GB21009-2007
Mine blast-hole drills - Safety requirements
矿用炮孔钻机 安全要求
GB 21009-2007 is a current mandatory Chinese national standard for Mine blast-hole drills - Safety requirements. It appears in the Electronics compliance cluster with a product safety focus and has an implementation date of Jan 1, 2008.
Applicability depends on product scope, certification route, competent authority notices and transition rules. Requst for the translation or verify source before using this record in a compliance decision.
Compliance overview
Scope and applicability
This standard applies to the safety requirements of mine blast-hole drills used in open-pit and underground mines, as well as tunnels. It covers various types of drilling equipment, including rock drilling jumbos, cable percussion drills, down-the-hole (DTH) drills, rotary drills, and roller cone drills. It is mandatory for all manufacturers and operators of these mining drills in China. The standard addresses hazards arising during the machine's lifecycle, such as transportation, installation, operation, and maintenance.
Technical requirements
The standard specifies comprehensive safety requirements across multiple domains to mitigate risks associated with mining drills. It mandates that equipment design follows ergonomic principles to reduce operator fatigue and requires protective measures against contact with hot or cold surfaces. Manufacturers must ensure that all energy sources can be safely isolated and residual energy released. For operator safety, the standard outlines specific requirements for operator cabins, including temperature control, air purification, noise limits, and vibration reduction. Control systems must comply with relevant safety standards, featuring emergency stop devices and interlocks to prevent accidental startup. The standard also details stability requirements, ensuring drills do not tip or slide during operation or transit. Furthermore, it sets stringent guidelines for braking systems, requiring service, auxiliary, and parking brakes for both tire-mounted and crawler-mounted drills. Protective guards for moving parts are mandatory, and specific safety factors are defined for wire ropes and chains used in the drilling mechanism. The standard also addresses environmental and health hazards. It requires dust collection systems to maintain air quality and limits harmful exhaust emissions for internal combustion engines used underground. Fire prevention measures, including the use of flame-retardant materials and mandatory fire extinguishers or onboard suppression systems, are also strictly regulated.
Testing methods
Compliance with GB 21009-2007 involves several key testing and verification procedures. Stability must be verified through engineering calculations. Braking system performance for crawler-mounted drills must be tested according to the methods specified in GB/T 19929. Noise levels at the operator's position are measured following GB/T 13325, and vibration testing is conducted per GB/T 8419. Dust concentration around the drill and inside the cabin is measured using the methods outlined in the Metallurgical Enterprise Dust Measurement Method.
FAQs
What products are regulated under GB 21009-2007?
GB 21009-2007 regulates the safety of mine blast-hole drills, including rock drilling jumbos, cable percussion drills, DTH drills, rotary drills, and roller cone drills used in open-pit mines, underground mines, and tunnels.
Are there specific requirements for underground drilling operations?
Yes, for underground use, the standard requires electrical equipment to be explosion-proof, complying with the GB 3836 series. It also mandates exhaust gas purification for internal combustion engines, with strict limits on CO and NOx emissions, and requires automatic onboard fire suppression systems for remote-controlled drills.
What are the key safety requirements for the operator cabin?
The standard specifies that operator cabins must maintain a temperature between 15°C and 31°C, have air purification to keep dust concentration below 2mg/m³, and limit noise to 85dB(A). Vibration at the seat must also be controlled to a weighted RMS acceleration of no more than 1.25 m/s².
The summary above provides a high-level overview of GB 21009-2007. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 21009-2007 today to access all detailed parameters, tables, and testing procedures.
Applicability hints
- Type
- Safety
- CCS
- D92
- ICS
- 73.100.30
- Competent department
- Ministry of Industry and Information Technology
- Technical committee
- Ministry of Industry and Information Technology