Floating oncomelania blocking device with clamping grooves

Abstract

The invention provides a floating oncomelania blocking device with clamping grooves, which is arranged in an oncomelania sinking tank, and comprises oncomelania blocking walls and clamping grooves which are respectively arranged on the two side walls of the oncomelania sinking tank, wherein the oncomelania blocking walls are respectively inserted in the clamping grooves, and the height of the oncomelania blocking walls is 0.5-0.6m. The device utilizes the clamping grooves and the floating oncomelania blocking walls to replace the traditional bricking concrete wall, when the water flow which contains oncomelania passes by the oncomelania blocking walls, floaters on the water surface can be blocked so that oncomelania is prevented from being spread to the downstream along with the water flow; and moreover, the oncomelania blocking walls can float up and down along with the water level, so the technical problem of an overlarge current-obstruction area under the conditions of canal system drainage, irrigation and other high water levels are effectively solved. The oncomelania blocking walls are reasonable in design and simple in structure, are flexible to install and convenient for getting materials, completely meet the requirements of preventing and controlling oncomelania spreading in a shistosoma affected area, and have a good popularization prospect.

Description

technical field [0001] The invention relates to the field of water conservancy and schistosomiasis prevention, in particular to a slotted floating snail blocking device. Background technique [0002] Schistosomiasis is a major infectious disease that seriously endangers people's health and safety, and affects social and economic development. It has been seriously prevalent in 12 provinces, municipalities and autonomous regions including Jiangsu, Zhejiang, Jiangxi, Anhui, Fujian, Shanghai, Guangdong, Guangxi, Hunan, Hubei, Yunnan and Sichuan in southern China. , the infection rate ranks first in water-borne diseases. Oncomelania is the largest pathogen carrier of schistosomiasis and the only intermediate host of schistosomiasis. Practice has proved that controlling the spread of snails can effectively block the local transmission and prevalence of schistosomiasis. [0003] Water conservancy combined with schistosomiasis prevention and control is mainly through water conser...

AI Technical Summary

Problems solved by technology

[0007] Existing snail blocking wall has the following problems: (1) the position is fixed and cannot be adjusted

Most of the current snail-blocking walls are constructed of brick concrete, the position is fixed, and the layout is not flexible enough

(2) The water blocking area is large, which affects flood control and drainage or water diversion for irrigation

(3) The screw control effect is not good

Due to the relatively large change in the water level of the channel, when the water level overflows the snail blocking wall or is lower than the bottom hole of the snail blocking wall, the effect of intercepting floating objects cannot be achieved.

Images