Shandong Tianmai Chemical Co., Ltd. was established in August 2003, mainly engaged in the production and operation of bisphenol-A epoxy resin and epoxy resin intermediate (polyester resin). The polyester resin first meets the internal bisphenol-A ring of the enterprise. Oxygen resin production needs, the excess part is exported. Epoxy resin is the main material for the production of powder coatings, but due to the high cost of epoxy resin, poor dispersion performance and poor mechanical properties due to the production process and raw materials of epoxy resin, the company has cooperated with Qingdao Institute of Chemical Technology to research some intermediate parts. The performance of the epoxy resin can be improved and the cost can be reduced by adding the body to the epoxy resin, which increases the competitive advantage of the product.

According to the notice of the Linzi Branch of the Zibo Ecological Environment Bureau on the "Notice on Issuing the List of Key Enterprises Implementing Mandatory Cleaner Production Audit in 2019" (January 30, 2019), and according to the "Notice on Issuing the Key Enterprises for Implementing Mandatory Cleaner Production Audit in 2019" (January 30, 2019) Notice of the List of Enterprises” (Zihuan Letter [2019] No. 23), the company is a dual-owned enterprise, so it is a key enterprise for cleaner production audits, and in March 2019, cleaner production audits were carried out.

In the process of carrying out cleaner production work, the publicity and education of cleaner production audit knowledge was carried out for the internal leaders and employees of the enterprise. Through extensive publicity and education, the enterprise leadership and employees had a comprehensive understanding of the cleaner production audit work, and a cleaner production audit team was established. , fully responsible for the company's clean production audit work. During the audit process, the company's leaders paid attention to, supported by experts, and the audit team devoted themselves to the detailed analysis of the production workshop and all units in the workshop, found out the links that did not meet the requirements of clean production, and determined the key carboxylates for this audit. Dispersant (industrialization workshop), and conducted actual measurement on the material flow of key audit workshops, drawn the material balance chart and water balance chart of the audit key points, and organized the implementation of cleaner production plans in a timely manner.

A total of 10 cleaner production plans have been implemented in this round of cleaner production audits, including 8 no/low cost plans and 2 medium/high cost plans. The total investment is 833,000 yuan, the indicators of the implementation plan all meet the design requirements, and a total of 273,800 yuan of economic benefits are generated per year.

The environmental benefits of the scheme are: saving electricity by 13,500 kwh/a, saving steam consumption by 336t/a, saving materials by 8.67t/a, reducing VOCs emissions by 0.04t/a, reducing nitrogen oxide emissions by 0.94/a, and reducing unorganized plant boundaries The emission of particulate matter is 0.45t/a. The implementation of the plan has achieved good economic and environmental benefits.

As of the end of this round of cleaner production audits, the plan has been fully implemented, with obvious environmental and economic benefits, and the established goals of this round of cleaner production audits have been successfully completed.

Cleaner production audit not only reduces production consumption, protects the environment, improves work efficiency, but also improves the company's management level, injecting new vitality into the company's sustainable and healthy development. In the future development, the company will implement the idea of ​​clean production into the development plan, integrate the concept of clean production in the improvement of the process and the expansion of production, select advanced clean production technology, adopt reasonable production technology, and choose clean production. Produce raw materials, produce clean products.