Yunnan Lijiang Ancient City Southwest Cement Co., Ltd. pursues three "zero" indicators in its production and operation-zero safety accidents, zero infectious infection rate and zero occupational disease incidence. As a production enterprise with a daily output of 5000 tons of cement clinker , the company has built a new intelligent production line. Reporters learned that, thanks to the update of intelligent equipment, the cement workshop is no longer "dusty", replaced by safe and clean, "equipment see the original color".
It is reported that the company's production line is equipped with six intelligent systems, including intelligent logistics system, intelligent batching system, kiln expert system, quality intelligent control system, energy management intelligent system and intelligent loading system. Tu Yingxiang, general manager of the company, introduced that the installation of intelligent system not only optimized production indicators, but also realized unmanned operation, reducing the contact between workers and various occupational hazards.
Specifically, the driver can operate the mobile phone APP to transport the raw materials in and unload them, and load and transport the cement out; the intelligent batching system can realize the automatic batching of raw materials for cement production; when the raw materials are changed into clinker, the kiln expert system can automatically adjust the feeding ratio; and finally, the bagged cement is automatically loaded by the robot.
Tu Yingxiang said that through the cooperation of this series of intelligent systems, the production index of the factory ranks among the advanced level in the country. "The comprehensive power consumption of clinker is about 47 degrees, and the national standard is 66 degrees (Note: Grade 2 is 57 degrees)."; The standard coal consumption stipulated by the state is 116 kilograms (Note: Grade 2 is 100 kilograms), and we can achieve 95 kilograms.
Thanks to the application of a number of intelligent systems, the factory has achieved clean emissions, and 102 natural discharge outlets are equipped with monitoring systems to monitor some toxic and harmful gases such as particulate matter and nitrogen oxides, so as to achieve the emission of waste gas pollutants up to the standard and certificate, the waste water is not discharged, and the solid waste is disposed of reasonably. For this reason, the
factory has invested heavily in the maintenance of sophisticated equipment. Tu Yingxiang believes that building a green intelligent production line is closely related to improving the occupational health level of workers and promotes each other.
Lean production management "leakage"
, "the dust in the cement plant is cement ash, if not properly handled, not only pollute the environment, but also endanger the lives and health of workers." Tu Yingxiang introduced that in this regard, the factory through lean production management "leakage", recycling cement ash, cleaning up air leakage, water leakage, oil leakage, gas leakage, dust leakage.
"In the past, it was very hard for workers to run with pliers wherever there was dust." Liu Yuhua, deputy manager of the company's safety and environmental protection department, said that most of the workers now do maintenance work, and generally do not enter the confined space. If special circumstances require entry, they must follow the safety regulations, shut down to detect oxygen content, toxic and harmful gases, and so on, to ensure safety before entering.
For cement factories, the biggest safety accident is the burial of people caused by the collapse of materials. Tu Yingxiang introduced that in Lijiang Ancient City Southwest Cement Co., Ltd., there are more than 10000 tons of cement in the warehouse, piled up more than 30 meters high, and the temperature of the cement entering the warehouse is about 100 degrees Celsius. When the cement meets the cold air, it will produce water vapor condensation. In addition, the wall of the warehouse is cold, and the cement bag will stick to the wall of the warehouse. "If you don't pay attention to it, it will fall down, endangering the safety of workers."
"In order to ensure the safety of workers, we use robots instead of manual labor in the warehouse." Liu Yuhua told reporters that in this way, not only can workers avoid contact with the environment, but also through the establishment of a mathematical model, calculate how many tons, yards, rows of packages per vehicle.
In Tu Yingxiang's view, in order to ensure the occupational health of workers and achieve safe production, hidden dangers must be eliminated. "With fewer hidden dangers and fewer problems of leakage, the happiness index of employees will be improved, and enterprises will be able to develop healthily."
Lijiang Ancient City Southwest Cement Co., Ltd. is nearly 20 kilometers away from the urban area. In order to give employees a place to exercise after work, the company has built a health corridor in the factory area, equipped with table tennis tables, billiard tables and some fitness equipment, and organized health activities. To carry out sports
in a cement plant requires a high environment in the plant area. Especially in the cement mill workshop, the powder is ground the finest, and it will leak out if the seal is not good. However, the reporter recently visited the company's production workshop and found that there was almost no dust on the machinery and equipment.
Interviewees told reporters that during the production period, they mainly do patrol work, walk along the prescribed route at the prescribed time, listen to the equipment for abnormal noise, and see if the belt has deviated. In addition, the production workshop has also installed a fully sealed door with a thickened interlayer to isolate noise.
At night, the reporter observed the factory environment through the street lamp, no suspended matter could be seen in the air, and the floor was clean and bright in the office area next to the production workshop. "When packaging cement, suspended solids in the air are often the most, but we require that no more than 10 milligrams of solid particles per cubic meter of air." Liu Yuhua said.
The reporter noticed that the green plants here were thriving and there was no dust on the leaves. "If there is cement dust on the leaves, even if they are washed with water, the cement dust will appear after the water dries.". Here, plants grow naturally. Tu Yingxiang said.
