Fish killing wastewater treatment device

Abstract

The invention discloses a fish killing wastewater treatment device which comprises an external mounting mechanism for being externally mounted in a pipeline, a spiral pressing mechanism for filtering fish scales, an air bag jacking mechanism jacked up by extrusion of an air bag, a hydraulic jacking mechanism jacked up by hydraulic pressure and a magnetic filtering mechanism for magnetically attracting and filtering the fish scales, wherein a shell is arranged in the external mounting mechanism, the external mounting mechanism is fixedly connected with the spiral pressing mechanism through the arranged shell, a cylinder is arranged in the external mounting mechanism, the external mounting mechanism is fixedly connected with the magnetic filtering mechanism through the arranged cylinder, and the external mounting mechanism is provided with the air bag jacking mechanism through thearranged cylinder. The spiral blades are designed to be elastic and spiral, gradually descend according to the size of the blocked hole and shake back and forth under the condition that the blocked hole is not fixed, so that fish scales on the spiral blades are gradually shaken down, and collection of the fish scales is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a wastewater treatment device for slaughtering fish. Background technique [0002] Fish is a temperature-changing aquatic vertebrate that breathes through gills, swims through the swing of the tail and trunk, and coordinates the fins, and feeds with the upper and lower jaws. It belongs to the vertebrate subphylum in the chordate phylum. Generally, people divide vertebrates into Fishes, birds, reptiles, mammals, and amphibians. According to the statistics of Canadian scholar Nielsen in 1994, there are 24,618 species of fishes in the world, accounting for more than half of the named vertebrates, and new species of fishes It is constantly being discovered, with an average of about 150 species per year, which should have increased by more than 1,500 species in more than ten years. At present, there are about 32,100 named fish species in the world; the most co...

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Problems solved by technology

[0003] After the fish are cleaned, the cleaned wastewater is treated uniformly, and the scales of the fish can be reused very well. However, when the current device filters the fish scales, because the scales of the big carp are relatively large, it is easy to block the water outlet, resulting in Filter blocked

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