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Fish ponds dredging and selecting machinery
In winter, it is a good season for fish pond dredging and pond-building fish cultivation. The following describes the selection methods for dredging and dredging machinery for fish ponds. 1. The ponds should be dredged and the hydraulic digging pond units should be used. The unit can suck up sludge and carry out operations such as long-distance transport, composting, and land reclamation. In addition, a multi-functional dredging motor ship can also be used. The ship can use suffocating suction to ensure the continuous operation of dredging, and can directly transport the sludge to a place 200 meters away from the fish pond. The mud concentration can reach over 90%. . 2. Excavation and expansion of fish ponds with water should be selected hydraulic units. The unit can simultaneously complete the five processes of digging, loading, transporting, unloading and arranging. 3. New excavation of waterless ponds, bulldozers should be used. About 500 to 500 earths can be completed per bulldozer per day. The excavation operation point should be started from the ground. Pushing the earth into the perimeter of the surrounding slope will build a dam, which can play a role in compacting the bottom of the pond and the slope and preventing leakage. Matters needing attention: 1 In the use of pond dredging machinery, according to different soil quality, choose the appropriate flushing pressure and impact method. If the sediment or mud in the bottom of the tank is removed, the flushing pressure is generally 3.5 kg/cm2; if the original loess is removed, 5 kg/cm2 is needed; if the compacted clay or original fine sand is removed, 7.5 kg/cm2 is required. The distance from the water gun to the impact surface is generally not more than 4 meters. The suction concentration of the mud pump is 60% to 80%, and the diameter of mud blocks and impurities should be less than 50 mm. 2 During operation, the unit should be regularly cleaned, overhauled, refueled, and replaced with damaged parts. Conduct safety inspections on electromechanical equipment. Pump filter mouth should be added filter cover, motor should be covered with shell protection.