The resource utilization of construction and demolition (C&D) waste is first to pretreat the construction waste to meet the requirements of recycling. A large amount of construction waste is pretreated mainly by mechanical sorting, supplemented by manual sorting. The pretreated construction waste can be directly recycled, or can be further processed and utilized as required.

The further process of construction waste is mainly finished by professional equipment, such as crushing and screening equipment.

At present, the widely used construction treatment process is as follows: raw material loading → primary crushing → manual sorting of impurities → automatic sorting of impurities → secondary crushing → screening and removal of impurities → finished aggregate.

After the recycling treatment of construction waste is completed, the amount of waste is reduced, and the harm of construction waste is eliminated to achieve harmless treatment.

On site crushing and sorting of construction waste

It refers to the use of demolished old construction waste and newly built construction waste generated in the process of urban and rural construction to realize on-site screening and crushing through relevant technology, so as to provide raw materials for on-site construction. On the one hand, it reduces the space for stacking garbage and the funds for garbage removal; on the other hand, it reduces the purchase of new materials, and further reduces the project cost.

At present, there are different forms of sand making in the field of machine-made sand, such as fixed sand making machines, mobile sand making machines, and VU system sand making machines.

All sand-making methods of Liming Heavy Industry adopt dry sand-making process. No water is used in the sand-making process, and it will not affect sand-making production in the water shortage environment.

Among them, the mobile sand making machine is a new type of sand making equipment developed on the basis of a fixed sand making machine. The main machine configuration is still impact crusher, but the sand making machine and vibrating screen are fixed on the vehicle-mounted system, and the whole body can move freely, no fixed installation, easy to change the production site at any time.

The host of the mobile sand making machine is the impact crusher. At present, Liming Heavy Industry produces VSI, VSI5X, and VSI6X series, which have a wide application foundation and good reputation in the field of machine-made sand. Later, mobile sand making machines and VU system sand making will be launched. It is also based on the good effect of impact crusher and sand making.

Different forms of sand making require different equipment, and their prices are very different. Therefore, the price of 80T/hour large-scale mobile dry sand making machine depends on the specific equipment configuration. You can leave detailed needs such as raw materials, capacity, feed size, output size to online customer service, and we will arrange technicians to make selection plans and quotation budgets for reference.

Gold occurs principally as a native metal, usually alloyed to a greater or lesser extent with silver, or sometimes with mercury. Native gold occur as sizeable nuggets, as fine grains or flakes in alluvial deposits, or as grains or microscopic particles embedded in other rocks.

Process flow：

1. Trucks transport the ore from open pits or underground operations to processing operations.

2. Determine the geochemical makeup of the ore, including its hardness, sulfur content, carbon content and other minerals found within, impact the cost and methods used to extract gold.

3. Sent gold ore into a series of crushers (jaw crusher, HPT hydraulic cone crusher, etc.) and grinding mills (MTW European version trapezium mill, vertical mill, ball mill, etc.) to reduce the size of the ore particles and expose the mineral.

4. Re-election is widely used in the rock gold mine, as an auxiliary craft, in the grinding process to recover coarse gold, and create favorable conditions to flotation and cyanidation processes, which can improve the beneficiation indicators, improve recovery rate of gold, re-election plays a positive role for increasing production and reduce cost.

5. Flotation process or a weak cyanide solution to the slurry, this process removes up to 93 percent of the gold and 70 percent of the silver from the ore. And then the gold is pulled from the solution and attaches to the carbon. We then "strip" the gold from the carbon by washing it with a caustic cyanide solution. The carbon is later recycled.

6. Next, we pump the gold-bearing solution through electro-winning cells, which extract metals from the solution using an electrical current.

7. Smelt the gold, which melts it in a furnace at about 2,100°F. From there, the liquid gold is poured into molds.

8. We finally send the bars to a refinery for further processing into pure gold.

Applications：

Gold has been widely used throughout the world as money, for efficient indirect exchange (versus barter), and to store wealth in hoards. For exchange purposes, mints produce standardized gold bullion coins, bars and other units of fixed weight and purity.

BATIMATEC 2024, is Algeria's premier international exhibition for construction, building materials, and public works. It serves as a comprehensive platform for industry professionals and companies to showcase the latest innovations, technologies, and solutions in construction and building materials. Liming Heavy Industry will also participate in this exhibition, showcasingour advanced mining equipment manufacturing technology.

Title: BATIMATEC 2024 (26th International Exhibition of Building, Construction Materials and Public Works)

Date: 05-09 May 2024

Booth No.: N 41

Venue: Pins Maritimes Exhibition Center-Algiers

Contact: Emma

Tel:

MINING VIETNAM 2024 is the international mining exhibition in Vietnam, bringing together leading companies and professionals from around the globe in the mining industry. It provides an excellent platform to explore the latest technologies, products, and services. The exhibition showcases cutting-edge mining equipment, technologies, and solutions, fostering international cooperation and business development. LIMING HEAVY INDUSTRY will be attending MINING VIETNAM again this year in April. If you are attending, I’d love for you to stop by.Find us at:

Title: MINING VIETNAM 2024

Date: 24-26 April, 2024

Booth No.: B13

Venue: National Exhibition Construction Centre (NECC)

Contact: Ivy Qin Matty Zhou

Tel:

MiningWorld Russia is the an internationally-recognised trade show servicing the mining & mineral extraction industry. As a business platform, the exhibition connects equipment and technology manufacturers with buyers from Russian mining companies, mineral processors, and wholesalers interested in buying the latest mining solutions.

Liming will attend MiningWorld Russia 2024 with our stone crusher,grinding mill and latest products.Welcome to our booth to know more details!
 

Title: MiningWorld Russia 2024

Date: 23—25 April, 2024

Booth No.: C1009

Venue: Crocus Expo IEC, pavilion 1,hall 3, Moscow

Contact: Mr.Liu

Tel: 0086-371-86162511