Skip to main content

Safety technical measures for installation of coal mine drum screen

A. Preparations before construction: The materials and accessories required for construction are fully prepared (three types of I-beam, channel steel, steel plate, electric welding machine, wire, bar, chain, 2 pulleys, 4 inch steel pipe, 3 inch steel pipe, 2 sets of oxygen acetylene, sand, cement, red brick, air duct, wind raft 2, etc.). The lifting beam is made to ensure that the lifting trommel screen is firm and reliable. Before construction, the construction supervisor will lead all construction personnel to learn the measures. The construction personnel must arrive at the construction site 30 minutes in advance to familiarize themselves with the operation of the on-site equipment. The person in charge of the construction shall have a clear grasp of all the lines, equipment and materials on site. The person in charge of construction assigns the tasks of the construction personnel on site and makes the construction personnel clear their respective tasks.

the trommel screen machine


B. Precautions during construction: The construction person in charge reports the start and end of the construction of the dispatching room. During the construction, the construction personnel must concentrate on the work, strictly abide by the three non-injury principle and other various operating procedures, and operate according to the regulations. All construction personnel must wear necessary protective equipment such as helmets and gloves. First establish reliable personnel and equipment protection facilities on site to ensure the safety of personnel and equipment. Clean up the construction site and clean the ground to a hard ground (cement floor). Demolition of the original wall at the fastest speed, optional wind, forklift and so on. When removing the old drum screen and sand coal belt: cut off the power supply; cut off the ground; remove the motor, reducer and front and rear rollers; remove the belt and trommel screen; transport to a place where safety does not affect production. When lifting the drum screen: choose a firm lifting point and a fixed point. When lifting and transporting objects, always pay attention to check whether there is any abnormality in the surrounding environment, and it is forbidden to work in unsafe conditions. Participants should concentrate on avoiding standing in the unsafe places such as under heavy objects or in front of heavy objects, and can only stand on the side. During the operation, follow the unified command of the responsible person and cooperate with each other to cut, weld and assemble according to the size of the site (note the material saving).

When transferring objects at high places, it is strictly forbidden to throw them up and down. When moving long objects such as ladders and materials in the relocation area, they should be transported by two people. The on-site monitoring should be strengthened and a sufficient safety distance should be maintained with the live parts. When installing the trommel screen, repeat the inspection of the pulley (sensitive and reliable) and the lifting point (firm). Check the robustness of the lifting beam used and the plausibility of its position. Safety inspections should be carried out on the hoisting tackle used to ensure good performance, safety and reliability. Chains are used as slings, and chains and screws must be firmly connected. When installing, the screws should be even and diagonally aligned. Welding is strictly carried out according to the welding process. The wall should meet the requirements. For the joint surface of the equipment and the parts that are easily damaged, be careful not to damage it during disassembly and installation. After dismantling the welder and protective equipment, test run. During the trial operation, it must be jointly accepted by the construction person in charge, the technical person in charge, and the mine leader. After acceptance, it will be delivered to the user for use (with written report). When dismantling, relocation, and installation, pay attention to the protection of oxygen meters, acetylene tables and other facilities. It is necessary to carry out civilized construction, and it is strictly forbidden to dry and die hard.




C. Precautions after the completion of construction 1. The construction person in charge reports the construction end of the relevant mine leadership and dispatching room and resumes normal production. 2. Clean up the construction site and fill in the records. 3. The construction manager will finally check the site. Eliminate lost materials. 4. If there is any violation of the above provisions, the safety supervision department shall impose penalties according to the punishment regulations. For other unfinished matters, please refer to the relevant provisions of the "Safety Regulations for Coal Mines".

Comments

Popular posts from this blog

River Water Cyclone Desander

 A cyclone desander is a sand removal device that combines cyclone flow and filtration. It is primarily used to remove solid particles and sediment from groundwater, including groundwater and other water sources. It is suitable for water-source heat pump systems, central air conditioning circulating cooling water, chilled water systems, winter heating and cooling circulating water systems, and industrial cooling circulating water systems. It is widely used in many industries, including the chemical, environmental protection, and food industries, achieving remarkable results in water treatment, including sand removal, turbidity reduction, solid-liquid separation, and sediment separation. Cyclone Desander Concept: A cyclone desander, also known as a cyclone desander or desander, is a device that uses the principle of screening solid particles in the medium as they rotate within the desander. Combining cyclone flow and filtration, it achieves remarkable results in water treatment, in...

Water-Saving Sand Washing Plant

Choosing water-saving equipment and integrating recycling functions is the key to fundamentally reducing water consumption. Select advanced sand washing equipment Bucket-type sand washing machine: The structure is simple, with almost no wearables except for the screen, and the failure rate is low. It adopts a circulating water cleaning method and is one of the relatively more water-efficient mainstream choices currently. Integrated sand washing equipment: This type of equipment integrates sand washing, fine sand recycling, dehydration, and even wastewater treatment functions into one, significantly simplifying the process flow. For example, some new equipment uses built-in bubble flushing technology to improve the flushing effect and avoid secondary cleaning waste caused by incomplete cleaning. Mandatory water recycling system Modern sand washing equipment usually comes with a water recycling system, which can collect, filter, and reuse water during the cleaning cycle. This approach ca...

The difference between quartz and mica

Mica and quartz are common minerals that play an important role in mineralogy. Although they are both silicate minerals, there are clear differences between them. First, mica and quartz are very different in appearance. One of its distinguishing features is that mica exhibits a layered structure that can be easily peeled off into thin flakes. Quartz, on the other hand, is a uniform crystal with no layered structure. Additionally, mica is usually dark in color, such as black, brown, or green, while quartz is usually clear or white. Secondly, mica and quartz also differ in their physical and chemical properties. The hardness of mica is usually between 2.5 and 4, which is relatively easy to be scratched; while the hardness of quartz is very high, 7, which is a very hard mineral. In addition, mica has good refractive properties and electrical properties, while quartz is an excellent piezoelectric material.