Recently, the Emergency Management Bureau of Hailar District, Hulunbuir City, Inner Mongolia, issued a document on the existence of a number of potential safety hazards in Hailar Mengxi Cement Co., Ltd.
Hidden danger 1: there is no emergency stop rope on one side of the 127m belt in the raw material workshop of the company. It does not comply with Article 4.1.11 of the Safety Code for Belt Conveyors (GB14784-2013), which stipulates that the conveyor (or conveyor line) shall (should) be equipped with safety protection devices. I) Emergency stop pull switches shall be provided along the full length of the conveyor walkway. The spacing between pull cord switches shall not be greater than 60m. When the length of the conveyor is less than 30 m, it is allowed to use the emergency stop button instead of the pull rope switch, but the distance from any point in the length direction of the conveyor to the emergency stop button shall not be more than 10 m. Problem hidden danger 2 before
rectification: no safety warning sign is set for the manhole of high-temperature fan at the kiln inlet of the company's clinker workshop. It does not comply with the provisions of Article 11 of the Safety Regulations for Industrial and Trade Enterprises Operating in Confined Space (Order No.13): Industrial and trade enterprises shall set up obvious safety warning signs at conspicuous locations such as entrances and exits of confined space, and set up safety risk notification boards in places where conditions permit. Problem and hidden danger 3 before
rectification: the maintenance springboard of the company's waste heat power generation workshop is not fully paved and bound. It does not comply with the provisions of Article 4.4.4 of the General Code for Construction Scaffolds (GB 55023-2022): safety protection measures shall be taken for the scaffold operation layer, and the following provisions shall be met: 1. The scaffold operation layer of the operation scaffold, the full support scaffold and the attached lifting scaffold shall be fully paved with scaffold boards, and shall meet the requirements of stability and reliability. When the distance between the edge of the working layer and the outer surface of the structure is more than 150mm, protective measures shall be taken. 2.The steel scaffold board connected by hook shall be equipped with self-locking device and locked with the horizontal rod of the working layer. 3. Wooden scaffold board, bamboo string scaffold board and bamboo scaffold board shall be supported by reliable horizontal rods and shall be bound firmly. Problem hidden danger 4 before
rectification: the cable bridge of the raw material low-voltage distribution room of the company is not provided with fire blocking at the wall. It does not comply with the provisions of Article 7.1.5 of the Code for Design of Low Voltage Electrical Installations (GB50054-2011): the fire blocking of cable laying shall comply with the following provisions: 1. When the wiring system passes through the floor, wall, roof, ceiling, partition and other building components, its pores shall be blocked according to the provisions of the same fire resistance rating of building components. Problem hidden danger 5 before
rectification: the valve port of a pipeline in the ammonia room of the company is not blocked. It does not comply with Article 14.4.1 of Code for Design of Industrial Metal Piping (GB50316-2000): when the plant is shut down for maintenance, the pipeline outside the plant may or is required to continue to operate, in addition to the cut-off valve at the boundary of the plant, the blind plate shall also be set at the flange on the side of the valve close to the plant.
Problem 6: The pressure relief port of the dry bag-type dust collector in the pulverized coal preparation workshop and the dust collector on the top of the pulverized coal bunker are not set in the dust chamber. It does not comply with Article 4.2.1.7 of Code for Pressure Relief of Dust Explosion (GB15605-2024): the pressure relief port of bag filter shall be set in the dust chamber. Problem and hidden danger before
rectification 7: The cooling water pipe network is laid above the power distribution cabinet in the power distribution room at the kiln tail of the company's rotary kiln. It does not comply with the provisions of Article 4.1.3 of Code for Design of Low Voltage Power Distribution (GB50054-2011): except for the pipes required in the power distribution room. No other pipes shall pass through. Valves and intermediate joints shall not be set on indoor water and steam pipes; the connection between water and steam pipes and radiators shall be welded and equipotential bonding shall be made. Before
rectification
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