In the ventilation technology, the research focuses on solving the gas drainage, the setting of the tailgate of the fully mechanized caving face, the design of the roadway section, the ventilation mode of the mining area, and the gas interpretation of the high gas area. In the ventilation facilities, the first is to do a good job in the dynamic management of various windshield wind bridges, to overcome the problems of ventilation, wind leakage, wind current short circuit and other factors affecting the quality of ventilation; second, do a good job of blind lanes, closed walls, wind eyes, etc. Dynamic management, especially the engineering quality of ventilation facilities, to achieve quality standardization, make the ventilation system perfect, reasonable, flexible and reliable, easy to adjust the air volume, control the gas concentration below the safety limit. (2) The second line of defense to strengthen fire management. In addition to the prohibition of fire into the well, it is also necessary to strictly control the generation of underground fire. Preventing mechanical fires, mainly to strengthen the mechanical protection investment and daily management, focus on preventing friction and fire, improve the quality of electrical and mechanical maintenance, strengthen lubrication, overcome the diseased operation; can not ignore the roller, coal protection, slip protection and electromechanical oil-free . Prevent electrical fires. First, various electrical protections such as grounding, overload, short circuit, etc. must be complete, sensitive and reliable. Second, relay setting should be scientific and reasonable to ensure protection under abnormal conditions. Third, strengthen the explosion-proof management of electrical equipment. From the well to the well, the explosion-proof rate of the equipment should reach 100%; all kinds of cables must not have clear joints, chicken catchers, and sheep tails. From the perspective of prevention, underground fire protection systems, fire-fighting materials and fire-fighting facilities It should be standardized and sound. (3) The third line of defense, strengthen monitoring and monitoring management. Through fixed and undetermined points, timed and untimed monitoring means, a visual network is formed on the state of gas, and abnormalities can be discovered in time, and corresponding countermeasures and measures are quickly taken to put the gas in control. Monitoring and monitoring are generally divided into static and dynamic. The static focus is to manage and monitor the safety production monitoring and control, and use the existing scientific and technological means to monitor and control the harmful gases such as air volume, wind speed, gas and CO; use gas power failure alarm, three special two locks, etc. The facility solves the problem of power failure, power failure, and over-limit alarm when the gas exceeds the limit. At the same time, the dispatcher monitors the screen continuously, continuously monitors the gas dynamics, and timely uses the underground communication organization to evacuate people for repair or rescue work. The dynamic focus is on the management and use of optical tile detectors, portable tile detectors and airborne tile detectors. First, the inspection personnel are required to wear according to the regulations, and the second is to inspect and test according to the requirements. Full-time tile inspectors, team leaders, follow-up teams, and down-going leaders must participate in gas inspection. On-site management should not be overlooked. The key is to conduct regular inspections and overhauls of various instruments and probes, including static facilities. , verification work, to ensure its sensitivity, reliability, to avoid misleading and misoperation. Safety monitoring and monitoring also needs further improvement, including the opening and closing status of each damper into monitoring and monitoring management, actively promoting new technologies, new technologies and new products, and relying on advanced monitoring and monitoring to improve the dynamic management of gas. (4) The fourth line of defense, build a team of thought-quality gas. No matter what kind of work, people are the main body, there is no excellent workforce, and it is hard to imagine how to manage gas. The inspection team is not only composed of the ventilation team and the ventilation department. All the leaders and team members related to gas management are listed. The construction of the inspection team should focus on the following aspects: First, a sound institution. We separated the ventilation department from the team and continued to enrich it. The purpose is to improve and strengthen management. We must gradually establish the prestige of the ventilation department and dare to manage it in gas management. The second is to strengthen dedication, safety education and legal education. Improving the safety awareness, legal concept and post responsibility of each employee is a long-term task, and it is the key content of doing a good job in ideological construction. Cultivating the "three old and four strict" style is very necessary for a decentralized ventilation team. The gas accident is a devastating accident. It must be understood that the tile detector in their hands is related to the whole mine. The survival, the life of all the people who are going down, is related to the happiness of the family members of the whole mine. Regardless of whether you are a team leader, a technician, a ventilator or a tile inspector, work must not be ambiguous; the third is to strengthen business technology training. The ventilation team is a young team. It is still immature. In particular, the improvement of the technical quality of the business still requires a lot of effort. Some of the inspectors do not even read the readings. The difference in quality is unbelievable. It also shows that the team training is very poor. Staff training is the foundation of team building. It is a long-term and persistent task. In addition to team training, it also needs to educate coal mine employees on safety knowledge and basic skills. Training to enable self-protection and self-rescue in the event of a disaster to minimize disaster losses. Adhere to the principle of "management, equipment, and training" and strengthen comprehensive management, we must be able to scientifically and effectively prevent and control various types of gas accidents.
Electric water kettle
If you are new to the concept of using an electric
kettle, you might be overwhelmed by the variety of electric
kettles that are displayed on the store shelves and have difficulty deciding which one would be
the best to suit your individual needs or desires. This
introduction will give you some basic
information about some of the features that are available on
various types of electric kettles so that you can make a more informed decision
when choosing one for use in your home.
Features:
Spend few minutes to boil : After 5 minutes, hot water will
finish for you to drink.
3 protection functions : The on/off button is on the handle, making
it easy to turn the kettle off when you pick it up. A concealed heating unit reduces
the amount of buildup in the kettle.
It will be a problem when you forget to
close the button.Once the water boils the kettle shuts itself off.Do not have
to worry about damaging it by letting it run dry. When water runs dry,It will
cut the electric by itself.
Multiple Cups: Water can be loaded to
1.8Liter.
Materials :
Food grade stainless steel, more healthy
and hygienic. PP handle wieh heat insulation material provides scald
resistance. Durable controller performance with 360 degree rotation cordless
base design.
OEM & ODM service : Try
best to support you during production and provide better after-sales
service.Enhance your brand popularity.
Application:
Make a cup of tea.
Boil eggs.
Cook noodles.
Electric Water Kettle,Aluminium Electric Water Kettle,Mini Electric Water Kettle,Stainless Steel Electric Water Kettle Guangzhou Taipeng Electrical Appliances Technology CO., LTD. , https://www.taipengelectric.com
(1) The first line of defense to strengthen ventilation management. The first line of defense is mainly to reduce the amount of gas emission from the mining area by means of ventilation. Changcun Mine is the only pair of high gas mines in the five pairs of production mines of Chun'an Mining Group. Because the main ventilator capacity of the mine is large, the initial mining system is relatively simple. The problem of gas disposal is mainly based on reasonable air distribution. When there is a contradiction between ventilation and dust, dust can be solved by conventional means. Therefore, the principle of ventilation priority should be adhered to; the management of local ventilation should focus on eliminating unplanned power outages and stopping winds, and unplanned power outages should be used as accident management.