Sludge snail stacking machine

The sludge spiral stacker (also known as spiral stack sludge dewatering machine) is an innovative sludge dewatering equipment. Its unique feature is that it adopts a structural design that combines a spiral shaft with a stack of laminations, which can effectively dewater the sludge under continuous, automatic and low-energy conditions. The following is a detailed introduction to the working principle, characteristics and application scope of the sludge spiral stacker: Working principle of the sludge spiral stacker: 1. Laminated structure: The core part of the sludge spiral stacker is the spiral shaft and the laminations around its periphery (composed of many thin stainless steel sheets stacked on each other). A series of gradually shrinking filter gaps are formed between the laminations, and as the spiral shaft rotates, these gaps exert a gradually increasing mechanical squeezing force on the sludge. 2. Sludge conveying and concentration: The sludge to be treated enters the spiral stacker through the feed port and moves forward under the push of the spiral shaft. In the early stage, the gaps between the laminations are large, and the sludge initially removes some free water under the action of gravity to achieve initial concentration. 3. Screw pressing dewatering: As the sludge moves toward the outlet of the equipment, the gaps between the laminations gradually decrease, exerting an increasing squeezing force on the sludge. At the same time, the spiral blades produce a dual axial and radial squeezing effect on the sludge, forcing the water in the sludge to be discharged through the gap between the stacking sheets. Due to the unique design of the stacking sheets, the sludge is not easy to be blocked during the squeezing process, and the dehydration effect is gradually enhanced. 4. Self-cleaning function: During the operation of the spiral stacker, there is a relative movement between the stacking sheets and the spiral shaft, which makes the stacking sheets constantly refreshed, prevents sludge blockage, and maintains good filtering performance. In addition, the equipment is also equipped with an automatic spray cleaning system to regularly flush the stacking sheets to ensure dehydration efficiency and equipment operation stability. 5. Dehydrated mud cake discharge: After sufficient squeezing and dehydration, the sludge forms a dry and hard mud cake, which is discharged from the mud discharge port at the end of the equipment. The dehydrated mud cake has a low moisture content and a greatly reduced volume, which is convenient for subsequent treatment or disposal. Features of sludge spiral stacker: - Continuous operation: The spiral stacker can realize continuous feeding, continuous dehydration, and continuous mud discharge, without the need to frequently stop the filter belt for cleaning like traditional belt dehydrators, which improves work efficiency. - Low energy consumption: The equipment has low operating power and does not require large auxiliary equipment such as high-pressure pumps, so the energy consumption cost is low. - Small footprint: The equipment is compact, simple in structure, and occupies little space, suitable for various site conditions. - Strong adaptability: It is suitable for dewatering various types of sludge such as oily sludge, sticky sludge, organic sludge, etc., and has strong adaptability to sludge concentration fluctuations. - Easy maintenance: There are no wearing parts such as filter cloth and filter belt, so the maintenance workload is small and the service life is long. Application scope of sludge snail stacker: Sludge snail stacker is widely used in various industries and fields that produce sludge, including but not limited to: - Municipal sewage treatment plant: Dewater the residual sludge generated in the process of domestic sewage treatment to reduce the volume of sludge and facilitate subsequent transportation and disposal. - Industrial wastewater treatment: Such as food, beverage, papermaking, leather, chemical, pharmaceutical, electroplating, printing and dyeing industries, dewater the sludge generated by industrial wastewater treatment. - Animal husbandry: Treat fecal sludge generated by pig, chicken, cattle and other farms to realize the resource utilization of feces and sewage. - Solid waste treatment: Dehydration of sludge generated during the treatment of solid waste such as kitchen waste, municipal solid waste, and organic waste. - River dredging: Dehydration of bottom sludge generated during the dredging of rivers, lakes, and other water bodies to help manage the water environment. In general, the sludge spiral stacker, with its unique structural design and working principle, achieves efficient, energy-saving, and continuous dehydration of sludge, and has become a widely used equipment in the field of modern sludge treatment.