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Equipment for Screening Sand from Shield Tunnel Excavation Waste

Recently, the Qingdao Metro's environmental protection system has been successfully put into operation, with the continuous separation of crushed stone and sand aggregate from shield tunnel excavation waste. The entire project, from design to implementation, was undertaken by LZZG Heavy Machinery as the EPC general contractor. The system mainly consists of modules for coarse particle separation, mud-sand separation, mud-water separation, tailwater treatment, and recycling. It is equipped with the company's independently developed intelligent management system, enabling on-site separation of sand and gravel from excavation waste, on-site dewatering and drying of slurry, and treatment of tailwater for project recycling. LZZG also manufactures sand washing machines for small and medium-sized construction projects.

River Water Cyclone Desander

A cyclone desander is a sand removal device that combines cyclone flow and filtration. It is primarily used to remove solid particles and sediment from groundwater, including groundwater and other water sources. It is suitable for water-source heat pump systems, central air conditioning circulating cooling water, chilled water systems, winter heating and cooling circulating water systems, and industrial cooling circulating water systems. It is widely used in many industries, including the chemical, environmental protection, and food industries, achieving remarkable results in water treatment, including sand removal, turbidity reduction, solid-liquid separation, and sediment separation. Cyclone Desander Concept: A cyclone desander, also known as a cyclone desander or desander, is a device that uses the principle of screening solid particles in the medium as they rotate within the desander. Combining cyclone flow and filtration, it achieves remarkable results in water treatment, in...

Which filter press is most efficient?

Vertical filter presses have a wide range of applications and a relatively simple structure. The pressing and pulling of the plates and frame, as well as the unloading and cleaning of the filter cloth, can all be automated, facilitating the expansion of filter presses into larger sizes. Plate and frame filter presses offer a simple structure and powerful functionality, meeting virtually all requirements. Belt filter presses continuously discharge the filtered residue through the filter cloth belt, ensuring continuous operation and high filtration efficiency. However, they are expensive and bulky. The filtered residue has a high moisture content, typically only around 45%. Chamber filter presses have an optimized structure, are reliable and durable, withstand high pressures, are highly automated, and are easy to operate. They also offer low operating costs. They utilize high-pressure, rapid pressing technology, shortening production cycles. Generally, no chemicals are required for mud,...

Heavy duty rock trommel screen working principle

The ore drum screen is generally composed of a drum, a frame, a funnel, a reducer and an electric motor. In addition, different placement schemes can be designed for the equipment based on the production needs of the customer. When the mining drum screen is working, the crushed ore enters the drum from the feeding end. On the one hand, it will be affected by the centrifugal force generated by the rotation of the drum, and on the other hand, it will be affected by the jigging effect. The ore with a relatively large particle size will flow forward along the inclination of the drum. The ore with a suitable particle size will be screened out in turn according to the specifications when passing through the screen and fall into their respective funnels, and finally sent to the finished product pile by the belt conveyor.

Coal slime and tailings drum dryer supplier

Coal slime dryer is a drying equipment with mature technology and effective reduction of coal slime moisture content. It is suitable for drying coal slime, raw coal, flotation clean coal, mixed clean coal, various metal concentrates, waste slag, tailings and other materials in the coal industry, and has strong applicability to various high-humidity and sticky materials. The daily output of a single coal slime dryer production line can reach more than 100 tons. Zhenneng Energy equips the coal slime dryer with multi-stage dust removal equipment, which can effectively solve the problem of waste gas treatment and meet local environmental protection standards. The dried coal slime can be combined with the company and the surrounding conditions, and cooperate with power plants, brick factories, cement plants, incineration plants, etc. to achieve comprehensive disposal and utilization of coal slime (such as domestic fuel, power plant fuel, brick factory additives, cement additives, etc.

Bauxite iron removal equipment

Detailed explanation of iron removal methods in bauxite 1. Physical method The physical method is to remove iron from bauxite by using the difference in physical properties. Common physical methods include gravity separation, magnetic separation and flotation. 1. Gravity separation: Utilize the difference in density of different minerals to carry out mineral separation through equipment such as shaking tables and chutes. The density of iron minerals in bauxite is relatively large, and some iron minerals can be removed by gravity separation. 2. Magnetic separation: Utilize the strong magnetic characteristics of iron minerals, and magnetic separation can effectively remove iron minerals. Magnetite is common in bauxite, and magnetic separation can be used to separate them from bauxite. 3. Flotation: Utilize the difference in surface properties of different minerals, adjust the surface properties through flotation agents, and separate bauxite from iron minerals. In the flotation process, ...