Sludge cutting machine

Sludge strip cutter is a mechanical device specially used for processing dewatered sludge and cutting it into uniform strips for subsequent drying, incineration or other treatment methods. This equipment is often used in sewage treatment plants, sludge disposal centers and other places, which helps to improve the heat transfer efficiency of sludge and improve the operating efficiency of treatment facilities. The following is a detailed introduction to the working principle, main features and application of the sludge strip cutter: Working principle: 1. Sludge feeding: Semi-dry or dried sludge that has been dehydrated is evenly fed into the strip cutter through the feeding device. 2. Strip forming: Inside the strip cutter, high-speed rotating knives (such as hobs, flat knives or disc knives, etc.) are installed. The sludge is continuously cut into strips of set thickness and width under the shear force of the knives. Parameters such as the shape, number, arrangement and rotation speed of the knives can be adjusted according to the properties of the sludge and the required strip size. 3. Discharge collection: The cut sludge strips are discharged through the discharge port, and are usually equipped with conveying equipment (such as belt conveyors, screw conveyors, etc.) to transport them to subsequent treatment links, such as sludge drying beds, incinerators, etc. Main features: - Uniform strip cutting: Through the precision-designed knives and control systems, the size of the cut sludge strips is ensured to be consistent, which is conducive to improving the thermal efficiency and processing capacity of the subsequent processing equipment. - Strong adaptability: It can handle sludge of different dehydration degrees (such as sludge produced by plate and frame dehydration, centrifugal dehydration, belt filter press dehydration, etc.), and can adjust the size of the strips according to the sludge characteristics and treatment requirements. - Continuous operation: The sludge strip cutter is usually designed as a continuous feeding, continuous cutting, and continuous discharging mode, which can meet the needs of large-scale sludge treatment and improve the overall treatment efficiency. - Wear-resistant and corrosion-resistant: Parts in contact with sludge (such as knives, hoppers, discharge ports, etc.) are usually made of wear-resistant and corrosion-resistant materials to resist the wear and chemical erosion of sludge and extend the service life of the equipment. - Easy to maintain: The equipment has a compact structure, easy knife replacement, and small daily maintenance workload. Application: - Sludge drying: The sludge after stripping is sent to the drying equipment (such as fluidized bed dryer, belt dryer, etc.). Since the strip sludge has a larger surface area, it is conducive to the heat exchange between hot air and sludge, accelerates the evaporation of water, and improves the drying efficiency. - Sludge incineration: After the sludge after stripping enters the incinerator, due to its good ventilation and uniform combustion characteristics, it can improve the combustion efficiency, reduce the coking phenomenon, reduce the difficulty of flue gas treatment, and is conducive to the subsequent treatment of ash. - Land use: For sludge suitable for land use, stripping can improve its mixing uniformity with soil, facilitate nutrient release and microbial activity, and improve the land improvement effect. - Building material utilization: The sludge after stripping is mixed with other materials (such as cement, sand, etc.) to prepare environmentally friendly building materials (such as sludge bricks, sludge ceramsite, etc.). Stripping helps to improve the homogeneity and molding performance of the mixture. In general, as an important sludge pretreatment equipment, the sludge strip cutter effectively improves the subsequent treatment performance of the sludge by cutting the dewatered sludge into uniform strips, improves the operating efficiency and economy of the entire sludge treatment system, and is of great significance to the realization of sludge reduction, harmlessness and resource utilization.