"Liming Liming invested 732 million yuan to build a green mine sand and gravel aggregate production line with an annual output of 3 million tons. It adopts a fully enclosed intelligent design, with a resource utilization rate of over 95%, and dust emissions far below the national standard, achieving a win-win situation for economic benefits and ecological protection."

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With the in-depth promotion of ecological civilization construction, the concept of green development has been deeply rooted in the hearts of the people. As an indispensable raw material for infrastructure construction, the production method of sand and gravel aggregates is also facing an urgent need for transformation and upgrading. Liming Liming actively responded to the national call and invested in the construction of a green mine sand and gravel aggregate production line, committed to building a resource-saving, environmentally friendly, efficient and intelligent modern sand and gravel aggregate production base, and established a green development for the industry

Click to consult to understand the construction plan of the sand and gravel aggregate production line

01. Project Overview

The total investment of the customer's building stone mine is 732 million yuan, the mine reserves are 51.2474 million tons, and the annual design capacity of the project is 3 million tons. The main products of the stone mine production line are stone powder, machine-made sand and aggregate products. The project adheres to the concept of "green, environmental protection, intelligent and efficient". From planning and design, equipment selection, production process to environmental protection, all links are strictly carried out in accordance with the green mine construction standards, striving to achieve the organic unity of economic benefits, social benefits and environmental benefits.

Processing materials: limestone

Output: 1000T/H

Finished product particle size: 0-5mm, 5-10mm, 10-20mm, 20-31.5mm

Cooperation model: EPC general contracting

Equipment configuration: 2 F5X vibrating feeders, 2 C6X jaw crushers, 4 CI5X impact crushers, 7 S5X circular vibrating screens, 1 VU300S aggregate optimization system.

02. Green highlights

Resource utilization is maximized:

● Adopting the advanced "two-stage crushing, two-stage screening" process to achieve the "dry squeeze" of ore, the comprehensive utilization rate of resources reaches more than 95%.

● Build closed raw material warehouses and finished product warehouses to effectively reduce material loss and dust pollution.

Comprehensive environmental protection:

● In order to improve energy conservation and consumption reduction and achieve pollution-free production, 26 sets of dust removal equipment were purchased. The production line adopts a fully enclosed design, the dust emission concentration is far lower than the national standard, and the mining slope is also reduced from 75 degrees stipulated by the state to 60 degrees.

● The use of VU aggregate optimization system not only achieves the output of fine machine-made sand, but also achieves zero emission and zero pollution.

● Carry out ecological restoration and greening of the mining area to create a garden-style mine and achieve harmonious coexistence with the surrounding environment.

Intelligent control and high efficiency:

● Intelligent electrical: friendly human-machine interface, one-click operation of the production process, real-time monitoring of the operating status of each host, and autonomous generation of equipment production and operation reports, which can be integrated into the DCS system.

● Establish a digital management platform for mines to achieve real-time monitoring and data analysis of various links such as production, safety, and environmental protection, and improve management efficiency.

Significant benefits:

● The completion and commissioning of the green mine sand and gravel aggregate production line has achieved significant economic, social and environmental benefits.

● Environmental benefits: The project greatly reduces dust emissions every year and makes positive contributions to improving regional environmental quality.

Liming Group: Carry out high-quality green development to the end

The successful practice of the green mine sand and gravel aggregate production line provides a useful reference for the green transformation and development of the sand and gravel aggregate industry. In the future, our company will continue to provide services to more companies, adhere to the design concept of green development, and continue to explore and innovate, and contribute to promoting high-quality development of the industry and building a beautiful China!