Wuhou Ready Mix Plant of China Construction West Southwest Co., Ltd.​​

Wuhou Plant of China Construction Western Construction Southwest Co., Ltd. is the sixth site deployed by China Construction Western Construction Southwest Co., Ltd. in the Chengdu market. It was officially put into production on November 15, 2010, covering an area of about 30 mu (approximately 4.94 acres) with a total investment of 30 million yuan. Acquired through financial leasing, it is located at No. 300, Group 3, Baifo Village, Jitou Town, Wuhou District, 2 kilometers away from Caojin Interchange of the West Third Ring Road, enjoying convenient transportation, superior regional location, and a wide coverage area, which can radiate to regional markets such as Qingyang District, Wuhou District, High-tech Zone, Shuangliu District, Wenjiang District, and Jinniu District. Wuhou Plant is equipped with 1 production line of Type 180 and 2 production lines of Type 120, with an annual production capacity of up to 1 million cubic meters. Currently, it has 59 employees, including 48 managers, 11 workers, and 13 Party members, with complete organizational structures including the Party Branch, Youth League Branch, and Trade Union.

Wuhou Plant has been in operation for 11 years since it was put into production in 2010. During these 11 years, while actively fulfilling the social responsibilities of a large state-owned enterprise, it has also achieved remarkable results in brand building and industry influence. In terms of tax payment, Wuhou Plant has taken the lead, paying approximately 150 million yuan in taxes from 2013 to the end of December 2022, actively assuming and fulfilling social responsibilities. It has successively won honorary titles such as "National Green Demonstration Plant in the Ready-mixed Concrete Industry", Chengdu "Performance-leading Enterprise" Ready-mixed Plant, "Three-star Green Building Materials Evaluation Label Certificate", "Sichuan Provincial Level-II Work Safety Standardization Enterprise", "AAAAA Chengdu Model Harmonious Labor Relations Enterprise", "Chengdu Green Production Compliance Enterprise", "Chengdu Occupational Health Management Demonstration Unit", "Chengdu Youth Civilization", "Wuhou District Youth Civilization", "Wuhou District Major Taxpayer (2012-2021)", "Wuhou District Key Advantageous Enterprise (2013-2020)", "Joint Stock Company Integrity Culture Demonstration Site", "Joint Stock Company Party Building Demonstration Site", and "Joint Stock Company Advanced Collective".

In terms of social influence, as a pillar plant of China Construction Western Construction Southwest Co., Ltd., Wuhou Plant has undertaken a large number of municipal engineering projects, including Metro Line 2, Metro Line 17, Metro Line 9, Metro Line 13, Metro Line 30, and reconstruction of the Second Ring Road and Third Ring Road. In addition, it has undertaken a large number of urban landmark buildings, such as Chengdu People's Theatre, Chengdu City Concert Hall, Raffles City, and Daci Temple, which are key projects with high social attention and influence, making outstanding contributions to building a beautiful, modern, and charming Chengdu.

II. Green Production

In response to the national environmental protection call, Wuhou Plant has actively taken corresponding measures in noise, dust, sewage, waste residue, and clean production, striving to build a "green production" demonstration plant.

1. Obtained a pollutant discharge license. In May 2016, Wuhou Plant submitted the environmental impact assessment (EIA) filing registration form to the Wuhou District Environmental Protection Bureau to apply for EIA filing, and successfully obtained the temporary pollutant discharge license in April 2017.

2. Sand, gravel, and slurry water treatment measures. Wuhou Plant plans to design a rainwater and sewage separation system, adopt rainwater collection and recycling technology, scientifically arrange the sewage treatment area, and equip with a fully automatic sand and gravel separator to realize the cleaning, separation, and recycling of sand and gravel from residual concrete. It adopts a four-pool fully enclosed slurry water recycling system, integrates the slurry water of the entire plant into the circulation system through the in-plant slurry water collection pipe network, uses a *** model filter press to block the dry residue in the filter chamber to form filter cakes, produces derivative products for secondary utilization, and recycles the clear water filtered out through three-stage sedimentation to achieve zero discharge of waste residue and wastewater.

3. Dust control management. Pulse dust collectors are installed on the main machines and silo tops of the three production lines, and the dusty gas generated during production is filtered by the dust collector before emission to reduce the dust in the emitted gas. At the same time, fog cannons and additional silo spray systems are installed in the plant area to further eliminate dust from raw material stacking and use. In addition, a row of green plants is added under the plant's basketball court and office building to ensure that the greening rate of the unpaved open space in the plant area reaches over 80%.

4. Noise control management. To reduce noise transmission, Wuhou Plant encapsulates each production line to block the noise transmission route, effectively reducing noise by more than 50%. At the same time, it replaces air compressors and in-station gas path equipment with screw air compressors to effectively reduce the noise generated by air compressors. In addition, centralized gas supply is adopted in the station, and powder transport vehicles are prohibited from using their own air compressors, effectively reducing noise generation in the station.

5. Clean production management. An automatic sprinkler device for tank trucks is installed at the plant gate. When the tank truck reaches the sprinkler device, the flushing valve is opened through a sensor to ensure that all outgoing tank trucks are flushed. The sewage from flushing tank trucks is subjected to graded sedimentation in sedimentation tanks, and after sedimentation, water is supplied to the tank truck sprinkler device through a water pump to achieve energy conservation, emission reduction, and recycling. At the same time, to solve the problem of "dripping, spilling, and leaking" during concrete transportation, anti-leakage devices are installed at the funnels of each mixer truck to avoid pollution to municipal roads.

6. New energy mixer trucks put into use. The first batch of 30 new energy mixer trucks introduced were put into operation on July 14. These vehicles are pure electric mixer trucks with both charging and battery swapping functions, with four characteristics of "electrification, lightweight, networking, and intelligence" and four advantages of "safety, ***, green, and civilization". Based on the calculation of 1 mixer truck operating 50,000 kilometers per year, it is equivalent to reducing carbon dioxide emissions by approximately 39.5 million liters per vehicle per year, complying with national policy requirements and taking a solid step forward on the road of energy conservation and emission reduction.

III. Intelligent Development

Following the national "Made in China 2025" and "Internet+" development strategies and combining the actual situation of the plant, Wuhou Plant has clarified the construction direction and goals of industrial intelligent pilot projects, constructed around the "six main lines" of refined management, and is committed to building a *** intelligent factory in the concrete industry based on the principle of "focused promotion and breaking through one by one".

1. Intelligent production control system. First, the integrated production scheduling platform centralizes production scheduling, machine operation, technology, and customer service, improving production scheduling efficiency and abnormal situation handling capacity, and effectively enhancing production organization and contract performance and supply guarantee capabilities. Second, the industrial control system records each operation in the production process, automatically summarizes the production process sequence diagram, effectively supports quality reverse traceability, and at the same time, the system is integrated with the real-time communication platform, which can immediately alert managers when quality or operational risks occur, realizing process quality risk prevention and control.

2. Intelligent integrated quality management. First, it has realized one-code traceability of the concrete quality life cycle, monitoring each process one by one, including raw material inspection, trial mixing records, mix ratio generation, and concrete delivery, so that product quality can be reversely traced. Second, it has applied big data technology to optimize intelligent algorithms, dynamically optimizing the production mix ratio through analysis and prediction of historical strength information, and the concrete strength fluctuation range can be controlled within 2MPa. Third, the system ensures standardized quality management, establishes a mobile quality monitoring platform, and pushes raw material quality fluctuations and concrete bulk density deviations in real-time.

3. Intelligent material warehousing system. By adopting intelligent equipment such as bin position managers, level gauges, and admixture sensors, it has solved problems such as difficulty in online monitoring and management of powder silos and admixture tanks. At the same time, it has realized the synchronous operation of three tasks: material weighing, inspection commission, and automatic key ejection, ensuring the compliance of raw material acceptance and effectively reducing the risk of wrong silo charging and silo explosion caused by human operation.

4. Established marketing management system. Made full use of the system's early warning function to automatically calculate quantity differences and timely send information to remind relevant personnel to pay attention, effectively avoiding settlement risks. In the current stage of promotion, we will also add customer performance control to realize real-time control of concrete release and reduce commercial risks.

Wuhou Plant will continuously improve management, enhance production capacity, and is committed to pursuing "*** benefits", "*** management", "*** safety", "*** team", and "*** atmosphere", to make new contributions to *** realizing the grand blueprint of "Southwest Benchmark".