GB/T 15604; GB/T 15605; GB 50057; GB 50058-2014; GB 50565; AQ/T 9006
Regulation (derived from)	National Standard Announcement 2015 No.38
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the explosion-proof safety requirements for dust explosion hazards in the textile industry. This standard is applicable to the engineering design, construction and production management of dust explosion hazardous places in the textile industry using cotton, hemp, wool, blended, chemical fiber and silk as raw materials. The use of other raw materials, textile industry enterprises can refer to the implementation of this standard.

GB 32276-2015: Safety regulations for dust explosion protection in textile industry

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Safety regulations for dust explosion protection in textile industry ICS 13.230 C67 National Standards of People's Republic of China Textile industrial dust explosion safety regulations Published 2015-12-10 2017-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Preface Ⅰ 1 Scope 1 2 Normative References 1 Terms and definitions 1 3 Principle 4 textile fibers division of dust explosion hazardous areas and scope 2 4.1 Principles of textile fibers division of dust explosion danger of 2 4.2 textile industry enterprises dust explosion hazardous areas range 2 5 Architecture and Structure 3 5.1 General Requirements 3 5.2 plant layout 3 5.3 Building structure 3 6 Dust Control 4 6.1 General provisions 4 6.2 ventilation and dust removal 4 Electrical device 5 7 7.1 General Provisions 5 5 7.2 Electrical Equipment 7.3 electrical wiring 5 7.4 lightning protection, anti-static grounding and 6 8 operational safety management and dust chamber 6 8.1 General Provisions 6 6 8.2 Safety Management Dust Management 8.3 Room 7

Foreword

All technical contents of this standard is mandatory. This standard was drafted in accordance with rules GB/T 1.1-2009 given. This standard was proposed by the State Administration of Production Safety Supervision and Management. This standard by the National Safe Production Standardization Technical Committee (SAC/TC288). This standard was drafted. Wuhan Textile University, Wuhan Steel Group Environmental Safety Institute, Jiangsu Buffett media Ltd., Shandong Province gold Air Conditioning Equipment Co., Ltd. textile fan letter. The main drafters. Shi Jianzhong, Xu Guoping, Wangxiu Qing, Wang Aimin, Li Yu, Wu before, Ding Jingzhi, Wang Zhenggang, Chen Jun, Wu Xiaoyu, There Bang music. Textile industrial dust explosion safety regulations

1 Scope

This standard specifies the safety requirements for explosion-proof textile industry in dust explosion hazardous locations. This standard applies to the use of cotton, linen, wool, blended, chemical fiber, yarn and other raw materials for the textile industry dust explosion hazardous areas of engineering design, Shi Engineering, production management. Use of other raw materials textile industry enterprises may comply with this standard.

2 Normative references

The following documents for the application of this document is essential. For dated references, only applies to the version dated paper Pieces. For undated references, the latest edition (including any amendments) applies to this document. GB 12158 prevent static electricity accident General Guidelines GB 12476.1 combustible dust electrical equipment - Part 1. General requirements (IEC 61241-0.2004, MOD) GB 12476.2-2010 combustible dust electrical equipment - Part 2. Selection and installation (IEC 61241-14.2004, IDT) GB 15577 Dust explosion safety regulations GB/T 15604 dust explosion term GB/T 15605 Dust Explosion Relief Guide GB 50057 Lightning in design GB 50058-2014 explosive atmospheres design of electric installations GB 50565 Textile fire protection engineering design AQ/T 9006 basic norms of corporate safety standardization

3 Terms and Definitions

GB/T 15604 and as defined in the following terms and definitions apply to this document. 3.1 Textile Industry textileindustry Natural or natural fibers, synthetic polymer compound as raw material, chemical and physical methods to obtain fibers, and these Fiber production of various products of the industrial chain. Including. textiles, textile and garment industry, chemical fiber manufacturing, chemical fiber raw materials manufacturing industry. 3.2 Dust chamber dustcolectionroom Installation dust removal equipment (complete with fan attachment) of the building. 3.3 Dust trench dusttrench For laying underground transport channel containing fibers, dust and metal pipes. 3.4 Opening and Cleaning blowingandscotchingprocess Bulk material is for opening, cleaning, mixing, and made into a lap or cotton with carding layer. The main equipment used is the opening and cleaning the joint Machine, a bale, cotton box, and the opener roll mechanical composition (when combined steel cleaning machines, no machine roll). Metal impurities mixed in feed Easy to produce sparks in equipment operation.

4 textile fiber dust explosion hazardous areas and scope of the principle of division

4.1 Principles of textile fibers division of dust explosion hazardous locations 4.1.1 According to the duration and frequency of occurrence of an explosive mixture of dust, textile fiber dust explosion hazardous areas according to the following provisions Subdivision. a) 20 Region. During normal operation, textile fiber dust continuously or frequently, in an amount sufficient to form a flammable dust and Or a mixture of air and may form a very thick layer of dust properties uncontrollable. b) 21 Area. not classified as zone 20 spaces. However, in the number of normal operating conditions, it may appear sufficient to form a combustible dust and air Dust mixture of textile fibers. c) 22 Region. No region is divided into 21 spaces. Textile fiber dust cloud only a short time and the presence of occasional or abnormal conditions Deposited layer or dust may be present in woven fibrous dust occurs, and the dust mixed with the air to produce a mixture of textile fibers. If it is not guaranteed to exclude dust accumulations or woven fabric layers should be divided into 21 regions. 4.1.2 textile fibers division of dust explosion hazardous areas, should be a source of textile fiber dust release position, and the possibility of releasing the number of dust, Ventilation and dust explosion conditions and other conditions determined. 4.1.3 hole wall-free or with a normally closed fire door and the spring region 20, region 21, region 22 spaced regions, non-dust explosion can be classified Dangerous zone. 4.2 textile industry enterprises dust explosion danger of range Textile industry dust explosion hazard sites as shown in Table 1 partition. Table textile industry enterprises dust explosion hazard Zone 1 Production of the field region 20 region 21 region 22 region Opening and picking workshop - V - Carding workshop - - V And Article workshop - - V Roving workshop - - V Spinning workshop - - V After the spinning process (winding, doubling, twisting, and reeling into a package) - - V Weaving workshop - - V Dust chamber - V - Packing, offal recovery plant - V - Raw materials warehouse - - V

5 Architecture and Structure

5.1 General requirements 5.1.1 construction (structures) in addition shall comply with relevant national or industry standards, it must also comply with this standard. 5.1.2 textile fiber dust explosive atmosphere should be set fire, explosion-proof wall in place. 5.2 plant layout 5.2.1 dust chamber should be arranged separately. Dust the upper chamber should be arranged between production plants, workshops and assisted living. Indoor dust should not be set to do Public rooms, lounge. If the next, it should meet the requirements of GB 50565. 5.2.2 dust chamber is provided separately from the other plant shall comply with the relevant provisions of GB 50565. 5.2.3 fan chamber, should be dedicated dust chamber, should also having other purposes; not to be arranged in the basement or semi-basement. 5.2.4 the control chamber, the distribution chamber should be provided separately, and should not be disposed above the dust explosion hazardous locations. 5.2.5 Textile raw materials library should not be located in the underground, and should have good ventilation facilities. 5.3 Building structure 5.3.1 Explosion Venting 5.3.1.1 20 regions, 21 regions construction (structure) should be set explosion venting port. Glass doors, windows, light wall and roof light as explosion venting area calculation. 5.3.1.2 As quality lightweight wall and roof light explosion vent port should not exceed 60kg/m2. 5.3.2 Ground 5.3.2.1 textile floor shop floor should sparking does not occur, and should be flat, smooth and easy to clean. 5.3.2.2 When the insulating material surface layer as a whole, should take anti-static measures. 5.3.3 Wall And the inner surface of the building member surface should be smooth. 5.3.4 Window Window as effective explosion venting port type should open outwards. 5.3.5 Door For isolating between the gate regions to be not less than B fire doors standard, and should be closely dust. For explosion vent door should open outwards. 5.3.6 dust chamber building structure 5.3.6.1 dust chamber should be arranged directly outside the door, the window or housing attached independent building framework should, should not occur Sparks ground, and the adjacent walls of the room should be blast walls, explosion-proof wall or not to open a hole through the pipeline. 5.3.6.2 Dust relief facilities should be located, and shall comply with GB/T 15605 of the relevant provisions. Relief should be close to the surface prone to explosion Area, external centralized personnel should avoid places and important roads. 5.3.7 Waste removal 5.3.7.1 Dust waste should have good waterproof performance to ensure trench drying; outdoor section of the trench dust cold areas should be prepared Roof insulation, to prevent condensation trench. 5.3.7.2 Mizoguchi the dust chamber at the entry to be set off, through the pipe should be sealed. Of adjacent inter-vehicle communication, should be non-combustible materials seal.

6 dust control

6.1 General provisions 6.1.1 should be personnel, machinery, technology, materials, environment and many other considerations dust control measures and methods, adhere to both management and fortification, elimination In addition to the conditions of dust explosion, dust explosion. 6.1.2 The textile industry based on dust explosion hazard grades, or take ventilation, dust removal system and dust control measures should be consistent with the job Claim. 6.2 ventilation and dust removal 6.2.1 Cleaning System division 6.2.1.1 blowroom plant dust removal system should be provided separately. 6.2.1.2 local exhaust system should be provided separately, and not with the dust removal system in conjunction with a pneumatic conveying system. 6.2.1.3 regions with different levels of risk of dust explosion, dust removal system should not be shared. As must be combined, the dust removal system should be higher dust explosion Level standard design. 6.2.2 Dust arrangement and selection device 6.2.2.1 different areas dust explosion hazard class, dust removal equipment should be arranged, respectively, should not be sent, ventilation and air-conditioning device is arranged at the same In the rooms. 6.2.2.2 filter should be arranged on the suction of the dust removal system, not arranged directly in the workshop. 6.2.2.3 Dust filter apparatus should be continuous, continuous dust discharge, should not be taken to deal with the settling chamber, and supporting the dust filter should be provided in the dust collector chamber Outside the room or explosion venting facilities. 6.2.2.4 Dust Explosion Venting equipment should be taken or explosion suppression measures. Explosion venting means comprises a vent explosive flame, flameless explosion venting. 6.2.2.5 dust blower and motor coaxially coupled to the drive should be used. 6.2.3 Dust and conduit arrangement 6.2.3.1 dust duct, pneumatic feed pipe a circular cross section should, to avoid dust deposition pipe laying. 6.2.3.2 dust wind pipe trench is provided when needed, different areas or into communication systems should trench. 6.2.3.3 delivery duct should satisfy the requirements of dust to the dust, and meet the following requirements. a) Dust duct should ensure the wind speed is not deposited; b) Avoid long horizontal pipe; c) horizontal tubes and bends to be opened hole cleaning in place; d) a smooth transition pipe, and bends to minimize the abrupt change in diameter; e) not closed pipe leakage; f) conduit strength to withstand the maximum pressure of the fan should be produced under a variety of conditions. 6.2.3.4 should set the fire and explosion safety mechanism to prevent dust explosions pipeline between dust removal system spread, spread. 6.2.4 return air and dust 6.2.4.1 air containing combustible dust and fibers not subjected to dust removal, should not be recycled. In air containing dust into the exhaust It should be preceded dedusting machine. Not the dust in the air conditioning chamber adjacent to the chamber wall openings should return air back to the column with a dust chamber 6.2.4.2 treated air; reuse empty Gas chamber allowing dust content should not exceed 50% of the dust concentration. 6.2.5 dust cleaning 6.2.5.1 should be cleaned of dust adhered to the surface of the ground, wall, equipment and the like. 6.2.5.2 should be clean dust vacuum cleaner and the like. When cleaning dust, should avoid secondary dust.

7 Electrical Equipment

7.1 General provisions 7.1.1 textile industry electrical engineering should be anti-explosive dust environment requirements for the design, and in line with GB 50058-2014 and GB 12476.1 of the relevant provisions. NOTE. GB 10 GB 20 and region 50058-2014 12476.2-2010 region, the region 21, GB 11 GB 12476.2-2010 region 50058-2014 and 22 corresponds to the region. 7.1.2 The textile industry should be set to meet the production process requirements, to ensure safety in production of electrical interlock. Electrical interlocking include. a) In the dust removal system electrical interlock between the dust removal equipment; b) an electrical interlock between the dust removing equipment and process equipment; Emergency Stop c) dust removal system; d) removal equipment should follow the first opening, the opening process equipment; process equipment first stop, the stop order opening dust removal equipment, down principle. 7.1.3 region 20, region 21, region 22 and electrical equipment in the line should be dust explosion is less dangerous or explosive area is provided and laid out. 7.1.4 region 20, region 21 should be electrical equipment and GB 12476.1 GB 12476.2-2010 predetermined selection. Electrical equipment and wiring to be Mounting means short circuit and overload protection. 7.2 Electrical Equipment 7.2.1 zone 20, zone 21, zone 22 electric equipment selection, installation, inspection, maintenance, design, construction, testing and marking requirements should meet GB 12476.1 provisions should be selected in line with the relevant electrical device in accordance with predetermined environmental characteristics GB 12476.1. 7.2.2 the surface of electrical equipment to allow the maximum temperature should be in accordance with the provisions and GB 12476.2-2010 site environment, determined by experiment, and does not It should be more than 110 ℃. 7.2.3 Zone 20, Zone 21 the lamp shall comply with the provisions of GB 12476.1. Zone 20, zone 21 should not be mounted receptacle; the receptacle to be installed, Shall comply with the provisions of GB 12476.1. 7.2.4 zone 20, zone 21 should not use a mobile electric device, used in the above region portable lamp, the lamp cap should meet the requirements of GB 12476.1. 7.2.5 3kV ~ 10kV and above as far as possible distribution unit is not installed in the region 20, region 21, region 22. The following distribution apparatus 1000V It should be installed in the individual rooms separated by a wall or dusts easily accumulated. Installation 7.2.6 Electrical equipment shall comply with the provisions of GB 12476.2-2010. Installation of electrical equipment should take appropriate measures to prevent the Can experience external influences (eg. chemical, mechanical and thermal stresses). Installation of electrical equipment room should be noted that the holding device and the electrical creepage distance Gap, avoid the possibility of generating arcs or sparks. 7.2.7 region 20, region 21, region 22 should be taken to avoid high intensity radiation source to become an ignition source. Installation of electrical equipment should be provided Ease of inspection, maintenance and cleaning of the channel. 7.3 electrical wiring 7.3.1 region 20, region 21 and region by not independent cables and electrical lines, as is inevitable, should meet GB 12476.2-2010 Provisions. 7.3.2 region 20, region 21, region 22 should be used in electrical wiring or copper wire copper cables, selection and installation should meet GB 50058-2014 And the provisions of GB 12476.2-2010. 7.4 lightning protection, grounding and anti-static 7.4.1 lightning and the lightning invasion wave of measures should comply with the relevant requirements of GB 50057. 7.4.2 antistatic textile industry should comply with GB 12158 of the relevant provisions. 7.4.3 ground textile industry should meet the requirements of GB 50058-2014; allow the use of construction (structure) of the steel structure for the lightning protection system, A ground electrode, between the deflectors, the receptor to be electrically connected; electrical grounding, the grounding protection, and anti-static grounding lightning grounding a shared Grounding means grounding resistance is the minimum value. 7.4.4 textile industry equipment rack, metal dusting piping should be grounded, or connected directly to the grounding line. 7.4.5 in the area 20, area 21 of the operator should wear antistatic (conductive) shoes, not in the region 20, region 21 wearing clothes, cap or the like.

8 operational safety and dust removal room management

8.1 General Provisions 8.1.1 textile industrial dust explosion safety production management should comply with AQ/T 9006 regulations. Phase of work in dust explosive atmospheres Off practitioners should be safety, dust-proof technical training; without the safety, dust-proof technical training or training qualified, not Work posts. 8.1.2 Dust proof equipment should be checked regularly to ensure good performance; should not be allowed to change any device dust explosion. For transformation, its Department responsible for the design should have appropriate qualifications. 8.2 Safety Management 8.2.1 should have a set of rules dust explosion-proof security technology, management rules, Overhaul and Maintenance Rules; and regular dust removal equipment and Safety and anti-static grounding means piping system is detected, to ensure that equipment, the normal operation. Detection should make a record, by the person Signature member. The relevant provisions should be GB 15577 implementation during fire operations 8.2.2 shop. 8.2.3 should be equipped with the necessary monitoring equipment, fixed time plant air dust concentration, dust control system, temperature, humidity, pressure and the like into Line testing, create a file system in order to keep abreast of the work, study and formulate appropriate safety technical improvements or requesting the authorities Association Regular monitoring of aid. 8.2.4 dust chamber should be checked regularly, automatic sprinkler system for distributing and fire extinguishing device places dust, normally always guaranteed investment use. 8.2.5 plant process equipment should be checked regularly and the dust chamber, the fan air supply chain means and periodic testing to ensure that it is ready to be Start state. 8.2.6 maintenance should not be less than once a month (maintenance shutdown), while maintenance and cleaning work should make a thorough workshop equipment. 8.2.7 a lower dust hopper devices are operating, maintenance should prevent debris falling metal dust hopper. 8.2.8 should be checked regularly dust pipe wall, or if the fouling deposits should be promptly removed. 8.2.9 Dust required process equipment, care should focus easily wound site and friction overheating. Found abnormal should stop immediately, check processing Before driving after confirming that no risks. 8.2.10 cleared of dust mixed application container sealed good, with clear and should be shipped with the cleaning cycle to develop appropriate amount depending on how much dust. 8.3 Dust room management Each operating mechanism 8.3.1 dust chamber, should be clearly marked, specially designated employees regular technical inspection and maintenance to ensure its operation Defined work index (the resistance, the lower limit; air dust concentration after purification) within the range. Faulty dust removal equipment should not be used. 8.3.2 dust chamber hazardous areas should be managed, supervised, unrelated persons prohibited from entering. Dust should work lacing shoes and nails of Fiber clothing, should not use a shovel to clear dust.

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