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Principle analysis of the collapse reduction effect of left-handed anchorsIf the unstable rock layer of the vault is regarded as the combined beam (plate) supported by the side wall, because the anchor hanging on the stable surrounding rock can be regarded as the fulcrum, the installation of left-handed anchor without longitudinal ribs is equivalent to adding the fulcrum, reducing the support span, and then reducing the bending stress and deflection of the support to maintain the stability of the support and the rock, so that the rock is not easy to deform and damage.

What is the anchor beam system of anchor rods?At present, in the production mines of various companies in China, some of the mining depth has reached more than 500-1000 meters, and the ground stress, surrounding rock force and deformation are complicated and diverse, a single anchor support can no longer meet the requirements of support for the broken roof plate, composite roof plate, and the roadway with high roof plate pressure, and the anchor beam system, which is composed of the anchor rods and the W-beam steel belt, can effectively control the roof plate, and it can be used in the support

Ruiyu Company Organized the Seminar Activity of "Contributing to the Company in the Post and in the State"In order to guide the majority of employees to further unify their thinking, cohesion, based on their positions, unity and struggle, and enterprises to actively deal with the current severe situation December 24-26 in the company-wide organization in three batches of "in the post, in the position, in the state, I do for the enterprise to make a contribution to" theme of the seminar, the seminar activities are divided into three parts.

Shandong Ruiyu carries out the work of “Work Safety Law” promotion and implementationIn order to create a strong atmosphere of production safety, Ruiyu Company took the opportunity of studying and implementing the new “Work Safety Law” to actively carry out various forms of safety activities, guide the workers to operate in a formal manner and according to the rules, improve the workers' safety awareness and independent security ability, and ensure the safe production in the fourth quarter.First, the use of pre-shift meetings, safety learning and other forms of centralized study of the new

Factors affecting the quality of anchor tray determinations(1) Environmental temperature change, due to thermal expansion, the balance of the unequal arm and other reasons, will make the balance of the zero point and the equilibrium point of change, the value of the occasional deviation can be up to a number of times the balance of the sensibility. Thus, the balance room should be a constant temperature, first-class, second-class standard balance and first and second-class laboratory balance should be 20 ℃ ± 2 ℃ under the conditions of work, the accuracy of a little lower to reach 20 ℃ ± 5 ℃.

Promote the greening of the manufacturing industryBy 2030, the output value of green factories at all levels will account for more than 40% of the total output value of the manufacturing industry; by 2030, the recycling volume of major renewable resources will reach 510 million tons, and the comprehensive utilization rate of bulk industrial solid wastes will reach 62% ......

Ruiyu Company Organizes Emergency Rescue Knowledge Training In order to protect the safety of employees and pay attention to their health conditions in real time, Ruiyu Company has equipped workshops with special first-aid medicine boxes, blood pressure monitors, patchouli, quick-acting heart pills and other medical and healthcare supplies, and has established a relevant medical apparatus management system and processing procedures to facilitate the temporary rescue of employees in the event of a health emergency.

Shandong Ruiyu Company Watches the Alert Educational Activity of “Clean Practices Cartoon CollectionIn order to further strengthen the party's clean government construction and anti-corruption work, and enhance the ability of party members and cadres to resist corruption and prevent change, Ruiyu Company, on the basis of the implementation of the daily publicity of clean business, actively broaden the publicity carrier of clean business, and carry out the warning education activities of clean business in the form of vivid and lively cartoons.This warning education activities to watch the “

Shandong Ruiyu Company Solidly Carries Out the Activities of Rule of Law Awareness MonthFrom April 1 to 22, Ruiyu Company organized and carried out rule of law publicity and education activities with the theme of “enhancing the concept of rule of law and promoting the rule of law”.Firstly, by posting cartoon version of the Constitution publicity wall charts on the bulletin boards, the company publicized the concept of supremacy of the Constitution and rule of law according to the Constitution in an easy-to-understand way, publicized the basic rights and obligations of citizens, safeguarded the

Shandong Ruiyu Carries Out Road Traffic Safety LectureIn order to improve the staff's self-safety awareness, to prevent road traffic accidents on the way to and from work, to enable employees to master the reasonable disposal methods after traffic accidents, and to minimize the losses, Ruiyu Company, taking the opportunity of learning and implementing the new “Work Safety Law”, invited the Traffic Police Battalion Accident Handling, Insurance Company Claims, Buick 4S Store Vehicle Maintenance and other relevant professionals to the company on Oct.