Ecological block prepared by riverway silt, and method and device for preparing ecological block
A technology for river silt and silt, applied in chemical instruments and methods, sludge treatment, manufacturing tools, etc., can solve the problems of low acceptance, limited scope of application, low addition of solid waste, etc., and achieve good environmental protection, The effect of excellent compression resistance
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[0046] Example 1
[0047] The river silt of a river in Shenzhen, Guangdong Province is dredged by a cutter suction dredger and the dredged river silt is obtained. The dredged river sludge is pumped to the gravel separator through the first sludge pump. The stone separator separates the materials with a particle size of 2mm or more in the dredged river silt, and the particles with a particle size of 3mm or more are regarded as garbage and removed. The particle size is 2-3mm as sand, and sand can be used as fine bones. The pre-treated river sludge is obtained after the garbage is removed and the sand is separated; the pre-treated river sludge is pumped to the sludge thickener through the second sludge pump, and is pre-treated in the sludge thickener through the auxiliary feeder Add auxiliary agents to the treated river sludge for passivation conditioning and concentration to obtain passivated river sludge. For each ton of dry river sludge weight, add 50kg of calcium oxide, 50kg of ...
Example Embodiment
[0048] Example 2
[0049] The river sludge of a river in Shenzhen, Guangdong Province is dredged by a cutter suction dredger to obtain the dredged river sludge. The dredged river sludge is pumped to the gravel separator through the first sludge pump. The separator separates the materials with a particle size of 2mm or more in the dredged river silt. Among them, those with a particle size of 3mm or more are regarded as garbage and removed, and those with a particle size of 2-3mm are sand, which can be used as fine aggregates. Use, remove garbage and separate sand and gravel to obtain pre-treated river sludge; the pre-treated river sludge is pumped to the sludge thickener by the second sludge pump, and pretreated into the sludge thickener through the auxiliary feeder Add auxiliary agents to the sludge of the river channel for passivation, conditioning and concentration to obtain passivated river sludge. For each ton of dry mud weight of the river sludge, add 55kg of calcium oxide, ...
Example Embodiment
[0050] Example 3
[0051] The river sludge of a river in Shenzhen, Guangdong Province is dredged by a cutter suction dredger to obtain the dredged river sludge. The dredged river sludge is pumped to the gravel separator through the first sludge pump. The separator separates the materials with a particle size of 2mm or more in the dredged river silt. Among them, those with a particle size of 3mm or more are regarded as garbage and removed, and those with a particle size of 2-3mm are sand, which can be used as fine aggregates. Use, remove garbage and separate sand and gravel to obtain pre-treated river sludge; the pre-treated river sludge is pumped to the sludge thickener by the second sludge pump, and pretreated into the sludge thickener through the auxiliary feeder Add auxiliary agents to the sludge of the river channel for passivation, conditioning and concentration to obtain passivated river sludge. For each ton of river silt dry mud weight, 60kg of calcium oxide, 50kg of ferri...
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