Chenzhou Mining actively follows up and adapts to the new situation and new requirements of national safe production, does not evade, does not shirk, adheres to the red line consciousness, the bottom line thinking, raises safety production to a politically conscious level, and continues to open the "last 100 meters" of safe production. ".
Combining with the actual situation of each mine, Chenzhou Mining has formulated eight types of safety accident prevention measures from the aspects of improving system, strengthening management, technological innovation, equipment configuration and standard operation, and prepared prevention, easy to understand, easy to learn and easy to remember.
Prevention of roof collapse accidents For the collapse of roof collapse, Chenzhou Mining has perfected the filling system to ensure the mining, to charge the security, to quickly pick up the charge, to balance the mining and filling, to ensure the stability of the ground pressure, to maintain the balance of the new goaf; Support measures, full implementation of anchor or spray anchor, anchor net or spray anchor net support, avoid construction under unsupported space; strict design and construction, to prevent no design or design mistakes; require operators to "eyes up", Knocking on the top of the question and combining with changes in the pressure of the ground pressure.
The Vxi thick ore body under the Chenzhou Mining Industry takes the V3-1 thick ore body as the key point of prevention and control, and combines the anchor net support and the cemented filling to promote the use of the point-column mining method to mine the thick ore body; the fisher mountain pit is adopted lift building support for gold mining field in just mud roof control; poor Hongjiang Chen states, Xupu Chenzhou mining geological conditions, from the previous Shrinkage method to change the level of layering method and approach on mining law; Chenzhou The mining industry invested about 20 million yuan to build a tailings filling system for Xiang'an Tungsten Industry, and solved the hidden dangers by fast mining and quick charging; Anhua slag shale controlled the rock burst problem by stress releasing holes and spray softening rock layers; Chenzhou, Gansu, Gansu Xin takes the top guard and the anchor net support controls the top to help.
Prevention of poisoning suffocation accidents For the poisoning suffocation accident, Chenzhou Mining has continuously improved the ventilation system to prevent it.
The mining depth of Woxi Hangkou is up to several kilometers. The original system has long ventilation lines, large wind resistance and insufficient air exhaust capacity. Chenzhou Mining invested 230 million yuan to build a two-kilometre shaft to form a new ventilation system, while strengthening the management of the main and auxiliary fans. All mines within the company use mechanized ventilation and strict ventilation system operation management. Through the renovation of the old man, the Woxi Hangkou uses the old roadway to form a ventilation circuit, and the single-heading operation site is also equipped with local ventilation facilities.
In addition, each operating point is equipped with a gas detector and a breathing self-rescuer.
Explosion accident prevention For explosive accidents, Chenzhou Mining regulates the use of blasting equipment , retreat, transportation, storage management; improve the blasting process, research and use the detonating tube detonator to initiate the explosion process, replace the past fire detonator detonation method; establish an explosion The item is confirmed on duty, and the blasting safety confirmation before entering the class is carried out; the blasting warning and clearing management are strengthened; the strict certificate-based employment system is required, and the operators must be certified to work after the training, and encourage the shift supervisor, section leader, engineering and technical personnel to participate. The training obtained a blasting certificate.
In the past three years, Chenzhou Mining has completed the registration of 240 new personnel for the "three members" and 638 person renewals. Among them, 14 explosion-related engineering and technical personnel, 138 duty supervisors and 78 district management personnel were certified.
Water leakage accident prevention For water leakage accidents, Chenzhou Mining has identified hidden dangers of water damage and mapped hydrogeological maps; improved drainage system and automated drainage system.
For the prevention of key areas, Chenzhou Mining adheres to the principles of “predicting, forecasting, exploring, digging, and treating firstâ€, as well as five comprehensive measures of prevention, blocking, sparse, arranging and interception. At the same time, strengthen emergency support, improve the emergency rescue plan for water-permeable accidents, build emergency shelters, equip drainage equipment, conduct trial-running exercises for self-provided power supplies in the form of emergency drills, and improve the emergency response capability of operators.
Fire accident prevention For fire accidents, Chenzhou Mining eliminates the phenomenon of “small horse-drawn cartsâ€, strictly approves the approval of “fire work permitâ€, regulates the fixed management of oil materials and flammable sundries, and prohibits underground smoking and baking. Standardize the installation of wires, cables and switches.
In 2012, Chenzhou Mining successfully hosted the “Safe Production Activity Month†launching ceremony in Hunan Province and the mine-wide underground emergency rescue drills. It sorted out the prevention and rescue measures for underground fire accidents and set up a model for similar accident rescue in Hunan Province. Also accumulated experience.
Falling tank accident prevention For the accident of the tank sports car, Chenzhou Mining ensures that the equipment meets the safety requirements, strictly operates according to the design specifications, prohibits overcrowding, overloading, and overspeed, and strictly enforces the principle of “no driving, no pedestriansâ€. At the same time, the company strengthens equipment inspection, inspection and maintenance, and conducts daily inspection, weekly inspection and monthly inspection. It hires qualified institutions to carry out regular inspections on the main lifting equipment, strengthens the safety confirmation management before the shift, and strictly guards the operation of the equipment.
Chenzhou Mining hoisted the important parts public signboard and inclined shaft lifting notice board at the wellhead, and made important reminders on important connecting parts and lifting amount, and vigorously promoted the anti-“flying†voice alarm device and the “monkey car†and other overhead passenger devices. Reduce security risks.
Tailings reservoir dam accident prevention For the tailings reservoir dam accident, the new site of Chenzhou Mining tailings scientific selection, rational design, strictly in accordance with the design of the construction of the tailings reservoir "new, modified, expanded" project, adhere to the "three simultaneous "System to ensure construction quality; strengthen inspection of tailings ponds, strengthen flood season inspection, equip flood control materials, install online monitoring system, implement online monitoring of tailings reservoir safety; improve emergency management level, organize emergency units every year Rescue drill activities to focus on improving emergency response capabilities.
For many years, the tailings reservoirs of the mines affiliated to Chenzhou Mining have performed well. The No. 3 and No. 4 tailings reservoirs of this headquarters have been safely operated for more than 10,000 days.
Prevention of slope collapse accidents For the collapse of the slope sports car, Chenzhou Mining strengthened monitoring and monitoring, established a slope monitoring system, and regularly observed the surface and internal displacement of the slope, groundwater level dynamics, blasting vibration, etc.; Regularly hire qualified intermediaries for testing and stability analysis; standardize the management of waste rock farms, strictly control access, prohibit personnel from picking oreing and planting vegetables around waste quarries, prohibit dumping of waste, standardize waste rock storage; reduce personnel Walking, it is forbidden for people to step into the collapse zone at will; strengthen the management during the flood season, and arrange a 24-hour on-duty inspection for the rainstorm season.
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