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Build a sedimentation tank at the construction site, first discharge the sewage into the sedimentation tank, remove suspended matter and oil substances and neutralize them, and then discharge them into the river after testing to meet the discharge standards. During the drilling and pouring process, a screen is used to separate small gravel, sand and other solid particles in the mud, and the mud is discharged to the first sedimentation tank, the second sedimentation tank, and the third sedimentation tank for full sedimentation. During the construction process, the first sedimentation tank, the second sedimentation tank, and the third sedimentation tank are cleaned in time by an excavator, and the cleaned sediment is transported to the evaporation tank, and after natural dehydration and solidification, it is transported to the storage yard or the waste dump. For the abandoned mud water, flocculants are added to the mud water. Since mud water is a suspended liquid containing a certain am...

Choosing water-saving equipment and integrating recycling functions is the key to fundamentally reducing water consumption. Select advanced sand washing equipment Bucket-type sand washing machine: The structure is simple, with almost no wearables except for the screen, and the failure rate is low. It adopts a circulating water cleaning method and is one of the relatively more water-efficient mainstream choices currently. Integrated sand washing equipment: This type of equipment integrates sand washing, fine sand recycling, dehydration, and even wastewater treatment functions into one, significantly simplifying the process flow. For example, some new equipment uses built-in bubble flushing technology to improve the flushing effect and avoid secondary cleaning waste caused by incomplete cleaning. Mandatory water recycling system Modern sand washing equipment usually comes with a water recycling system, which can collect, filter, and reuse water during the cleaning cycle. This approach ca...

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.

 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...

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,...

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.