Device for treating aquatic plants in real time and application of device

Abstract

The invention relates to a device for treating aquatic plants in real time, comprising a prior-period grinding mechanism and a spiral solid-liquid separator, wherein a grinder in the prior-period grinding mechanism is located on the top of a stirring tank, a stirring blade in a stirring device is located on the central axis of the stirring tank, a suction port of a submersible sewage pump is located at the bottom of the stirring tank, and an output port of the submersible sewage pump is abutted joint with a feed port in the spiral solid-liquid separator; and the spiral solid-liquid separator comprises an extrusion channel consisting of the feed port, a dehydration outlet and a residue outlet, wherein the extrusion channel is internally provided with a spiral propulsion blade matched with the extrusion channel, the diameter of the extrusion channel is gradually reduced into a cone from the end of the feed port to the end of the residue outlet, a central shaft of the spiral propulsion blade is supported in the extrusion channel by using a bearing, one end of the central shaft is connected with an output shaft of a driving motor after extending out of the extrusion channel from the feed port, the residue outlet is provided with a resistance regulating device, and the dehydration outlet is located below the extrusion channel. The device can be used for carrying out dehydration treatment on fished aquatic plants and residual bodies thereof.

Description

technical field [0001] The invention relates to equipment for dehydrating aquatic plants through extrusion and an application thereof, which is a key technology for resource utilization of plant residues based on water pollution restoration and belongs to the field of environmental protection. Background technique [0002] Affected by industrial wastewater, domestic sewage discharge and agricultural non-point source pollution, the eutrophication of water body is increasing day by day. The important sign of water body eutrophication is that the content of N and P in the water body seriously exceeds the standard, but at the same time, if nitrogen, phosphorus and other nutrients are added Utilization will be a huge nutrient resource pool, and it can also purify water quality. Aquatic plants are an important primary productivity in freshwater ecosystems. In recent years, the absorption, degradation or fixation of nitrogen and phosphorus components by aquatic plants has been use...

AI Technical Summary

Problems solved by technology

[0007] The above patents all mentioned the extrusion dehydration of water hyacinth, but none of them proposed the dehydration efficiency and the degree of dehydration that can be achieved. Existing squeeze type, strip type and screw type Type and other solid-liquid separators can be used for extrusion dehydration of aquatic plants, but the degree of dehydration is low and it is difficult to meet the requirement that the water content required for subsequent extrusion slag composting is lower than 80%. Furthermore, the dehydration efficiency of existing dehydration equipment Low, can not operate continuously, it is difficult to meet the needs of large-scale dehydration of aquatic plants

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